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• This comparison shows the changes necessary to convert path

  → /tags/V2.08a/libstr91x/src/ @ 578

  → /tags/V2.08a/libstr91x/src/ @ 579

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• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 578 → Rev 579

/tags/V2.08a/libstr91x/src/91x_adc.c
0,0 → 1,684
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_adc.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the ADC firmware functions.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH
* CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS
* A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
* OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
* OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
* CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Standard include ----------------------------------------------------------*/
#include "91x_adc.h"
#include "91x_scu.h"
/* Include of other module interface headers ---------------------------------*/
/* Local includes ------------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* ADC mask */
#define ADC_FLAG_MASK 0x001F /* ADC Flag Mask */
#define ADC_RESULT_MASK 0x03FF /* ADC Result Mask */
#define ADC_SCAN_MODE_MASK 0x0020 /* ADC Sacn Mode Mask */
#define ADC_STANDBY_MODE_MASK 0x0008 /* ADC Standby Mode Mask */
#define ADC_CMD_MASK 0x0002 /* ADC Command Mask */
#define ADC_CHANNEL_MASK 0xFE3F /* ADC Channel Select Mask */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Interface functions -------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : ADC_DeInit
* Description : Deinitialize the ADC module registers to their default reset
* values
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void ADC_DeInit(void)
{
/* Reset the ADC registers values */
SCU_APBPeriphReset(__ADC,ENABLE);
SCU_APBPeriphReset(__ADC,DISABLE);
}
/*******************************************************************************
* Function Name : ADC_Init
* Description : Initializes ADC peripheral according to the specified
* parameters in the ADC_InitTypeDef structure.
* Input : ADC_InitStruct: pointer to a ADC_InitTypeDef structure that
* contains the configuration information for the specified
* ADC peripheral.
* Output : None
* Return : None
*******************************************************************************/
void ADC_Init(ADC_InitTypeDef* ADC_InitStruct)
{
/* Set the low threshold of the watchdog */
ADC->LTR = ADC_InitStruct->ADC_WDG_Low_Threshold;
/* Set the high threshold of the watchdog */
ADC->HTR = ADC_InitStruct->ADC_WDG_High_Threshold;
/* Channel 0 conversion mode */
ADC->CCR &= 0xFFFC;
ADC->CCR |= ADC_InitStruct->ADC_Channel_0_Mode;
/* Channel 1 conversion mode */
ADC->CCR &= 0xFFF3;
ADC->CCR |= ADC_InitStruct->ADC_Channel_1_Mode << 0x2;
/* Channel 2 conversion mode */
ADC->CCR &= 0xFFCF;
ADC->CCR |= ADC_InitStruct->ADC_Channel_2_Mode << 0x4;
/* Channel 3 conversion mode */
ADC->CCR &= 0xFF3F;
ADC->CCR |= ADC_InitStruct->ADC_Channel_3_Mode << 0x6;
/* Channel 4 conversion mode */
ADC->CCR &= 0xFCFF;
ADC->CCR |= ADC_InitStruct->ADC_Channel_4_Mode << 0x8;
/* Channel 5 conversion mode */
ADC->CCR &= 0xF3FF;
ADC->CCR |= ADC_InitStruct->ADC_Channel_5_Mode << 0xA;
/* Channel 6 conversion mode */
ADC->CCR &= 0xCFFF;
ADC->CCR |= ADC_InitStruct->ADC_Channel_6_Mode << 0xC;
/* Channel 7 conversion mode */
ADC->CCR &= 0x3FFF;
ADC->CCR |= ADC_InitStruct->ADC_Channel_7_Mode << 0xE;
/* Select the channel to be converted */
ADC->CR &= ADC_CHANNEL_MASK;
ADC->CR |= ADC_InitStruct->ADC_Select_Channel << 0x6;
/* Enable/disable the scan mode */
if (ADC_InitStruct->ADC_Scan_Mode == ENABLE)
{
/* Enable the scan mode */
ADC->CR |= ADC_SCAN_MODE_MASK;
}
else
{
/* Disable the scan mode */
ADC->CR &= ~ADC_SCAN_MODE_MASK;
}
/* Configure the conversion mode */
if (ADC_InitStruct->ADC_Conversion_Mode == ADC_Continuous_Mode)
{
/* ADC continuous mode */
ADC->CR |= ADC_Continuous_Mode;
}
else
{
/* ADC single mode */
ADC->CR &= ADC_Single_Mode;
}
}
/*******************************************************************************
* Function Name : ADC_StructInit
* Description : Fills each ADC_InitStruct member with its reset value.
* Input : ADC_InitStruct : pointer to a ADC_InitTypeDef structure
* which will be initialized.
* Output : None
* Return : None.
*******************************************************************************/
void ADC_StructInit(ADC_InitTypeDef* ADC_InitStruct)
{
ADC_InitStruct->ADC_WDG_High_Threshold = 0x0000;
ADC_InitStruct->ADC_WDG_Low_Threshold = 0x0000;
ADC_InitStruct->ADC_Channel_0_Mode = ADC_No_Conversion;
ADC_InitStruct->ADC_Channel_1_Mode = ADC_No_Conversion;
ADC_InitStruct->ADC_Channel_2_Mode = ADC_No_Conversion;
ADC_InitStruct->ADC_Channel_3_Mode = ADC_No_Conversion;
ADC_InitStruct->ADC_Channel_4_Mode = ADC_No_Conversion;
ADC_InitStruct->ADC_Channel_5_Mode = ADC_No_Conversion;
ADC_InitStruct->ADC_Channel_6_Mode = ADC_No_Conversion;
ADC_InitStruct->ADC_Channel_7_Mode = ADC_No_Conversion;
ADC_InitStruct->ADC_Select_Channel = ADC_Channel_0;
ADC_InitStruct->ADC_Scan_Mode = DISABLE;
ADC_InitStruct->ADC_Conversion_Mode = ADC_Single_Mode;
}
/*******************************************************************************
* Function Name : ADC_PrescalerConfig
* Description : This routine is used to configure the ADC prescaler value.
* Input : ADC_Prescaler: specifies the prescaler value. This parameter
* can be a value from 0x0 to 0xFF.
* Output : None
* Return : None
*******************************************************************************/
void ADC_PrescalerConfig(u8 ADC_Prescaler)
{
ADC->PRS &= 0xFF00;
ADC->PRS |= ADC_Prescaler;
}
/*******************************************************************************
* Function Name : ADC_GetPrescalerValue
* Description : This routine is used to get the ADC prescaler value.
* Input : None
* Output : None
* Return : The prescaler value.
*******************************************************************************/
u8 ADC_GetPrescalerValue(void)
{
return ADC->PRS & 0x00FF;
}
/*******************************************************************************
* Function Name : ADC_GetFlagStatus
* Description : Checks whether the specified ADC flag is set or not.
* Input : ADC_Flag: flag to check.
* This parameter can be one of the following values:
* - ADC_FLAG_OV_CH_0: Conversion overflow status for
* channel 0.
* - ADC_FLAG_OV_CH_1: Conversion overflow status for
* channel 1.
* - ADC_FLAG_OV_CH_2: Conversion overflow status for
* channel 2.
* - ADC_FLAG_OV_CH_3: Conversion overflow status for
* channel 3.
* - ADC_FLAG_OV_CH_4: Conversion overflow status for
* channel 4.
* - ADC_FLAG_OV_CH_5: Conversion overflow status for
* channel 5.
* - ADC_FLAG_OV_CH_6: Conversion overflow status for
* channel 6.
* - ADC_FLAG_OV_CH_7: Conversion overflow status for
* channel 7.
* - ADC_FLAG_ECV: End of conversion status.
* - ADC_FLAG_AWD: Analog watchdog status.
* Output : None
* Return : The NewState of the ADC_Flag (SET or RESET).
*******************************************************************************/
FlagStatus ADC_GetFlagStatus(u16 ADC_Flag)
{
u8 AdcReg = 0, FlagPos = 0;
/* Get the ADC register index */
AdcReg = ADC_Flag >> 5;
/* Get the flag position */
FlagPos = ADC_Flag & ADC_FLAG_MASK;
if(AdcReg == 1) /* The flag to check is in CR register */
{
if((ADC->CR & (1<<FlagPos))!= RESET)
{
return SET;
}
else
{
return RESET;
}
}
else if(AdcReg == 6) /* The flag to check is in DR0 register */
{
if((ADC->DR0 & (1<<FlagPos))!= RESET)
{
return SET;
}
else
{
return RESET;
}
}
else if(AdcReg == 7) /* The flag to check is in DR1 register */
{
if((ADC->DR1 & (1<<FlagPos))!= RESET)
{
return SET;
}
else
{
return RESET;
}
}
else if(AdcReg == 8) /* The flag to check is in DR2 register */
{
if((ADC->DR2 & (1<<FlagPos))!= RESET)
{
return SET;
}
else
{
return RESET;
}
}
else if(AdcReg == 9) /* The flag to check is in DR3 register */
{
if((ADC->DR3 & (1<<FlagPos))!= RESET)
{
return SET;
}
else
{
return RESET;
}
}
else if(AdcReg == 0xA) /* The flag to check is in DR4 register */
{
if((ADC->DR4 & (1<<FlagPos))!= RESET)
{
return SET;
}
else
{
return RESET;
}
}
else if(AdcReg == 0xB) /* The flag to check is in DR5 register */
{
if((ADC->DR5 & (1<<FlagPos))!= RESET)
{
return SET;
}
else
{
return RESET;
}
}
else if(AdcReg == 0xC) /* The flag to check is in DR6 register */
{
if((ADC->DR6 & (1<<FlagPos))!= RESET)
{
return SET;
}
else
{
return RESET;
}
}
else /* (AdcReg == 0xD), The flag to check is in DR7 register */
{
if((ADC->DR7 & (1<<FlagPos))!= RESET)
{
return SET;
}
else
{
return RESET;
}
}
}
/*******************************************************************************
* Function Name : ADC_ClearFlag
* Description : Clears the ADC Flag passed as a parameter.
* Input : ADC_Flag: flag to clear.
* This parameter can be one of the following values:
* - ADC_FLAG_ECV: End of conversion status.
* - ADC_FLAG_AWD: Analog watchdog status.
* Output : None
* Return : None
*******************************************************************************/
void ADC_ClearFlag(u16 ADC_Flag)
{
vu16 tmp=0;
/* Clear the correspondent flag */
if (ADC_Flag==ADC_FLAG_ORD)
tmp = ADC->DDR;
else
ADC->CR |= (1<<(ADC_Flag & ADC_FLAG_MASK));
}
/*******************************************************************************
* Function Name : ADC_GetConversionValue
* Description : Read the result of conversion from the appropriate data
* register.
* Input : ADC_Channel: the correspondent channel of the ADC peripheral.
* This parameter can be one of the following values:
* - ADC_Channel_0: ADC channel 0.
* - ADC_Channel_1: ADC channel 1.
* - ADC_Channel_2: ADC channel 2.
* - ADC_Channel_3: ADC channel 3.
* - ADC_Channel_4: ADC channel 4.
* - ADC_Channel_5: ADC channel 5.
* - ADC_Channel_6: ADC channel 6.
* - ADC_Channel_7: ADC channel 7.
* Output : None
* Return : The result of the conversion for the specific channel.
*******************************************************************************/
u16 ADC_GetConversionValue(u16 ADC_Channel)
{
u16 ADC_Conversion_Value = 0;
switch (ADC_Channel)
{
case (ADC_Channel_0):
/* Get the conversion value of the channel 0 */
ADC_Conversion_Value = ADC->DR0 & ADC_RESULT_MASK;
break;
case (ADC_Channel_1):
/* Get the conversion value of the channel 1 */
ADC_Conversion_Value = ADC->DR1 & ADC_RESULT_MASK;
break;
case (ADC_Channel_2):
/* Get the conversion value of the channel 2 */
ADC_Conversion_Value = ADC->DR2 & ADC_RESULT_MASK;
break;
case (ADC_Channel_3):
/* Get the conversion value of the channel 3 */
ADC_Conversion_Value = ADC->DR3 & ADC_RESULT_MASK;
break;
case (ADC_Channel_4):
/* Get the conversion value of the channel 4 */
ADC_Conversion_Value = ADC->DR4 & ADC_RESULT_MASK;
break;
case (ADC_Channel_5):
/* Get the conversion value of the channel 5 */
ADC_Conversion_Value = ADC->DR5 & ADC_RESULT_MASK;
break;
case (ADC_Channel_6):
/* Get the conversion value of the channel 6 */
ADC_Conversion_Value = ADC->DR6 & ADC_RESULT_MASK;
break;
case (ADC_Channel_7):
/* Get the conversion value of the channel 7 */
ADC_Conversion_Value = ADC->DR7 & ADC_RESULT_MASK;
break;
default:
break;
}
return(ADC_Conversion_Value);
}
/*******************************************************************************
* Function Name : ADC_GetAnalogWatchdogResult
* Description : Return the result of the comparaison on the selected Analog
* Watchdog.
* Input : ADC_Channel: the correspondent channel of the ADC peripheral.
* This parameter can be one of the following values:
* - ADC_Channel_0: ADC channel 0.
* - ADC_Channel_1: ADC channel 1.
* - ADC_Channel_2: ADC channel 2.
* - ADC_Channel_3: ADC channel 3.
* - ADC_Channel_4: ADC channel 4.
* - ADC_Channel_5: ADC channel 5.
* - ADC_Channel_6: ADC channel 6.
* - ADC_Channel_7: ADC channel 7.
* Output : None
* Return : The state of the comparision (SET or RESET).
*******************************************************************************/
FlagStatus ADC_GetAnalogWatchdogResult(u16 ADC_Channel)
{
if ((ADC->CRR & (1<<ADC_Channel)) != RESET)
{
return SET;
}
else
{
return RESET;
}
}
/*******************************************************************************
* Function Name : ADC_ClearAnalogWatchdogResult
* Description : Clear the result of the comparaison on the selected Analog
* Watchdog.
* Input : ADC_Channel: the correspondent channel of the ADC peripheral.
* This parameter can be one of the following values:
* - ADC_Channel_0: ADC channel 0.
* - ADC_Channel_1: ADC channel 1.
* - ADC_Channel_2: ADC channel 2.
* - ADC_Channel_3: ADC channel 3.
* - ADC_Channel_4: ADC channel 4.
* - ADC_Channel_5: ADC channel 5.
* - ADC_Channel_6: ADC channel 6.
* - ADC_Channel_7: ADC channel 7.
* Output : None
* Return : None
*******************************************************************************/
void ADC_ClearAnalogWatchdogResult(u16 ADC_Channel)
{
/* Clear the correspondent watchdog result */
ADC->CRR = 1<<ADC_Channel;
}
/*******************************************************************************
* Function Name : ADC_GetWatchdogThreshold
* Description : Get the higher/lower thresholds values of the watchdog.
* Input : ADC_Threshold: the lower or the higher threshold.
* This parameter can be one of the following values:
* - ADC_HigherThreshold: The higher threshold.
* - ADC_LowerThreshold: The lower threshold.
* Output : None
* Return : The selected threshold value.
*******************************************************************************/
u16 ADC_GetWatchdogThreshold(ADC_ThresholdType ADC_Threshold)
{
u16 ADC_Threshold_Value = 0;
switch (ADC_Threshold)
{
case ADC_LowThreshold:
/* Get the low threshold of the watchdog */
ADC_Threshold_Value = ADC->LTR;
break;
case ADC_HighThreshold:
/* Get the high threshol of the watchdog */
ADC_Threshold_Value = ADC->HTR;
break;
default:
break;
}
return(ADC_Threshold_Value);
}
/*******************************************************************************
* Function Name : ADC_ITConfig
* Description : Enables or disables the specified ADC interrupts.
* Input : - ADC_IT: specifies the ADC interrupts sources to be enabled
* or disabled.
* This parameter can be one of the following values:
* - ADC_IT_EndOfConversion: End of conversion interrupt.
* - ADC_IT_AnalogWDG: Analog watchdog interrupt.
* - ADC_NewState: new state of the specified ADC interrupts.
* (ADC_Newstate can be ENABLE or DISABLE).
* Output : None
* Return : None
*******************************************************************************/
void ADC_ITConfig(u16 ADC_IT, FunctionalState ADC_NewState)
{
if (ADC_IT==ADC_IT_ORD)
{
if (ADC_NewState == ENABLE)
/* Enable the interrupt */
ADC->CR2 |= ADC_IT;
else
/* Disable the interrupt */
ADC->CR2 &= ~ADC_IT;
}
else{
if (ADC_NewState == ENABLE)
/* Enable the interrupt */
ADC->CR |= ADC_IT;
else
/* Disable the interrupt */
ADC->CR &= ~ADC_IT;
}
}
/*******************************************************************************
* Function Name : ADC_StandbyModeCmd
* Description : Enable or disable the standby mode.
* Input : ADC_NewState: new state of the ADC standby mode.
* (ADC_Newstate can be ENABLE or DISABLE).
* Output : None
* Return : None
*******************************************************************************/
void ADC_StandbyModeCmd(FunctionalState ADC_NewState)
{
if (ADC_NewState == ENABLE)
{
/* Enable the standby mode */
ADC->CR |= ADC_STANDBY_MODE_MASK;
}
else
{
/* Disable the standby mode */
ADC->CR &= ~ADC_STANDBY_MODE_MASK;
}
}
/*******************************************************************************
* Function Name : ADC_Cmd
* Description : Power on or put in reset mode the ADC peripheral.
* Input : ADC_NewState: new state of the ADC peripheral.
* (ADC_Newstate can be ENABLE or DISABLE).
* Output : None
* Return : None
*******************************************************************************/
void ADC_Cmd(FunctionalState ADC_NewState)
{
if (ADC_NewState == ENABLE)
{
/* Enable the ADC */
ADC->CR |= ADC_CMD_MASK;
}
else
{
/* Disable the ADC */
ADC->CR &= ~ADC_CMD_MASK;
}
}
/*******************************************************************************
* Function Name : ADC_ConversionCmd
* Description : Start or stop the ADC conversion in the selected mode.
* Input : ADC_Conversion: the conversion command.
* This parameter can be one of the following values:
* - ADC_Conversion_Start: Start the conversion.
* - ADC_Conversion_Stop: Stop the Conversion.
* Output : None
* Return : None
*******************************************************************************/
void ADC_ConversionCmd(u16 ADC_Conversion)
{
if (ADC_Conversion == ADC_Conversion_Start)
{
/* Start the ADC conversion */
ADC->CR |= ADC_Conversion_Start;
}
else
{
/* Stop the ADC conversion */
ADC->CR &= ADC_Conversion_Stop;
}
}
/*******************************************************************************
* Function Name : ADC_ExternalTrigConfig
* Description : source and edge selection of external trigg
* Input : -ADC_ExtTrig_Src
* This parameter can be one of the following values:
* ADC_PWM_Trig : PWM Trigger
* ADC_TIM_Trig : Timer Trigger
* ADC_PIN_Trig : External Trigger Pin
*
* -ADC_ExtTrig_Edge
* This parameter can be one of the following values:
* Falling_ETE :Falling edge
* Rising_ETE :Rising edge
* Output : None
* Return : None
*******************************************************************************/
void ADC_ExternalTrigConfig(u16 ADC_ExtTrig_Src , u16 ADC_ExtTrig_Edge)
{
ADC->CR2 &= 0x3C;
ADC->CR2 |= ADC_ExtTrig_Src;
if (ADC_ExtTrig_Edge== Falling_ETE)
ADC->CR2 |= 0x20;
else
ADC->CR2 &=~0x20; ;
}
/*******************************************************************************
* Function Name : ADC_ExternalTrigCmd
* Description : Enable or disable the external trigg feature.
* Input : ADC_NewState: Can be ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void ADC_ExternalTrigCmd(FunctionalState ADC_NewState)
{
if (ADC_NewState==ENABLE)
ADC->CR2 |= 0x04;
else
ADC->CR2 &=~0x04;
}
/*******************************************************************************
* Function Name : ADC_DMACmd
* Description : Enable or disable the DMA request for ADC
* Input : ADC_NewState: Can be ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void ADC_DMACmd(FunctionalState ADC_NewState)
{
if (ADC_NewState==ENABLE)
ADC->CR2 |= 0x08;
else
ADC->CR2 &=~0x08;
}
/*******************************************************************************
* Function Name : ADC_AutomaticClockGatedCmd
* Description : Enables or disables the Automatic clock gated mode for Fast
* Trigger mode (only in Rev H).
* Input : ADC_NewState: Can be ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void ADC_AutomaticClockGatedCmd(FunctionalState ADC_NewState)
{
if (ADC_NewState==ENABLE)
SCU->GPIOANA |= 0x100;
else
SCU->GPIOANA &=~0x100;
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_ahbapb.c
0,0 → 1,174
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_ahbapb.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the AHBAPB firmware functions.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "91x_ahbapb.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
#define AHBAPB_SplitCounter_Mask 0xFFE0FFFF
#define AHBAPB_SetTimeOut_Mask 0xFFFFFFE0
#define AHBAPB_Address_Mask 0xFEFFFFFF
#define AHBAPB_FLAG_RW_Mask 0x01000000
/*******************************************************************************
* Function Name : AHBAPB_DeInit
* Description : Deinitializes the AHBAPBx peripheral registers to their default
* reset values.
* Input : AHBAPBx: where x can be 0 or 1 to select the AHBAPB peripheral.
* Output : None
* Return : None
*******************************************************************************/
void AHBAPB_DeInit(AHBAPB_TypeDef* AHBAPBx)
{
AHBAPBx->BCR = 0x00000000;
AHBAPBx->BSR = 0x00000000;
}
/*******************************************************************************
* Function Name : AHBAPB_Init
* Description : Initializes the AHBAPBx peripheral according to the specified
* parameters in the AHBAPB_InitStruct .
* Input :- AHBAPBx: where x can be 0 or 1 to select the AHBAPB peripheral.
* - AHBAPB_InitStruct: pointer to a AHBAPB_InitTypeDef structure that
* contains the configuration information for the specified AHBAPB
* peripheral.
* Output : None
* Return : None
*******************************************************************************/
void AHBAPB_Init(AHBAPB_TypeDef* AHBAPBx, AHBAPB_InitTypeDef* AHBAPB_InitStruct)
{
if(AHBAPB_InitStruct->AHBAPB_Split == AHBAPB_Split_Enable)
{
/* Set SPLITEN bit;*/
AHBAPBx->BCR |= AHBAPB_Split_Enable;
/*Split_CNT bits[20:16]*/
AHBAPBx->BCR &= AHBAPB_SplitCounter_Mask;
AHBAPBx->BCR |= (AHBAPB_InitStruct->AHBAPB_SplitCounter)<<16;
}
else
{
/*/ Clear SPLITEN bit;*/
AHBAPBx->BCR &= AHBAPB_Split_Disable;
}
/*APB Time out*/
if(AHBAPB_InitStruct->AHBAPB_Error == AHBAPB_Error_Enable)
{
/* Set ERREN bit*/
AHBAPBx->BCR |= AHBAPB_Error_Enable;
/*Time ouit counter*/
AHBAPBx->BCR &= AHBAPB_SetTimeOut_Mask;
AHBAPBx->BCR |= AHBAPB_InitStruct->AHBAPB_SetTimeOut;
}
else
{
/* Clear ERREN bit*/
AHBAPBx->BCR &= AHBAPB_Error_Disable;
}
}
/*******************************************************************************
* Function Name : AHBAPB_StructInit
* Description : Initialize the AHBAPB Init Structure parameters
* Input : AHBAPB_InitStruct : pointer to a AHBAPB_InitTypeDef structure
* which will be initialized.
* Output : None
* Return : None
*******************************************************************************/
void AHBAPB_StructInit(AHBAPB_InitTypeDef* AHBAPB_InitStruct)
{
/* Reset AHBAPB init structure parameters values */
AHBAPB_InitStruct->AHBAPB_Split = AHBAPB_Split_Enable;
AHBAPB_InitStruct->AHBAPB_SplitCounter = 0xFF;
AHBAPB_InitStruct->AHBAPB_Error = AHBAPB_Error_Enable;
AHBAPB_InitStruct->AHBAPB_SetTimeOut = 0xFF;
}
/*******************************************************************************
* Function Name : AHBAPB_GetFlagStatus
* Description : Checks whether the specified AHBAPB flag is set or not.
* Input : - AHBAPB: where x can be 0 or 1 to select the AHBAPB peripheral
* - AHBAPB_FLAG: specifies the flag to check.
* This parameter can be one of the following values:
* - AHBAPB_FLAG_ERROR: error flag
* - AHBAPB_FLAG_OUTM : Out of Memory flag
* - AHBAPB_FLAG_APBT : APB Time-out flag
* - AHBAPB_FLAG_RW : Access type flag
* Output : None
* Return : The new state of AHBAPB_FLAG (SET or RESET).
*******************************************************************************/
FlagStatus AHBAPB_GetFlagStatus(AHBAPB_TypeDef* AHBAPBx, u8 AHBAPB_FLAG)
{
if(AHBAPB_FLAG == AHBAPB_FLAG_RW)
{
if ((AHBAPBx->PAER & AHBAPB_FLAG_RW_Mask) == RESET)
{
return RESET;
}
else
{
return SET;
}
}
else
{
if ((AHBAPBx->BSR & AHBAPB_FLAG) == RESET)
{
return RESET;
}
else
{
return SET;
}
}
}
/*******************************************************************************
* Function Name : AHBAPB_ClearFlag
* Description : Clears the AHBAPBx flags.
* Input : - AHBAPB: where x can be 0 or 1 to select the AHBAPB peripheral
* - AHBAPB_FLAG: flags to clear. This parameter one of the
* following values:
* - AHBAPB_FLAG_ERROR: error flag
* - AHBAPB_FLAG_OUTM : Out of Memory flag
* - AHBAPB_FLAG_APBT : APB Time-out flag
* Output : None
* Return : None
*******************************************************************************/
void AHBAPB_ClearFlag(AHBAPB_TypeDef* AHBAPBx, u8 AHBAPB_FLAG)
{
/* Clear the flag */
AHBAPBx->BSR &= ~AHBAPB_FLAG;
}
/*******************************************************************************
* Function Name : AHBAPB_GetPeriphAddrError
* Description : Gets the AHBAPB error address peripherals.
* Input : - AHBAPB: where x can be 0 or 1 to select the AHBAPB peripheral
* Output : None
* Return : The Peropheral address error
*******************************************************************************/
u32 AHBAPB_GetPeriphAddrError(AHBAPB_TypeDef* AHBAPBx)
{
u32 AHBAPB_Address = 0x00000000;
/*Return Oeripheral address without RW bit*/
AHBAPB_Address = (AHBAPBx->PAER)& AHBAPB_Address_Mask;
return (AHBAPB_Address);
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_can.c
0,0 → 1,932
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_can.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the CAN firmware functions.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "91x_can.h"
#include "91x_scu.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
/* Macro Name : xxx_ID_MSK, xxx_ID_ARB */
/* Description : Form the Mask and Arbitration registers value to filter */
/* a range of identifiers or a fixed identifier, for standard*/
/* and extended IDs */
/*----------------------------------------------------------------------------*/
#define RANGE_ID_MSK(range_start, range_end) (~((range_end) - (range_start)))
#define RANGE_ID_ARB(range_start, range_end) ((range_start) & (range_end))
#define FIXED_ID_MSK(id) RANGE_ID_MSK((id), (id))
#define FIXED_ID_ARB(id) RANGE_ID_ARB((id), (id))
#define STD_RANGE_ID_MSK(range_start, range_end) ((u16)((RANGE_ID_MSK((range_start), (range_end)) & 0x7FF) << 2))
#define STD_RANGE_ID_ARB(range_start, range_end) ((u16)(RANGE_ID_ARB((range_start), (range_end)) << 2))
#define STD_FIXED_ID_MSK(id) ((u16)((FIXED_ID_MSK(id) & 0x7FF) << 2))
#define STD_FIXED_ID_ARB(id) ((u16)(FIXED_ID_ARB(id) << 2))
#define EXT_RANGE_ID_MSK_L(range_start, range_end) \
((u16)(RANGE_ID_MSK((range_start), (range_end))))
#define EXT_RANGE_ID_MSK_H(range_start, range_end) \
((u16)(RANGE_ID_MSK((range_start), (range_end)) >> 16) & 0x1FFF)
#define EXT_RANGE_ID_ARB_L(range_start, range_end) \
((u16)(RANGE_ID_ARB((range_start), (range_end))))
#define EXT_RANGE_ID_ARB_H(range_start, range_end) \
((u16)(RANGE_ID_ARB((range_start), (range_end)) >> 16) & 0x1FFF)
#define EXT_FIXED_ID_MSK_L(id) ((u16)(FIXED_ID_MSK(id)))
#define EXT_FIXED_ID_MSK_H(id) ((u16)(FIXED_ID_MSK(id) >> 16 ) & 0x1FFF)
#define EXT_FIXED_ID_ARB_L(id) ((u16)(FIXED_ID_ARB(id)))
#define EXT_FIXED_ID_ARB_H(id) ((u16)(FIXED_ID_ARB(id) >> 16) & 0x1FFF)
/* macro to format the timing register value from the timing parameters*/
#define CAN_TIMING(tseg1, tseg2, sjw, brp) ((((tseg2-1) & 0x07) << 12) | (((tseg1-1) & 0x0F) << 8) | (((sjw-1) & 0x03) << 6) | ((brp-1) & 0x3F))
/* Private variables ---------------------------------------------------------*/
/* array of pre-defined timing parameters for standard bitrates*/
u16 CanTimings[] = { /* value bitrate NTQ TSEG1 TSEG2 SJW BRP */
CAN_TIMING(11, 4, 4, 5), /* 0x3AC4 100 kbit/s 16 11 4 4 5 */
CAN_TIMING(11, 4, 4, 4), /* 0x3AC3 125 kbit/s 16 11 4 4 4 */
CAN_TIMING( 4, 3, 3, 4), /* 0x2383 250 kbit/s 8 4 3 3 4 */
CAN_TIMING(13, 2, 1, 1), /* 0x1C00 500 kbit/s 16 13 2 1 1 */
CAN_TIMING( 4, 3, 1, 1), /* 0x2300 1 Mbit/s 8 4 3 1 1 */
};
/* Private function prototypes -----------------------------------------------*/
static u32 GetFreeIF(void);
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : CAN_DeInit
* Description : Deinitializes the CAN peripheral registers to their default
* reset values.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void CAN_DeInit (void)
{
/* Reset the CAN registers values*/
SCU_APBPeriphReset(__CAN,ENABLE); /*CAN peripheral is under Reset */
SCU_APBPeriphReset(__CAN,DISABLE); /*CAN peripheral Reset off*/
}
/*******************************************************************************
* Function Name : CAN_Init
* Description : Initializes the CAN peripheral according to the specified
* parameters in the CAN_InitStruct.
* Input : CAN_InitStruct: pointer to a CAN_InitTypeDef structure that
* contains the configuration information for the CAN peripheral.
* Output : None
* Return : None
*******************************************************************************/
void CAN_Init(CAN_InitTypeDef* CAN_InitStruct)
{
CAN_EnterInitMode(CAN_CR_CCE | CAN_InitStruct->CAN_ConfigParameters);
CAN_SetBitrate(CAN_InitStruct->CAN_Bitrate);
CAN_LeaveInitMode();
CAN_LeaveTestMode();
}
/*******************************************************************************
* Function Name : CAN_StructInit
* Description : Fills each CAN_InitStruct member with its reset value.
* Input : CAN_InitStruct : pointer to a CAN_InitTypeDef structure which
* will be initialized.
* Output : None
* Return : None.
*******************************************************************************/
void CAN_StructInit(CAN_InitTypeDef* CAN_InitStruct)
{
/* Reset CAN init structure parameters values */
CAN_InitStruct->CAN_ConfigParameters = 0x0;
CAN_InitStruct->CAN_Bitrate = 0x2301;
}
/*******************************************************************************
* Function Name : CAN_SetBitrate
* Description : Setups a standard CAN bitrate.
* Input : bitrate: specifies the bit rate.
* Output : None
* Return : None
*******************************************************************************/
void CAN_SetBitrate(u32 bitrate)
{
CAN->BTR = CanTimings[bitrate]; /* write the predefined timing value */
CAN->BRPR = 0; /* clear the Extended Baud Rate Prescaler */
}
/*******************************************************************************
* Function Name : CAN_SetTiming
* Description : Setups the CAN timing with specific parameters
* Input : - tseg1: specifies Time Segment before the sample point.
* This parameter must be a number between 1 and 16.
* - tseg2: Time Segment after the sample point. This parameter
* must be a number between 1 and 8.
* - sjw: Synchronisation Jump Width. This parameter must be
* a number between 1 and 4.
* - brp: Baud Rate Prescaler. This parameter must be a number
* between 1 and 1024.
* Output : None
* Return : None
*******************************************************************************/
void CAN_SetTiming(u32 tseg1, u32 tseg2, u32 sjw, u32 brp)
{
CAN->BTR = CAN_TIMING(tseg1, tseg2, sjw, brp);
CAN->BRPR = ((brp-1) >> 6) & 0x0F;
}
/*******************************************************************************
* Function Name : GetFreeIF
* Description : Searchs the first free message interface, starting from 0.
* Input : None
* Output : None
* Return : A free message interface number (0 or 1) if found, else 2
*******************************************************************************/
static u32 GetFreeIF(void)
{
if ((CAN->sMsgObj[0].CRR & CAN_CRR_BUSY) == 0)
return 0;
else if ((CAN->sMsgObj[1].CRR & CAN_CRR_BUSY) == 0)
return 1;
else
return 2;
}
/*******************************************************************************
* Function Name : CAN_SetUnusedMsgObj
* Description : Configures the message object as unused
* Input : msgobj: specifies the Message object number, from 0 to 31.
* Output : None
* Return : An ErrorStatus enumuration value:
* - SUCCESS: Interface to treat the message
* - ERROR: No interface to treat the message
*******************************************************************************/
ErrorStatus CAN_SetUnusedMsgObj(u32 msgobj)
{
u32 msg_if=0;
if ((msg_if = GetFreeIF()) == 2)
{
return ERROR;
}
CAN->sMsgObj[msg_if].CMR = CAN_CMR_WRRD
| CAN_CMR_MASK
| CAN_CMR_ARB
| CAN_CMR_CONTROL
| CAN_CMR_DATAA
| CAN_CMR_DATAB;
CAN->sMsgObj[msg_if].M1R = 0;
CAN->sMsgObj[msg_if].M2R = 0;
CAN->sMsgObj[msg_if].A1R = 0;
CAN->sMsgObj[msg_if].A2R = 0;
CAN->sMsgObj[msg_if].MCR = 0;
CAN->sMsgObj[msg_if].DA1R = 0;
CAN->sMsgObj[msg_if].DA2R = 0;
CAN->sMsgObj[msg_if].DB1R = 0;
CAN->sMsgObj[msg_if].DB2R = 0;
CAN->sMsgObj[msg_if].CRR = 1 + msgobj;
return SUCCESS;
}
/*******************************************************************************
* Function Name : CAN_SetTxMsgObj
* Description : Configures the message object as TX.
* Input : - msgobj: specifies the Message object number, from 0 to 31.
* - idType: specifies the identifier type of the frames that
* will be transmitted using this message object.
* This parameter can be one of the following values:
* - CAN_STD_ID (standard ID, 11-bit)
* - CAN_EXT_ID (extended ID, 29-bit)
* - RemoteEN : specifies if the CAN message will answer remote
* frames with exactly matching ID; It can be
* - ENABLE : remote frame with matching ID is answered
* - DISABLE : remote frames with matching ID is not
* answered
* Output : None
* Return : An ErrorStatus enumuration value:
* - SUCCESS: Interface to treat the message
* - ERROR: No interface to treat the message
*******************************************************************************/
ErrorStatus CAN_SetTxMsgObj(u32 msgobj, u32 idType, FunctionalState RemoteEN)
{
u32 msg_if=0;
if ((msg_if = GetFreeIF()) == 2)
{
return ERROR;
}
CAN->sMsgObj[msg_if].CMR = CAN_CMR_WRRD
| CAN_CMR_MASK
| CAN_CMR_ARB
| CAN_CMR_CONTROL
| CAN_CMR_DATAA
| CAN_CMR_DATAB;
CAN->sMsgObj[msg_if].M1R = 0xFFFF;
CAN->sMsgObj[msg_if].A1R = 0;
if (idType == CAN_STD_ID)
{
CAN->sMsgObj[msg_if].M2R = CAN_M2R_MDIR | 0x1FFF;
CAN->sMsgObj[msg_if].A2R = CAN_A2R_MSGVAL | CAN_A2R_DIR;
}
else
{
CAN->sMsgObj[msg_if].M2R = CAN_M2R_MDIR | CAN_M2R_MXTD | 0x1FFF;
CAN->sMsgObj[msg_if].A2R = CAN_A2R_MSGVAL | CAN_A2R_DIR | CAN_A2R_XTD;
}
CAN->sMsgObj[msg_if].MCR = CAN_MCR_TXIE | CAN_MCR_EOB | ( RemoteEN ? CAN_MCR_RMTEN : 0)
| ( RemoteEN ? CAN_MCR_UMASK : 0);
CAN->sMsgObj[msg_if].DA1R = 0;
CAN->sMsgObj[msg_if].DA2R = 0;
CAN->sMsgObj[msg_if].DB1R = 0;
CAN->sMsgObj[msg_if].DB2R = 0;
CAN->sMsgObj[msg_if].CRR = 1 + msgobj;
return SUCCESS;
}
/*******************************************************************************
* Function Name : CAN_SetRxMsgObj
* Description : Configures the message object as RX.
* Input : - msgobj: specifies the Message object number, from 0 to 31.
* - idType: specifies the identifier type of the frames that
* will be transmitted using this message object.
* This parameter can be one of the following values:
* - CAN_STD_ID (standard ID, 11-bit)
* - CAN_EXT_ID (extended ID, 29-bit)
* - idLow: specifies the low part of the identifier range used
* for acceptance filtering.
* - idHigh: specifies the high part of the identifier range
* used for acceptance filtering.
* - singleOrFifoLast: specifies the end-of-buffer indicator.
* This parameter can be one of the following values:
* - TRUE: for a single receive object or a FIFO receive
* object that is the last one of the FIFO.
* - FALSE: for a FIFO receive object that is not the
* last one.
* Output : None
* Return : An ErrorStatus enumuration value:
* - SUCCESS: Interface to treat the message
* - ERROR: No interface to treat the message
*******************************************************************************/
ErrorStatus CAN_SetRxMsgObj(u32 msgobj, u32 idType, u32 idLow, u32 idHigh, bool singleOrFifoLast)
{
u32 msg_if=0;
if ((msg_if = GetFreeIF()) == 2)
{
return ERROR;
}
CAN->sMsgObj[msg_if].CMR = CAN_CMR_WRRD
| CAN_CMR_MASK
| CAN_CMR_ARB
| CAN_CMR_CONTROL
| CAN_CMR_DATAA
| CAN_CMR_DATAB;
if (idType == CAN_STD_ID)
{
CAN->sMsgObj[msg_if].M1R = 0xFFFF;
CAN->sMsgObj[msg_if].M2R = CAN_M2R_MXTD | STD_RANGE_ID_MSK(idLow, idHigh);
CAN->sMsgObj[msg_if].A1R = 0;
CAN->sMsgObj[msg_if].A2R = CAN_A2R_MSGVAL | STD_RANGE_ID_ARB(idLow, idHigh);
}
else
{
CAN->sMsgObj[msg_if].M1R = EXT_RANGE_ID_MSK_L(idLow, idHigh);
CAN->sMsgObj[msg_if].M2R = CAN_M2R_MXTD | EXT_RANGE_ID_MSK_H(idLow, idHigh);
CAN->sMsgObj[msg_if].A1R = EXT_RANGE_ID_ARB_L(idLow, idHigh);
CAN->sMsgObj[msg_if].A2R = CAN_A2R_MSGVAL | CAN_A2R_XTD | EXT_RANGE_ID_ARB_H(idLow, idHigh);
}
CAN->sMsgObj[msg_if].MCR = CAN_MCR_RXIE | CAN_MCR_UMASK | (singleOrFifoLast ? CAN_MCR_EOB : 0);
CAN->sMsgObj[msg_if].DA1R = 0;
CAN->sMsgObj[msg_if].DA2R = 0;
CAN->sMsgObj[msg_if].DB1R = 0;
CAN->sMsgObj[msg_if].DB2R = 0;
CAN->sMsgObj[msg_if].CRR = 1 + msgobj;
return SUCCESS;
}
/*******************************************************************************
* Function Name : CAN_SetUnusedAllMsgObj
* Description : Configures all the message objects as unused.
* Input : None
* Output : None
* Return : An ErrorStatus enumuration value:
* - SUCCESS: Interface to treat the message
* - ERROR: No interface to treat the messageNone
*******************************************************************************/
ErrorStatus CAN_SetUnusedAllMsgObj(void)
{
u32 i=0;
for (i = 0; i < 32; i++)
{
if ( CAN_SetUnusedMsgObj(i) == ERROR)
return ERROR;
}
return SUCCESS;
}
/*******************************************************************************
* Function Name : CAN_ReleaseMessage
* Description : Releases the message object
* Input : - msgobj: specifies the Message object number, from 0 to 31.
* Output : None
* Return : An ErrorStatus enumuration value:
* - SUCCESS: Interface to treat the message
* - ERROR: No interface to treat the message
*******************************************************************************/
ErrorStatus CAN_ReleaseMessage(u32 msgobj)
{
u32 msg_if=0;
if ((msg_if = GetFreeIF()) == 2)
{
return ERROR;
}
CAN->sMsgObj[msg_if].CMR = CAN_CMR_CLRINTPND | CAN_CMR_TXRQSTNEWDAT;
CAN->sMsgObj[msg_if].CRR = 1 + msgobj;
return SUCCESS;
}
/*******************************************************************************
* Function Name : CAN_UpdateMsgObj
* Description : Updates the CAN message object with the pCanMsg fields, it
* does not start the transmission of the CAN message object
* Input 1 : message object number, from 0 to 31
* Input 2 : pointer to the message structure containing data to transmit
* Output : None
* Return : An ErrorStatus enumuration value:
* - SUCCESS: Interface to treat the message
* - ERROR: No interface to treat the message
*******************************************************************************/
ErrorStatus CAN_UpdateMsgObj(u32 msgobj, canmsg* pCanMsg)
{
if (CAN->sMsgObj[0].CRR & CAN_CRR_BUSY)
return ERROR;
/* read the Arbitration and Message Control */
CAN->sMsgObj[0].CMR = CAN_CMR_ARB | CAN_CMR_CONTROL;
CAN->sMsgObj[0].CRR = 1 + msgobj;
while (CAN->sMsgObj[0].CRR & CAN_CRR_BUSY)
{
/*Wait*/
}
/* update the contents needed for transmission */
CAN->sMsgObj[0].CMR = CAN_CMR_WRRD
| CAN_CMR_ARB
| CAN_CMR_CONTROL
| CAN_CMR_DATAA
| CAN_CMR_DATAB;
if ((CAN->sMsgObj[0].A2R & CAN_A2R_XTD) == 0)
{
/* standard ID */
CAN->sMsgObj[0].A1R = 0;
CAN->sMsgObj[0].A2R = (CAN->sMsgObj[0].A2R & 0xE000)
| STD_FIXED_ID_ARB(pCanMsg->Id);
}
else
{
/* extended ID*/
CAN->sMsgObj[0].A1R = EXT_FIXED_ID_ARB_L(pCanMsg->Id);
CAN->sMsgObj[0].A2R = (CAN->sMsgObj[0].A2R & 0xE000)
| EXT_FIXED_ID_ARB_H(pCanMsg->Id);
}
CAN->sMsgObj[0].MCR = (CAN->sMsgObj[0].MCR & 0xFEF0) | CAN_MCR_NEWDAT
| pCanMsg->Dlc;
CAN->sMsgObj[0].DA1R = ((u16)pCanMsg->Data[1] << 8) | pCanMsg->Data[0];
CAN->sMsgObj[0].DA2R = ((u16)pCanMsg->Data[3] << 8) | pCanMsg->Data[2];
CAN->sMsgObj[0].DB1R = ((u16)pCanMsg->Data[5] << 8) | pCanMsg->Data[4];
CAN->sMsgObj[0].DB2R = ((u16)pCanMsg->Data[7] << 8) | pCanMsg->Data[6];
CAN->sMsgObj[0].CRR = 1 + msgobj;
while ( CAN->sMsgObj[0].CRR & CAN_CRR_BUSY)
{
/* wait */
}
return SUCCESS;
}
/*******************************************************************************
* Function Name : CAN_SendMessage
* Description : Start transmission of a message
* Input : - msgobj: specifies the Message object number, from 0 to 31.
* : - pCanMsg: pointer to the message structure containing data
* to transmit.
* Output : None
* Return : An ErrorStatus enumuration value:
* - SUCCESS: Transmission OK
* - ERROR: No transmission
*******************************************************************************/
ErrorStatus CAN_SendMessage(u32 msgobj, canmsg* pCanMsg)
{
if (CAN_UpdateMsgObj(msgobj, pCanMsg) == ERROR)
return ERROR;
CAN->SR &= ~CAN_SR_TXOK;
return ( CAN_TransmitRequest( msgobj));
}
/*******************************************************************************
* Function Name : CAN_TransmitRequest
* Description : This function requests the transmission of a message object
* Input : msgobj: number of the message object that should be
* transmitted
* Output : None
* Return : An ErrorStatus enumuration value:
* - SUCCESS: Transmission OK
* - ERROR: No transmission started
*******************************************************************************/
ErrorStatus CAN_TransmitRequest( u32 msgobj )
{
u16 msg_if;
if ((msg_if = GetFreeIF()) == 2)
return ERROR;
/* Set the transmit request in the command mask register */
CAN->sMsgObj[msg_if].CMR = CAN_CMR_WRRD | CAN_CMR_TXRQSTNEWDAT;
/* Write the message object number in the command request register */
CAN->sMsgObj[msg_if].CRR = 1 + msgobj;
return SUCCESS;
}
/*******************************************************************************
* Function Name : CAN_ReceiveMessage
* Description : Gets the message, if received.
* Input : - msgobj: specifies the Message object number, from 0 to 31.
* - release: specifies the message release indicator.
* This parameter can be one of the following values:
* - TRUE: the message object is released when getting
* the data.
* - FALSE: the message object is not released.
* - pCanMsg: pointer to the message structure where received
* data is copied.
* Output : None
* Return : An ErrorStatus enumuration value:
* - SUCCESS: Reception OK
* - ERROR: No message pending
*******************************************************************************/
ErrorStatus CAN_ReceiveMessage(u32 msgobj, bool release, canmsg* pCanMsg)
{
u32 tempId;
if (!CAN_GetMsgReceiveStatus(msgobj))
{
return ERROR;
}
CAN->SR &= ~CAN_SR_RXOK;
/* read the message contents*/
CAN->sMsgObj[1].CMR = CAN_CMR_MASK
| CAN_CMR_ARB
| CAN_CMR_CONTROL
| CAN_CMR_CLRINTPND
| (release ? CAN_CMR_TXRQSTNEWDAT : 0)
| CAN_CMR_DATAA
| CAN_CMR_DATAB;
CAN->sMsgObj[1].CRR = 1 + msgobj;
if (CAN->sMsgObj[1].CRR & CAN_CRR_BUSY)
{
return ERROR;
}
if ((CAN->sMsgObj[1].A2R & CAN_A2R_XTD) == 0)
{
/* standard ID*/
pCanMsg->IdType = CAN_STD_ID;
pCanMsg->Id = (CAN->sMsgObj[1].A2R >> 2) & 0x07FF;
}
else
{
/* extended ID*/
pCanMsg->IdType = CAN_EXT_ID;
tempId = ((u32)(CAN->sMsgObj[1].A2R & 0x1FFF) << 16);
pCanMsg->Id = CAN->sMsgObj[1].A1R | tempId;
}
pCanMsg->Dlc = CAN->sMsgObj[1].MCR & 0x0F;
pCanMsg->Data[0] = (u8) CAN->sMsgObj[1].DA1R;
pCanMsg->Data[1] = (u8)(CAN->sMsgObj[1].DA1R >> 8);
pCanMsg->Data[2] = (u8) CAN->sMsgObj[1].DA2R;
pCanMsg->Data[3] = (u8)(CAN->sMsgObj[1].DA2R >> 8);
pCanMsg->Data[4] = (u8) CAN->sMsgObj[1].DB1R;
pCanMsg->Data[5] = (u8)(CAN->sMsgObj[1].DB1R >> 8);
pCanMsg->Data[6] = (u8) CAN->sMsgObj[1].DB2R;
pCanMsg->Data[7] = (u8)(CAN->sMsgObj[1].DB2R >> 8);
return SUCCESS;
}
/*******************************************************************************
* Function Name : CAN_WaitEndOfTx
* Description : Waits until current transmission is finished.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void CAN_WaitEndOfTx(void)
{
while ((CAN->SR & CAN_SR_TXOK) == 0)
{
/*Wait*/
}
CAN->SR &= ~CAN_SR_TXOK;
}
/*******************************************************************************
* Function Name : CAN_BasicSendMessage
* Description : Starts transmission of a message in BASIC mode. This mode
* does not use the message RAM.
* Input : pCanMsg: Pointer to the message structure containing data to
* transmit.
* Output : None
* Return : An ErrorStatus enumuration value:
* - SUCCESS: Transmission OK
* - ERROR: No transmission
*******************************************************************************/
ErrorStatus CAN_BasicSendMessage(canmsg* pCanMsg)
{
/* clear NewDat bit in IF2 to detect next reception*/
CAN->sMsgObj[1].MCR &= ~CAN_MCR_NEWDAT;
CAN->SR &= ~CAN_SR_TXOK;
CAN->sMsgObj[0].CMR = CAN_CMR_WRRD
| CAN_CMR_ARB
| CAN_CMR_CONTROL
| CAN_CMR_DATAA
| CAN_CMR_DATAB;
if (pCanMsg->IdType == CAN_STD_ID)
{
/* standard ID*/
CAN->sMsgObj[0].A1R = 0;
CAN->sMsgObj[0].A2R = (CAN->sMsgObj[0].A2R & 0xE000) | STD_FIXED_ID_ARB(pCanMsg->Id);
}
else
{
/* extended ID */
CAN->sMsgObj[0].A1R = EXT_FIXED_ID_ARB_L(pCanMsg->Id);
CAN->sMsgObj[0].A2R = (CAN->sMsgObj[0].A2R & 0xE000) | CAN_A2R_XTD | EXT_FIXED_ID_ARB_H(pCanMsg->Id);
}
CAN->sMsgObj[0].MCR = (CAN->sMsgObj[0].MCR & 0xFCF0) | pCanMsg->Dlc;
CAN->sMsgObj[0].DA1R = ((u16)pCanMsg->Data[1]<<8) | pCanMsg->Data[0];
CAN->sMsgObj[0].DA2R = ((u16)pCanMsg->Data[3]<<8) | pCanMsg->Data[2];
CAN->sMsgObj[0].DB1R = ((u16)pCanMsg->Data[5]<<8) | pCanMsg->Data[4];
CAN->sMsgObj[0].DB2R = ((u16)pCanMsg->Data[7]<<8) | pCanMsg->Data[6];
/* request the transmission*/
CAN->sMsgObj[0].CRR = CAN_CRR_BUSY;
return SUCCESS;
}
/*******************************************************************************
* Function Name : CAN_BasicReceiveMessage
* Description : Gets the message in BASIC mode, if received. This mode does
* not use the message RAM.
* Input : pCanMsg: pointer to the message structure where message is copied.
* Output : None
* Return : An ErrorStatus enumuration value:
* - SUCCESS: Reception OK
* - ERROR: No message pending
*******************************************************************************/
ErrorStatus CAN_BasicReceiveMessage(canmsg* pCanMsg)
{
u32 tmpId;
if ((CAN->sMsgObj[1].MCR & CAN_MCR_NEWDAT) == 0)
{
return ERROR;
}
CAN->SR &= ~CAN_SR_RXOK;
CAN->sMsgObj[1].CMR = CAN_CMR_ARB
| CAN_CMR_CONTROL
| CAN_CMR_DATAA
| CAN_CMR_DATAB;
if ((CAN->sMsgObj[1].A2R & CAN_A2R_XTD) == 0)
{
/* standard ID*/
pCanMsg->IdType = CAN_STD_ID;
pCanMsg->Id = (CAN->sMsgObj[1].A2R >> 2) & 0x07FF;
}
else
{
/* extended ID*/
pCanMsg->IdType = CAN_EXT_ID;
tmpId = ((u32)(CAN->sMsgObj[1].A2R & 0x1FFF) << 16);
pCanMsg->Id = CAN->sMsgObj[1].A1R | tmpId;
}
pCanMsg->Dlc = CAN->sMsgObj[1].MCR & 0x0F;
pCanMsg->Data[0] = (u8) CAN->sMsgObj[1].DA1R;
pCanMsg->Data[1] = (u8)(CAN->sMsgObj[1].DA1R >> 8);
pCanMsg->Data[2] = (u8) CAN->sMsgObj[1].DA2R;
pCanMsg->Data[3] = (u8)(CAN->sMsgObj[1].DA2R >> 8);
pCanMsg->Data[4] = (u8) CAN->sMsgObj[1].DB1R;
pCanMsg->Data[5] = (u8)(CAN->sMsgObj[1].DB1R >> 8);
pCanMsg->Data[6] = (u8) CAN->sMsgObj[1].DB2R;
pCanMsg->Data[7] = (u8)(CAN->sMsgObj[1].DB2R >> 8);
return SUCCESS;
}
/*******************************************************************************
* Function Name : CAN_EnterInitMode
* Description : Switchs the CAN into initialization mode. This function must
* be used in conjunction with CAN_LeaveInitMode().
* Input : InitMask: specifies the CAN configuration in normal mode.
* Output : None
* Return : None
*******************************************************************************/
void CAN_EnterInitMode(u8 InitMask)
{
CAN->CR = InitMask | CAN_CR_INIT;
CAN->SR = 0; /* reset the status*/
}
/*******************************************************************************
* Function Name : CAN_LeaveInitMode
* Description : Leaves the initialization mode (switch into normal mode).
* This function must be used in conjunction with CAN_EnterInitMode().
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void CAN_LeaveInitMode(void)
{
CAN->CR &= ~(CAN_CR_INIT | CAN_CR_CCE);
}
/*******************************************************************************
* Function Name : CAN_EnterTestMode
* Description : Switchs the CAN into test mode. This function must be used in
* conjunction with CAN_LeaveTestMode().
* Input : TestMask: specifies the configuration in test modes.
* Output : None
* Return : None
*******************************************************************************/
void CAN_EnterTestMode(u8 TestMask)
{
CAN->CR |= CAN_CR_TEST;
CAN->TESTR |= TestMask;
}
/*******************************************************************************
* Function Name : CAN_LeaveTestMode
* Description : Leaves the current test mode (switch into normal mode).
* This function must be used in conjunction with CAN_EnterTestMode().
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void CAN_LeaveTestMode(void)
{
CAN->CR |= CAN_CR_TEST;
CAN->TESTR &= ~(CAN_TESTR_LBACK | CAN_TESTR_SILENT | CAN_TESTR_BASIC);
CAN->CR &= ~CAN_CR_TEST;
}
/*******************************************************************************
* Function Name : CAN_ReleaseTxMessage
* Description : Releases the transmit message object.
* Input : - msgobj: specifies the Message object number, from 0 to 31.
* Output : None
* Return : None
*******************************************************************************/
void CAN_ReleaseTxMessage(u32 msgobj)
{
CAN->sMsgObj[0].CMR = CAN_CMR_CLRINTPND | CAN_CMR_TXRQSTNEWDAT;
CAN->sMsgObj[0].CRR = 1 + msgobj;
}
/*******************************************************************************
* Function Name : CAN_ReleaseRxMessage
* Description : Releases the receive message object.
* Input : - msgobj: specifies the Message object number, from 0 to 31.
* Output : None
* Return : None
*******************************************************************************/
void CAN_ReleaseRxMessage(u32 msgobj)
{
CAN->sMsgObj[1].CMR = CAN_CMR_CLRINTPND | CAN_CMR_TXRQSTNEWDAT;
CAN->sMsgObj[1].CRR = 1 + msgobj;
}
/*******************************************************************************
* Function Name : CAN_GetMsgReceiveStatus
* Description : Test the waiting status of a received message
* Input 1 : message object number, from 0 to 31
* Output : None
* Return : SET value if the corresponding message object has
* received a message waiting to be copied, else RESET
*******************************************************************************/
FlagStatus CAN_GetMsgReceiveStatus(u32 msgobj)
{
if( msgobj < 16 )
{
if ( CAN->ND1R & (1 << msgobj) )
return SET;
else
return RESET;
}
else
{
if ( CAN->ND2R & (1 << (msgobj - 16) ) )
return SET;
else
return RESET;
}
}
/*******************************************************************************
* Function Name : CAN_GetMsgTransmitRequestStatus
* Description : Test the request status of a transmitted message
* Input 1 : message object number, from 0 to 31
* Output : None
* Return : SET if the corresponding message is requested
* to transmit, else RESET
*******************************************************************************/
FlagStatus CAN_GetMsgTransmitRequestStatus(u32 msgobj)
{
if( msgobj < 16 )
{
if ( CAN->TXR1R & (1 << msgobj) )
return SET;
else
return RESET;
}
else
{
if ( CAN->TXR2R & (1 << (msgobj - 16) ) )
return SET;
else
return RESET;
}
}
/*******************************************************************************
* Function Name : CAN_GetMsgInterruptStatus
* Description : Test the interrupt status of a message object
* Input 1 : message object number, from 0 to 31
* Output : None
* Return : SET if the corresponding message has an
* interrupt pending, else RESET
*******************************************************************************/
FlagStatus CAN_GetMsgInterruptStatus(u32 msgobj)
{
if( msgobj < 16 )
{
if ( CAN->IP1R & (1 << msgobj) )
return SET;
else
return RESET;
}
else
{
if ( CAN->IP2R & (1 << (msgobj - 16) ) )
return SET;
else
return RESET;
}
}
/*******************************************************************************
* Function Name : CAN_GetMsgValidStatus
* Description : Test the validity of a message object (ready to use)
* Input 1 : message object number, from 0 to 31
* Output : None
* Return : SET if the corresponding message object is valid
* else RESET
*******************************************************************************/
FlagStatus CAN_GetMsgValidStatus(u32 msgobj)
{
if( msgobj < 16 )
{
if ( CAN->MV1R & (1 << msgobj) )
return SET;
else
return RESET;
}
else
{
if ( CAN->MV2R & (1 << (msgobj - 16) ) )
return SET;
else
return RESET;
}
}
/*******************************************************************************
* Function Name : CAN_GetFlagStatus
* Description : Returns the flasg status of the flag passed in parameter
* Input : One of the following parameters:
* - CAN_SR_TXOK
* - CAN_SR_RXOK
* - CAN_SR_EPASS
* - CAN_SR_EWARN
* - CAN_SR_BOFF
* Output : None
* Return : 1 if the flag is set else 0
*******************************************************************************/
FlagStatus CAN_GetFlagStatus ( u32 CAN_Flag )
{
if( CAN->SR & CAN_Flag)
{
return SET;
}
else
return RESET;
}
/*******************************************************************************
* Function Name : CAN_GetTransmitErrorCounter
* Description : Reads the CAN cell transmit error counter
* Input : None
* Output : None
* Return : Transmit Error Counter value between 0..255
*******************************************************************************/
u32 CAN_GetTransmitErrorCounter ( void )
{
return( CAN->ERR & 0x00FF );
}
/*******************************************************************************
* Function Name : CAN_GetReceiveErrorCounter
* Description : Reads the CAN cell receive error counter
* Input : None
* Output : None
* Return : Receive Error Counter value between 0..127
*******************************************************************************/
u32 CAN_GetReceiveErrorCounter ( void )
{
return ( ( CAN->ERR & 0x7F00 ) >> 8);
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_dma.c
0,0 → 1,1194
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_dma.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the DMA firmware functions
* needed to access all DMA registers.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
# include"91x_dma.h"
# include"91x_scu.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* DMA Masks "used" only in this module */
#define DMA_Width_DES_MASK 0xFF1FFFFF
#define DMA_Width_SRC_MASK 0xFFE3FFFF
#define DMA_Bst_DES_MASK 0xFFFC7FFF
#define DMA_Bst_SRC_MASK 0xFFFF8FFF
#define DMA_FlowCntrl_Mask 0xFFFFC7FF
#define DMA_TrsfSisze_Mask 0xFFFFF000
#define SRC_Mask 0xFFFFFFE1
#define DES_Mask 0xFFFFFC3F
#define DMA_TCIE 0x80000000
#define DMA_ChannelDESInc 0x08000000
#define DMA_ChannelSRCInc 0x04000000
#define DMA_BufferChannel 0x20000000
#define DMA_HaltChannel 0x00040000
#define DMA_LockChannel 0x00010000
#define DMA_CacheChannel 0x40000000
#define DMA_ChannelActive 0x00020000
#define DMA_Enable 0x00000001
#define DMA_ChannelEnable 0x00000001
/*LLI Masks used for linked list's control word stucture*/
#define DMA_SrcIncrement_MASK 0xFBFFFFFF
#define DMA_DesIncrement_MASK 0xF7FFFFFF
#define DMA_CacheableAccess_MASK 0xEFFFFFFF
#define DMA_BufferableAccess_MASK 0xDFFFFFFF
#define DMA_PrivilegedAccess_MASK 0xBFFFFFFF
#define DMA_TCInterrupt_MASK 0x7FFFFFFF
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : DMA_ITMaskConfig
* Description : Enables or disables the specified DMA_Channelx Mask interrupt.
* Input :
* -DMA_Channelx: where x can be 0,1,2,3,4,5,6,or 7 to select the DMA Channel.
* -DMA_ITMask: specifies the DMA interrupt mask source to be enabled or disabled.
* This parameter can be:
* - DMA_ITMask_IE (Interrupt error mask).
* - DMA_ITMask_ITC (Terminal count interrupt mask).
* - DMA_ITMask_ALL ( All interrupts mask)
*
* -NewState: new state of the specified DMA_Channelx mask interrupt.
* This parameter can be: ENABLE or DISABLE.
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_ITMaskConfig(DMA_Channel_TypeDef * DMA_Channelx, u16 DMA_ITMask , FunctionalState NewState)
{
if (NewState==ENABLE) /* Mask the Interrupt */
{
DMA_Channelx-> CCNF |= DMA_ITMask ;
}
else /* Disable the Interrupt Mask*/
{
DMA_Channelx-> CCNF &= ~ DMA_ITMask ;
}
}
/*******************************************************************************
* Function Name : DMA_ITConfig
* Description : Enables or disables the DMA_Channelx Terminal Count interrupt.
* Input :
* -DMA_Channelx: where x can be 0,1,2,3,4,5,6,or 7 to select the DMA Channel.
* -NewState: new state of the specified DMA_Channelx mask interrupt.
* This parameter can be: ENABLE or DISABLE.
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_ITConfig(DMA_Channel_TypeDef * DMA_Channelx, FunctionalState NewState)
{
if (NewState==ENABLE) /* Enable the Terminal Count Interrupt */
{
DMA_Channelx->CC |= DMA_TCIE ;
}
else /* Disable the Terminal Count Interrupt */
{
DMA_Channelx-> CC &= ~ DMA_TCIE ;
}
}
/********************************************************************************
* Function Name : DMA_SyncConfig
* Description : Enables or disables synchronization logic for the corresponding DMA Request Signal.
* Input :
* -SRCReq:specifies the DMA Request Source.
* This parameter can be:
* -DMA_USB_RX_Mask
* -DMA_USB_TX_Mask
* -DMA_TIM0_Mask
* -DMA_TIM1_Mask
* -DMA_UART0_RX_Mask
* -DMA_UART0_TX_Mask
* -DMA_UART1_RX_Mask
* -DMA_UART1_TX_Mask
* -DMA_External_Req0_Mask
* -DMA_External_Req1_Mask
* -DMA_I2C0_Mask
* -DMA_I2C1_Mask
* -DMA_SSP0_RX_Mask
* -DMA_SSP0_TX_Mask
* -DMA_SSP1_RX_Mask
* -DMA_SSP1_TX_Mask
*
* -NewState: new state of the specified DMA_Channelx mask interrupt.
* This parameter can be: ENABLE or DISABLE.
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_SyncConfig(u16 SRCReq, FunctionalState NewState)
{
if (NewState==ENABLE) /* Enable the synchronization logic for the corresponding DMA Request Signal */
{
DMA->SYNR &= ~ SRCReq ;
}
else /* Disable the synchronization logic for the corresponding DMA Request Signal. */
{
DMA->SYNR |= SRCReq ;
}
}
/********************************************************************************
* Function Name : DMA_SetSReq
* Description : Set the DMA to generate a Single transfer request for the corresponding DMA Request Source.
* Input :
* -SRCReq:specifies the DMA Request Source.
* This parameter can be:
* -DMA_USB_RX_Mask
* -DMA_USB_TX_Mask
* -DMA_TIM0_Mask
* -DMA_TIM1_Mask
* -DMA_UART0_RX_Mask
* -DMA_UART0_TX_Mask
* -DMA_UART1_RX_Mask
* -DMA_UART1_TX_Mask
* -DMA_External_Req0_Mask
* -DMA_External_Req1_Mask
* -DMA_I2C0_Mask
* -DMA_I2C1_Mask
* -DMA_SSP0_RX_Mask
* -DMA_SSP0_TX_Mask
* -DMA_SSP1_RX_Mask
* -DMA_SSP1_TX_Mask
*
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_SetSReq(u16 SRCReq)
{ /* Set the DMA to generate a Single transfer request for the corresponding DMA Request Source */
DMA->SSRR |= SRCReq ;
}
/********************************************************************************
* Function Name : DMA_SetLSReq
* Description : Set the DMA to generate a Last Single transfer request for the corresponding DMA Request Source.
* Input :
* -SRCReq:specifies the DMA Request Source.
* This parameter can be:
* -DMA_USB_RX_Mask
* -DMA_USB_TX_Mask
* -DMA_TIM0_Mask
* -DMA_TIM1_Mask
* -DMA_UART0_RX_Mask
* -DMA_UART0_TX_Mask
* -DMA_UART1_RX_Mask
* -DMA_UART1_TX_Mask
* -DMA_External_Req0_Mask
* -DMA_External_Req1_Mask
* -DMA_I2C0_Mask
* -DMA_I2C1_Mask
* -DMA_SSP0_RX_Mask
* -DMA_SSP0_TX_Mask
* -DMA_SSP1_RX_Mask
* -DMA_SSP1_TX_Mask
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_SetLSReq(u16 SRCReq )
{ /* Set the DMA to generate a Last Single transfer request for the corresponding DMA Request Source */
DMA->SLSRR |= SRCReq ;
}
/********************************************************************************
* Function Name : DMA_SetBReq
* Description : Set the DMA to generate a Burst transfer request for the corresponding DMA Request Source.
* Input :
* -SRCReq:specifies the DMA Request Source.
* This parameter can be:
* -DMA_USB_RX_Mask
* -DMA_USB_TX_Mask
* -DMA_TIM0_Mask
* -DMA_TIM1_Mask
* -DMA_UART0_RX_Mask
* -DMA_UART0_TX_Mask
* -DMA_UART1_RX_Mask
* -DMA_UART1_TX_Mask
* -DMA_External_Req0_Mask
* -DMA_External_Req1_Mask
* -DMA_I2C0_Mask
* -DMA_I2C1_Mask
* -DMA_SSP0_RX_Mask
* -DMA_SSP0_TX_Mask
* -DMA_SSP1_RX_Mask
* -DMA_SSP1_TX_Mask
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_SetBReq(u16 SRCReq)
{ /* Set the DMA to generate a Burst transfer request for the corresponding DMA Request Source */
DMA->SBRR |= SRCReq ;
}
/********************************************************************************
* Function Name : DMA_SetLBReq
* Description : Set the DMA to generate a Last Burst transfer request for the corresponding DMA Request Source.
* Input :
* -SRCReq:specifies the DMA Request Source.
* This parameter can be:
* -DMA_USB_RX_Mask
* -DMA_USB_TX_Mask
* -DMA_TIM0_Mask
* -DMA_TIM1_Mask
* -DMA_UART0_RX_Mask
* -DMA_UART0_TX_Mask
* -DMA_UART1_RX_Mask
* -DMA_UART1_TX_Mask
* -DMA_External_Req0_Mask
* -DMA_External_Req1_Mask
* -DMA_I2C0_Mask
* -DMA_I2C1_Mask
* -DMA_SSP0_RX_Mask
* -DMA_SSP0_TX_Mask
* -DMA_SSP1_RX_Mask
* -DMA_SSP1_TX_Mask
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_SetLBReq(u16 SRCReq)
{ /* Set the DMA to generate a Last Burst transfer request for the corresponding DMA Request Source */
DMA->SLBRR |= SRCReq ;
}
/********************************************************************************
* Function Name : DMA_GetSReq
* Description : Check for a specific source if it request a Single transfer .
* Input :
* Input :
* -SRCReq:specifies the DMA Request Source.
* This parameter can be:
* -DMA_USB_RX_Mask
* -DMA_USB_TX_Mask
* -DMA_TIM0_Mask
* -DMA_TIM1_Mask
* -DMA_UART0_RX_Mask
* -DMA_UART0_TX_Mask
* -DMA_UART1_RX_Mask
* -DMA_UART1_TX_Mask
* -DMA_External_Req0_Mask
* -DMA_External_Req1_Mask
* -DMA_I2C0_Mask
* -DMA_I2C1_Mask
* -DMA_SSP0_RX_Mask
* -DMA_SSP0_TX_Mask
* -DMA_SSP1_RX_Mask
* -DMA_SSP1_TX_Mask
* Output : None.
* Return : SET or RESET.
*******************************************************************************/
FlagStatus DMA_GetSReq(u16 SRCReq)
{ /* Check for a specific source if it request a Single transfer . */
if ( (DMA->SSRR & SRCReq )!= RESET )
{
return SET;
}
else
{
return RESET;
}
}
/********************************************************************************
* Function Name : DMA_GetLSReq
* Description : Check for a specific source if it request a Last Single transfer .
* Input :
* -SRCReq:specifies the DMA Request Source.
* This parameter can be:
* -DMA_USB_RX_Mask
* -DMA_USB_TX_Mask
* -DMA_TIM0_Mask
* -DMA_TIM1_Mask
* -DMA_UART0_RX_Mask
* -DMA_UART0_TX_Mask
* -DMA_UART1_RX_Mask
* -DMA_UART1_TX_Mask
* -DMA_External_Req0_Mask
* -DMA_External_Req1_Mask
* -DMA_I2C0_Mask
* -DMA_I2C1_Mask
* -DMA_SSP0_RX_Mask
* -DMA_SSP0_TX_Mask
* -DMA_SSP1_RX_Mask
* -DMA_SSP1_TX_Mask
* Output : None.
* Return : SET or RESET.
*******************************************************************************/
FlagStatus DMA_GetLSReq(u16 SRCReq)
{ /* Check for a specific source if it request a Last Single transfer . */
if ( (DMA->SLSRR & SRCReq)!= RESET )
{
return SET;
}
else
{
return RESET;
}
}
/********************************************************************************
* Function Name : DMA_GetBReq
* Description : Check for a specific source if it request a Burst transfer .
* Input :
* -SRCReq:specifies the DMA Request Source.
* This parameter can be:
* -DMA_USB_RX_Mask
* -DMA_USB_TX_Mask
* -DMA_TIM0_Mask
* -DMA_TIM1_Mask
* -DMA_UART0_RX_Mask
* -DMA_UART0_TX_Mask
* -DMA_UART1_RX_Mask
* -DMA_UART1_TX_Mask
* -DMA_External_Req0_Mask
* -DMA_External_Req1_Mask
* -DMA_I2C0_Mask
* -DMA_I2C1_Mask
* -DMA_SSP0_RX_Mask
* -DMA_SSP0_TX_Mask
* -DMA_SSP1_RX_Mask
* -DMA_SSP1_TX_Mask
* Output : None.
* Return : SET or RESET.
*******************************************************************************/
FlagStatus DMA_GetBReq(u16 SRCReq)
{ /* Check for a specific source if it request a Burst transfer . */
if (( DMA->SBRR & SRCReq ) != RESET )
{
return SET;
}
else
{
return RESET;
}
}
/********************************************************************************
* Function Name : DMA_GetLSReq
* Description : Check for a specific source if it request a Last Burst transfer .
* Input :
* Input :
* - SRCReq:specifies the DMA Request Source.
* This parameter can be:
* -DMA_USB_RX_Mask
* -DMA_USB_TX_Mask
* -DMA_TIM0_Mask
* -DMA_TIM1_Mask
* -DMA_UART0_RX_Mask
* -DMA_UART0_TX_Mask
* -DMA_UART1_RX_Mask
* -DMA_UART1_TX_Mask
* -DMA_External_Req0_Mask
* -DMA_External_Req1_Mask
* -DMA_I2C0_Mask
* -DMA_I2C1_Mask
* -DMA_SSP0_RX_Mask
* -DMA_SSP0_TX_Mask
* -DMA_SSP1_RX_Mask
* -DMA_SSP1_TX_Mask
* Output : None.
* Return : SET or RESET.
*******************************************************************************/
FlagStatus DMA_GetLBReq(u16 SRCReq)
{ /* Check for a specific source if it request a Last Burst transfer . */
if ( ( DMA->SLBRR & SRCReq ) != RESET )
{
return SET;
}
else
{
return RESET;
}
}
/*******************************************************************************
* Function Name : DMA_ChannelHalt
* Description : Enables DMA requests or ignore extra source DMA requests for
the specified channel.
* Input :
-DMA_Channelx: where x can be 0,1,2,3,4,5,6,or 7 to select the DMA Channel.
-NewState: new state of the specified DMA_Channelx mask interrupt.
This parameter can be: ENABLE or DISABLE.
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_ChannelHalt(DMA_Channel_TypeDef * DMA_Channelx, FunctionalState NewState)
{
if (NewState==ENABLE) /* Enables DMA requests */
{
DMA_Channelx->CCNF |= DMA_HaltChannel ;
}
else /* Ignore extra source DMA request */
{
DMA_Channelx->CCNF &= ~ DMA_HaltChannel ;
}
}
/*******************************************************************************
* Function Name : DMA_ChannelLockTrsf
* Description : Enables or disables the Locked Transfers Feature for the specified DMA_Channelx
* Input :
* -DMA_Channelx: where x can be 0,1,2,3,4,5,6,or 7 to select the DMA Channel.
* -NewState: new state of the specified DMA_Channelx mask interrupt.
* This parameter can be: ENABLE or DISABLE.
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_ChannelLockTrsf(DMA_Channel_TypeDef * DMA_Channelx, FunctionalState NewState)
{
if (NewState==ENABLE) /* Locked transfers enabled on channel x */
{
DMA_Channelx->CCNF |= DMA_LockChannel ;
}
else /* Locked transfers disabled on channel xt */
{
DMA_Channelx->CCNF &= ~ DMA_LockChannel;
}
}
/*******************************************************************************
* Function Name : DMA_ChannelCache
* Description : Enables or disables the cacheability Feature for the specified DMA_Channelx
* Input :
* -DMA_Channelx: where x can be 0,1,2,3,4,5,6,or 7 to select the DMA Channel.
* -NewState: new state of the specified DMA_Channelx mask interrupt.
* This parameter can be: ENABLE or DISABLE.
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_ChannelCache (DMA_Channel_TypeDef * DMA_Channelx, FunctionalState NewState)
{
if (NewState==ENABLE) /* Cacheability Feature enabled on channelx */
{
DMA_Channelx->CC |= DMA_CacheChannel ;
}
else /* Cacheability Feature disabled on channelx */
{
DMA_Channelx->CC &= ~ DMA_CacheChannel ;
}
}
/*******************************************************************************
* Function Name : DMA_ChannelBuffering
* Description : Enables or disables the Buffering Feature for the specified DMA_Channelx
* Input :
* -DMA_Channelx: where x can be 0,1,2,3,4,5,6,or 7 to select the DMA Channel.
* -NewState: new state of the specified DMA_Channelx mask interrupt.
* This parameter can be: ENABLE or DISABLE.
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_ChannelBuffering (DMA_Channel_TypeDef * DMA_Channelx, FunctionalState NewState)
{
if (NewState==ENABLE) /* Cacheability Feature enabled on channel x */
{
DMA_Channelx->CC |= DMA_BufferChannel ;
}
else /* Cacheability Feature disabled on channel xt */
{
DMA_Channelx->CC &= ~ DMA_BufferChannel ;
}
}
/*******************************************************************************
* Function Name : MA_ChannelProt0Mod
* Description : Sets The User or Privileged mode for the specified DMA_Channelx
* Input :
* -DMA_Channelx: where x can be 0,1,2,3,4,5,6,or 7 to select the DMA Channel.
* -Prot0Mode: Specifies the Privileged mode Or the User mode.
* This parameter can be:
* - DMA_PrevilegedMode
* - DMA_UserMode
*
*
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_ChannelProt0Mode (DMA_Channel_TypeDef * DMA_Channelx, u32 Prot0Mode)
{
if (Prot0Mode==DMA_PrevilegedMode) /* Privileged mode */
{
DMA_Channelx->CC |= DMA_PrevilegedMode ;
}
else /* User mode */
{
DMA_Channelx->CC &= DMA_UserMode ;
}
}
/*******************************************************************************
* Function Name : DMA_ChannelSRCIncConfig
* Description : Enables or disables the Source address incrementation after each transfer for
* the specified DMA_Channelx
* Input :
* -DMA_Channelx: where x can be 0,1,2,3,4,5,6,or 7 to select the DMA Channel.
* -NewState: new state of the specified DMA_Channelx mask interrupt.
* This parameter can be: ENABLE or DISABLE.
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_ChannelSRCIncConfig (DMA_Channel_TypeDef * DMA_Channelx, FunctionalState NewState)
{
if (NewState==ENABLE) /* The Source address is incremented after each transfer */
{
DMA_Channelx->CC |= DMA_ChannelSRCInc ;
}
else /* The Source address is not incremented after each Transfer */
{
DMA_Channelx->CC &= ~ DMA_ChannelSRCInc ;
}
}
/*******************************************************************************
* Function Name : DMA_ChannelDESIncConfig
* Description : Enables or disables the Destination address incrementation after each transfer for
* the specified DMA_Channelx
* Input :
* -DMA_Channelx: where x can be 0,1,2,3,4,5,6,or 7 to select the DMA Channel.
* -NewState: new state of the specified DMA_Channelx mask interrupt.
* This parameter can be: ENABLE or DISABLE.
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_ChannelDESIncConfig (DMA_Channel_TypeDef * DMA_Channelx, FunctionalState NewState)
{
if (NewState==ENABLE) /* The Destination address is incremented after each transfer */
{
DMA_Channelx->CC |= DMA_ChannelDESInc ;
}
else /* The Destination address is not incremented after each Transfer */
{
DMA_Channelx->CC &= ~ DMA_ChannelDESInc ;
}
}
/********************************************************************************
* Function Name : DMA_GetChannelStatus
* Description : Checks the status of DMA channelx ( Enabled or Disabled).
* - ChannelIndx:specifies the DMA Channel to be checked.
* This parameter can be:
* - Channel0
* - Channel1
* - Channel2
* - Channel3
* - Channel4
* - Channel5
* - Channel6
* - Channel7
* Output : None.
*
* Return : SET or RESET.
*******************************************************************************/
FlagStatus DMA_GetChannelStatus(u8 ChannelIndx )
{
if ( ( DMA->ENCSR & (1 << ChannelIndx )) != RESET )
{
return SET; /* Channelx Enabled */
}
else
{
return RESET; /* Channelx Disabled */
}
}
/********************************************************************************
* Function Name : DMA_GetITStatus
* Description : Checks the status of Terminal Count and Error interrupts request after and before Masking.
* Input :
* - ChannelIndx:specifies the DMA Channel to be checked.
* This parameter can be:
* - Channel0
* - Channel1
* - Channel2
* - Channel3
* - Channel4
* - Channel5
* - Channel6
* - Channel7
*
*. - DMA_ITReq: specifies the DMA interrupt request status to be checked.
* This parameter can be:
*
* - DMA_IS
* - DMA_TCS
* - DMA_ES
* - DMA_TCRS
* - DMA_ERS.
*
* Output : None.
*
* Return : SET or RESET.
*******************************************************************************/
ITStatus DMA_GetITStatus(u8 ChannelIndx,u8 DMA_ITReq)
{
u32 DMAReg = 0;
switch(DMA_ITReq)
{
case (DMA_IS): /*The status of the interrupts after masking : logical or of all Interrupts after Masking*/
DMAReg = DMA->ISR;
break;
case (DMA_TCS): /* The status of the Terminal count request after masking */
DMAReg = DMA->TCISR;
break;
case (DMA_ES): /* The status of the error request after masking */
DMAReg = DMA->EISR;
break;
case (DMA_TCRS): /* Indicates if the DMA channel is requesting a transfer complete (terminal count Interrupt) prior to masking or Not. */
DMAReg = DMA->TCRISR;
break;
case (DMA_ERS): /* Indicates if the DMA channel is requesting an Error Interrupt prior to masking or Not. */
DMAReg = DMA->ERISR;
break;
}
if((DMAReg &(1 << ChannelIndx )) != RESET )
{
return SET;
}
else
{
return RESET;
}
}
/********************************************************************************
* Function Name : DMA_ClearIT
* Description : Clears The Interrupt pending bits for termnal count or Error interrupts for a specified DMA Channel.
* - ChannelIndx:specifies the DMA Channel to be checked.
* This parameter can be:
* - Channel0
* - Channel1
* - Channel2
* - Channel3
* - Channel4
* - Channel5
* - Channel6
* - Channel7
* - DMA_ITClr : Specifies the DMA interrupt pending to be cleared.
*. This parameter can be:
* - DMA_TCC
* - DMA_EC.
*
* Output : None.
* Return : SET or RESET.
*******************************************************************************/
void DMA_ClearIT(u8 ChannelIndx,u8 DMA_ITClr)
{
switch(DMA_ITClr)
{
case (DMA_TCC): /* Clear The status of the Terminal count interrupt on the corresponding channel.*/
DMA->TCICR |=(1 << ChannelIndx );
break;
case (DMA_EC): /* Clear The status of the error interrupt on the corresponding channel.*/
DMA->EICR |=(1 << ChannelIndx );
break;
}
}
/*******************************************************************************
* Function Name : DMA_Cmd(FunctionalState NewState)
* Description : Enables or disables the DMA peripheral.
*
* Input :
* -NewState: new state of the DMA.
* This parameter can be: ENABLE or DISABLE.
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_Cmd(FunctionalState NewState)
{
if (NewState==ENABLE) /* ENABLE the DMA peripheral */
{
DMA-> CNFR |= DMA_Enable ;
}
else /* DISABLE the DMA peripheral */
{
DMA-> CNFR &= ~ DMA_Enable ;
}
}
/*******************************************************************************
* Function Name : DMA_ChannelCmd
* Description : Enables or disables the specified DMA_Channelx
*
* Input :
* -DMA_Channelx: where x can be 0,1,2,3,4,5,6,or 7 to select the DMA Channel.
* -NewState: new state of the specified DMA_Channelx mask interrupt.
* This parameter can be: ENABLE or DISABLE.
* Output : None.
* Return : None.
*******************************************************************************/
void DMA_ChannelCmd (DMA_Channel_TypeDef *DMA_Channelx,FunctionalState NewState)
{
if (NewState==ENABLE) /* Enable The Channelx */
{
DMA_Channelx->CCNF |= DMA_ChannelEnable ;
}
else /* Disable The Channelx */
{
DMA_Channelx-> CCNF &= ~ DMA_ChannelEnable ;
}
}
/********************************************************************************
* Function Name : DMA_GetChannelActiveStatus
* Description : Checks The DMA_Channelx FIFO if it has data or not.
* Input :
* -DMA_Channelx: where x can be 0,1,2,3,4,5,6,or 7 to select the DMA Channel.
*
*
* Output : None.
*
* Return : SET or RESET.
*******************************************************************************/
FlagStatus DMA_GetChannelActiveStatus( DMA_Channel_TypeDef * DMA_Channelx )
{
if ( ( DMA_Channelx->CCNF & DMA_ChannelActive) != RESET )
{
return SET; /* The DMA_Channelx FIFO has data */
}
else
{
return RESET; /* No data in the DMA_Channelx FIFO */
}
}
/********************************************************************************
* Function Name : DMA_DeInit
* Description : Initializes the DMA peripheral registers to their default reset values.
*
*
* Input : None
*
* Output : None.
*
* Called Functions:
*
* - SCU_AHBPeriphReset: Function defined in the System clock Unit "scu.c".
*
*
* Return : None
*******************************************************************************/
void DMA_DeInit(void)
{
SCU_AHBPeriphReset(__DMA, ENABLE); /*DMA peripheral is under Reset " Reset on"*/
SCU_AHBPeriphReset(__DMA, DISABLE); /*DMA peripheral Reset off*/
}
/********************************************************************************
* Function Name : DMA_StructInit
* Description : Fills each DMA_InitStruct member with its reset value.
* Input :
* -DMA_InitStruct: pointer to a DMA_InitTypeDef structure which will be initialized.
*
* Output : None.
*
* Return : None
*******************************************************************************/
void DMA_StructInit(DMA_InitTypeDef * DMA_InitStruct)
{
/* Initialize The current source address */
DMA_InitStruct-> DMA_Channel_SrcAdd =0x0000000;
/* Initialize The current Destination address */
DMA_InitStruct->DMA_Channel_DesAdd=0x00000000;
/* Initialize The Linked List Items */
DMA_InitStruct->DMA_Channel_LLstItm=0x00000000 ;
/* Initialize The Destination width */
DMA_InitStruct->DMA_Channel_DesWidth= DMA_DesWidth_Byte;
/* Initialize The source width */
DMA_InitStruct->DMA_Channel_SrcWidth= DMA_SrcWidth_Byte;
/* Initialize The Burst Size for the Destination */
DMA_InitStruct->DMA_Channel_DesBstSize= DMA_DesBst_1Data; /* 1 Data "one Data can be byte, halfword or word depending on the Destination width */
/* Initialize The Burst Size for the Source*/
DMA_InitStruct->DMA_Channel_SrcBstSize= DMA_SrcBst_1Data; /* 1 Data "one Data can be byte, halfword or word depending on the source width */
/* Initialize The Flow control and transfer type for the DMA transfer */
DMA_InitStruct->DMA_Channel_FlowCntrl=DMA_FlowCntrlt0_DMA; /* memory to memory transfer with DMA as flow controller */
/* Initialize The Transfer Size */
DMA_InitStruct->DMA_Channel_TrsfSize =0x00;
/* Initialize the DMA source request peripheral :"This field is ignored if the source of the transfer is from memory" */
DMA_InitStruct->DMA_Channel_Src =0x00;
/* Initialize the DMA Destination request peripheral :"This field is ignored if the destination of the transfer is to memory.*/
DMA_InitStruct->DMA_Channel_Des=0x00;
}
/********************************************************************************
* Function Name : DMA_Init
* Description : Initializes the DMA_Channelx according to the specified parameters
* in the DMA_InitStruct .
*
* Input :
* -DMA_Channelx: where x can be 0,1,2,3,4,5,6,or 7 to select the DMA Channel.
* -DMA_InitStruct: pointer to a DMA_InitTypeDef structure
* ( Structure Config to be load in DMA Registers). .
*
* Output : None.
*
* Return : None
*******************************************************************************/
void DMA_Init(DMA_Channel_TypeDef * DMA_Channelx, DMA_InitTypeDef * DMA_InitStruct)
{
/* Select the DMA source peripheral request */
DMA_Channelx->CCNF &= SRC_Mask;
DMA_Channelx->CCNF |= DMA_InitStruct->DMA_Channel_Src;
/* Select the flow controller and the transfer type */
DMA_Channelx->CCNF &= DMA_FlowCntrl_Mask;
DMA_Channelx->CCNF |=DMA_InitStruct->DMA_Channel_FlowCntrl;
/* Select the DMA Destination peripheral request*/
DMA_Channelx->CCNF &= DES_Mask;
DMA_Channelx->CCNF |= DMA_InitStruct->DMA_Channel_Des;
/* Set the source address */
DMA_Channelx->SRC = DMA_InitStruct-> DMA_Channel_SrcAdd ;
/* Set the destination address */
DMA_Channelx->DES = DMA_InitStruct->DMA_Channel_DesAdd ;
/* Set the linked list Items address */
DMA_Channelx->LLI = DMA_InitStruct->DMA_Channel_LLstItm ;
/* Set The Destination width */
DMA_Channelx->CC &= DMA_Width_DES_MASK;
DMA_Channelx->CC |= DMA_InitStruct->DMA_Channel_DesWidth;
/* Set The Source width */
DMA_Channelx->CC &= DMA_Width_SRC_MASK;
DMA_Channelx->CC |= DMA_InitStruct->DMA_Channel_SrcWidth;
/* Set The Burst Size for the Destination */
DMA_Channelx->CC &= DMA_Bst_DES_MASK;
DMA_Channelx->CC |= DMA_InitStruct->DMA_Channel_DesBstSize;
/* Set The Burst Size for the Source */
DMA_Channelx->CC &= DMA_Bst_SRC_MASK;
DMA_Channelx->CC |=DMA_InitStruct->DMA_Channel_SrcBstSize;
/* Initialize The Transfer Size for the Source */
DMA_Channelx->CC &= DMA_TrsfSisze_Mask;
DMA_Channelx->CC |= DMA_InitStruct->DMA_Channel_TrsfSize;
}
/********************************************************************************
* Function Name : DMA_LLI_CCR_Init
* Description : Return linked list's control word according to the specified
* parameters in the LLI_CCR_InitStruct .
*
* Input : -LLI_CCR_InitStruct: pointer to a LLI_CCR_InitTypeDef structure
* ( Structure Config to be load in DMA Registers). .
*
* Output : None.
*
* Return : Control word
*******************************************************************************/
u32 DMA_LLI_CCR_Init(LLI_CCR_InitTypeDef * LLI_CCR_InitStruct)
{
u32 CC=0;
/* Set The Destination width */
CC &= DMA_Width_DES_MASK;
CC |= LLI_CCR_InitStruct->LLI_DesWidth;
/* Set The Source width */
CC &= DMA_Width_SRC_MASK;
CC |= LLI_CCR_InitStruct->LLI_SrcWidth;
/* Set The Burst Size for the Destination */
CC &= DMA_Bst_DES_MASK;
CC |= LLI_CCR_InitStruct->LLI_DesBstSize;
/* Set The Burst Size for the Source */
CC &= DMA_Bst_SRC_MASK;
CC |= LLI_CCR_InitStruct->LLI_SrcBstSize;
/* Initialize The Transfer Size for the Source */
CC &= DMA_TrsfSisze_Mask;
CC |= LLI_CCR_InitStruct->LLI_TrsfSize;
/* Enable or disable source increment*/
CC &= DMA_SrcIncrement_MASK ;
CC |= LLI_CCR_InitStruct->LLI_SrcIncrement;
/* Enable or disable destination increment*/
CC &= DMA_DesIncrement_MASK ;
CC |= LLI_CCR_InitStruct->LLI_DesIncrement;
/* Enable or disable cacheable access*/
CC &= DMA_CacheableAccess_MASK;
CC |= LLI_CCR_InitStruct->LLI_PROT0;
/* Enable or disable bufferable access*/
CC &= DMA_BufferableAccess_MASK;
CC |= LLI_CCR_InitStruct->LLI_PROT1;
/* Enable or disablePrivileged mode*/
CC &= DMA_PrivilegedAccess_MASK;
CC |= LLI_CCR_InitStruct->LLI_PROT2;
/* Enable or disable Terminal count interrupt*/
CC &= DMA_TCInterrupt_MASK ;
CC |= LLI_CCR_InitStruct->LLI_TCInterrupt;
return CC;
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_emi.c
0,0 → 1,234
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_emi.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the EMI firmware functions.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "91x_emi.h"
#include "91x_scu.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* These constant variables are used as masks to handle the EMI registers. */
#define EMI_Burst_and_PageModeRead_TL_Mask 0xFFFFF3FF
#define EMI_Burst_and_PageModeRead_Sel_Mask 0xFFFFFEFF
#define EMI_MemWidth_Mask 0xFFFFFFCF
#define EMI_WriteProtect_Mask 0xFFFFFFF7
#define EMI_ByteLane_Mask 0xFFFFFFFE
#define EMI_AccessRead_Dev_Mask 0xFFFFFDFF
#define EMI_BurstModeWrite_Sel_Mask 0xFFFEFFFF
#define EMI_AccessWrite_Dev_Mask 0xFFFDFFFF
#define EMI_BurstModeWrite_TL_Mask 0xFFF3FFFF
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Registers reset value */
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************
* Function Name : EMI_DeInit
* Description : Deinitializes the EMI peripheral registers to their default
* reset values.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void EMI_DeInit(void)
{
SCU_AHBPeriphReset(__EMI, ENABLE); /* EMI peripheral under Reset */
SCU_AHBPeriphReset(__EMI,DISABLE ); /* EMI not under Reset */
}
/*******************************************************************************
* Function Name : EMI_StructInit
* Description : Fills the EMI_InitTypeDef structure member with its reset
* value.
* Input : EMI_InitStruct : pointer to a EMI_InitTypeDef structure
* which will be initialized.
* Output : None
* Return : None
*******************************************************************************/
void EMI_StructInit( EMI_InitTypeDef *EMI_InitStruct)
{
/* Number of bus turnaround cycles added between read and write accesses.*/
/*This member can be 0x01,0x02,0x03, ....0xF (Reset value:0xF "15 cycles"*/
EMI_InitStruct->EMI_Bank_IDCY =0xF;
/* Number of wait states for read accesses*/
/*This member can be: 0x01,0x02,0x03, ....0x1F (Reset value:0x1F "31 cycles"*/
EMI_InitStruct->EMI_Bank_WSTRD =0x1F;
/* Number of wait states for write accesses*/
/*This member can be: 0x01,0x02,0x03, ....0x1F (Reset value:0x1F "31 cycles"*/
EMI_InitStruct->EMI_Bank_WSTWR =0x1F;
/*Output enable assertion delay from chip select assertion*/
/*This member can be: 0x01,0x02,0x03, ....0xF (Reset value:0x01 "1 cycle"*/
EMI_InitStruct->EMI_Bank_WSTROEN =0x01;
/*Write enable assertion delay from chip select assertion*/
/*This member can be: 0x01,0x02,0x03, ....0xF (Reset value:0x00 "0 cycle"*/
EMI_InitStruct->EMI_Bank_WSTWEN =0x00;
/*Number of wait states for burst read accesses after the first read.*/
/* They do not apply to non-burst devices.*/
/*This member can be: 0x01,0x02,0x03, ....0x1F (Reset value:0x1F "31 cycles"*/
EMI_InitStruct->EMI_Bank_BRDCR =0x1F;
/*This member Controls the memory width*/
/*This member can be :"EMI_Width_Byte" = 8 bits width or "EMI_Width_HalfWord" = 16 bits width*/
EMI_InitStruct->EMI_Bank_MemWidth = EMI_Width_Byte;
/*Write protection feature */
/*This member can be :"EMI_Bank_NonWriteProtect" = No write protection or "EMI_Bank_WriteProtect" = bank is write protected*/
EMI_InitStruct-> EMI_Bank_WriteProtection= EMI_Bank_NonWriteProtect;
/* Burst Read or page mode transfer length */
/*This member can be :"EMI_Read_4Data" or "EMI_Read_8Data" for page mode*/
/*Read and it can be "EMI_Read_4Data","EMI_Read_8Data","EMI_Read_16Data" */
/*or "EMI_Read_Continuous"(synchronous only) for burst mode read*/
EMI_InitStruct->EMI_Burst_and_PageModeRead_TransferLength= EMI_Read_4Data;
/*Select or deselect the Burst and page mode read*/
/*This member can be :"EMI_NormalMode" or "EMI_BurstModeRead" */
EMI_InitStruct->EMI_Burst_and_PageModeRead_Selection = EMI_NormalMode;
/* Enables the byte select signals in 16-bit PSRAM bus mode*/
/*(EMI_UBn and EMI_LBn) are enabled. Bit 2 in the GPIO EMI register */
/*(SCU_EMI) must also be set to 1 */
EMI_InitStruct->EMI_ByteLane_Selection=EMI_Byte_Select_disabled;
/*Access the device using synchronous accesses for reads*/
EMI_InitStruct-> EMI_AccessRead_Support=EMI_Read_Asyn;
/*Access the device using synchronous accesses for Write*/
EMI_InitStruct->EMI_AccessWrite_Support=EMI_Write_Asyn;
/* Burst Write transfer length */
/*This member can be :"EMI_Write_4Data", "EMI_Write_8Data" or */
/*"EMI_Write_Continuous" for synchronous only*/
EMI_InitStruct->EMI_BurstModeWrite_TransferLength = EMI_Write_4Data;
/* Select burst or non-burst write to memory*/
EMI_InitStruct-> EMI_BurstModeWrite_Selection=EMI_NonBurstModeWrite;
}
/*******************************************************************************
* Function Name : EMI_Init
* Description : Initializes EMI peripheral according to the specified
* parameters in the EMI_InitStruct.
* Input : EMI_Bankx:where x can be 0,1,2 or 3 to select the EMI Bank.
EMI_InitStruct: pointer to a EMI_InitTypeDef structure
( Structure Config to be loaded in EMI Registers). .
* Output : None
* Return : None
*******************************************************************************/
void EMI_Init( EMI_Bank_TypeDef* EMI_Bankx, EMI_InitTypeDef* EMI_InitStruct)
{
EMI_Bankx->ICR = EMI_InitStruct-> EMI_Bank_IDCY ;
EMI_Bankx->RCR = EMI_InitStruct->EMI_Bank_WSTRD ;
EMI_Bankx->WCR = EMI_InitStruct->EMI_Bank_WSTWR ;
EMI_Bankx->OECR = EMI_InitStruct->EMI_Bank_WSTROEN;
EMI_Bankx->WECR = EMI_InitStruct->EMI_Bank_WSTWEN ;
EMI_Bankx->BRDCR = EMI_InitStruct->EMI_Bank_BRDCR ;
EMI_Bankx->BCR &= EMI_MemWidth_Mask;
EMI_Bankx->BCR |= EMI_InitStruct->EMI_Bank_MemWidth;
EMI_Bankx->BCR &= EMI_WriteProtect_Mask;
EMI_Bankx->BCR |= EMI_InitStruct->EMI_Bank_WriteProtection;
EMI_Bankx->BCR &= EMI_Burst_and_PageModeRead_TL_Mask;
EMI_Bankx->BCR |= EMI_InitStruct->EMI_Burst_and_PageModeRead_TransferLength;
EMI_Bankx->BCR &= EMI_Burst_and_PageModeRead_Sel_Mask;
EMI_Bankx->BCR |= EMI_InitStruct->EMI_Burst_and_PageModeRead_Selection;
EMI_Bankx->BCR &= EMI_BurstModeWrite_TL_Mask;
EMI_Bankx->BCR |= EMI_InitStruct->EMI_BurstModeWrite_TransferLength;
EMI_Bankx->BCR &= EMI_BurstModeWrite_Sel_Mask;
EMI_Bankx->BCR |= EMI_InitStruct->EMI_BurstModeWrite_Selection;
EMI_Bankx->BCR &= EMI_ByteLane_Mask;
EMI_Bankx->BCR |= EMI_InitStruct->EMI_ByteLane_Selection;
EMI_Bankx->BCR &= EMI_AccessRead_Dev_Mask;
EMI_Bankx->BCR |= EMI_InitStruct->EMI_AccessRead_Support;
EMI_Bankx->BCR &= EMI_AccessWrite_Dev_Mask;
EMI_Bankx->BCR |= EMI_InitStruct->EMI_AccessWrite_Support;
}
/*******************************************************************************
* Function Name : EMI_BCLKCmd
* Description : Enable or Disable the activation of BCLK clock (LFBGA only)
* Input : NewState : ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void EMI_BCLKCmd(FunctionalState NewState)
{
if (NewState == ENABLE)
*EMI_CCR |=0x1;
else
*EMI_CCR &=~0x1;
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_fmi.c
0,0 → 1,513
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_fmi.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the FMI firmware functions.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH
* CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS
* A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
* OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
* OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
* CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Standard include ----------------------------------------------------------*/
#include "91x_fmi.h"
/* Include of other module interface headers ---------------------------------*/
/* Local includes ------------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define TIMEOUT 0xFFFFFF /* Timeout value */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Interface functions -------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : FMI_BankRemapConfig
* Description : Configure the addresses and sizes of bank 0 and bank 1.
* Input1 : FMI_BootBankSize: specifies the boot bank size.
* This parameter can be one of the following values:
* - 0x0: 32KBytes.
* - 0x1: 64KBytes.
* - 0x2: 128KBytes.
* - 0x3: 256KBytes.
* - 0x4: 512KBytes.
* ....
* - 0xB: 64MBytes.
* Input2 : FMI_NonBootBankSize: specifies the non boot bank size.
* This parameter can be one of the following values:
* - 0x0: 8KBytes.
* - 0x1: 16KBytes.
* - 0x2: 32KBytes.
* - 0x3: 64KBytes.
* ....
* - 0xD: 64MBytes.
* Input3 : FMI_BootBankAddress: specifies the address of the boot bank.
* Input4 : FMI_NonBootBankAddress: specifies the address of the non
* boot bank.
* Output : None
* Return : None
*******************************************************************************/
void FMI_BankRemapConfig(u8 FMI_BootBankSize, u8 FMI_NonBootBankSize, \
u32 FMI_BootBankAddress, u32 FMI_NonBootBankAddress)
{
FMI->BBSR = FMI_BootBankSize;
FMI->NBBSR = FMI_NonBootBankSize;
FMI->BBADR = (FMI_BootBankAddress >> 2);
FMI->NBBADR = (FMI_NonBootBankAddress >> 2);
FMI->CR |= 0x18; /* Enable bank 1 */
}
/*******************************************************************************
* Function Name : FMI_Config
* Description : Configure the FMI.
* Input1 : FMI_ReadWaitState: specifies the needed read wait states.
* This parameter can be one of the following values:
* - FMI_READ_WAIT_STATE_1: One read wait state.
* - FMI_READ_WAIT_STATE_2: Two read wait states.
* - FMI_READ_WAIT_STATE_3: Three read wait states.
* Input2 : FMI_WriteWaitState: specifies the needed write wait states.
* This parameter can be one of the following values:
* - FMI_WRITE_WAIT_STATE_1: One write wait state.
* - FMI_WRITE_WAIT_STATE_2: Two write wait states.
* Input3 : FMI_PWD: specifies the power down mode status.
* This parameter can be one of the following values:
* - FMI_PWD_ENABLE: Enable the PWD.
* - FMI_PWD_DISABLE: Disable the PWD.
* Input4 : FMI_LVDEN: specifies the low voltage detector status.
* This parameter can be one of the following values:
* - FMI_LVD_ENABLE: Enable the LVD.
* - FMI_LVD_DISABLE: Disable the LVD.
* Input5 : FMI_FreqRange: specifies the working frequency range.
* This parameter can be one of the following values:
* - FMI_FREQ_LOW: Low working frequency (up to 66MHz).
* - FMI_FREQ_HIGH: High working frequency (above 66MHz) .
* Output : None
* Return : None
*
*NOTE:
*This function should be executed from SRAM when booting from bank1
*to avoid any conflicts(reading and writing at the same time in bank1)
*
*******************************************************************************/
void FMI_Config(u16 FMI_ReadWaitState, u32 FMI_WriteWaitState, u16 FMI_PWD,\
u16 FMI_LVDEN, u16 FMI_FreqRange)
{
/* Configure the write wait state value */
if (FMI_WriteWaitState == FMI_WRITE_WAIT_STATE_1)
{
FMI->CR |= FMI_WRITE_WAIT_STATE_1;
}
else
{
FMI->CR &= FMI_WRITE_WAIT_STATE_0;
}
/* Write a write flash configuration register command */
*(vu16 *)FMI_BANK_1 = 0x60;
/* Configure the flash configuration register */
*(vu16 *)(FMI_BANK_1|FMI_ReadWaitState|FMI_PWD|FMI_LVDEN|FMI_FreqRange) = 0x03;
}
/*******************************************************************************
* Function Name : FMI_EraseSector
* Description : Erase the needed sector.
* Input : FMI_Sector: specifies the sector to be erased.
* This parameter can be one of the following values:
* - FMI_B0S0: FMI bank 0 sector 0.
* ...
* - FMI_B0S31: FMI bank 0 sector 31.
*
*
* - FMI_B1S0: FMI bank 1 sector 0.
* ...
* - FMI_B1S7: FMI bank 1 sector 7.
* Output : None
* Return : None
*******************************************************************************/
void FMI_EraseSector(vu32 FMI_Sector)
{
/* Write an erase set-up command to the sector */
*(vu16 *)FMI_Sector = 0x20;
/* Write an erase confirm command to the sector */
*(vu16 *)FMI_Sector = 0xD0;
}
/*******************************************************************************
* Function Name : FMI_EraseBank
* Description : Erase the needed bank.
* Input : FMI_Bank: specifies the bank to be erased.
* This parameter can be one of the following values:
* - FMI_BANK_0: FMI bank 0.
* - FMI_BANK_1: FMI bank 1.
* Output : None
* Return : None
*******************************************************************************/
void FMI_EraseBank(vu32 FMI_Bank)
{
/* Write a bank erase set-up command to the bank */
*(vu16 *)FMI_Bank = 0x80;
/* Write an erase confirm command to the sector */
*(vu16 *)FMI_Bank = 0xD0;
}
/*******************************************************************************
* Function Name : FMI_WriteHalfWord
* Description : Write a halfword to the needed Flash memory address.
* Input 1 : FMI_Address: specifies the address offset where the data will
* be written.
* Input 2 : FMI_Data: the needed data.
* Output : None
* Return : None
*******************************************************************************/
void FMI_WriteHalfWord(u32 FMI_Address, u16 FMI_Data)
{
/* Write a program command to the sector to be written */
*(vu16 *)(FMI_Address & 0xFFFFFFFC) = 0x40;
/* Write the halfword to the destination address */
*(vu16 *)FMI_Address = FMI_Data;
}
/*******************************************************************************
* Function Name : FMI_WriteOTPHalfWord
* Description : Write a halfword to the needed OTP sector address.
* Input 1 : FMI_OTPHWAddress: specifies the halfword address offset
* where the data will be written.
* This parameter can be one of the following values:
* - FMI_OTP_LOW_HALFWORD_0: OTP Low halfword 0.
* - FMI_OTP_HIGH_HALFWORD_0: OTP High halfword 0.
* - FMI_OTP_LOW_HALFWORD_1: OTP Low halfword 1.
* - FMI_OTP_HIGH_HALFWORD_1: OTP High halfword 1.
* - FMI_OTP_LOW_HALFWORD_2: OTP Low halfword 2.
* - FMI_OTP_HIGH_HALFWORD_2: OTP High halfword 2.
* - FMI_OTP_LOW_HALFWORD_3: OTP Low halfword 3.
* - FMI_OTP_HIGH_HALFWORD_3: OTP High halfword 3.
* - FMI_OTP_LOW_HALFWORD_4: OTP Low halfword 4.
* - FMI_OTP_HIGH_HALFWORD_4: OTP High halfword 4.
* - FMI_OTP_LOW_HALFWORD_5: OTP Low halfword 5.
* - FMI_OTP_HIGH_HALFWORD_5: OTP High halfword 5.
* - FMI_OTP_LOW_HALFWORD_6: OTP Low halfword 6.
* - FMI_OTP_HIGH_HALFWORD_6: OTP High halfword 6.
* - FMI_OTP_LOW_HALFWORD_7: OTP Low halfword 7.
* - FMI_OTP_HIGH_HALFWORD_7: OTP High halfword 7.
* Input 2 : FMI_OTPData: The needed OTP data.
* Output : None
* Return : None
*******************************************************************************/
void FMI_WriteOTPHalfWord(u8 FMI_OTPHWAddress, u16 FMI_OTPData)
{
/* Write a write OTP command to the needed address */
*(vu16 *)(FMI_BANK_1) = 0xC0;
/* Write the halfword to the destination address */
*(vu16 *)(FMI_BANK_1 + FMI_OTPHWAddress) = FMI_OTPData;
}
/*******************************************************************************
* Function Name : FMI_ReadWord
* Description : Read the correspondent data.
* Input : FMI_Address: specifies the needed address.
* Output : None
* Return : The data contained in the specified address.
*******************************************************************************/
u32 FMI_ReadWord(u32 FMI_Address)
{
return(*(u32*)FMI_Address);
}
/*******************************************************************************
* Function Name : FMI_ReadOTPData
* Description : Read data from the OTP sector.
* Input : FMI_OTPAddress: specifies the address of the data to be read.
* This parameter can be one of the following values:
* - FMI_OTP_WORD_0: OTP word 0 .
* - FMI_OTP_WORD_1: OTP word 1 .
* - FMI_OTP_WORD_2: OTP word 2 .
* - FMI_OTP_WORD_3: OTP word 3 .
* - FMI_OTP_WORD_4: OTP word 4 .
* - FMI_OTP_WORD_5: OTP word 5 .
* - FMI_OTP_WORD_6: OTP word 6 .
* - FMI_OTP_WORD_7: OTP word 7 .
* Output : None
* Return : The needed OTP words.
*******************************************************************************/
u32 FMI_ReadOTPData(u8 FMI_OTPAddress)
{
u32 OTP_Data = 0x0;
/* write a read OTP sector command */
*(vu16 *)(FMI_BANK_1) = 0x98;
/* Read the correspondent data */
OTP_Data = (*(vu32*)(FMI_BANK_1 + FMI_OTPAddress));
/* Write a read array command */
*(vu16 *)(FMI_BANK_1) = 0xFF;
return OTP_Data;
}
/*******************************************************************************
* Function Name : FMI_GetFlagStatus
* Description : Check whether the specified FMI flag is set or not.
* Input1 : FMI_Flag: flag to check.
* This parameter can be one of the following values:
* - FMI_FLAG_SPS: Sector Protection Status Flag.
* - FMI_FLAG_PSS: Program Suspend Status Flag.
* - FMI_FLAG_PS: Program Status Flag.
* - FMI_FLAG_ES: Erase Status Flag.
* - FMI_FLAG_ESS: Erase Suspend Status Flag.
* - FMI_FLAG_PECS: FPEC Status Flag.
* Input2 : FMI_Bank: specifies the needed bank.
* This parameter can be one of the following values:
* - FMI_BANK_0: FMI bank 0.
* - FMI_BANK_1: FMI bank 1.
* Output : None
* Return : None
*******************************************************************************/
FlagStatus FMI_GetFlagStatus(u8 FMI_Flag, vu32 FMI_Bank)
{
u16 FMI_Status_Register = 0;
/* Write a read status register command */
*(vu16 *)FMI_Bank = 0x70;
/* Wait until operation completion */
while(!((*(vu16 *)FMI_Bank) & 0x80));
/* Read the status register */
FMI_Status_Register = *(vu16 *)FMI_Bank;
/* Write a read array command */
*(vu16 *)FMI_Bank = 0xFF;
if((FMI_Status_Register & FMI_Flag) != RESET)
{
return SET;
}
else
{
return RESET;
}
}
/*******************************************************************************
* Function Name : FMI_GetReadWaitStateValue
* Description : Get the current Read wait state value.
* Input : None
* Output : None
* Return : The current read wait states value.
*******************************************************************************/
u16 FMI_GetReadWaitStateValue(void)
{
u16 FMI_Configuration_Register = 0;
/*Write a read RSIG command to any word address in Bank1*/
*(vu16 *)FMI_BANK_1 = 0x90;
/* Read the flash configuration register */
#ifdef Flash_512KB_256KB
FMI_Configuration_Register = *(vu16 *)(FMI_BANK_1 + 0x14);
#endif
#ifdef Flash_2MB_1MB
FMI_Configuration_Register = *(vu16 *)(FMI_BANK_1 + 0x1C);
#endif
/* Write a read array command */
*(vu16 *)FMI_BANK_1 = 0xFF;
FMI_Configuration_Register = ((FMI_Configuration_Register >> 11) + 1) & 0x3;
/* Return the wait states value */
return FMI_Configuration_Register;
}
/*******************************************************************************
* Function Name : FMI_GetWriteWaitStateValue
* Description : Get the current write wait state value.
* Input : None
* Output : None
* Return : The current write wait states value.
*******************************************************************************/
u16 FMI_GetWriteWaitStateValue(void)
{
return ((u16)((FMI->CR & 0x100) >> 8));
}
/*******************************************************************************
* Function Name : FMI_SuspendEnable
* Description : Suspend command enable.
* Input : FMI_Bank: specifies the bank to be suspended.
* This parameter can be one of the following values:
* - FMI_BANK_0: FMI bank 0.
* - FMI_BANK_1: FMI bank 1.
* Output : None
* Return : None
*******************************************************************************/
void FMI_SuspendEnable(vu32 FMI_Bank)
{
/* Write a suspend command to the bank */
*(vu16 *)FMI_Bank = 0xB0;
}
/*******************************************************************************
* Function Name : FMI_ResumeEnable
* Description : Resume the suspended command.
* Input : FMI_Bank: specifies the suspended bank.
* This parameter can be one of the following values:
* - FMI_BANK_0: FMI bank 0.
* - FMI_BANK_1: FMI bank 1.
* Output : None
* Return : None
*******************************************************************************/
void FMI_ResumeEnable(vu32 FMI_Bank)
{
/* Write a resume command to the bank */
*(vu16 *)FMI_Bank = 0xD0;
}
/*******************************************************************************
* Function Name : FMI_ClearFlag
* Description : Clear the FMI Flags on the correspondent bank.
* Input : FMI_Bank: specifies the needed bank.
* This parameter can be one of the following values:
* - FMI_BANK_0: FMI bank 0.
* - FMI_BANK_1: FMI bank 1.
* Output : None
* Return : None
*******************************************************************************/
void FMI_ClearFlag(vu32 FMI_Bank)
{
/* Write a clear status register command */
*(vu16 *)FMI_Bank = 0x50;
}
/*******************************************************************************
* Function Name : FMI_WriteProtectionCmd
* Description : Enable or disable the write protection for the needed sector.
* Input1 : FMI_Sector: specifies the sector to be protected or
* unprotected.
* This parameter can be one of the following values:
*
* - FMI_B0S0: FMI bank 0 sector 0.
* ...
* - FMI_B0S31: FMI bank 0 sector 31.
*
*
* - FMI_B1S0: FMI bank 1 sector 0.
* ...
* - FMI_B1S7: FMI bank 1 sector 7.
*
* Input2 : FMI_NewState: specifies the protection status.
* This parameter can be one of the following values:
* - ENABLE: Enable the protection.
* - DISABLE: Disable the protection.
* Output : None
* Return : None
*******************************************************************************/
void FMI_WriteProtectionCmd(vu32 FMI_Sector, FunctionalState FMI_NewState)
{
if (FMI_NewState == ENABLE)
{
*(vu16*)FMI_Sector = 0x60;
*(vu16*)FMI_Sector = 0x01;
*(vu16*)FMI_Sector = 0xFF;
}
else /* DISABLE */
{
*(vu16*)FMI_Sector = 0x60;
*(vu16*)FMI_Sector = 0xD0;
*(vu16*)FMI_Sector = 0xFF;
}
}
/*******************************************************************************
* Function Name : FMI_WaitForLastOperation
* Description : Wait until the last operation (Write halfword, Write OTP
* halfword, Erase sector and Erase bank) completion.
* Input : FMI_Bank: specifies the bank where the operation is on going.
* This parameter can be one of the following values:
* - FMI_BANK_0: FMI bank 0.
* - FMI_BANK_1: FMI bank 1.
* Output : None
* Return : The timeout status.
* This parameter can be one of the following values:
* - FMI_TIME_OUT_ERROR: Timeout error occurred.
* - FMI_NO_TIME_OUT_ERROR: No timeout error.
*******************************************************************************/
u8 FMI_WaitForLastOperation(vu32 FMI_Bank)
{
u32 Time_Out = 0;
/* Write a read status register command */
*(vu16 *)(FMI_Bank) = 0x70;
/* Wait until operation compeletion */
while((!((*(vu16 *)FMI_Bank) & 0x80))&&(Time_Out < TIMEOUT ))
{
Time_Out ++; /* Time Out */
}
/* Write a read array command */
*(vu16 *)FMI_Bank = 0xFF;
if (Time_Out == TIMEOUT)
{
return FMI_TIME_OUT_ERROR;
}
else
{
return FMI_NO_TIME_OUT_ERROR;
}
}
/*******************************************************************************
* Function Name : FMI_ReadRSIGData
* Description : Read the Electronic Signature stored in the user configuration
* sector of Bank 1.
* Input : FMI_LSB_RSIGAddress: specifies the low byte of the address
* to select the register.
* This parameter can be one of the following values:
* - FMI_ReadRSIGData_0.
* - FMI_ReadRSIGData_1.
* - FMI_ReadRSIGData_2.
* - FMI_ReadRSIGData_3.
* - FMI_ReadRSIGData_4.
* - FMI_ReadRSIGData_5.
* - FMI_ReadRSIGData_6.
* - FMI_ReadRSIGData_7.
*
* Output : None
* Return : The needed RSIG data.
*******************************************************************************/
u32 FMI_ReadRSIGData(u8 FMI_LSB_RSIGAddress)
{
u32 RSIG_Data = 0x0;
/*Write a read RSIG command to any word address in Bank1*/
*(vu16 *)(FMI_BANK_1) = 0x90;
/*Read any RSIG register from any address in Bank1*/
RSIG_Data = (*(vu32*)(FMI_BANK_1 + (FMI_LSB_RSIGAddress<<2)));
/*write a Read Array command (FFh) to any word address in Bank 1 to*/
/*return it to Read Array mode.*/
*(vu16 *)FMI_BANK_1 = 0xFF;
return RSIG_Data;
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_gpio.c
0,0 → 1,451
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_gpio.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the GPIO firmware functions.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "91x_gpio.h"
#include "91x_scu.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static u8 GPIO_GetGPIONumber(GPIO_TypeDef* GPIOx);
static u16 GPIO_GetAnaloClearBits(u8 GPIO_ANAChannel);
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : GPIO_DeInit
* Description : Deinitializes the GPIOx peripheral registers to their default
* reset values.
* Input : GPIOx: where x can be (0..9) to select the GPIO peripheral.
* Output : None
* Return : None
*******************************************************************************/
void GPIO_DeInit(GPIO_TypeDef* GPIOx)
{
/* Reset the GPIO registers values */
if(GPIOx == GPIO0)
{
SCU_APBPeriphReset(__GPIO0,ENABLE);
SCU_APBPeriphReset(__GPIO0,DISABLE);
SCU->GPIOTYPE[0x00] = 0x0000 ;
SCU->GPIOOUT[0x00] = 0x0000;
SCU->GPIOIN[0x00] = 0x0000;
}
if(GPIOx == GPIO1)
{
SCU_APBPeriphReset(__GPIO1,ENABLE);
SCU_APBPeriphReset(__GPIO1,DISABLE);
SCU->GPIOTYPE[0x01] = 0x0000 ;
SCU->GPIOOUT[0x01] = 0x0000;
SCU->GPIOIN[0x01] = 0x0000;
}
if(GPIOx == GPIO2)
{
SCU_APBPeriphReset(__GPIO2,ENABLE);
SCU_APBPeriphReset(__GPIO2,DISABLE);
SCU->GPIOTYPE[0x02] = 0x0000 ;
SCU->GPIOOUT[0x02] = 0x0000;
SCU->GPIOIN[0x02] = 0x0000;
}
if(GPIOx == GPIO3)
{
SCU_APBPeriphReset(__GPIO3,ENABLE);
SCU_APBPeriphReset(__GPIO3,DISABLE);
SCU->GPIOTYPE[0x03] = 0x0000 ;
SCU->GPIOOUT[0x03] = 0x0000;
SCU->GPIOIN[0x03] = 0x0000;
}
if(GPIOx == GPIO4)
{
SCU_APBPeriphReset(__GPIO4,ENABLE);
SCU_APBPeriphReset(__GPIO4,DISABLE);
SCU->GPIOTYPE[0x04] = 0x0000 ;
SCU->GPIOOUT[0x04] = 0x0000;
SCU->GPIOIN[0x04] = 0x0000;
SCU->GPIOANA = 0x00;
}
if(GPIOx == GPIO5)
{
SCU_APBPeriphReset(__GPIO5,ENABLE);
SCU_APBPeriphReset(__GPIO5,DISABLE);
SCU->GPIOTYPE[0x05] = 0x0000 ;
SCU->GPIOOUT[0x05] = 0x0000;
SCU->GPIOIN[0x05] = 0x0000;
}
if(GPIOx == GPIO6)
{
SCU_APBPeriphReset(__GPIO6,ENABLE);
SCU_APBPeriphReset(__GPIO6,DISABLE);
SCU->GPIOTYPE[0x06] = 0x0000 ;
SCU->GPIOOUT[0x06] = 0x0000;
SCU->GPIOIN[0x06] = 0x0000;
}
if(GPIOx == GPIO7)
{
SCU_APBPeriphReset(__GPIO7,ENABLE);
SCU_APBPeriphReset(__GPIO7,DISABLE);
SCU->GPIOTYPE[0x07] = 0x0000;
SCU->GPIOOUT[0x07] = 0x0000;
SCU->GPIOIN[0x07] = 0x0000;
}
if(GPIOx == GPIO8)
{
SCU_APBPeriphReset(__GPIO8,ENABLE);
SCU_APBPeriphReset(__GPIO8,DISABLE);
SCU->GPIOTYPE[0x08] = 0x0000;
SCU->GPIOEMI = 0x00;
}
if(GPIOx == GPIO9)
{
SCU_APBPeriphReset(__GPIO9,ENABLE);
SCU_APBPeriphReset(__GPIO9,DISABLE);
SCU->GPIOTYPE[0x09] = 0x0000;
SCU->GPIOEMI = 0x00;
}
}
/*******************************************************************************
* Function Name : GPIO_Init
* Description : Initializes the GPIOx peripheral according to the specified
* parameters in the GPIO_InitStruct .
* Input :- GPIOx: where x can be (0..9) to select the GPIO peripheral.
* - GPIO_InitStruct: pointer to a GPIO_InitTypeDef structure that
* contains the configuration information for the specified GPIO
* peripheral.
* Output : None
* Return : None
*******************************************************************************/
void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct)
{
/* Select pin direction */
u8 PinNumber = 0;
u8 Counter = 0;
u8 GPIO_Number = 0;
GPIO_Number = GPIO_GetGPIONumber(GPIOx);
if(GPIO_InitStruct->GPIO_Direction == GPIO_PinOutput)
{
GPIOx->DDR |= GPIO_InitStruct->GPIO_Pin;
}
else
{
GPIOx->DDR &= ~GPIO_InitStruct->GPIO_Pin;
}
for (Counter = 0; Counter < 8;Counter++)
{
/*Search pin number*/
PinNumber = (GPIO_InitStruct->GPIO_Pin & (1 <<Counter));
if((PinNumber >> Counter) == 1)
{
if (GPIO_Number < 8)
{
/*Output ALternate 0*/
SCU->GPIOOUT[GPIO_Number] &= ~(0x3 <<(Counter *2));
if(GPIO_InitStruct->GPIO_Alternate == GPIO_OutputAlt1)
{
/*Output ALternate 1*/
SCU->GPIOOUT[GPIO_Number] |= 1 << (Counter *2);
}
if(GPIO_InitStruct->GPIO_Alternate == GPIO_OutputAlt2)
{
/*Output ALternate 2*/
SCU->GPIOOUT[GPIO_Number] |= 0x2 << (Counter *2);
}
if(GPIO_InitStruct->GPIO_Alternate == GPIO_OutputAlt3)
{
/*Output ALternate 3*/
SCU->GPIOOUT[GPIO_Number] |= 0x3 << (Counter *2);
}
/*IP Connected disable*/
SCU->GPIOIN[GPIO_Number] &= ~(0x1 << Counter) ;
if(GPIO_InitStruct->GPIO_IPInputConnected == GPIO_IPInputConnected_Enable)
{
/*IP Connected enable*/
SCU->GPIOIN[GPIO_Number] |= 0x1 << Counter;
}
}
/*Type configuration: PushPull or Open Collector*/
SCU->GPIOTYPE[GPIO_Number] &= ~(0x1 << Counter) ;
if(GPIO_InitStruct->GPIO_Type == GPIO_Type_OpenCollector)
{
/*Open Drain configuration*/
SCU->GPIOTYPE[GPIO_Number] |= 0x1 << Counter;
}
}
}
}
/*******************************************************************************
* Function Name : GPIO_StructInit
* Description : Initialize the GPIO Init Structure parameters
* Input : GPIO_InitStruct : pointer to a GPIO_InitTypeDef structure
* which will be initialized.
* Output : None
* Return : None
*******************************************************************************/
void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct)
{
/* Reset GPIO init structure parameters values */
GPIO_InitStruct->GPIO_Pin = GPIO_Pin_All;
GPIO_InitStruct->GPIO_Direction = GPIO_PinInput;
GPIO_InitStruct->GPIO_IPInputConnected = GPIO_IPInputConnected_Disable;
GPIO_InitStruct->GPIO_Alternate = GPIO_InputAlt1;
}
/*******************************************************************************
* Function Name : GPIO_ReadBit
* Description : Reads the specified port pin
* Input : - GPIOx: where x can be (0..9) to select the GPIO peripheral.
* : - GPIO_Pin: the Pin number. This parameter can be GPIO_Pin_x
* where x can be (0..7).
* Output : None
* Return : The port pin value
*******************************************************************************/
u8 GPIO_ReadBit(GPIO_TypeDef* GPIOx, u8 GPIO_Pin)
{
if ((((GPIOx->DR[GPIO_Pin<<2])) & GPIO_Pin) != Bit_RESET )
{
return Bit_SET;
}
else
{
return Bit_RESET;
}
}
/*******************************************************************************
* Function Name : GPIO_Read
* Description : Reads the specified GPIO data port
* Input : - GPIOx: where x can be (0..9) to select the GPIO peripheral.
* Output : None
* Return : GPIO data port word value.
*******************************************************************************/
u8 GPIO_Read(GPIO_TypeDef* GPIOx)
{
return (GPIOx->DR[0x3FC]);
}
/*******************************************************************************
* Function Name : GPIO_WriteBit
* Description : Sets or clears the selected data port bit.
* Input : - GPIOx: where x can be (0..9) to select the GPIO peripheral.
* - GPIO_Pin: the Pin number. This parameter can be GPIO_Pin_x
* where x can be (0..7).
* - BitVal: this parameter specifies the value to be written
* to the selected bit.
* BitVal must be one of the BitAction enum values:
* - Bit_RESET: to clear the port pin
* - Bit_SET: to set the port pin
* Output : None
* Return : None
*******************************************************************************/
void GPIO_WriteBit(GPIO_TypeDef* GPIOx, u8 GPIO_Pin, BitAction BitVal)
{
if(BitVal == Bit_SET)
{
GPIOx->DR[GPIO_Pin <<2] = GPIO_Pin;
}
else
{
GPIOx->DR[GPIO_Pin <<2] = 0x00;
}
}
/*******************************************************************************
* Function Name : GPIO_Write
* Description : Writes the passed value in the selected data GPIOx port
* register.
* Input :- GPIOx: where x can be (0..9) to select the GPIO peripheral.
* - PortVal: the value to be written to the data port register.
* Output : None
* Return : None
*******************************************************************************/
void GPIO_Write(GPIO_TypeDef* GPIOx, u8 PortVal)
{
GPIOx->DR[0x3FC] = PortVal;
}
/*******************************************************************************
* Function Name : GPIO_EMIConfig
* Description : Enables or disables GPIO 8 and 9 in EMI mode.
* Input : - NewState: new state of the EMI.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void GPIO_EMIConfig(FunctionalState NewState)
{
if(NewState == ENABLE)
{
SCU->GPIOEMI = 0x01;
}
else
{
SCU->GPIOEMI = 0x00;
}
}
/*******************************************************************************
* Function Name : GPIO_ANAPinConfig
* Description : Enables or disables pins from GPIO 4 in Analogue mode.
* Input :- GPIO_ANAChannel: selects the ADC channel pin.
* This parameter can be one of the following values:
* GPIO_ANAChannel0
* GPIO_ANAChannel1
* GPIO_ANAChannel2
* GPIO_ANAChannel3
* GPIO_ANAChannel4
* GPIO_ANAChannel5
* GPIO_ANAChannel6
* GPIO_ANAChannel7
* GPIO_ANAChannelALL
* - NewState: new state of the port pin.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void GPIO_ANAPinConfig(u8 GPIO_ANAChannel, FunctionalState NewState)
{
if(NewState == ENABLE)
{
SCU->GPIOOUT[4] &= GPIO_GetAnaloClearBits(GPIO_ANAChannel);
SCU->GPIOIN[4] &= ~GPIO_ANAChannel;
SCU->GPIOANA |= GPIO_ANAChannel;
}
else
{
SCU->GPIOANA &= ~GPIO_ANAChannel;
}
}
/*******************************************************************************
* Function Name : GPIO_GetGPIONumber
* Description : searche the GPIO number.
* Input : GPIOx: where x can be (0..9) to select the GPIO peripheral.
* Output : None
* Return : GPIO number
*******************************************************************************/
u8 GPIO_GetGPIONumber(GPIO_TypeDef* GPIOx)
{
if(GPIOx == GPIO1)
{
return 1;
}
if(GPIOx == GPIO2)
{
return 2;
}
if(GPIOx == GPIO3)
{
return 3;
}
if(GPIOx == GPIO4)
{
return 4;
}
if(GPIOx == GPIO5)
{
return 5;
}
if(GPIOx == GPIO6)
{
return 6;
}
if(GPIOx == GPIO7)
{
return 7;
}
if(GPIOx == GPIO8)
{
return 8;
}
if(GPIOx == GPIO9)
{
return 9;
}
return 0;
}
/*******************************************************************************
* Function Name : GPIO_GetAnaloClearBits
* Description : Clear the corresponding bits in the SCU_OUT register.
* Input : GPIO_ANAChannel: selects the ADC channel pin.
* This parameter can be one of the following values:
* GPIO_ANAChannel0
* GPIO_ANAChannel1
* GPIO_ANAChannel2
* GPIO_ANAChannel3
* GPIO_ANAChannel4
* GPIO_ANAChannel5
* GPIO_ANAChannel6
* GPIO_ANAChannel7
* GPIO_ANAChannelALL
* Output : None
* Return : reset value in SCU_OUT register
*******************************************************************************/
u16 GPIO_GetAnaloClearBits(u8 GPIO_ANAChannel)
{
if(GPIO_ANAChannel == GPIO_ANAChannel0)
{
return 0xFFFC;
}
if(GPIO_ANAChannel == GPIO_ANAChannel1)
{
return 0xFFF3;
}
if(GPIO_ANAChannel == GPIO_ANAChannel2)
{
return 0xFFCF;
}
if(GPIO_ANAChannel == GPIO_ANAChannel3)
{
return 0xFF3F;
}
if(GPIO_ANAChannel == GPIO_ANAChannel4)
{
return 0xFCFF;
}
if(GPIO_ANAChannel == GPIO_ANAChannel5)
{
return 0xF3FF;
}
if(GPIO_ANAChannel == GPIO_ANAChannel6)
{
return 0xCFFF;
}
if(GPIO_ANAChannel == GPIO_ANAChannel7)
{
return 0x3FFF;
}
/*Default vaule: return GPIO_ANAChannelALL*/
return 0x0000;
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_i2c.c
0,0 → 1,615
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_i2c.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the I2C firmware functions.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "91x_i2c.h"
#include "91x_scu.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* I2C IT enable */
#define I2C_IT_Enable 0x01
#define I2C_IT_Disable 0xFE
/* I2C Peripheral Enable/Disable */
#define I2C_PE_Set 0x20
#define I2C_PE_Reset 0xDF
/* Address direction bit */
#define I2C_ADD0_Set 0x01
#define I2C_ADD0_Reset 0xFE
/* I2C START Enable/Disable */
#define I2C_Start_Enable 0x08
#define I2C_Start_Disable 0xF7
/* I2C STOP Enable/Disable */
#define I2C_Stop_Enable 0x02
#define I2C_Stop_Disable 0xFD
/* I2C Masks */
#define I2C_Frequency_Mask 0x1F
#define I2C_AddressHigh_Mask 0xF9
#define I2C_OwnAddress_Mask 0x0300
#define I2C_StandardMode_Mask 0x7f
#define I2C_FastMode_Mask 0x80
#define I2C_Event_Mask 0x3FFF
#define I2C_HeaderSet_Mask 0xF1
#define I2C_HeaderReset_Mask 0xFE
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : I2C_DeInit
* Description : Deinitializes the I2C peripheral registers to their default
* reset values.
* Input :- I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
* Output : None
* Return : None
*******************************************************************************/
void I2C_DeInit(I2C_TypeDef* I2Cx)
{
if (I2Cx == I2C0)
{
/* Reset the I2C0 registers values */
SCU_APBPeriphReset(__I2C0, ENABLE);
SCU_APBPeriphReset(__I2C0, DISABLE);
}
if (I2Cx == I2C1)
{
/* Reset the I2C1 registers values */
SCU_APBPeriphReset(__I2C1, ENABLE);
SCU_APBPeriphReset(__I2C1, DISABLE);
}
}
/*******************************************************************************
* Function Name : I2C_Init
* Description : Initializes the I2C peripheral according to the specified
* parameters in the I2C_InitTypeDef structure.
* Input :- I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
*
* - I2C_InitStruct: pointer to an I2C_InitTypeDef structure that
* contains the configuration information for the specified I2C
* peripheral.
* Output : None
* Return : None
*******************************************************************************/
void I2C_Init(I2C_TypeDef* I2Cx, I2C_InitTypeDef* I2C_InitStruct)
{
u16 wResult = 0x0F;
u32 dPCLK = 25000000;
/* Get PCLK frequency value */
dPCLK = SCU_GetPCLKFreqValue()*1000;
/* Disable I2C peripheral to set FR[2:0] bits */
I2C_Cmd (I2Cx, DISABLE);
/* Clear frequency FR[2:0] bits */
I2Cx->OAR2 &= I2C_Frequency_Mask;
/* Set frequency bits depending on PCLK value */
if ((dPCLK <1667000) & (dPCLK > 10000000))
I2Cx->OAR2 |= 0x20;
else if (dPCLK < 26670000)
I2Cx->OAR2 |= 0x40;
else if (dPCLK < 40000000)
I2Cx->OAR2 |= 0x60;
else if (dPCLK < 53330000)
I2Cx->OAR2 |= 0x80;
else if (dPCLK < 66000000)
I2Cx->OAR2 |= 0xA0;
else if (dPCLK < 80000000)
I2Cx->OAR2 |= 0xC0;
else if (dPCLK < 100000000)
I2Cx->OAR2 |= 0xE0;
I2C_Cmd (I2Cx, ENABLE);
/* Configure general call */
if (I2C_InitStruct->I2C_GeneralCall == I2C_GeneralCall_Enable)
{
/* Enable general call */
I2Cx->CR |= I2C_GeneralCall_Enable;
}
else
{
/* Disable general call */
I2Cx->CR &= I2C_GeneralCall_Disable;
}
/* Configure acknowledgement */
if (I2C_InitStruct->I2C_Ack == I2C_Ack_Enable)
{
/* Enable acknowledgement */
I2Cx->CR |= I2C_Ack_Enable;
}
else
{
/* Disable acknowledgement */
I2Cx->CR &= I2C_Ack_Disable;
}
/* Configure LSB own address */
I2Cx->OAR1 = I2C_InitStruct->I2C_OwnAddress;
/* Clear MSB own address ADD[9:8] bits */
I2Cx->OAR2 &= I2C_AddressHigh_Mask;
/* Set MSB own address value */
I2Cx->OAR2 |= (I2C_InitStruct->I2C_OwnAddress & I2C_OwnAddress_Mask)>>7;
/* Configure speed in standard mode */
if (I2C_InitStruct->I2C_CLKSpeed <= 100000)
{
/* Standard mode speed calculate */
wResult = ((dPCLK/I2C_InitStruct->I2C_CLKSpeed)-7)/2;
/* Set speed value and clear FM/SM bit for standard mode in LSB clock divider */
I2Cx->CCR = wResult & I2C_StandardMode_Mask;
}
/* Configure speed in fast mode */
else if (I2C_InitStruct->I2C_CLKSpeed <= 400000)
{
/* Fast mode speed calculate */
wResult = ((dPCLK/I2C_InitStruct->I2C_CLKSpeed)-9)/3;
/* Set speed value and set FM/SM bit for fast mode in LSB clock divider */
I2Cx->CCR = wResult | I2C_FastMode_Mask;
}
/* Set speed in MSB clock divider */
I2Cx->ECCR = wResult >>7;
}
/*******************************************************************************
* Function Name : I2C_StructInit
* Description : Initialize the I2C Init Structure parameters
* Input : - I2C_InitStruct: pointer to an I2C_InitTypeDef structure
which will be initialized.
* Output : None
* Return : None.
*******************************************************************************/
void I2C_StructInit(I2C_InitTypeDef* I2C_InitStruct)
{
/* Initialize the I2C_CLKSpeed member */
I2C_InitStruct->I2C_CLKSpeed = 5000;
/* Initialize the I2C_OwnAddress member */
I2C_InitStruct->I2C_OwnAddress = 0x0;
/* Initialize the I2C_GeneralCall member */
I2C_InitStruct->I2C_GeneralCall = I2C_GeneralCall_Disable;
/* Initialize the I2C_Ack member */
I2C_InitStruct->I2C_Ack = I2C_Ack_Disable;
}
/*******************************************************************************
* Function Name : I2C_Cmd
* Description : Enables or disables the specified I2C peripheral.
* Input :- I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
* - NewState: new state of the I2C peripheral. This parameter
* can be: ENABLE or DISABLE.
* Output : None
* Return : None.
*******************************************************************************/
void I2C_Cmd(I2C_TypeDef* I2Cx, FunctionalState NewState)
{
if (NewState == ENABLE)
{
/* Enable the I2C peripheral by setting twice the PE bit on the CR register */
I2Cx->CR |= I2C_PE_Set;
I2Cx->CR |= I2C_PE_Set;
}
else
{
/* Disable the I2C peripheral */
I2Cx->CR &= I2C_PE_Reset;
}
}
/*******************************************************************************
* Function Name : I2C_GenerateSTART
* Description : Generates I2C communication START condition.
* Input :- I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
*
* - NewState: new state of the Start condition. This parameter
* can be: ENABLE or DISABLE.
* Output : None
* Return : None.
*******************************************************************************/
void I2C_GenerateStart(I2C_TypeDef* I2Cx, FunctionalState NewState)
{
if (NewState == ENABLE)
{
/* Generate a START condition */
I2Cx->CR |= I2C_Start_Enable;
}
else
{
/* Disable the START condition generation */
I2Cx->CR &= I2C_Start_Disable;
}
}
/*******************************************************************************
* Function Name : I2C_GenerateSTOP
* Description : Generates I2C communication STOP condition.
* Input :- I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
*
* - NewState: new state of the Stop condition. This parameter
* can be: ENABLE or DISABLE.
* Output : None
* Return : None.
*******************************************************************************/
void I2C_GenerateSTOP(I2C_TypeDef* I2Cx, FunctionalState NewState)
{
if (NewState == ENABLE)
{
/* Generate a SIOP condition */
I2Cx->CR |= I2C_Stop_Enable;
}
else
{
/* Disable the STOP condition generation */
I2Cx->CR &= I2C_Stop_Disable;
}
}
/*******************************************************************************
* Function Name : I2C_AcknowledgeConfig
* Description : Enables or disables I2C acknowledge feature.
* Input :- I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
* - NewState: new state of the Acknowledgement. This parameter
* can be: ENABLE or DISABLE.
* Output : None
* Return : None.
*******************************************************************************/
void I2C_AcknowledgeConfig(I2C_TypeDef *I2Cx, FunctionalState NewState)
{
if (NewState == ENABLE)
{
/* Enable the acknowledgement */
I2Cx->CR |= I2C_Ack_Enable;
}
else
{
/* Disable the acknowledgement */
I2Cx->CR &= I2C_Ack_Disable;
}
}
/*******************************************************************************
* Function Name : I2C_ITConfig
* Description : Enables or disables I2C interrupt feature.
* Input :- I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
* - NewState: new state of the specified I2C interrupt.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None.
*******************************************************************************/
void I2C_ITConfig(I2C_TypeDef *I2Cx, FunctionalState NewState)
{
if (NewState == ENABLE)
{
/* Enable the I2C interrupt */
I2Cx->CR |= I2C_IT_Enable;
}
else
{
/* Disable the I2C interrupt */
I2Cx->CR &= I2C_IT_Disable;
}
}
/*******************************************************************************
* Function Name : I2C_ReadRegister
* Description : Reads any I2C register and returns its value.
* Input :- I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
* - I2C_Register: the I2C register to be read. This parameter
* can be one of the following values:
* - I2C_CR: CR register.
* - I2C_SR1: SR1 register.
* - I2C_SR2: SR2 register.
* - I2C_CCR: CCR register.
* - I2C_OAR1: OAR1 register.
* - I2C_OAR2: OAR2 register.
* - I2C_DR: DR register.
* - I2C_ECCR: ECCR register.
* Output : None
* Return : The value of the register passed as parameter
*******************************************************************************/
u8 I2C_ReadRegister(I2C_TypeDef* I2Cx, u8 I2C_Register)
{
/* Return the selected register value */
if (I2Cx == I2C0)
{
return (*(u8 *)(I2C0_BASE + I2C_Register));
}
if (I2Cx == I2C1)
{
return (*(u8 *)(I2C1_BASE + I2C_Register));
}
return 0;
}
/*******************************************************************************
* Function Name : I2C_GetFlagStatus
* Description : Checks whether the specified I2C flag is set or not.
* Input :- I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
* - I2C_FLAG: flag to check. This parameter can be one of the
* following values:
* - I2C_FLAG_SB: Start bit flag
* - I2C_FLAG_M_SL: Master/Slave flag
* - I2C_FLAG_ADSL: Adress matched flag
* - I2C_FLAG_BTF: Byte transfer finished flag
* - I2C_FLAG_BUSY: Bus busy flag
* - I2C_FLAG_TRA: Transmitter/Receiver flag
* - I2C_FLAG_ADD10: 10-bit addressing in Master mode flag
* - I2C_FLAG_EVF: Event flag
* - I2C_FLAG_GCAL: General call flag
* - I2C_FLAG_BERR: Bus error flag
* - I2C_FLAG_ARLO: Arbitration lost flag
* - I2C_FLAG_STOPF: Stop detection flag
* - I2C_FLAG_AF: Acknowledge failure flag
* - I2C_FLAG_ENDAD: End of address transmission flag
* - I2C_FLAG_ACK: Acknowledge enable flag
* Output : None
* Return : The NewState of the I2C_Flag (SET or RESET).
*******************************************************************************/
FlagStatus I2C_GetFlagStatus(I2C_TypeDef* I2Cx, u16 I2C_FLAG)
{
u16 wFlag1=0, wFlag2=0, wTmp=0;
wFlag1 = I2Cx->SR2;
wFlag1 = wFlag1<<8;
wFlag2 = I2Cx->CR & 0x04;
/* Get all the I2C flags in a unique register*/
wTmp = (((I2Cx->SR1 | (wFlag1)) & I2C_Event_Mask) | (wFlag2<<12));
/* Check the status of the specified I2C flag */
if((wTmp & I2C_FLAG) != RESET)
{
/* Return SET if I2C_FLAG is set */
return SET;
}
else
{
/* Return RESET if I2C_FLAG is reset */
return RESET;
}
}
/*******************************************************************************
* Function Name : I2C_ClearFlag
* Description : Clears the I2C Flag passed as a parameter
* Input :- I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
* - I2C_FLAG: flag to check. This parameter can be one of the
* following values:
* - I2C_FLAG_SB: Start bit flag
* - I2C_FLAG_M_SL: Master/Slave flag
* - I2C_FLAG_ADSL: Adress matched flag
* - I2C_FLAG_BTF: Byte transfer finished flag
* - I2C_FLAG_BUSY: Bus busy flag
* - I2C_FLAG_TRA: Transmitter/Receiver flag
* - I2C_FLAG_ADD10: 10-bit addressing in Master mode flag
* - I2C_FLAG_EVF: Event flag
* - I2C_FLAG_GCAL: General call flag
* - I2C_FLAG_BERR: Bus error flag
* - I2C_FLAG_ARLO: Arbitration lost flag
* - I2C_FLAG_STOPF: Stop detection flag
* - I2C_FLAG_AF: Acknowledge failure flag
* - I2C_FLAG_ENDAD: End of address transmission flag
* - I2C_FLAG_ACK: Acknowledge enable flag
* - parameter needed in the case that the flag to be cleared
* need a write in one register
* Output : None
* Return : None.
*******************************************************************************/
void I2C_ClearFlag(I2C_TypeDef* I2Cx, u16 I2C_FLAG, ...)
{
u8 bTmp = (u8)*((u32 *) & I2C_FLAG + sizeof(I2C_FLAG));
/* flags that need a read of the SR2 register to be cleared */
if ((I2C_FLAG==I2C_FLAG_ADD10) || (I2C_FLAG==I2C_FLAG_EVF) || (I2C_FLAG==I2C_FLAG_BERR) || (I2C_FLAG==I2C_FLAG_ARLO) |
(I2C_FLAG==I2C_FLAG_STOPF) ||(I2C_FLAG==I2C_FLAG_AF) || (I2C_FLAG==I2C_FLAG_ENDAD))
{
/* Read the SR2 register */
I2Cx->SR2;
/* Two flags need a second step to be cleared */
switch (I2C_FLAG)
{
case I2C_FLAG_ADD10:
/* Send the MSB 10bit address passed as second parameter */
I2Cx->DR = bTmp;
break;
case I2C_FLAG_ENDAD:
/* Write to the I2C_CR register by setting PE bit */
I2Cx->CR |= I2C_PE_Set;
break;
}
}
/* flags that need a read of the SR1 register to be cleared */
else if (I2C_FLAG==I2C_FLAG_SB || I2C_FLAG==I2C_FLAG_ADSL || I2C_FLAG==I2C_FLAG_BTF || I2C_FLAG==I2C_FLAG_TRA)
{
/* Read the SR1 register */
(void)I2Cx->SR1;
/* three flags need a second step to be cleared */
if (I2C_FLAG == I2C_FLAG_SB)
{
/* Send the address byte passed as second parameter */
I2Cx->DR = bTmp;
}
else if (I2C_FLAG==I2C_FLAG_BTF || I2C_FLAG==I2C_FLAG_TRA)
{
/* return the received byte in the variable passed as second parameter */
bTmp=I2Cx->DR;
}
}
/* flags that need to disable the I2C interface */
else if ( I2C_FLAG==I2C_FLAG_M_SL || I2C_FLAG==I2C_FLAG_GCAL)
{
I2C_Cmd(I2Cx, DISABLE);
I2C_Cmd(I2Cx, ENABLE);
}
}
/*******************************************************************************
* Function Name : I2C_Send7bitAddress
* Description : Transmits the address byte to select the slave device.
* Input :- I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
* - Address: specifies the slave address which will be transmitted
* - Direction: specifies whether the I2C device will be a
* Transmitter or a Receiver. This parameter can be one of the
* following values
* - I2C_MODE_TRANSMITTER: Transmitter mode
* - I2C_MODE_RECEIVER: Receiver mode
* Output : None
* Return : None.
*******************************************************************************/
void I2C_Send7bitAddress(I2C_TypeDef* I2Cx, u8 Address, u8 Direction)
{
/* Test on the direction to define the read/write bit */
if (Direction == I2C_MODE_RECEIVER)
{
/* Set the address bit0 for read */
Address |= I2C_ADD0_Set;
}
else
{
/* Reset the address bit0 for write */
Address &= I2C_ADD0_Reset;
}
/* Send the address */
I2Cx->DR = Address;
}
/*******************************************************************************
* Function Name : I2C_SendData
* Description : Send a data byte.
* Input :- I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
* - bData : the byte to be sent
* Output : None
* Return : None.
*******************************************************************************/
void I2C_SendData(I2C_TypeDef* I2Cx, u8 bData)
{
/* Write in the DR register the byte to be sent */
I2Cx->DR = bData;
}
/*******************************************************************************
* Function Name : I2C_ReceiveData
* Description : Read the received byte.
* Input : - I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
* Output : None
* Return : The received byte
*******************************************************************************/
u8 I2C_ReceiveData(I2C_TypeDef* I2Cx)
{
/* Return from the DR register the received byte */
return I2Cx->DR;
}
/*******************************************************************************
* Function Name : I2C_GetLastEvent
* Description : Get the Last happened I2C Event.
* Input :- I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
* Output : None
* Return : The Last happened Event.
*******************************************************************************/
u16 I2C_GetLastEvent(I2C_TypeDef* I2Cx)
{
u16 wFlag1=0, wFlag2 =0, wLastEvent=0;
wFlag2 = I2Cx->SR1;
wFlag1 = I2Cx->SR2;
wFlag1 = wFlag1<<8;
/* Get the last event value from I2C status register */
wLastEvent = ((( wFlag2 | (wFlag1)) & I2C_Event_Mask));
/* Return the last event */
return wLastEvent;
}
/*******************************************************************************
* Function Name : I2C_CheckEvent
* Description : Checks whether the Last I2C Event is equal to the one passed
* as parameter.
* Input :- I2Cx: I2C peripheral can be:
* - I2C0
* - I2C1
* - I2C_EVENT: the event to check. This parameter can be one of
* the following values:
* - I2C_EVENT_SLAVE_ADDRESS_MATCHED
* - I2C_EVENT_SLAVE_BYTE_RECEIVED
* - I2C_EVENT_SLAVE_BYTE_TRANSMITTED
* - I2C_EVENT_MASTER_MODE_SELECT
* - I2C_EVENT_MASTER_MODE_SELECTED
* - I2C_EVENT_MASTER_BYTE_RECEIVED
* - I2C_EVENT_MASTER_BYTE_TRANSMITTED
* - I2C_EVENT_MASTER_MODE_ADDRESS10
* - I2C_EVENT_SLAVE_STOP_DETECTED
* - I2C_EVENT_SLAVE_ACK_FAILURE
- I2C_EV31
* Output : None
* Return : An ErrorStatus enumuration value:
* - SUCCESS: Last event is equal to the I2C_Event
* - ERROR: Last event is different from the I2C_Event
*******************************************************************************/
ErrorStatus I2C_CheckEvent(I2C_TypeDef* I2Cx,u16 I2C_EVENT)
{
u16 wLastEvent = I2C_GetLastEvent(I2Cx);
/* Check whther the last event is equal to I2C_EVENT */
if (wLastEvent == I2C_EVENT)
{
/* Return SUCCESS when last event is equal to I2C_EVENT */
return SUCCESS;
}
else
{
/* Return ERROR when last event is different from I2C_EVENT */
return ERROR;
}
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_it.c
0,0 → 1,496
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_it.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : Main Interrupt Service Routines.
* This file can be used to describe all the exceptions
* subroutines that may occur within user application.
* When an interrupt happens, the software will branch
* automatically to the corresponding routine.
* The following routines are all empty, user can write code
* for exceptions handlers and peripherals IRQ interrupts.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "91x_it.h"
#include "fat16.h"
#include "main.h"
#include "uart1.h"
#include "stdio.h"
extern void USB_Istr(void);
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : Undefined_Handler
* Description : This function Undefined instruction exception.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void Undefined_Handler(void) __attribute__ ((naked));
void Undefined_Handler(void)
{
UART1_PutString("\n\rUndefined Instrution");
while(1)
{
// infinite loop
}
}
/*******************************************************************************
* Function Name : SWI_Handler
* Description : This function handles SW exception.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void SWI_Handler(void)
{
}
/*******************************************************************************
* Function Name : Prefetch_Handler
* Description : This function handles preftetch abort exception.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void Prefetch_Handler(void) __attribute__ ((naked));
void Prefetch_Handler(void)
{
register u_long *lnk_ptr;
__asm__ __volatile__
(
"sub lr, lr, #0\n"
"mov %0, lr" : "=r" (lnk_ptr)
);
u8 text[100];
sprintf(text, "\n\rPrefetch Abort at %p 0x%08lX\n", lnk_ptr, *(lnk_ptr));
UART1_PutString(text);
while(1)
{
// infinite loop
}
}
/*******************************************************************************
* Function Name : Abort_Handler
* Description : This function handles data abort exception.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void Abort_Handler(void) __attribute__ ((naked));
void Abort_Handler(void)
{
register u_long *lnk_ptr;
__asm__ __volatile__
(
"sub lr, lr, #8\n"
"mov %0, lr" : "=r" (lnk_ptr)
);
u8 text[100];
sprintf(text, "\n\rData Abort at %p 0x%08lX\n", lnk_ptr, *(lnk_ptr));
UART1_PutString(text);
while(1)
{
// infinite loop
}
}
/*******************************************************************************
* Function Name : FIQ_Handler
* Description : This function handles FIQ exception.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void FIQ_Handler(void)
{
}
/*******************************************************************************
* Function Name : WDG_IRQHandler
* Description : This function handles the WDG interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void WDG_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : SW_IRQHandler
* Description : This function handles the SW interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void SW_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : ARMRX_IRQHandler
* Description : This function handles the ARMRX interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void ARMRX_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : ARMTX_IRQHandler
* Description : This function handles the ARMTX interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void ARMTX_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : TIM0_IRQHandler
* Description : This function handles the TIM0 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void TIM0_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : TIM1_IRQHandler
* Description : This function handles the TIM1 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
/*
void TIM1_IRQHandler(void)
{
}
*/
/*******************************************************************************
* Function Name : TIM2_IRQHandler
* Description : This function handles the TIM2 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
/*
void TIM2_IRQHandler(void)
{
}
*/
/*******************************************************************************
* Function Name : TIM3_IRQHandler
* Description : This function handles the TIM3 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void TIM3_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : USBHP_IRQHandler
* Description : This function handles the USBHP interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void USBHP_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : USBLP_IRQHandler
* Description : This function handles the USBLP interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void USBLP_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : SCU_IRQHandler
* Description : This function handles the SCU interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void SCU_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : ENET_IRQHandler
* Description : This function handles the DENET interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void ENET_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : DMA_IRQHandler
* Description : This function handles the DMA interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void DMA_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : CAN_IRQHandler
* Description : This function handles the CAN interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void CAN_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : MC_IRQHandler
* Description : This function handles the MC interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void MC_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : ADC_IRQHandler
* Description : This function handles the ADC interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
/*
void ADC_IRQHandler(void)
{
}
*/
/*******************************************************************************
* Function Name : UART0_IRQHandler
* Description : This function handles the UART0 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
/*
void UART0_IRQHandler(void)
{
}
*/
/*******************************************************************************
* Function Name : UART1_IRQHandler
* Description : This function handles the UART1 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
/*
void UART1_IRQHandler(void)
{
}
*/
/*******************************************************************************
* Function Name : UART2_IRQHandler
* Description : This function handles the UART2 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
/*
void UART2_IRQHandler(void)
{
}
*/
/*******************************************************************************
* Function Name : I2C0_IRQHandler
* Description : This function handles the I2C0 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
/*
void I2C0_IRQHandler(void)
{
}
*/
/*******************************************************************************
* Function Name : I2C1_IRQHandler
* Description : This function handles the I2C1 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
/*
void I2C1_IRQHandler(void)
{
}
*/
/*******************************************************************************
* Function Name : SSP0_IRQHandler
* Description : This function handles the SSP0 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
/*
void SSP0_IRQHandler(void)
{
}
*/
/*******************************************************************************
* Function Name : SSP1_IRQHandler
* Description : This function handles the SSP1 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void SSP1_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : LVD_IRQHandler
* Description : This function handles the LVD interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void LVD_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : RTC_IRQHandler
* Description : This function handles the RTC interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void RTC_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : WIU_IRQHandler
* Description : This function handles the WIU interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void WIU_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : EXTIT0_IRQHandler
* Description : This function handles the EXTIT0 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void EXTIT0_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : EXTIT1_IRQHandler
* Description : This function handles the EXTIT1 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void EXTIT1_IRQHandler(void)
{
IENABLE;
if(WIU_GetITStatus(WIU_Line11) != RESET)
{
// BeepTime = 100;
// Fat16_Init(); // initialize sd-card file system.
WIU_ClearFlag(WIU_Line1);
WIU_ClearITPendingBit(WIU_Line11);
}
IDISABLE;
}
/*******************************************************************************
* Function Name : EXTIT2_IRQHandler
* Description : This function handles the EXTIT2 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void EXTIT2_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : EXTIT3_IRQHandler
* Description : This function handles the EXTIT3 interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
/*
void EXTIT3_IRQHandler(void)
{
}
*/
/*******************************************************************************
* Function Name : USBWU_IRQHandler
* Description : This function handles the USBWU interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void USBWU_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : PFQBC_IRQHandler
* Description : This function handles the PFQBC interrupt request
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void PFQBC_IRQHandler(void)
{
}
/*******************************************************************************
* Function Name : Dummy_Handler
* Description : This function is used for handling a case of spurious interrupt
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void DefaultVector_Handler(void)
{
/* Write any value to VICs */
VIC0->VAR = 0xFF;
VIC1->VAR = 0xFF;
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_lib.c
0,0 → 1,281
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_lib.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all peripherals pointers
* : initialization.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH
* CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS
* A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
* OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
* OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
* CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
#define EXT
/* Standard include ----------------------------------------------------------*/
#include "91x_lib.h"
/* Include of other module interface headers ---------------------------------*/
/* Local includes ------------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Interface functions -------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
#ifdef DEBUG
/*******************************************************************************
* Function Name : debug
* Description : this function initialize peripherals pointers
* Input : no one
* Output : no one
* Return : no one
*******************************************************************************/
void debug(void)
{
/************************* DMA *************************/
#ifdef _DMA
DMA = (DMA_TypeDef *)DMA_BASE;
#endif /* _DMA */
/************************* DMA *************************/
#ifdef _DMA_Channel0
DMA_Channel0= (DMA_Channel_TypeDef *)DMA_Channel0_BASE;
#endif /* _DMA_Channel0 */
#ifdef _DMA_Channel1
DMA_Channel1= (DMA_Channel_TypeDef *)DMA_Channel1_BASE;
#endif /* _DMA_Channel1 */
#ifdef _DMA_Channel2
DMA_Channel2 = (DMA_Channel_TypeDef *)DMA_Channel2_BASE;
#endif /* _DMA_Channel2 */
#ifdef _DMA_Channel3
DMA_Channel3 = (DMA_Channel_TypeDef *)DMA_Channel3_BASE;
#endif /* _DMA_Channel3 */
#ifdef _DMA_Channel4
DMA_Channel4 = (DMA_Channel_TypeDef *)DMA_Channel4_BASE;
#endif /* _DMA_Channel4 */
#ifdef _DMA_Channel5
DMA_Channel5= (DMA_Channel_TypeDef *)DMA_Channel5_BASE;
#endif /* _DMA_Channel5*/
#ifdef _DMA_Channel6
DMA_Channel6 = (DMA_Channel_TypeDef *)DMA_Channel6_BASE;
#endif /* _DMA_Channel6 */
#ifdef _DMA_Channel7
DMA_Channel7 = (DMA_Channel_TypeDef *)DMA_Channel7_BASE;
#endif /* _DMA_Channel7 */
/************************* EMI *************************/
#ifdef _EMI
EMI_CCR =(vu32*)EMI_CCR_BASE;
#endif /*_EMI */
#ifdef _EMI_Bank0
EMI_Bank0= (EMI_Bank_TypeDef *)EMI_Bank0_BASE;
#endif /* _EMI_Bank0 */
#ifdef _EMI_Bank1
EMI_Bank1= (EMI_Bank_TypeDef *)EMI_Bank1_BASE;
#endif /* _EMI_Bank1 */
#ifdef _EMI_Bank2
EMI_Bank2 = (EMI_Bank_TypeDef *)EMI_Bank2_BASE;
#endif /* _EMI_Bank2 */
#ifdef _EMI_Bank3
EMI_Bank3 = (EMI_Bank_TypeDef *)EMI_Bank3_BASE;
#endif /* _EMI_Bank3 */
/************************* AHBAPB *************************/
#ifdef _AHBAPB0
AHBAPB0 = (AHBAPB_TypeDef *)AHBAPB0_BASE;
#endif /* _AHBAPB0 */
#ifdef _AHBAPB1
AHBAPB1 = (AHBAPB_TypeDef *)AHBAPB1_BASE;
#endif /*_AHBAPB1 */
/************************* FMI *************************/
#ifdef _FMI
FMI = (FMI_TypeDef *)FMI_BASE;
#endif /* _FMI */
/************************* VIC *************************/
#ifdef _VIC0
VIC0 = (VIC_TypeDef *)VIC0_BASE;
#endif /* _VIC0 */
#ifdef _VIC1
VIC1 = (VIC_TypeDef *)VIC1_BASE;
#endif /* _VIC1 */
/************************* WIU *************************/
#ifdef _WIU
WIU = (WIU_TypeDef *)WIU_BASE;
#endif /* _WIU */
/************************* TIM *************************/
#ifdef _TIM0
TIM0 = (TIM_TypeDef *)TIM0_BASE;
#endif /* _TIM0 */
#ifdef _TIM1
TIM1 = (TIM_TypeDef *)TIM1_BASE;
#endif /* _TIM1 */
#ifdef _TIM2
TIM2 = (TIM_TypeDef *)TIM2_BASE;
#endif /* _TIM2 */
#ifdef _TIM3
TIM3 = (TIM_TypeDef *)TIM3_BASE;
#endif /* _TIM3 */
/************************* GPIO ************************/
#ifdef _GPIO0
GPIO0 = (GPIO_TypeDef *)GPIO0_BASE;
#endif /* _GPIO0 */
#ifdef _GPIO1
GPIO1 = (GPIO_TypeDef *)GPIO1_BASE;
#endif /* _GPIO1 */
#ifdef _GPIO2
GPIO2 = (GPIO_TypeDef *)GPIO2_BASE;
#endif /* _GPIO2 */
#ifdef _GPIO3
GPIO3 = (GPIO_TypeDef *)GPIO3_BASE;
#endif /* _GPIO3 */
#ifdef _GPIO4
GPIO4 = (GPIO_TypeDef *)GPIO4_BASE;
#endif /* _GPIO4 */
#ifdef _GPIO5
GPIO5 = (GPIO_TypeDef *)GPIO5_BASE;
#endif /* _GPIO5 */
#ifdef _GPIO6
GPIO6 = (GPIO_TypeDef *)GPIO6_BASE;
#endif /* _GPIO6 */
#ifdef _GPIO7
GPIO7 = (GPIO_TypeDef *)GPIO7_BASE;
#endif /* _GPIO7 */
#ifdef _GPIO8
GPIO8 = (GPIO_TypeDef *)GPIO8_BASE;
#endif /* _GPIO8 */
#ifdef _GPIO9
GPIO9 = (GPIO_TypeDef *)GPIO9_BASE;
#endif /* _GPIO9 */
/************************* RTC *************************/
#ifdef _RTC
RTC = (RTC_TypeDef *)RTC_BASE;
#endif /* _RTC */
/************************* SCU ***********************/
#ifdef _SCU
SCU = (SCU_TypeDef *)SCU_BASE;
#endif /* _SCU */
/************************** MC *************************/
#ifdef _MC
MC = (MC_TypeDef *)MC_BASE;
#endif /* _MC */
/************************* UART ************************/
#ifdef _UART0
UART0 = (UART_TypeDef *)UART0_BASE;
#endif /* _UART0 */
#ifdef _UART1
UART1 = (UART_TypeDef *)UART1_BASE;
#endif /* _UART1 */
#ifdef _UART2
UART2 = (UART_TypeDef *)UART2_BASE;
#endif /* _UART2 */
/************************* SSP *************************/
#ifdef _SSP0
SSP0 = (SSP_TypeDef *)SSP0_BASE;
#endif /* _SSP0 */
#ifdef _SSP1
SSP1 = (SSP_TypeDef *)SSP1_BASE;
#endif /* _SSP1 */
/************************* CAN *************************/
#ifdef _CAN
CAN = (CAN_TypeDef *)CAN_BASE;
#endif /* _CAN */
/************************* ADC *************************/
#ifdef _ADC
ADC = (ADC_TypeDef *)ADC_BASE;
#endif /* _ADC */
/************************* WDG *************************/
#ifdef _WDG
WDG = (WDG_TypeDef *)WDG_BASE;
#endif /* _WDG */
/************************* I2C *************************/
#ifdef _I2C0
I2C0 = (I2C_TypeDef *)I2C0_BASE;
#endif /* _I2C0 */
#ifdef _I2C1
I2C1 = (I2C_TypeDef *)I2C1_BASE;
#endif /* _I2C1 */
/********************** ENET **************************/
#ifdef _ENET
ENET_MAC = (ENET_MAC_TypeDef *)ENET_MAC_BASE;
ENET_DMA = (ENET_DMA_TypeDef *)ENET_DMA_BASE;
#endif /* _ENET */
}
#endif /* DEBUG */
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_mc.c
0,0 → 1,1085
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_mc.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the MC firmware functions.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH
* CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS
* A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
* OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
* OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
* CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Standard include ----------------------------------------------------------*/
#include "91x_mc.h"
#include "91x_scu.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
#define MC_ODCS_Set 0x0001
#define MC_ODCS_Reset 0x00FE
#define MC_CMS_Set 0x0004
#define MC_CMS_Reset 0x00FB
#define MC_CPC_Set 0x0008
#define MC_CTC_Set 0x0010
#define MC_PCE_Set 0x0020
#define MC_PCE_Reset 0xFFDF
#define MC_TCE_Set 0x0040
#define MC_TCE_Reset 0x00BF
#define MC_DTE_Set 0x0080
#define MC_DTE_Reset 0x007F
#define MC_TCB_Set 0x0004
#define MC_TCB_Reset 0x00FB
#define MC_STC_Set 0x0008
#define MC_TES_Set 0x0010
#define MC_TES_Reset 0x00EF
#define MC_CCPT_Set 0x0020
#define MC_CCPT_Reset 0x005F
#define MC_DISEST_Set 0x0040
#define MC_DISEST_Reset 0x003F
#define MC_DTS_Set 0x0001
#define MC_DTS_Reset 0x00FE
#define MC_SDT_Set 0x0002
#define MC_C0SE_Set 0x0004
#define MC_C0SE_Reset 0x00FB
#define MC_CUSE_Set 0x0008
#define MC_CUSE_Reset 0x00F7
#define MC_CVSE_Set 0x0010
#define MC_CVSE_Reset 0x00EF
#define MC_CWSE_Set 0x0020
#define MC_CWSE_Reset 0x00D0
#define MC_RSE_Set 0x0040
#define MC_RSE_Reset 0x00BF
#define MC_GPI_Set 0x0080
#define MC_GPI_Reset 0x007F
#define MC_PUH_Set 0x0020
#define MC_PUH_Reset 0x005F
#define MC_PUL_Set 0x0010
#define MC_PUL_Reset 0x006F
#define MC_PVH_Set 0x0008
#define MC_PVH_Reset 0x0077
#define MC_PVL_Set 0x0004
#define MC_PVL_Reset 0x007B
#define MC_PWH_Set 0x0002
#define MC_PWH_Reset 0x007D
#define MC_PWL_Set 0x0001
#define MC_PWL_Reset 0x007E
#define MC_ODS_Set 0x0040
#define MC_ODS_Reset 0xFF3F
#define MC_ESC_Clear 0x4321
#define MC_PCR1_TIN_MASK 0xFFFC
#define MC_OPR_Mask 0x0040
#define MC_UDCS_Mask 0x0002
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************
* Function Name : MC_DeInit
* Description : Deinitializes MC peripheral registers to their default reset
* values.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void MC_DeInit(void)
{
/* MC peripheral is under Reset */
SCU_APBPeriphReset(__MC, ENABLE);
/* MC peripheral Reset off */
SCU_APBPeriphReset(__MC, DISABLE);
}
/*******************************************************************************
* Function Name : MC_Init
* Description : Initializes the MC peripheral according to the specified
* parameters in the MC_InitStruct .
* Input : IMC_InitStruct: pointer to a MC_InitTypeDef structure that
* contains the configuration information for the MC peripheral.
* Output : None
* Return : None
*******************************************************************************/
void MC_Init(MC_InitTypeDef* MC_InitStruct)
{
/* Select the operating Mode */
if(MC_InitStruct->MC_OperatingMode == MC_SoftwareOperating_Mode)
{
/* Select the Data transfer Mode */
MC->PCR2 |= MC_DTS_Set;
/* Enable the registers Software Data Transfer */
MC->PCR2 |= MC_C0SE_Set | MC_CUSE_Set | MC_CVSE_Set | MC_CWSE_Set
|MC_RSE_Set;
}
else
{
/* Select the Data transfer Mode */
MC->PCR2 &= MC_DTS_Reset;
/* Disable the registers Software Data Transfer */
MC->PCR2 &= MC_C0SE_Reset | MC_CUSE_Reset | MC_CVSE_Reset | MC_CWSE_Reset
|MC_RSE_Reset;
}
/* Select the MC PWM counter Mode */
if(MC_InitStruct->MC_PWMMode == MC_PWMZeroCentered_Mode)
{
MC->PCR0 |= MC_CMS_Set;
}
else
{
MC->PCR0 &= MC_CMS_Reset;
}
/* Set the MC PWM counter Prescaler */
MC->CPRS = MC_InitStruct->MC_Prescaler;
/* Set the MC PWM Period */
MC->CMP0 = MC_InitStruct->MC_Period;
/* Set the MC PWM Repetition counter */
MC->REP = MC_InitStruct->MC_RepetitionCounter;
/* Set the Tacho Compare value */
MC->TCMP = MC_InitStruct->MC_TachoPeriod;
/* Set the Tacho Prescaler value */
MC->TPRS = MC_InitStruct->MC_TachoPrescaler;
/* Set the MC Tacho Input Polarity */
MC->PCR1 = (MC->PCR1 & MC_PCR1_TIN_MASK) | MC_InitStruct->MC_TachoPolarity;
/* Set the MC PWM Forced State */
MC->OPR |= MC_ODS_Set;
MC->OPR = (MC->OPR & MC_OPR_Mask) | MC_InitStruct->MC_ForcedPWMState;
/* Select the Tacho Mode */
if(MC_InitStruct->MC_TachoMode == MC_TachoOneShot_Mode)
{
MC->PCR1 |= MC_TCB_Set;
}
else
{
MC->PCR1 &= MC_TCB_Reset;
}
/* Select the Tacho Event Mode */
if(MC_InitStruct->MC_TachoEvent_Mode == MC_TachoEvent_Software_Mode)
{
MC->PCR1 |= MC_TES_Set;
}
else
{
MC->PCR1 &= MC_TES_Reset;
}
/* Enable or disable the emergency input */
if(MC_InitStruct->MC_Emergency == MC_Emergency_Enable)
{
MC->PCR1 &= MC_DISEST_Reset;
}
else
{
MC->PCR1 |= MC_DISEST_Set;
}
/* Select the complementary Mode */
if(MC_InitStruct->MC_Complementary == MC_Complementary_Enable)
{
MC->DTG = MC_InitStruct->MC_DeadTime;
MC->PCR0 |= MC_ODCS_Set;
}
else
{
MC->PCR0 &= MC_ODCS_Reset;
}
/* Tacho Mode selection */
if(MC_InitStruct->MC_TachoMode == MC_TachoOneShot_Mode)
{
MC->PCR1 |= MC_TCB_Set;
}
else
{
MC->PCR1 &= MC_TCB_Reset;
}
switch(MC_InitStruct->MC_Channel)
{
/* Channel U configuration */
case MC_Channel_U:
{
MC->CMPU = MC_InitStruct->MC_PulseU;
if(MC_InitStruct->MC_PolarityUL == MC_Polarity_Inverted)
{
MC->PSR |= MC_PUL_Set;
}
else
{
MC->PSR &= MC_PUL_Reset;
}
if(MC_InitStruct->MC_PolarityUH == MC_Polarity_Inverted)
{
MC->PSR |= MC_PUH_Set;
}
else
{
MC->PSR &= MC_PUH_Reset;
}
break;
}
/* Channel V configuration */
case MC_Channel_V:
{
MC->CMPV = MC_InitStruct->MC_PulseV;
if(MC_InitStruct->MC_PolarityVL == MC_Polarity_Inverted)
{
MC->PSR |= MC_PVL_Set;
}
else
{
MC->PSR &= MC_PVL_Reset;
}
if(MC_InitStruct->MC_PolarityVH == MC_Polarity_Inverted)
{
MC->PSR |= MC_PVH_Set;
}
else
{
MC->PSR &= MC_PVH_Reset;
}
break;
}
/* Channel W configuration */
case MC_Channel_W:
{
MC->CMPW = MC_InitStruct->MC_PulseW;
if(MC_InitStruct->MC_PolarityWL == MC_Polarity_Inverted)
{
MC->PSR |= MC_PWL_Set;
}
else
{
MC->PSR &= MC_PWL_Reset;
}
if(MC_InitStruct->MC_PolarityWH == MC_Polarity_Inverted)
{
MC->PSR |= MC_PWH_Set;
}
else
{
MC->PSR &= MC_PWH_Reset;
}
break;
}
/* All Channel Configuration */
case MC_Channel_ALL:
{
MC->CMPU = MC_InitStruct->MC_PulseU;
MC->CMPV = MC_InitStruct->MC_PulseV;
MC->CMPW = MC_InitStruct->MC_PulseW;
if(MC_InitStruct->MC_PolarityUL == MC_Polarity_Inverted)
{
MC->PSR |= MC_PUL_Set;
}
else
{
MC->PSR &= MC_PUL_Reset;
}
if(MC_InitStruct->MC_PolarityUH == MC_Polarity_Inverted)
{
MC->PSR |= MC_PUH_Set;
}
else
{
MC->PSR &= MC_PUH_Reset;
}
if(MC_InitStruct->MC_PolarityVL == MC_Polarity_Inverted)
{
MC->PSR |= MC_PVL_Set;
}
else
{
MC->PSR &= MC_PVL_Reset;
}
if(MC_InitStruct->MC_PolarityVH == MC_Polarity_Inverted)
{
MC->PSR |= MC_PVH_Set;
}
else
{
MC->PSR &= MC_PVH_Reset;
}
if(MC_InitStruct->MC_PolarityWL == MC_Polarity_Inverted)
{
MC->PSR |= MC_PWL_Set;
}
else
{
MC->PSR &= MC_PWL_Reset;
}
if(MC_InitStruct->MC_PolarityWH == MC_Polarity_Inverted)
{
MC->PSR |= MC_PWH_Set;
}
else
{
MC->PSR &= MC_PWH_Reset;
}
}
default:
break;
}
}
/*******************************************************************************
* Function Name : MC_StructInit
* Description : Fills each MC_InitStruct member with its default value.
* Input : MC_InitStruct : pointer to a MC_InitTypeDef structure which
* will be initialized.
* Output : None
* Return : None.
*******************************************************************************/
void MC_StructInit(MC_InitTypeDef* MC_InitStruct)
{
u16 temp;
temp=MC->ECR;
temp &= MC_PWM_Counter ;
MC_InitStruct->MC_OperatingMode = MC_HardwareOperating_Mode;
MC_InitStruct->MC_TachoMode = MC_TachoContinuous_Mode;
MC_InitStruct->MC_TachoEvent_Mode = MC_TachoEvent_Hardware_Mode;
MC_InitStruct->MC_Prescaler = 0x00;
MC_InitStruct->MC_TachoPrescaler = 0x0000;
MC_InitStruct->MC_PWMMode = MC_PWMClassical_Mode;
MC_InitStruct->MC_Complementary = MC_Complementary_Enable;
MC_InitStruct->MC_Emergency = MC_Emergency_Disable;
MC_InitStruct->MC_ForcedPWMState = 0x003F;
MC_InitStruct->MC_Period = 0x0000;
MC_InitStruct->MC_TachoPeriod = 0x00FF;
MC_InitStruct->MC_Channel = MC_Channel_ALL;
MC_InitStruct->MC_PulseU = 0x0000;
MC_InitStruct->MC_PulseV = 0x0000;
MC_InitStruct->MC_PulseW = 0x0000;
MC_InitStruct->MC_PolarityUL = MC_Polarity_NonInverted;
MC_InitStruct->MC_PolarityUH = MC_Polarity_NonInverted;
MC_InitStruct->MC_PolarityVL = MC_Polarity_NonInverted;
MC_InitStruct->MC_PolarityVH = MC_Polarity_NonInverted;
MC_InitStruct->MC_PolarityWL = MC_Polarity_NonInverted;
MC_InitStruct->MC_PolarityWH = MC_Polarity_NonInverted;
MC_InitStruct->MC_TachoPolarity = MC_TachoEventEdge_RisingFalling;
if(temp==0)
{
MC_InitStruct->MC_DeadTime = 0x003F;
}
else
{
MC_InitStruct->MC_DeadTime = 0x03FF;
}
MC_InitStruct->MC_RepetitionCounter = 0x0000;
}
/*******************************************************************************
* Function Name : MC_Cmd
* Description : Enables or disables the MC peripheral.
* Input : Newstate: new state of the MC peripheral.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void MC_Cmd(FunctionalState NewState)
{
if(NewState == ENABLE)
{
/* Enable the PWM counter */
MC->PCR0 |= MC_PCE_Set;
/* Enable the Tacho counter */
MC->PCR0 |= MC_TCE_Set;
/* Enable the Dead Time counter */
MC->PCR0 |= MC_DTE_Set;
}
else
{
/* Disable the PWM counter */
MC->PCR0 &= MC_PCE_Reset;
/* Disable the Tacho counter */
MC->PCR0 &= MC_TCE_Reset;
/* Disable the Dead counter */
MC->PCR0 &= MC_DTE_Reset;
}
}
/*******************************************************************************
* Function Name : MC_ClearPWMCounter
* Description : Clears the MC PWM counter.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void MC_ClearPWMCounter(void)
{
/* Clear the PWM counter */
MC->PCR0 |= MC_CPC_Set;
}
/*******************************************************************************
* Function Name : MC_ClearTachoCounter
* Description : Clears the MC Tacho counter.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void MC_ClearTachoCounter(void)
{
/* Clear the Tacho counter */
MC->PCR0 |= MC_CTC_Set;
}
/*******************************************************************************
* Function Name : MC_CtrlPWMOutputs
* Description : Enables or disables MC peripheral Main Outputs.
* Input : Newstate: new state of the MC peripheral Main Outputs.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void MC_CtrlPWMOutputs(FunctionalState Newstate)
{
if(Newstate == ENABLE)
{
/* Enable the dead time generator data */
MC->OPR &= MC_ODS_Reset;
}
else
{
/* Enable the default state data */
MC->OPR |= MC_ODS_Set;
}
}
/*******************************************************************************
* Function Name : MC_ITConfig
* Description : Enables or disables the MC interrupts.
* Input : - MC_IT: specifies the MC interrupts sources to be enabled
* or disabled.
* This parameter can be any combination of the following values:
* - MC_IT_CMPW: Compare W Interrupt.
* - MC_IT_CMPV: Compare V Interrupt.
* - MC_IT_CMPU: Compare U Interrupt.
* - MC_IT_ZPC: Zero of PWM counter Interrupt.
* - MC_IT_ADT: Automatic Data Transfer Interrupt.
* - MC_IT_OTC: Overflow of Tacho counter Interrupt.
* - MC_IT_CPT: Capture of Tacho counter Interrupt.
* - MC_IT_CM0: Compare 0 Interrupt.
* - Newstate: new state of IMC interrupts.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void MC_ITConfig(u16 MC_IT, FunctionalState NewState)
{
if(NewState == ENABLE)
{
/* Enable the specific interrupt source */
MC->IMR |= MC_IT;
/* Enable the global peripheral interrupt sources */
MC->PCR2 |= MC_GPI_Set;
}
else
{
/* Disable the specific interrupt source */
MC->IMR &= ~MC_IT;
/* Disable the global peripheral interrupt sources */
MC->PCR2 &= MC_GPI_Reset;
}
}
/*******************************************************************************
* Function Name : MC_SetPrescaler
* Description : Sets the MC prescaler value.
* Input : MC_Prescaler: MC prescaler new value.
* Output : None
* Return : None
*******************************************************************************/
void MC_SetPrescaler(u8 MC_Prescaler)
{
/* Set the Prescaler Register value */
MC->CPRS = MC_Prescaler;
}
/*******************************************************************************
* Function Name : MC_SetPeriod
* Description : Sets the MC period value.
* Input : MC_Period: MC period new value.
* Output : None
* Return : None
*******************************************************************************/
void MC_SetPeriod(u16 MC_Period)
{
/* Set the Period Register value */
MC->CMP0 = MC_Period;
}
/*******************************************************************************
* Function Name : MC_SetPulseU
* Description : Sets the MC pulse U value.
* Input : MC_PulseU: MC pulse U new value.
* Output : None
* Return : None
*******************************************************************************/
void MC_SetPulseU(u16 MC_PulseU)
{
/* Set the Pulse U Register value */
MC->CMPU = MC_PulseU;
}
/*******************************************************************************
* Function Name : MC_SetPulseV
* Description : Sets the MC pulse V value.
* Input : MC_PulseV: MC pulse V new value.
* Output : None
* Return : None
*******************************************************************************/
void MC_SetPulseV(u16 MC_PulseV)
{
/* Set the Pulse V Register value */
MC->CMPV = MC_PulseV;
}
/*******************************************************************************
* Function Name : MC_SetPulseW
* Description : Sets the MC pulse W value.
* Input : MC_PulseW: MC pulse W new value.
* Output : None
* Return : None
*******************************************************************************/
void MC_SetPulseW(u16 MC_PulseW)
{
/* Set the Pulse W Register value */
MC->CMPW = MC_PulseW;
}
/*******************************************************************************
* Function Name : MC_PWMModeConfig
* Description : Selects the MC PWM counter Mode.
* Input : MC_PWMMode: MC PWM counter Mode.
* Output : None
* Return : None
*******************************************************************************/
void MC_PWMModeConfig(u16 MC_PWMMode)
{
/* Select the MC PWM counter Mode */
if(MC_PWMMode == MC_PWMZeroCentered_Mode)
{
MC->PCR0 |= MC_CMS_Set;
}
else
{
MC->PCR0 &= MC_CMS_Reset;
}
}
/*******************************************************************************
* Function Name : MC_SetDeadTime
* Description : Sets the MC dead time value.
* Input : MC_DeadTime: MC dead time new value.
* Output : None
* Return : None
*******************************************************************************/
void MC_SetDeadTime(u16 MC_DeadTime)
{
/* Set the dead time Register value */
MC->DTG = MC_DeadTime;
}
/*******************************************************************************
* Function Name : MC_SetTachoCompare
* Description : Sets the MC Tacho Compare Register value.
* Input : MC_Compare: MC Tacho compare new value.
* Output : None
* Return : None
*******************************************************************************/
void MC_SetTachoCompare(u8 MC_Compare)
{
/* Sets the Tacho Compare Register value */
MC->TCMP = MC_Compare;
}
/*******************************************************************************
* Function Name : MC_EmergencyCmd
* Description : Enables or disables the MC emergency feauture.
* Input : Newstate: new state of the MC peripheral Emergency.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void MC_EmergencyCmd(FunctionalState NewState)
{
if(NewState == ENABLE)
{
/* Reset the DISEST Bit in the PCR1 Register to enable the emergency stop input */
MC->PCR1 &= MC_DISEST_Reset;
}
else
{
/* Set the DISEST Bit in the PCR1 Register to disable the emergency stop input */
MC->PCR1 |= MC_DISEST_Reset;
}
}
/*******************************************************************************
* Function Name : MC_EmergencyClear
* Description : Clears the MC Emergency Register.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void MC_EmergencyClear(void)
{
MC->ECR |= 0x0100;
/* Clear EST bit */
MC->ESC = MC_ESC_Clear;
}
/*******************************************************************************
* Function Name : MC_GetPeriod
* Description : Gets the MC period value.
* Input : None
* Output : None
* Return : MC period value.
*******************************************************************************/
u16 MC_GetPeriod(void)
{
/* Return the PWM signal period value */
return MC->CMP0;
}
/*******************************************************************************
* Function Name : MC_GetPulseU
* Description : Gets the MC pulse U value.
* Input : None
* Output : None
* Return : MC pulse U value.
*******************************************************************************/
u16 MC_GetPulseU(void)
{
/* Return the PWM pulse U Register value */
return MC->CMPU;
}
/*******************************************************************************
* Function Name : MC_GetPulseV
* Description : Gets the MC pulse V value.
* Input : None
* Output : None
* Return : MC pulse V value.
*******************************************************************************/
u16 MC_GetPulseV(void)
{
/* Return the PWM pulse V Register value */
return MC->CMPV;
}
/*******************************************************************************
* Function Name : MC_GetPulseW
* Description : Gets the MC pulse W value.
* Input : None
* Output : None
* Return : MC pulse W value.
*******************************************************************************/
u16 MC_GetPulseW(void)
{
/* Return the PWM pulse W Register value */
return MC->CMPW;
}
/*******************************************************************************
* Function Name : MC_GetTachoCapture
* Description : Gets the MC Tacho period value.
* Input : None
* Output : None
* Return : MC Tacho capture value.
*******************************************************************************/
u16 MC_GetTachoCapture(void)
{
/* Return the Tacho Capture Register value */
return MC->TCPT;
}
/*******************************************************************************
* Function Name : MC_ClearOnTachoCapture
* Description : Enables or disables the the Clear on capture of tacho counter.
* Input : Newstate: new state of the CCPT bit.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void MC_ClearOnTachoCapture(FunctionalState NewState)
{
if(NewState == ENABLE)
{
/* Enable the Clear on capture of tacho counter */
MC->PCR1 |= MC_CCPT_Set;
}
else
{
/* Disable the Clear on capture of tacho counter */
MC->PCR1 &= MC_CCPT_Reset;
}
}
/*******************************************************************************
* Function Name : MC_ForceDataTransfer
* Description : Sets the MC Outputs default states.
* Input : MC_ForcedData: MC outputs new states.
* Output : None
* Return : None
*******************************************************************************/
void MC_ForceDataTransfer(u8 MC_ForcedData)
{
/* Set the MC PWM Forced State */
MC->OPR |= MC_ODS_Set;
MC->OPR = (MC->OPR & MC_OPR_Mask) | MC_ForcedData;
}
/*******************************************************************************
* Function Name : MC_PreloadConfig
* Description : Enables the Software Data Transfer.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void MC_SoftwarePreloadConfig(void)
{
/* Set the SDT: Software Data Transfer bit */
MC->PCR2 |= MC_SDT_Set;
}
/*******************************************************************************
* Function Name : MC_SoftwareTachoCapture
* Description : Enables the Software Tacho Capture.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void MC_SoftwareTachoCapture(void)
{
/* Set the STC: Software Tacho Capture bit */
MC->PCR1 |= MC_STC_Set;
}
/*******************************************************************************
* Function Name : MC_GetCountingStatus
* Description : Checks whether the PWM Counter is counting Up or Down.
* Input : None
* Output : None
* Return : The new state of the PWM Counter(DOWN or UP).
*******************************************************************************/
CountingStatus MC_GetCountingStatus(void)
{
if((MC->PCR0 & MC_UDCS_Mask) != DOWN)
{
return UP;
}
else
{
return DOWN;
}
}
/*******************************************************************************
* Function Name : MC_GetFlagStatus
* Description : Checks whether the specified MC flag is set or not.
* Input : MC_FLAG: specifies the flag to check.
* This parameter can be one of the following values:
* - MC_FLAG_CMPW: Compare W Flag.
* - MC_FLAG_CMPV: Compare V Flag.
* - MC_FLAG_CMPU: Compare U Flag.
* - MC_FLAG_ZPC: Zero of PWM counter Flag.
* - MC_FLAG_ADT: Automatic Data Transfer Flag.
* - MC_FLAG_OTC: Overflow of Tacho counter Flag.
* - MC_FLAG_CPT: Capture of Tacho counter Flag.
* - MC_FLAG_CM0: Compare 0 Flag.
* - MC_FLAG_EST: Emergency Stop Flag.
* Output : None
* Return : The new state of the MC_FLAG(SET or RESET).
*******************************************************************************/
FlagStatus MC_GetFlagStatus(u16 MC_FLAG)
{
if((MC->IPR & MC_FLAG) != RESET)
{
return SET;
}
else
{
return RESET;
}
}
/*******************************************************************************
* Function Name : MC_ClearFlag
* Description : Clears the MC’s pending flags.
* Input : MC_FLAG: specifies the flag to clear.
* This parameter can be any combination of the following values:
* - MC_FLAG_CMPW: Compare W Flag.
* - MC_FLAG_CMPV: Compare V Flag.
* - MC_FLAG_CMPU: Compare U Flag.
* - MC_FLAG_ZPC: Zero of PWM counter Flag.
* - MC_FLAG_ADT: Automatic Data Transfer Flag.
* - MC_FLAG_OTC: Overflow of Tacho counter Flag.
* - MC_FLAG_CPT: Capture of Tacho counter Flag.
* - MC_FLAG_CM0: Compare 0 Flag.
* Output : None
* Return : None
*******************************************************************************/
void MC_ClearFlag(u16 MC_FLAG)
{
/* Clear the corresponding Flag */
MC->IPR &= ~MC_FLAG;
}
/*******************************************************************************
* Function Name : MC_GetITStatus
* Description : Checks whether the MC interrupt has occurred or not.
* Input : MC_IT: specifies the MC interrupt source to check.
* This parameter can be one of the following values:
* - MC_IT_CMPW: Compare W Interrupt.
* - MC_IT_CMPV: Compare V Interrupt.
* - MC_IT_CMPU: Compare U Interrupt.
* - MC_IT_ZPC: Zero of PWM counter Interrupt.
* - MC_IT_ADT: Automatic Data Transfer Interrupt.
* - MC_IT_OTC: Overflow of Tacho counter Interrupt.
* - MC_IT_CPT: Capture of Tacho counter Interrupt.
* - MC_IT_CM0: Compare 0 Interrupt.
* Output : None
* Return : The new state of the MC_IT(SET or RESET).
*******************************************************************************/
ITStatus MC_GetITStatus(u16 MC_IT)
{
if((MC->IPR & MC_IT) && (MC->IMR & MC_IT))
{
return SET;
}
else
{
return RESET;
}
}
/*******************************************************************************
* Function Name : MC_ClearITPendingBit
* Description : Clears the IMC's interrupt pending bits.
* Input : MC_IT: specifies the pending bit to clear.
* This parameter can be any combination of the following values:
* - MC_IT_CMPW: Compare W Interrupt.
* - MC_IT_CMPV: Compare V Interrupt.
* - MC_IT_CMPU: Compare U Interrupt.
* - MC_IT_ZPC: Zero of PWM counter Interrupt.
* - MC_IT_ADT: Automatic Data Transfer Interrupt.
* - MC_IT_OTC: Overflow of Tacho counter Interrupt.
* - MC_IT_CPT: Capture of Tacho counter Interrupt.
* - MC_IT_CM0: Compare 0 Interrupt.
* Output : None
* Return : None
*******************************************************************************/
void MC_ClearITPendingBit(u16 MC_IT)
{
/* Clear the corresponding interrupt pending bit */
MC->IPR &= ~MC_IT;
}
/*******************************************************************************
* Function Name : MC_Lock
* Description : Enables the lock of certain control register bits
* Input : - MC_LockLevel: Specifies the level to be locked.
* This parameter can be any combination of the following values:
* - MC_LockLevel4: Lock Dead Time Generator register.
* - MC_LockLevel3: Lock Output Peripheral Register.
* - MC_LockLevel2: Lock phase polarity bits.
* - MC_LockLevel1: Lock Emergency Stop Disable bit.
* - MC_LockLevel0: Dead Time Enable and Output Dead Time
* counter Selection bits.
* Output : None
* Return : None
*******************************************************************************/
void MC_Lock(u16 MC_LockLevel)
{
MC->LOK &= ~MC_LockLevel;
MC->LOK |= MC_LockLevel;
}
/******************************************************************************
* Function Name : MC_CounterModeConfig
* Description : Enables the 10 bits mode for the dead time counter or enables
* the 16 bits mode for the PWM counter.
* Input : - MC_Counter : Specifies the counter
* This parameter can be any combination of the following values:
* - MC_DT_Counter : Dead Time Counter is in 10 bits mode.
* - MC_PWM_Counter : PWM_Counter is in 16 bits mode.
* Output : None
* Return : None
*******************************************************************************/
void MC_CounterModeConfig(u16 MC_Counter)
{
MC->ECR &= ~MC_Counter;
MC->ECR |= MC_Counter;
}
/*******************************************************************************
* Function Name : MC_DoubleUpdateMode
* Description : Enables or disables the Double Update Mode for the MC
* Input : - Newstate: New state of the double update mode.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void MC_DoubleUpdateMode(FunctionalState NewState)
{
if( NewState==ENABLE)
{
MC->ECR |= MC_DUM;
}
else
{
MC->ECR &= ~MC_DUM;
}
}
/*******************************************************************************
* Function Name : MC_ADCTrigger
* Description : Enables or disables the Triggers to the ADC conversion
* Input : IMC event : The IMC event to trigger the ADC conversion
* This parameter can be one of the following values:
* - MC_ZPC : When the PWM counter reaches zero.
* - MC_CM0 : When the PWM counter reaches its maximum
* count.
* - MC_ADT : When the PWM counter equals zero and the
* Repetition Down counter equals zero.
* - Newstate: New state of the ADC trigger event.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void MC_ADCTrigger(u16 IMC_Event, FunctionalState NewState)
{
MC->ECR &= 0x01F3;
if( NewState==ENABLE)
{
MC->ECR |= IMC_Event;
}
else
{
MC->ECR &= ~IMC_Event;
}
}
/*******************************************************************************
* Function Name : MC_EnhancedStop
* Description : Enables or disables an Enhanced Motor Stop feature.
* Input : NewState : This pararameter can be ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void MC_EnhancedStop(FunctionalState NewState)
{
if( NewState==ENABLE)
{
MC->ECR |= 0x0040;
}
else
{
MC->ECR &= ~ 0x0040;
}
}
/*******************************************************************************
* Function Name : MC_DebugOutputProtection
* Description : Allows the output phases to follow the polarity set by PSR if
* enabled or they remain in their last known state if disabled.
* Input : NewState : This pararameter can be ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void MC_DebugOutputProtection(FunctionalState NewState)
{
if( NewState==ENABLE)
{
MC->ECR |= 0x0080;
}
else
{
MC->ECR &= ~0x0080;
}
}
/*******************************************************************************
* Function Name : MC_EmergencyStopPolarity
* Description : Enables or disables an Enhanced Stop Polarity feature.
* Input : NewState : This pararameter can be ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void MC_EmergencyStopPolarity(FunctionalState NewState)
{
if( NewState==ENABLE)
{
MC->ECR |= 0x0002;
}
else
{
MC->ECR &= ~0x0002;
}
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_rtc.c
0,0 → 1,397
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_rtc.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides the RTC library firmware functions
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH
* CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS
* A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
* OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
* OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
* CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "91x_rtc.h"
#include "91x_scu.h"
/* Include of other module interface headers ---------------------------------*/
/* Local includes ------------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
u8 BYTEToBCD2(u8 value);
u16 WORDToBCD3(u16 value);
u8 BCD2ToBYTE(u8 value);
u16 BCD3ToBYTE(u16 value);
/* Interface functions -------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : BYTEToBCD2
* Description : Converts a 2 digit decimal to BCD format
* Input : None
* Output : None
* Return : Converted byte
*******************************************************************************/
u8 BYTEToBCD2(u8 value)
{
u8 bcdhigh = 0;
while (value >= 10)
{
bcdhigh++;
value -= 10;
}
return (bcdhigh << 4) | value;
}
/*******************************************************************************
* Function Name : WORDToBCD3
* Description : Converts a 3 digit decimal to BCD format
* Input : None
* Output : None
* Return : Converted word
*******************************************************************************/
u16 WORDToBCD3(u16 value)
{
u16 bcdhigh = 0;
while (value >= 100)
{
bcdhigh++;
value -= 100;
}
bcdhigh <<= 4;
while (value >= 10)
{
bcdhigh++;
value -= 10;
}
return (bcdhigh << 4) | value;
}
/*******************************************************************************
* Function Name : BCD3ToWORD
* Description : convert from 3 digit BCD to Binary
* Input : None
* Output : None
* Return : Converted word
*******************************************************************************/
u16 BCD3ToWORD(u16 value)
{
return (u16)((((value&0xF00)>>8)*100) + (((value&0x0F0)>>4)*10) + (value&0x0F));
}
/*******************************************************************************
* Function Name : BCD2ToBYTE
* Description : convert from 2 digit BCD to Binary
* Input : None
* Output : None
* Return : Converted word
*******************************************************************************/
u8 BCD2ToBYTE(u8 value)
{
u32 tmp;
tmp= ((value&0xF0)>>4)*10;
return (u8)(tmp+ (value&0x0F));
}
/*******************************************************************************
* Function Name : RTC_DeInit
* Description : Resets the RTC peripheral registers
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void RTC_DeInit(void)
{
SCU_APBPeriphReset(__RTC,ENABLE);
SCU_APBPeriphReset(__RTC,DISABLE);
}
/*******************************************************************************
* Function Name : RTC_SetDate
* Description : Sets the Date register
* Input : struct of type RTC_DATE
* Output : None
* Return : None
*******************************************************************************/
void RTC_SetDate(RTC_DATE Date)
{
u32 tmp = 0;
RTC->CR |=0x80; /*Enable write operation in DTR register*/
RTC->DTR = 0;
tmp = BYTEToBCD2(Date.century);
RTC->DTR|=tmp<<24;
tmp = BYTEToBCD2(Date.year);
RTC->DTR|=tmp<<16;
tmp = BYTEToBCD2(Date.month);
RTC->DTR|=tmp<<8;
tmp = BYTEToBCD2(Date.weekday);
RTC->DTR|=tmp;
RTC->TR &=0xFFFFFF;
tmp = BYTEToBCD2(Date.day);
RTC->TR|=tmp<<24;
RTC->CR &=~0x80; /*Disable write operation in DTR register*/
}
/*******************************************************************************
* Function Name : RTC_SetTime
* Description : Sets the Time register
* Input : struct of type RTC_TIME
* Output : None
* Return : None
*******************************************************************************/
void RTC_SetTime(RTC_TIME Time)
{
u32 tmp = 0;
RTC->CR |=0x80; /*Enable write operation in TR register*/
RTC->TR &= 0xFF000000;
tmp = BYTEToBCD2(Time.hours);
RTC->TR|=tmp<<16;
tmp = BYTEToBCD2(Time.minutes);
RTC->TR|=tmp<<8;
tmp = BYTEToBCD2(Time.seconds);
RTC->TR|=tmp;
RTC->MILR = 0;
RTC->MILR |= WORDToBCD3(Time.milliseconds);
RTC->CR &=~0x80; /*Disable write operation in TR register*/
}
/*******************************************************************************
* Function Name : RTC_SetAlarm
* Description : Sets the Alarm register
* Input : Struct of type RTC_ALARM
* Output : Date
* Return : None
*******************************************************************************/
void RTC_SetAlarm(RTC_ALARM Alarm)
{
u32 tmp = 0;
RTC->CR |=0x80; /*Enable write operation in ATR register*/
RTC->ATR = 0;
tmp = BYTEToBCD2(Alarm.day);
RTC->ATR|=tmp<<24;
tmp = BYTEToBCD2(Alarm.hours);
RTC->ATR|=tmp<<16;
tmp = BYTEToBCD2(Alarm.minutes);
RTC->ATR|=tmp<<8;
tmp = BYTEToBCD2(Alarm.seconds);
RTC->ATR|=tmp;
RTC->CR &=~0x80; /*Disable write operation in ATR register*/
}
/*******************************************************************************
* Function Name : RTC_GetDate
* Description : Gets RTC date in BCD coded or BINARY code
* Input : -Format: BCD or BINARY
* -Date: pointer to structure of type RTC_DATE to be filled by function
* Output : None
* Return : None
*******************************************************************************/
void RTC_GetDate(u8 Format, RTC_DATE * Date)
{
Date->century = (u8)((RTC->DTR&0xFF000000)>>24);
Date->year = (u8)((RTC->DTR&0x00FF0000)>>16);
Date->month = (u8)((RTC->DTR&0x00001F00)>>8);
Date->day = (u8)((RTC->TR&0x3F000000)>>24);
Date->weekday = (u8)(RTC->DTR&0xF);
if (Format == BINARY)
{
Date->century = BCD2ToBYTE(Date->century);
Date->year = BCD2ToBYTE(Date->year);
Date->month = BCD2ToBYTE(Date->month);
Date->day = BCD2ToBYTE(Date->day);
Date->weekday = BCD2ToBYTE(Date->weekday);
}
}
/*******************************************************************************
* Function Name : RTC_GetTime
* Description : Gets TIME in BCD coded or BINARY code
* Input : -Format: BCD or BINARY
* -Time : pointer to structure of type RTC_TIME to be filled by function
* Output : Time
* Return : None
*******************************************************************************/
void RTC_GetTime(u8 Format, RTC_TIME * Time)
{
Time->hours = (u8)((RTC->TR&0x003F0000)>>16);
Time->minutes = (u8)((RTC->TR&0x00007F00)>>8);
Time->seconds = (u8)(RTC->TR&0x7F);
Time->milliseconds =(u16)(RTC->MILR&0xFFF);
if (Format == BINARY)
{
Time->hours = BCD2ToBYTE(Time->hours);
Time->minutes = BCD2ToBYTE(Time->minutes);
Time->seconds = BCD2ToBYTE(Time->seconds);
Time->milliseconds = BCD3ToWORD(Time->milliseconds);
}
}
/*******************************************************************************
* Function Name : RTC_GetAlarm
* Description : Gets the RTC Alarm in BCD or BINARY code
* Input : -Format: BCD or BINARY
* -Alarm : pointer to structure of type RTC_ALARM to be filled by function
* Output : Alarm
* Return : None
*******************************************************************************/
void RTC_GetAlarm(u8 Format,RTC_ALARM * Alarm)
{
Alarm->day = (u8)((RTC->ATR&0x3F000000)>>24);
Alarm->hours = (u8)((RTC->ATR&0x003F0000)>>16);
Alarm->minutes = (u8)((RTC->ATR&0x00007F00)>>8);
Alarm->seconds = (u8)((RTC->ATR)&0x7F);
if (Format == BINARY)
{
Alarm->day = BCD2ToBYTE(Alarm->day);
Alarm->hours = BCD2ToBYTE(Alarm->hours);
Alarm->minutes = BCD2ToBYTE(Alarm->minutes);
Alarm->seconds = BCD2ToBYTE(Alarm->seconds);
}
}
/*******************************************************************************
* Function Name : RTC_TamperConfig
* Description : configures the Tamper mode and tamper polarity
* Input : -TamperMode: RTC_TamperMode_Edge or RTC_TamperMode_Level
* -TamperPol : RTC_TamperPol_Low or RTC_TamperMode_High
* Output : None
* Return : None
*******************************************************************************/
void RTC_TamperConfig(u32 TamperMode, u32 TamperPol)
{
RTC->CR&=RTC_TamperMode_Edge;
if (TamperMode!=RTC_TamperMode_Edge)
RTC->CR|=RTC_TamperMode_Level;
RTC->CR&=RTC_TamperPol_Low;
if (TamperPol!=RTC_TamperPol_Low)
RTC->CR|=RTC_TamperPol_High;
}
/*******************************************************************************
* Function Name : RTC_TamperCmd
* Description : Enable or Disable Tamper
* Input : NewState: ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void RTC_TamperCmd(FunctionalState NewState)
{
RTC->CR&=0xFFFFFFFE;
if (NewState==ENABLE)
RTC->CR|=0x1;
}
/*******************************************************************************
* Function Name : RTC_AlarmCmd
* Description : Enable or Disable Alarm
* Input : NewState: ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void RTC_AlarmCmd(FunctionalState NewState)
{
RTC->CR&=~0x100000;
if (NewState==ENABLE)
RTC->CR|=0x100000;
}
/*******************************************************************************
* Function Name : RTC_CalibClockCmd
* Description : Enable or Disable RTC Calibration Clock Output
* Input : NewState: ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void RTC_CalibClockCmd(FunctionalState NewState)
{
RTC->CR&=~0x40;
if (NewState ==ENABLE)
RTC->CR|=0x40;
}
/*******************************************************************************
* Function Name : SRAMBattPowerCmd
* Description : Enable or Disable SRAM backup Power by VBATT
* Input : NewState : ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void RTC_SRAMBattPowerCmd(FunctionalState NewState)
{
RTC->CR&=~0x8;
if (NewState ==ENABLE)
RTC->CR|=0x8;
}
/*******************************************************************************
* Function Name : RTC_PeridicIntConfig
* Description : Select a Periodic CLock
* Input : PeriodicClock
* Output : None
* Return : None
* Note : When PeriodicClock = RTC_Per_DISABLE the Periodic clock generation
* will be disabled.
*******************************************************************************/
void RTC_PeriodicIntConfig(u32 PeriodicClock)
{
RTC->CR &=~0xF0000;
RTC->CR|=PeriodicClock;
}
/*******************************************************************************
* Function Name : RTC_ITConfig
* Description : Enable or Disable an interrupt
* Input : -RTC_IT : RTC interrupt
* -Newstate: Enable or Disable
* Output : None
* Return : None
*******************************************************************************/
void RTC_ITConfig(u32 RTC_IT, FunctionalState NewState)
{
RTC->CR&=~RTC_IT;
if (NewState==ENABLE)
RTC->CR|=RTC_IT;
}
/*******************************************************************************
* Function Name : RTC_GetFlagStatus
* Description : Gets a RTC flag status
* Input : RTC_FLAG
* Output : None
* Return : FlagStatus :SET or RESET
*******************************************************************************/
FlagStatus RTC_GetFlagStatus(u32 RTC_FLAG)
{
if (RTC->SR&RTC_FLAG) return SET;
else return RESET;
}
/*******************************************************************************
* Function Name : RTC_ClearFlag
* Description : Clears a RTC flag
* Input : RTC_FLAG
* Output : None
* Return : None
* Note : Before clearing the RTC Periodic Flag you need to disable the
* Periodic interrupt generation, to do this use function
* RTC_PeriodicIntConfig(RTC_Per_DISABLE)
*******************************************************************************/
void RTC_ClearFlag(u32 RTC_FLAG)
{
vu32 tmp=0;
if (RTC_FLAG == RTC_FLAG_Per) tmp=RTC->SR;
else if (RTC_FLAG == RTC_FLAG_Alarm) RTC->CR&=~0x100000;
else if (RTC_FLAG == RTC_FLAG_Tamper) RTC->CR&=~0x1;
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_scu.c
0,0 → 1,675
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_scu.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides the SCU library firmware functions
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH
* CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS
* A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
* OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
* OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
* CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "91x_scu.h"
/* Include of other module interface headers ---------------------------------*/
/* Local includes ------------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define SCU_PLLEN 0x80000
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Interface functions -------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : SCU_MCLKSourceConfig
* Description : Configures the MCLK source clock
* Input : MCLK_Source = SCU_MCLK_OSC, SCU_MCLK_PLL or SCU_MCLK_RTC
* Output : None
* Return : ErrorStatus: SUCCESS or ERROR
* Note : this function returns ERROR if trying to select the PLL as
* clock source while the PLL is disabled or not locked.
*******************************************************************************/
ErrorStatus SCU_MCLKSourceConfig(u32 MCLK_Source)
{
u32 CLKCNTR_Value;
CLKCNTR_Value = SCU->CLKCNTR; /*get CLKCNTR register value*/
CLKCNTR_Value &=~0x3; /*clear field MCLKSEL*/
if (MCLK_Source == SCU_MCLK_PLL) /*PLL selected as clock source*/
{
/*check if PLL enabled & locked*/
if (!((SCU->PLLCONF&SCU_PLLEN)&&(SCU->SYSSTATUS&SCU_FLAG_LOCK)))
return ERROR;
}
else CLKCNTR_Value |=MCLK_Source; /*OSC or RTC selected as clock source*/
SCU->CLKCNTR = CLKCNTR_Value; /*Update CLKCNTR register value*/
return SUCCESS;
}
/*******************************************************************************
* Function Name : SCU_PLLFactorsConfig
* Description : Sets the PLL factors
* Input : PLLN, PLLM and PLLP
* Output : None
* Return : ErrorStatus: ERROR or SUCCESS
* Notes : -The PLL factors must respect the PLL specification requirements
* -The function returns ERROR if trying to change PLL
* factors while PLL is selected as Main Clock source (MCLK)
* -This function disables the PLL, to enable the PLL use
* function" SCU_PLLCmd(ENABLE)" after setting the PLL factors
******************************************************************************/
ErrorStatus SCU_PLLFactorsConfig(u8 PLLN, u8 PLLM, u8 PLLP)
{
if (SCU_PLLCmd(DISABLE)==SUCCESS) /*Disable PLL*/
{
SCU->PLLCONF =0; /*clear PLLCONF register*/
SCU->PLLCONF |=(PLLN<<8); /*update PLLN field*/
SCU->PLLCONF |=PLLM; /*update PLLM field*/
SCU->PLLCONF |=PLLP<<16; /*update PLLP field*/
return SUCCESS;
}
return ERROR;
}
/*******************************************************************************
* Function Name : SCU_PLLCmd
* Description : Enable or Disable the PLL
* Input : NewState = ENABLE or DISABLE
* Output : None
* Return : ErrorStatus: SUCCESS or ERROR
* Note : -The function returns ERROR if:
* *trying to disable the PLL while it is selected as the MCLK
* *trying to enable the PLL while it is already enabled and
* locked
*******************************************************************************/
ErrorStatus SCU_PLLCmd(FunctionalState NewState)
{
if (NewState==ENABLE)
{
if (!((SCU->PLLCONF&SCU_PLLEN)&&(SCU->SYSSTATUS&SCU_FLAG_LOCK)))
{
SCU->SYSSTATUS|=SCU_FLAG_LOCK; /*clear LOCK bit*/
SCU->PLLCONF |=SCU_PLLEN; /*PLL Enable*/
while(!(SCU->SYSSTATUS&SCU_FLAG_LOCK)); /*Wait PLL to lock*/
return SUCCESS;
}
else return ERROR;
}
else /*NewState = DISABLE*/
{
if(SCU->CLKCNTR&0x3) /*check if PLL not sys CLK*/
{
SCU->PLLCONF &=~SCU_PLLEN; /*PLL Disable*/
return SUCCESS;
}
else return ERROR;
}
}
/*******************************************************************************
* Function Name : SCU_RCLKDivisorConfig
* Description : Sets the RCLK divisor value
* Input : RCLK_Divisor
* Output : None
* Return : None
*******************************************************************************/
void SCU_RCLKDivisorConfig(u32 RCLK_Divisor)
{
SCU->CLKCNTR &=SCU_RCLK_Div1; /*clear RCLKDIV[2:0] field*/
if (RCLK_Divisor!=SCU_RCLK_Div1)
SCU->CLKCNTR |= RCLK_Divisor; /*update field with RCLK divisor*/
}
/*******************************************************************************
* Function Name : SCU_HCLKDivisorConfig
* Description : Sets the HCLK divisor value
* Input : HCLK_Divisor
* Output : None
* Return : None
*******************************************************************************/
void SCU_HCLKDivisorConfig(u32 HCLK_Divisor)
{
SCU->CLKCNTR &=SCU_HCLK_Div1; /*clear AHBDIV[1:0] field*/
if (HCLK_Divisor!=SCU_HCLK_Div1)
SCU->CLKCNTR |= HCLK_Divisor; /*update field with HCLK divisor*/
}
/*******************************************************************************
* Function Name : SCU_PCLKDivisorConfig
* Description : Sets the PCLK divisor value
* Input : PCLK_Divisor
* Output : None
* Return : None
*******************************************************************************/
void SCU_PCLKDivisorConfig(u32 PCLK_Divisor)
{
SCU->CLKCNTR &=SCU_PCLK_Div1; /*clear APBDIV[1:0] field*/
if (PCLK_Divisor!=SCU_PCLK_Div1)
SCU->CLKCNTR |= PCLK_Divisor; /*update field with PCLK Divisor*/
}
/*******************************************************************************
* Function Name : SCU_APBPeriphClockConfig
* Description : Enable the clock for an APB peripheral
* Input : -APBPerip : APB peripherals(__RTC, __ADC ,...)
* -NewState : ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void SCU_APBPeriphClockConfig(u32 APBPeriph, FunctionalState NewState)
{
if (NewState==ENABLE) /*Enable clock for APB peripheral*/
SCU->PCGR1 |=APBPeriph;
else
SCU->PCGR1 &=~APBPeriph; /*Disable clock for APB peripheral*/
}
/*******************************************************************************
* Function Name : SCU_AHBPeriphClockConfig
* Description : Enable the clock for an AHB peripheral
* Input : -AHBPerip: AHB peripherals(__USB, __DMA,...)
* -NewState : ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void SCU_AHBPeriphClockConfig(u32 AHBPeriph, FunctionalState NewState)
{
if (NewState==ENABLE) /*Enable clock for AHB peripheral*/
SCU->PCGR0 |=AHBPeriph;
else
SCU->PCGR0 &=~AHBPeriph; /*Disable clock for AHB peripheral*/
}
/*******************************************************************************
* Function Name : SCU_APBPeriphReset
* Description : Assert or deassert Reset on APB peripheral
* Input : -APBPeriph: APB peripherals(__RTC, __ADC,...)
-NewState : ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void SCU_APBPeriphReset(u32 APBPeriph, FunctionalState NewState)
{
if (NewState==DISABLE) /*APB peripheral not held in Reset*/
SCU->PRR1 |=APBPeriph;
else
SCU->PRR1 &=~APBPeriph; /*APB peripheral held in Reset*/
}
/*******************************************************************************
* Function Name : SCU_AHBPeriphReset
* Description : Assert or deassert Reset on AHB peripheral
* Input : -AHBPeriph: AHB peripherals(__USB, __DMA,...)
-NewState : ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void SCU_AHBPeriphReset(u32 AHBPeriph, FunctionalState NewState)
{
if (NewState==DISABLE)
SCU->PRR0 |=AHBPeriph; /*AHB peripheral not held in Reset*/
else
SCU->PRR0 &=~AHBPeriph; /*AHB peripheral held in Reset*/
}
/*******************************************************************************
* Function Name : SCU_APBPeriphIdleConfig
* Description : Enable or Disable Periph Clock during Idle mode
* Input : -APBPeriph: APB peripherals(__RTC, __ADC,...)
-NewState : ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void SCU_APBPeriphIdleConfig(u32 APBPeriph, FunctionalState NewState)
{
if (NewState==ENABLE)
SCU->MGR1 |=APBPeriph; /*APB peripheral clock enabled during Idle mode*/
else
SCU->MGR1 &=~APBPeriph; /*APB peripheral clock disabled during Idle mode*/
}
/*******************************************************************************
* Function Name : SCU_AHBPeriphIdleConfig
* Description : Enable or Disable Periph Clock during Idle mode
* Input : -AHBPeriph: AHB peripherals(__USB, __DMA,...)
-NewState : ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void SCU_AHBPeriphIdleConfig(u32 AHBPeriph, FunctionalState NewState)
{
if (NewState==ENABLE)
SCU->MGR0 |=AHBPeriph; /*AHB peripheral clock enabled during Idle mode*/
else
SCU->MGR0 &=~AHBPeriph; /*AHB peripheral clock disabled during Idle mode*/
}
/*******************************************************************************
* Function Name : SCU_APBPeriphDebugConfig
* Description : Enable or Disable Periph Clock during ARM debug state
* Input : -APBPeriph: APB peripherals(__RTC, __ADC,...)
-NewState : ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void SCU_APBPeriphDebugConfig(u32 APBPeriph, FunctionalState NewState)
{
if (NewState==ENABLE)
SCU->PECGR1 |=APBPeriph; /*APB peripheral clock enabled during ARM debug state*/
else
SCU->PECGR1 &=~APBPeriph; /*APB peripheral clock disabled during ARM debug state*/
}
/*******************************************************************************
* Function Name : SCU_AHBPeriphDebugConfig
* Description : Enable or Disable Periph Clock during ARM debug state
* Input : -AHBPeriph: AHB peripherals(__USB, __DMA,...)
-NewState : ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void SCU_AHBPeriphDebugConfig(u32 AHBPeriph, FunctionalState NewState)
{
if (NewState==ENABLE)
SCU->PECGR0 |=AHBPeriph; /*AHB peripheral clock enabled during ARM debug state*/
else
SCU->PECGR0 &=~AHBPeriph; /*AHB peripheral clock disabled during ARM debug state*/
}
/*******************************************************************************
* Function Name : SCU_BRCLKDivisorConfig
* Description : Sets the BRCLK divisor value
* Input : BRCLK_Divisor
* Output : None
* Return : None
*******************************************************************************/
void SCU_BRCLKDivisorConfig(u32 BRCLK_Divisor)
{
SCU->CLKCNTR &=SCU_BRCLK_Div2; /*Clear BRSEL bit*/
if (BRCLK_Divisor==SCU_BRCLK_Div1)
SCU->CLKCNTR |= SCU_BRCLK_Div1; /*set bit BRSEL*/
}
/*******************************************************************************
* Function Name : SCU_TIMExtCLKCmd
* Description : Enable or disable the TIMx external clock source
* Input : - TIMx : SCU_TIM01 or SCU_TIM23
* - NewState : ENABLE or DISABLE
* Output : Non
* Return : None
*******************************************************************************/
void SCU_TIMExtCLKCmd (u8 TIMx, FunctionalState NewState)
{
if (TIMx== SCU_TIM01) /*TIM01 clock source configuration*/
{
SCU->CLKCNTR &=0xFFFFDFFF;
if (NewState==ENABLE)
SCU->CLKCNTR |=0x2000;
}
else
{
SCU->CLKCNTR &=0xFFFFBFFF; /*TIM23 clock source configuration*/
if (NewState==ENABLE)
SCU->CLKCNTR |=0x4000;
}
}
/*******************************************************************************
* Function Name : SCU_USBCLKConfig
* Description : Configures the clock source for the 48MHz USBCLK
* Input : USBCLK_Source: SCU_USBCLK_MCLK,SCU_USBCLK_MCLK2 or SCU_USBCLK_EXT
* Output : None
* Return : None
*******************************************************************************/
void SCU_USBCLKConfig(u32 USBCLK_Source)
{
SCU->CLKCNTR &=SCU_USBCLK_MCLK; /*clear USBSEL[1:0] field*/
if (USBCLK_Source!=SCU_USBCLK_MCLK)
SCU->CLKCNTR |= USBCLK_Source; /*update field with USBCLK_Source*/
}
/*******************************************************************************
* Function Name : SCU_PHYCLKConfig
* Description : Enable or Disable PHY clock output
* Input : NewState : ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void SCU_PHYCLKConfig(FunctionalState NewState)
{
if (NewState==ENABLE)
SCU->CLKCNTR |= 0x1000; /*enable MIIPHY clock*/
else
SCU->CLKCNTR &=~0x1000; /*disable MIIPHY clock*/
}
/*******************************************************************************
* Function Name : SCU_FMICLKDivisorConfig
* Description : Set the FMI clock divisor
* Input : FMICLK_Divisor: SCU_FMICLK_Div1 or SCU_FMICLK_DIV2
* Output : None
* Return : None
*******************************************************************************/
void SCU_FMICLKDivisorConfig(u32 FMICLK_Divisor)
{
SCU->CLKCNTR &=SCU_FMICLK_Div1; /*FMICLK = RCLK*/
if (FMICLK_Divisor!=SCU_FMICLK_Div1)
SCU->CLKCNTR |=SCU_FMICLK_Div2; /*FMICLK = RCLK/2 */
}
/*******************************************************************************
* Function Name : SCU_EMIBCLKDivisorConfig
* Description : Set the EMI Bus clock divisor: EMIBCLK = HCLK or HCLK/2
* Input : SCU_EMICLK: SCU_EMIBCLK_Div1 , SCU_EMIBCLK_Div2
* Output : None
* Return : None
*******************************************************************************/
void SCU_EMIBCLKDivisorConfig(u32 SCU_EMIBCLK)
{
SCU->CLKCNTR &=SCU_EMIBCLK_Div1; /*EMIBCLK = HCLK */
if (SCU_EMIBCLK!=SCU_EMIBCLK_Div1)
SCU->CLKCNTR |= SCU_EMIBCLK_Div2; /*EMIBCLK = HCLK/2 */
}
/*******************************************************************************
* Function Name : SCU_EMIModeConfig
* Description : Configure the EMI as Multiplexed or Demultiplexed
* Input : SCU_EMIMODE : SCU_EMI_MUX or SCU_EMI_DEMUX
* Output : None
* Return : None
*******************************************************************************/
void SCU_EMIModeConfig(u32 SCU_EMIMODE)
{
SCU->SCR0 &=SCU_EMI_MUX; /*EMI mode = Multiplexed*/
if (SCU_EMIMODE!=SCU_EMI_MUX)
SCU->SCR0 |= SCU_EMI_DEMUX; /*EMI mode = Demultiplexed*/
}
/*******************************************************************************
* Function Name : SCU_EMIALEConfig
* Description : Configure the ALE signal (length & polarity)
* Input : -SCU_EMIALE_LEN : SCU_EMIALE_LEN1 or SCU_EMIALE_LEN2
* -SCU_EMIALE_POL : SCU_EMIALE_POLLow or SCU_EMI_POLHigh
* Output : None
* Return : None
*******************************************************************************/
void SCU_EMIALEConfig(u32 SCU_EMIALE_LEN, u32 SCU_EMIALE_POL)
{
/*Configure EMI ALE Length*/
SCU->SCR0 &=SCU_EMIALE_LEN1;
if (SCU_EMIALE_LEN!=SCU_EMIALE_LEN1)
SCU->SCR0 |= SCU_EMIALE_LEN2;
/*Configure EMI ALE POL*/
SCU->SCR0 &=SCU_EMIALE_POLLow;
if (SCU_EMIALE_POL!=SCU_EMIALE_POLLow)
SCU->SCR0 |= SCU_EMIALE_POLHigh;
}
/*******************************************************************************
* Function Name : SCU_ITConfig
* Description : ENBALE or DISABLE an SCU interrupt
* Input : -SCU_IT: interrupt mask
* -NewState: ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void SCU_ITConfig(u32 SCU_IT, FunctionalState NewState)
{
if (NewState==ENABLE)
SCU->ITCMSK&=~SCU_IT; /*IT enable */
else
SCU->ITCMSK|=SCU_IT; /*IT disable( mask)*/
}
/*******************************************************************************
* Function Name : SCU_GetFlagStatus
* Description : Returns flag status
* Input : SCU_Flag
* Output : NONE
* Return : SET or RESET
*******************************************************************************/
FlagStatus SCU_GetFlagStatus(u32 SCU_Flag)
{
if (SCU->SYSSTATUS&SCU_Flag)
return SET;
else return RESET;
}
/*******************************************************************************
* Function Name : SCU_ClearFlag
* Description : Clears a SYSTATUS Flag
* Input : SCU_Flag
* Output : None
* Return : None
*******************************************************************************/
void SCU_ClearFlag(u32 SCU_Flag)
{
SCU->SYSSTATUS = SCU_Flag;
}
/*******************************************************************************
* Function Name : SCU_GetPLLfreqValue
* Description : Gets the current PLL frequency
* Input : None
* Output : None
* Return : PLL frequency (KHz)
*******************************************************************************/
u32 SCU_GetPLLFreqValue(void)
{
u8 PLL_M;
u8 PLL_N;
u8 PLL_P;
PLL_M = SCU->PLLCONF&0xFF;
PLL_N = (SCU->PLLCONF&0xFF00)>>8;
PLL_P = (SCU->PLLCONF&0x70000)>>16;
if ((PLL_M>0)&&(PLL_N>0))
return (u32)(((_Main_Crystal*2)*PLL_N)/(PLL_M<<PLL_P));
else return 0;
}
/*******************************************************************************
* Function Name : SCU_GetMCLKFreqValue
* Description : Gets the current MCLK frequency
* Input : None
* Output : None
* Return : MCLK frequency (KHz)
*******************************************************************************/
u32 SCU_GetMCLKFreqValue(void)
{
if ((SCU->CLKCNTR&0x3) == 0x2) return (u32)(_Main_Crystal);
if ((SCU->CLKCNTR&0x3) == 0x1) return (u32)(32);
else return (SCU_GetPLLFreqValue());
}
/*******************************************************************************
* Function Name : SCU_GetRCLKFreqValue
* Description : Gets the current RCLK frequency
* Input : None
* Output : None
* Return : RCLK frequency (KHz)
*******************************************************************************/
u32 SCU_GetRCLKFreqValue(void)
{
u8 RCLK_Div;
RCLK_Div = (SCU->CLKCNTR&0x1C)>>2;
if (RCLK_Div==0x5) RCLK_Div=10;
return (u32)(SCU_GetMCLKFreqValue() >>RCLK_Div);
}
/*******************************************************************************
* Function Name : SCU_GetHCLKFreqValue
* Description : Gets the current PCLK frequency
* Input : None
* Output : None
* Return : HCLK frequency (KHz)
*******************************************************************************/
u32 SCU_GetHCLKFreqValue(void)
{
u8 HCLK_Div;
HCLK_Div = (SCU->CLKCNTR&0x60)>>5;
return (u32)(SCU_GetRCLKFreqValue() >>HCLK_Div);
}
/*******************************************************************************
* Function Name : SCU_GetPCLKFreqValue
* Description : Gets the current HCLK frequency
* Input : None
* Output : None
* Return : PCLK frequency (KHz)
*******************************************************************************/
u32 SCU_GetPCLKFreqValue(void)
{
u8 PCLK_Div;
PCLK_Div = (SCU->CLKCNTR&0x180)>>7;
return (u32)(SCU_GetRCLKFreqValue() >>PCLK_Div);
}
/*******************************************************************************
* Function Name : SCU_WakeUpLineConfig
* Description : Configures an External interrupt as WakeUp line
* Input : EXTint : 0 -> 31
* Output : None
* Return : None
*******************************************************************************/
void SCU_WakeUpLineConfig(u8 EXTint)
{
if (EXTint < 8)
{
SCU->WKUPSEL&=~0x7;
SCU->WKUPSEL|=EXTint;
}
else if (EXTint<16)
{
SCU->WKUPSEL&=~0x38;
SCU->WKUPSEL|=(EXTint-8)<<3;
}
else if (EXTint<24)
{
SCU->WKUPSEL&=~0x1C0;
SCU->WKUPSEL|=(EXTint-16)<<6;
}
else
{
SCU->WKUPSEL&=~0xE00;
SCU->WKUPSEL|=(EXTint-24)<<9;
}
}
/*******************************************************************************
* Function Name : SCU_SpecIntRunModeConfig
* Description : Enables or Disables the Special Run mode
* Input : newstate = ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void SCU_SpecIntRunModeConfig(FunctionalState NewState)
{
if (NewState == ENABLE)
SCU->PWRMNG |=0x8;
else
SCU->PWRMNG &=~0x8;
}
/*******************************************************************************
* Function Name : SCU_EnterIdleMode
* Description : Enters in Idle mode
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void SCU_EnterIdleMode(void)
{
SCU->PWRMNG |=0x1;
}
/*******************************************************************************
* Function Name : SCU_EnterSleepMode
* Description : Enters in Sleep mode
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void SCU_EnterSleepMode(void)
{
SCU->PWRMNG |=0x2;
}
/*******************************************************************************
* Function Name : SCU_UARTIrDAConfig
* Description : Enable or Disable the Irda mode for UARTx
* Input : - SCU_UARTx :x=0,1 or 2
* - UART_IrDA_Mode : SCU_UARTMode_IrDA or SCU_UARTMode_UART
* Output : None
* Return : None
*******************************************************************************/
void SCU_UARTIrDASelect(u8 SCU_UARTx, u8 UART_IrDA_Mode)
{
if (UART_IrDA_Mode == SCU_UARTMode_IrDA)
{
if (SCU_UARTx== SCU_UART0) SCU->SCR0 |=0x400;
else if (SCU_UARTx== SCU_UART1) SCU->SCR0 |=0x800;
else SCU->SCR0 |=0x1000;
}
else
{
if (SCU_UARTx== SCU_UART0) SCU->SCR0 &=~0x400;
else if (SCU_UARTx== SCU_UART1) SCU->SCR0 &=~0x800;
else SCU->SCR0 &=~0x1000;
}
}
/*******************************************************************************
* Function Name : SCU_PFQBCCmd
* Description : Enable or Disable PFQBC
* Input : NewState : ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void SCU_PFQBCCmd(FunctionalState NewState)
{
if (NewState==ENABLE)
SCU->SCR0 |=0x1;
else SCU->SCR0 &=~0x1;
}
/*******************************************************************************
* Function Name : SCU_EMIByte_Select_Pinconfig
* Description : Enable or Disable the Byte selection pins behaviour(LFBGA only)
* Input : NewState : ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void SCU_EMIByte_Select_Pinconfig(FunctionalState NewState)
{
if (NewState==ENABLE)
SCU->GPIOEMI |= 0x04;
else
SCU->GPIOEMI &=~0x04;
}
/*******************************************************************************
* Function Name : SCU_EMIclock_Pinconfig
* Description : Enable or Disable the BCLK pin clock driving (LFBGA only)
* Input : NewState : ENABLE or DISABLE
* Output : None
* Return : None
*******************************************************************************/
void SCU_EMIclock_Pinconfig(FunctionalState NewState)
{
if (NewState==DISABLE)
SCU->GPIOEMI |= 0x02;
else
SCU->GPIOEMI &=~0x02;
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_ssp.c
0,0 → 1,466
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_ssp.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the SSP firmware functions.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "91x_ssp.h"
#include "91x_scu.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* SSP peripheral Enable */
#define SSP_Enable 0x0002
#define SSP_Disable 0xFFFD
/* SSP Loop Back Mode Enable */
#define SSP_LoopBackMode_Enable 0x0001
#define SSP_LoopBackMode_Disable 0xFFFE
/* SSP Flag Mask */
#define SSP_Flag_Mask 0x001F
/* SSP DMA transmit/ receive enable/disable Masks */
#define SSP_DMA_TransmitEnable 0x0002
#define SSP_DMA_TransmitDisable 0xFFFD
#define SSP_DMA_ReceiveEnable 0x0001
#define SSP_DMA_ReceiveDisable 0xFFFE
/* SSP Masks */
#define SSP_FrameFormat_Mask 0xFFCF
#define SSP_DataSize_Mask 0xFFF0
#define SSP_ClockRate_Mask 0x00FF
#define SSP_ClockPrescaler_Mask 0xFF00
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : SSP_DeInit
* Description : Deinitializes the SSPx peripheral registers to their default
* reset values.
* Input : SSPx: where x can be 0 or 1 to select the SSP peripheral.
* Output : None
* Return : None
*******************************************************************************/
void SSP_DeInit(SSP_TypeDef* SSPx)
{
if(SSPx == SSP0)
{
/* Reset the SSP0 registers values*/
SCU_APBPeriphReset(__SSP0,ENABLE);
SCU_APBPeriphReset(__SSP0,DISABLE);
}
else if (SSPx == SSP1)
{
/* Reset the SSP1 registers values*/
SCU_APBPeriphReset(__SSP1,ENABLE);
SCU_APBPeriphReset(__SSP1,DISABLE);
}
}
/*******************************************************************************
* Function Name : SSP_Init
* Description : Initializes the SSPx peripheral according to the specified
* parameters in the SSP_InitTypeDef structure.
* Input : - SSPx: where x can be 0 or 1 to select the SSP peripheral.
* - SSP_InitStruct: pointer to a SSP_InitTypeDef structure that
* contains the configuration information for the specified SSP
* peripheral.
* Output : None
* Return : None
*******************************************************************************/
void SSP_Init(SSP_TypeDef* SSPx, SSP_InitTypeDef* SSP_InitStruct)
{
if(SSP_InitStruct->SSP_FrameFormat == SSP_FrameFormat_Motorola)
{
/* Set the Motorola frame format */
SSPx->CR0 &= SSP_FrameFormat_Motorola;
/* Configure the Clock polarity */
if(SSP_InitStruct->SSP_CPOL == SSP_CPOL_High)
{
/* SCK is held high when no data is being transfered */
SSPx->CR0 |= SSP_CPOL_High;
}
else
{
/* SCK is held low when no data is being transfered */
SSPx->CR0 &= SSP_CPOL_Low;
}
/* Configure the Clock Phase */
if(SSP_InitStruct->SSP_CPHA == SSP_CPHA_2Edge)
{
/* Data captured on second clock edge */
SSPx->CR0 |= SSP_CPHA_2Edge;
}
else
{
/* Data captured on first clock edge */
SSPx->CR0 &= SSP_CPHA_1Edge;
}
}
/* Configure the Frame format */
else
{
/* Clear the FRF[1:0] bits */
SSPx->CR0 &= SSP_FrameFormat_Mask;
/* Set the TI frame format */
SSPx->CR0 |= SSP_InitStruct->SSP_FrameFormat;
}
/* Configure the Mode */
if(SSP_InitStruct->SSP_Mode == SSP_Mode_Slave)
{
/* Set the slave mode */
SSPx->CR1 |= SSP_Mode_Slave;
/* Configure the Slave output */
if(SSP_InitStruct->SSP_SlaveOutput == SSP_SlaveOutput_Disable)
{
/* Slave output disabled */
SSPx->CR1 |= SSP_SlaveOutput_Disable;
}
else
{
/* Slave output enabled */
SSPx->CR1 &= SSP_SlaveOutput_Enable;
}
}
else
{
/* Set the master mode */
SSPx->CR1 &= SSP_Mode_Master;
/* Clear clock rate SCR[7:0] bits */
SSPx->CR0 &= SSP_ClockRate_Mask;
/* Set the serial clock rate */
SSPx->CR0 |= (SSP_InitStruct->SSP_ClockRate<<8);
/* Clear clock prescaler CPSDVSR[7:0] bits */
SSPx->PR &= SSP_ClockPrescaler_Mask;
/* Set the serial clock prescaler */
SSPx->PR |= SSP_InitStruct->SSP_ClockPrescaler;
}
/* Clear data size DSS[3:0] bits */
SSPx->CR0 &= SSP_DataSize_Mask;
/* Set the data size */
SSPx->CR0 |= SSP_InitStruct->SSP_DataSize;
}
/*******************************************************************************
* Function Name : SSP_StructInit
* Description : Fills in a SSP_InitTypeDef structure with the reset value of
* each parameter.
* Input : SSP_InitStruct : pointer to a SSP_InitTypeDef structure
which will be initialized.
* Output : None
* Return : None
*******************************************************************************/
void SSP_StructInit(SSP_InitTypeDef* SSP_InitStruct)
{
/* Initialize the SSP_FrameFormat member */
SSP_InitStruct->SSP_FrameFormat = SSP_FrameFormat_Motorola;
/* Initialize the SSP_Mode member */
SSP_InitStruct->SSP_Mode = SSP_Mode_Master;
/* Initialize the SSP_CPOL member */
SSP_InitStruct->SSP_CPOL = SSP_CPOL_Low;
/* Initialize the SSP_CPHA member */
SSP_InitStruct->SSP_CPHA = SSP_CPHA_1Edge;
/* Initialize the SSP_DataSize member */
SSP_InitStruct->SSP_DataSize = SSP_DataSize_8b;
/* Initialize the SSP_SlaveOutput member */
SSP_InitStruct->SSP_SlaveOutput = SSP_SlaveOutput_Enable;
/* Initialize the SSP_ClockRate member */
SSP_InitStruct->SSP_ClockRate = 0;
/* Initialize the SSP_ClockPrescaler member */
SSP_InitStruct->SSP_ClockPrescaler = 0;
}
/*******************************************************************************
* Function Name : SSP_Cmd
* Description : Enables or disables the specified SSP peripheral.
* Input : - SSPx: where x can be 0 or 1 to select the SSP peripheral.
* - NewState: new state of the SSPx peripheral. This parameter
* can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void SSP_Cmd(SSP_TypeDef* SSPx, FunctionalState NewState)
{
if(NewState == ENABLE)
{
/* Enable the SSP peripheral */
SSPx->CR1 |= SSP_Enable;
}
else
{
/* Disable the SSP peripheral */
SSPx->CR1 &= SSP_Disable;
}
}
/*******************************************************************************
* Function Name : SSP_ITConfig
* Description : Enables or disables the specified SSP interrupts.
* Input : - SSPx: where x can be 0 or 1 to select the SSP peripheral.
* - SSP_IT: specifies the SSP interrupts sources to be enabled
* or disabled. This parameter can be any combination of the
* following values:
* - SSP_IT_TxFifo: Transmit FIFO half empty or less interrupt
* - SSP_IT_RxFifo: Receive FIFO half full or less interrupt
* - SSP_IT_RxTimeOut: Receive timeout interrupt
* - SSP_IT_RxOverrun: Receive overrun interrupt
* - NewState: new state of the specified SSP interrupts.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void SSP_ITConfig(SSP_TypeDef* SSPx, u16 SSP_IT, FunctionalState NewState)
{
if(NewState == ENABLE)
{
/* Enable the selected SSP interrupts */
SSPx->IMSCR |= SSP_IT;
}
else
{
/* Disable the selected SSP interrupts */
SSPx->IMSCR &= ~SSP_IT;
}
}
/*******************************************************************************
* Function Name : SSP_DMACmd
* Description : Configures the SSP0 DMA interface.
* Input : - SSPx: where x can be 0 or 1 to select the SSP peripheral.
* - SSP_DMATransfert : specifies the DMA transfert to be
* enabled or disabled. This parameter can be one of the
* following values:
* - SSP_DMA_Transmit: transmit Fifo DMA transfert
* - SSP_DMA_Receive : receive Fifo DMA transfert
* - NewState: new state of the DMA transfert.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void SSP_DMACmd(SSP_TypeDef* SSPx, u16 SSP_DMATransfert, FunctionalState NewState)
{
if(NewState == ENABLE)
{
if(SSP_DMATransfert == SSP_DMA_Transmit)
{
/* Enable DMA for the transmit FIFO */
SSPx->DMACR |= SSP_DMA_TransmitEnable;
}
else
{
/* Enable DMA for the receive FIFO */
SSPx->DMACR |= SSP_DMA_ReceiveEnable;
}
}
else
{
if(SSP_DMATransfert == SSP_DMA_Transmit)
{
/* Disable DMA for the transmit FIFO */
SSPx->DMACR &= SSP_DMA_TransmitDisable;
}
else
{
/* Disable DMA for the receive FIFO */
SSPx->DMACR &= SSP_DMA_ReceiveDisable;
}
}
}
/*******************************************************************************
* Function Name : SSP_SendData.
* Description : Transmits a Data through the SSP peripheral.
* Input : - SSPx: where x can be 0 or 1 to select the SSP peripheral.
* - Data : Data to be transmitted.
* Output : None
* Return : None
*******************************************************************************/
void SSP_SendData(SSP_TypeDef* SSPx, u16 Data)
{
/* Write in the DR register the data to be sent */
SSPx->DR = Data;
}
/*******************************************************************************
* Function Name : SSP_ReceiveData.
* Description : Returns the most recent received data by the SSP peripheral.
* Input : SSPx: where x can be 0 or 1 to select the SSP peripheral.
* Output : None
* Return : The value of the received data.
*******************************************************************************/
u16 SSP_ReceiveData(SSP_TypeDef* SSPx)
{
/* Return the data in the DR register */
return SSPx->DR;
}
/*******************************************************************************
* Function Name : SSP_LoopBackConfig
* Description : Enable or disable the Loop back mode for the selected SSPx peripheral.
* Input : - SSPx: where x can be 0 or 1 to select the SSP peripheral.
* - NewState: new state of the Loop Back mode.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None.
*******************************************************************************/
void SSP_LoopBackConfig(SSP_TypeDef* SSPx, FunctionalState NewState)
{
if(NewState == ENABLE)
{
/* Enable loop back mode */
SSPx->CR1 |= SSP_LoopBackMode_Enable;
}
else
{
/* Disable loop back mode */
SSPx->CR1 &= SSP_LoopBackMode_Disable;
}
}
/*******************************************************************************
* Function Name : SSP_GetFlagStatus
* Description : Checks whether the specified SSP flag is set or not.
* Input : - SSPx: where x can be 0 or 1 to select the SSP peripheral.
* - SSP_FLAG: flag to check. This parameter can be one of the
* following values:
* - SSP_FLAG_Busy: busy flag
* - SSP_FLAG_RxFifoFull: Receive FIFO full flag
* - SSP_FLAG_RxFifoNotEmpty: Receive FIFO not empty flag
* - SSP_FLAG_TxFifoNotFull: Transmit FIFO not full flag
* - SSP_FLAG_TxFifoEmpty: Transmit FIFO empty flag
* - SSP_FLAG_TxFifo: Transmit FIFO half empty or less flag
* - SSP_FLAG_RxFifo: Receive FIFO half full or less flag
* - SSP_FLAG_RxTimeOut: Receive timeout flag
* - SSP_FLAG_RxOverrun: Receive overrun flag
* Output : None
* Return : The new state of SSP_Flag (SET or RESET).
*******************************************************************************/
FlagStatus SSP_GetFlagStatus(SSP_TypeDef* SSPx, u16 SSP_FLAG)
{
u32 SSPReg = 0, FlagPos = 0;
u32 StatusReg = 0;
/* Get the SSP register index */
SSPReg = SSP_FLAG >> 5;
/* Get the flag position */
FlagPos = SSP_FLAG & SSP_Flag_Mask;
/* Find the register of the flag to check */
if(SSPReg == 1)
{
/* The flag to check is in SR register */
StatusReg = SSPx->SR;
}
else if (SSPReg == 2)
{
/* The flag to check is in RISR register */
StatusReg = SSPx->RISR;
}
/* Check the status of the specified SSP flag */
if((StatusReg & (1 << FlagPos)) != RESET)
{
/* Return SET if the SSP flag is set */
return SET;
}
else
{
/* Return RESET if the SSP flag is reset */
return RESET;
}
}
/*******************************************************************************
* Function Name : SSP_ClearFlag
* Description : Clears the SSPx flags.
* Input : - SSPx: where x can be 0 or 1 to select the SSP peripheral.
* - SSP_FLAG: flags to clear. This parameter one of the
* following values:
* - SSP_FLAG_RxTimeOut: Receive timeout flag
* - SSP_FLAG_RxOverrun: Receive overrun flag
* Output : None
* Return : None
*******************************************************************************/
void SSP_ClearFlag(SSP_TypeDef* SSPx, u16 SSP_FLAG)
{
u8 FlagPos = 0;
/* Get the flag position */
FlagPos = SSP_FLAG & SSP_Flag_Mask;
/* Clear the selected SSP flag */
SSPx->ICR = (1 << FlagPos);
}
/*******************************************************************************
* Function Name : SSP_GetITStatus
* Description : Checks whether the specified SSP interrupt flag is set or not.
* Input : - SSPx: where x can be 0 or 1 to select the SSP peripheral.
* - SSP_IT: interrupt flag to check. This parameter can be one
* of the following values:
* - SSP_IT_TxFifo: Transmit FIFO half empty or less interrupt
* - SSP_IT_RxFifo: Receive FIFO half full or less interrupt
* - SSP_IT_RxTimeOut: Receive timeout interrupt
* - SSP_IT_RxOverrun: Receive overrun interrupt
* Output : None
* Return : The new state of SSP_IT flag (SET or RESET).
*******************************************************************************/
ITStatus SSP_GetITStatus(SSP_TypeDef* SSPx, u16 SSP_IT)
{
/* Check the status of the specified interrupt flag */
if((SSPx->MISR & SSP_IT) != RESET)
{
/* Return SET if the SSP interrupt flag is set */
return SET;
}
else
{
/* Return RESET if SSP interrupt flag is reset */
return RESET;
}
}
/*******************************************************************************
* Function Name : SSP_ClearITPendingBit
* Description : Clears the pending interrupt flags.
* Input : - SSPx: where x can be 0 or 1 to select the SSP peripheral.
* - SSP_IT: interrupts pending bits to clear. This parameter
* can be any combination of the following values:
* - SSP_IT_RxTimeOut: Receive timeout interrupt
* - SSP_IT_RxOverrun: Receive overrun interrupt
* Output : None
* Return : None
*******************************************************************************/
void SSP_ClearITPendingBit(SSP_TypeDef* SSPx, u16 SSP_IT)
{
/* Clear the selected SSP interrupts pending bits */
SSPx->ICR = SSP_IT;
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_tim.c
0,0 → 1,688
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_tim.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the TIM firmware functions.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH
* CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS
* A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
* OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
* OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
* CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "91x_tim.h"
/* Include of other module interface headers ---------------------------------*/
/* Local includes ------------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* TIM Bits Masks */
#define TIM_PWM_MASK 0x0010
#define TIM_OPM_MASK 0x0020
#define TIM_OC1_ENABLE_MASK 0x0040
#define TIM_OC1_DISABLE_MASK 0xFFBF
#define TIM_OC2_ENABLE_MASK 0x0080
#define TIM_OC2_DISABLE_MASK 0xFF7F
#define TIM_OLVL1_SET_MASK 0x0100
#define TIM_OLVL1_RESET_MASK 0xFEFF
#define TIM_OLVL2_SET_MASK 0x0200
#define TIM_OLVL2_RESET_MASK 0xFDFF
#define TIM_ENABLE_MASK 0x8000
#define TIM_DISABLE_MASK 0x7FFF
#define TIM_DMA_CLEAR_MASK 0xCFFF
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Interface functions -------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : TIM_DeInit
* Description : Initializes TIM peripheral control and registers to their
* : default reset values.
* Input : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Output : None
* Return : None
*******************************************************************************/
void TIM_DeInit(TIM_TypeDef *TIMx)
{
if((TIMx == TIM0)||(TIMx == TIM1))
{
SCU_APBPeriphReset(__TIM01, DISABLE); /* TIM0 & TIM1 Reset's off */
}
else
{
SCU_APBPeriphReset(__TIM23, DISABLE); /* TIM2 & TIM3 Reset's off */
}
/* Set all the TIMx registers to thier default values */
TIMx->OC1R = 0x8000;
TIMx->OC2R = 0x8000;
TIMx->CR1 = 0x0;
TIMx->CR2 = 0x1;
TIMx->CNTR = 0x1234;
TIMx->SR = 0x0;
}
/*******************************************************************************
* Function Name : TIM_StructInit
* Description : Fills in a TIM_InitTypeDef structure with the reset value of
* each parameter.
* Input : TIM_InitStruct : pointer to a TIM_InitTypeDef structure
which will be initialized.
* Output : None
* Return : None.
*******************************************************************************/
void TIM_StructInit(TIM_InitTypeDef *TIM_InitStruct)
{
TIM_InitStruct->TIM_Mode = 0x0000;
TIM_InitStruct->TIM_OC1_Modes = 0x0000;
TIM_InitStruct->TIM_OC2_Modes = 0x0000;
TIM_InitStruct->TIM_Clock_Source = 0x0000;
TIM_InitStruct->TIM_Clock_Edge = 0x0000;
TIM_InitStruct->TIM_OPM_INPUT_Edge = 0x0000;
TIM_InitStruct->TIM_ICAP1_Edge = 0x0000;
TIM_InitStruct->TIM_ICAP2_Edge = 0x0000;
TIM_InitStruct->TIM_Prescaler = 0x0000;
TIM_InitStruct->TIM_Pulse_Level_1 = 0x0000;
TIM_InitStruct->TIM_Pulse_Level_2 = 0x0000;
TIM_InitStruct->TIM_Period_Level = 0x0000;
TIM_InitStruct->TIM_Pulse_Length_1 = 0x0000;
TIM_InitStruct->TIM_Pulse_Length_2 = 0x0000;
TIM_InitStruct->TIM_Full_Period = 0x0000;
}
/*******************************************************************************
* Function Name : TIM_Init
* Description : Initializes TIM peripheral according to the specified
* parameters in the TIM_InitTypeDef structure.
* Input1 : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Input2 : TIM_InitStruct: pointer to a TIM_InitTypeDef structure that
* contains the configuration information for the specified
* TIM peripheral.
* Output : None
* Return : None
*******************************************************************************/
void TIM_Init(TIM_TypeDef *TIMx, TIM_InitTypeDef *TIM_InitStruct)
{
/***************************** Clock configuration ****************************/
if (TIM_InitStruct->TIM_Clock_Source == TIM_CLK_APB)
{
/* APB clock */
TIMx->CR1 &= TIM_CLK_APB;
}
else
{
/* External clock */
TIMx->CR1 |= TIM_CLK_EXTERNAL;
if (TIM_InitStruct->TIM_Clock_Edge == TIM_CLK_EDGE_RISING)
{
/* Clock rising edge */
TIMx->CR1 |= TIM_CLK_EDGE_RISING;
}
else
{
/* Clock falling edge */
TIMx->CR1 &= TIM_CLK_EDGE_FALLING;
}
}
/************************** Prescaler configuration ***************************/
TIMx->CR2 =( TIMx->CR2 & 0xFF00 )|TIM_InitStruct->TIM_Prescaler ;
/********************************** TIM Modes *********************************/
switch ( TIM_InitStruct->TIM_Mode)
{
/******************************* PWM Input mode *******************************/
case TIM_PWMI:
/* Set the PWMI Bit */
TIMx->CR1 |= TIM_PWMI;
/* Set the first edge Level */
if ( TIM_InitStruct->TIM_ICAP1_Edge == TIM_ICAP1_EDGE_RISING)
{
TIMx->CR1 |= TIM_ICAP1_EDGE_RISING;
}
else
{
TIMx->CR1 &= TIM_ICAP1_EDGE_FALLING;
}
/* Set the Second edge Level ( Opposite of the first level ) */
if ( TIM_InitStruct->TIM_ICAP1_Edge == TIM_ICAP1_EDGE_RISING)
{
TIMx->CR1 &= TIM_ICAP2_EDGE_FALLING;
}
else
{
TIMx->CR1 |= TIM_ICAP2_EDGE_RISING;
}
break;
/************************** Output compare channel 1 **************************/
case TIM_OCM_CHANNEL_1:
if (TIM_InitStruct->TIM_Pulse_Level_1 == TIM_HIGH)
{
TIMx->CR1 |= TIM_OLVL1_SET_MASK;
}
else
{
TIMx->CR1 &= TIM_OLVL1_RESET_MASK;
}
TIMx->OC1R = TIM_InitStruct->TIM_Pulse_Length_1;
if (TIM_InitStruct->TIM_OC1_Modes == TIM_TIMING)
{
TIMx->CR1 &= TIM_OC1_DISABLE_MASK;
}
else
{
TIMx->CR1 |= TIM_OC1_ENABLE_MASK;
}
break;
/************************** Output compare channel 2 **************************/
case TIM_OCM_CHANNEL_2:
if (TIM_InitStruct->TIM_Pulse_Level_2 == TIM_HIGH)
{
TIMx->CR1 |= TIM_OLVL2_SET_MASK;
}
else
{
TIMx->CR1 &= TIM_OLVL2_RESET_MASK;
}
TIMx->OC2R = TIM_InitStruct->TIM_Pulse_Length_2;
if (TIM_InitStruct->TIM_OC2_Modes == TIM_TIMING)
{
TIMx->CR1 &= TIM_OC2_DISABLE_MASK;
}
else
{
TIMx->CR1 |= TIM_OC2_ENABLE_MASK;
}
break;
/************************ Output compare channel 1 & 2 ************************/
case TIM_OCM_CHANNEL_12:
TIMx->OC2R = TIM_InitStruct->TIM_Pulse_Length_2;
TIMx->OC1R = TIM_InitStruct->TIM_Pulse_Length_1;
if (TIM_InitStruct->TIM_OC2_Modes == TIM_TIMING)
{
TIMx->CR1 &= TIM_OC2_DISABLE_MASK;
}
else
{
TIMx->CR1 |= TIM_OC2_ENABLE_MASK;
}
if (TIM_InitStruct->TIM_OC1_Modes == TIM_TIMING)
{
TIMx->CR1 &= TIM_OC1_DISABLE_MASK;
}
else
{
TIMx->CR1 |= TIM_OC1_ENABLE_MASK;
}
if (TIM_InitStruct->TIM_Pulse_Level_1 == TIM_HIGH)
{
TIMx->CR1 |= TIM_OLVL1_SET_MASK;
}
else
{
TIMx->CR1 &= TIM_OLVL1_RESET_MASK;
}
if (TIM_InitStruct->TIM_Pulse_Level_2 == TIM_HIGH)
{
TIMx->CR1 |= TIM_OLVL2_SET_MASK;
}
else
{
TIMx->CR1 &= TIM_OLVL2_RESET_MASK;
}
break;
/********************************** PWM mode **********************************/
case TIM_PWM:
/* Set the Level During the pulse */
if ( TIM_InitStruct->TIM_Pulse_Level_1 == TIM_HIGH)
{
TIMx->CR1 |= TIM_OLVL2_SET_MASK;
}
else
{
TIMx->CR1 &= TIM_OLVL2_RESET_MASK;
}
/* Set the Level after the pulse */
if (TIM_InitStruct->TIM_Period_Level == TIM_HIGH)
{
TIMx->CR1 |= TIM_OLVL1_SET_MASK;
}
else
{
TIMx->CR1 &= TIM_OLVL1_RESET_MASK;
}
/* Set the OCAE */
TIMx->CR1 |= TIM_OC1_ENABLE_MASK;
/* Set the PWM Bit */
TIMx->CR1 |= TIM_PWM_MASK;
/* Set the Duty Cycle value */
TIMx->OC1R = TIM_InitStruct->TIM_Pulse_Length_1 ;
/* Set the Full Period */
TIMx->OC2R = TIM_InitStruct->TIM_Full_Period ;
break;
/******************************* One pulse mode *******************************/
case TIM_OPM:
/* Set the Level During the pulse */
if (TIM_InitStruct->TIM_Pulse_Level_1 == TIM_HIGH)
{
TIMx->CR1 |= TIM_OLVL2_SET_MASK;
}
/* Set the Level after the pulse */
if (TIM_InitStruct->TIM_Period_Level == TIM_HIGH)
{
TIMx->CR1 |= TIM_OLVL1_SET_MASK;
}
/* Set the Activation Edge on the ICAP 1 */
if (TIM_InitStruct->TIM_OPM_INPUT_Edge == TIM_OPM_EDGE_RISING)
{
TIMx->CR1 |= TIM_OPM_EDGE_RISING;
}
/* Set the Output Compare Function */
TIMx->CR1 |= TIM_OC1_ENABLE_MASK;
/* Set the One pulse mode */
TIMx->CR1 |= TIM_OPM_MASK;
/* Set the Pulse length */
TIMx->OC1R = TIM_InitStruct->TIM_Pulse_Length_1;
break;
/*************************** Input capture channel 1 **************************/
case TIM_ICAP_CHANNEL_1:
if (TIM_InitStruct->TIM_ICAP1_Edge == TIM_ICAP1_EDGE_RISING)
{
TIMx->CR1 |= TIM_ICAP1_EDGE_RISING;
}
else
{
TIMx->CR1 &= TIM_ICAP1_EDGE_FALLING;
}
break;
/*************************** Input capture channel 2 **************************/
case TIM_ICAP_CHANNEL_2:
if (TIM_InitStruct->TIM_ICAP2_Edge == TIM_ICAP2_EDGE_RISING)
{
TIMx->CR1 |= TIM_ICAP2_EDGE_RISING;
}
else
{
TIMx->CR1 &= TIM_ICAP2_EDGE_FALLING;
}
break;
/************************* Input capture channel 1 & 2 ************************/
case TIM_ICAP_CHANNEL_12:
if (TIM_InitStruct->TIM_ICAP2_Edge == TIM_ICAP2_EDGE_RISING)
{
TIMx->CR1 |= TIM_ICAP2_EDGE_RISING;
}
else
{
TIMx->CR1 &= TIM_ICAP2_EDGE_FALLING;
}
if (TIM_InitStruct->TIM_ICAP1_Edge == TIM_ICAP1_EDGE_RISING)
{
TIMx->CR1 |= TIM_ICAP1_EDGE_RISING;
}
else
{
TIMx->CR1 &= TIM_ICAP1_EDGE_FALLING;
}
break;
default:
break;
}
}
/*******************************************************************************
* Function Name : TIM_CounterCmd
* Description : Enables or disables TIMx Counter peripheral.
* Input1 : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Input2 : TIM_operation: specifies the new state of the TIMx Counter.
* This parameter can be one of the following values:
* - TIM_START: Start the timer counter.
* - TIM_STOP : Stop the timer counter.
* - TIM_CLEAR: Clear the timer counter.
* Output : None
* Return : None
*******************************************************************************/
void TIM_CounterCmd(TIM_TypeDef *TIMx, TIM_CounterOperations TIM_operation)
{
switch (TIM_operation)
{
case TIM_START:
TIMx->CR1 |= TIM_ENABLE_MASK;
break;
case TIM_STOP:
TIMx->CR1 &= TIM_DISABLE_MASK;
break;
case TIM_CLEAR:
TIMx->CNTR = 0x1234;
break;
default:
break;
}
}
/*******************************************************************************
* Function Name : TIM_PrescalerConfig
* Description : This routine is used to configure the TIMx prescaler value
* (when using the APB clock).
* Input1 : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Input2 : TIM_Prescaler: specifies the prescaler value. This parameter
* can be a value from 0x0 to 0xFF.
* Output : None
* Return : None
*******************************************************************************/
void TIM_PrescalerConfig(TIM_TypeDef *TIMx, u8 TIM_Prescaler)
{
TIMx->CR2 &= 0xFF00;
TIMx->CR2 |= TIM_Prescaler;
}
/*******************************************************************************
* Function Name : TIM_GetPrescalerValue
* Description : This routine is used to get the TIMx prescaler value
* (when using the APB clock).
* Input : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Output : None
* Return : The prescaler value.
*******************************************************************************/
u8 TIM_GetPrescalerValue(TIM_TypeDef *TIMx)
{
return TIMx->CR2 & 0x00FF;
}
/*******************************************************************************
* Function Name : TIM_GetCounterValue
* Description : This routine is used to get the TIMx counter value.
* Input : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Output : None
* Return : The counter value.
*******************************************************************************/
u16 TIM_GetCounterValue(TIM_TypeDef *TIMx)
{
return TIMx->CNTR;
}
/*******************************************************************************
* Function Name : TIM_GetICAP1Value
* Description : This routine is used to get the Input Capture 1 value.
* Input : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Output : None
* Return : The Input Capture 1 value.
*******************************************************************************/
u16 TIM_GetICAP1Value(TIM_TypeDef *TIMx)
{
return TIMx->IC1R;
}
/*******************************************************************************
* Function Name : TIM_GetICAP2Value
* Description : This routine is used to get the Input Capture 2 value.
* Input : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Output : None
* Return : The Input Capture 2 value.
*******************************************************************************/
u16 TIM_GetICAP2Value(TIM_TypeDef *TIMx)
{
return TIMx->IC2R;
}
/*******************************************************************************
* Function Name : TIM_SetPulse
* Description : This routine is used to set the pulse value.
* Input1 : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Input2 : TIM_Channel: specifies the needed channel.
* This parameter can be one of the following values:
* - TIM_PWM_OC1_Channel: PWM/Output Compare 1 Channel
* - TIM_OC2_Channel : Output Compare 2 Channel
* Input3 : TIM_Pulse: specifies the new pulse value.
* Output : None
* Return : None
*******************************************************************************/
void TIM_SetPulse(TIM_TypeDef *TIMx,u16 TIM_Channel ,u16 TIM_Pulse)
{
if (TIM_Channel == TIM_PWM_OC1_Channel)
{
TIMx->OC1R = TIM_Pulse;
}
else
{
TIMx->OC2R = TIM_Pulse;
}
}
/*******************************************************************************
* Function Name : TIM_GetFlagStatus
* Description : Checks whether the specified TIMx flag is set or not.
* Input1 : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Input2 : TIM_Flag: specifies the flag to check.
* This parameter can be one of the following values:
* - TIM_FLAG_IC1: Input Capture Channel 1 Flag
* - TIM_FLAG_IC2: Input Capture Channel 2 Flag
* - TIM_FLAG_TO : Timer Overflow Flag
* - TIM_FLAG_OC1: Output Compare Channel 1 Flag
* - TIM_FLAG_OC2: Output Compare Channel 2 Flag
* Output : None
* Return : The NewState of the TIM_Flag (SET or RESET).
*******************************************************************************/
FlagStatus TIM_GetFlagStatus(TIM_TypeDef *TIMx, u16 TIM_Flag)
{
if((TIMx->SR & TIM_Flag) == RESET)
{
return RESET;
}
else
{
return SET;
}
}
/*******************************************************************************
* Function Name : TIM_ClearFlag
* Description : Clears the TIM Flag passed as a parameter.
* Input1 : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Input2 : TIM_Flag: specifies the flag to clear.
* This parameter can be one of the following values:
* - TIM_FLAG_IC1: Input Capture Channel 1 Flag
* - TIM_FLAG_IC2: Input Capture Channel 2 Flag
* - TIM_FLAG_TO : Timer Overflow Flag
* - TIM_FLAG_OC1: Output Compare Channel 1 Flag
* - TIM_FLAG_OC2: Output Compare Channel 2 Flag
* Output : None
* Return : None
*******************************************************************************/
void TIM_ClearFlag(TIM_TypeDef *TIMx, u16 TIM_Flag)
{
/* Clear TIM_Flag */
TIMx->SR &= ~TIM_Flag;
}
/*******************************************************************************
* Function Name : TIM_GetPWMIPulse
* Description : This routine is used to get the Pulse value in PWMI Mode.
* Input : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Output : None
* Return : The pulse value.
*******************************************************************************/
u16 TIM_GetPWMIPulse(TIM_TypeDef *TIMx)
{
return TIMx->IC2R;
}
/*******************************************************************************
* Function Name : TIM_GetPWMIPeriod
* Description : This routine is used to get the Period value in PWMI Mode.
* Input : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Output : None
* Return : The period value.
*******************************************************************************/
u16 TIM_GetPWMIPeriod(TIM_TypeDef *TIMx)
{
return TIMx->IC1R;
}
/*******************************************************************************
* Function Name : TIM_ITConfig
* Description : Configures the Timer interrupt source.
* Input1 : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Input2 : TIM_IT: specifies the TIM interrupt source to be enabled.
* This parameter can be one of the following values:
* - TIM_IT_IC1: Input Capture 1 Interrupt source.
* - TIM_IT_OC1: Output Compare 1 Interrupt source.
* - TIM_IT_TO : Timer Overflow Interrupt source.
* - TIM_IT_IC2: Input Capture 2 Interrupt source.
* - TIM_IT_OC2: Output Compare 2 Interrupt source.
* Input3 : TIM_Newstate: specifies the new state of the TIMx IT.
* This parameter can be one of the following values:
* - ENABLE : Enable the needed interrupt.
* - DISABLE: Disable the needed interrupt.
* Output : None
* Return : None
*******************************************************************************/
void TIM_ITConfig(TIM_TypeDef *TIMx, u16 TIM_IT, FunctionalState TIM_Newstate)
{
if(TIM_Newstate == ENABLE)
{
TIMx->CR2 = (TIMx->CR2 & 0x00FF) | TIM_IT;
}
else
{
TIMx->CR2 &= ~TIM_IT;
}
}
/*******************************************************************************
* Function Name : TIM_DMAConfig
* Description : Configures the Timer DMA source.
* Input1 : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Input2 : TIM_DMA_Souces: specifies the TIM DMA source to be selected.
* This parameter can be one of the following values:
* - TIM_DMA_IC1: Input Capture 1 DMA source.
* - TIM_DMA_OCA1 Output Compare 1 DMA source.
* - TIM_DMA_TO: Timer Overflow DMA source.
* - TIM_DMA_IC2: Input Capture 2 DMA source.
* - TIM_DMA_OC2: Output Compare 2 DMA source.
* Output : None
* Return : None
*******************************************************************************/
void TIM_DMAConfig(TIM_TypeDef *TIMx, u16 TIM_DMA_Sources)
{
/* Reset the DMAS[1:0] bits */
TIMx->CR1 &= TIM_DMA_CLEAR_MASK;
/* Set the DMAS[1:0] bits according to TIM_DMA_Sources parameter */
TIMx->CR1 |= TIM_DMA_Sources;
}
/*******************************************************************************
* Function Name : TIM_DMACmd
* Description : Enables or disables TIMx DMA peripheral.
* Input1 : TIMx: where x can be from 0 to 3 to select the TIM
* peripheral.
* Input2 : TIM_Newstate: new state of the TIMx DMA peripheral
* This parameter can be one of the following values:
* - ENABLE : Enable the TIMx DMA.
* - DISABLE: Disable the TIMx DMA.
* Output : None
* Return : None
*******************************************************************************/
void TIM_DMACmd(TIM_TypeDef *TIMx, FunctionalState TIM_Newstate)
{
if (TIM_Newstate == ENABLE)
{
TIMx->CR2 |= TIM_DMA_ENABLE;
}
else
{
TIMx->CR2 &= TIM_DMA_DISABLE;
}
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_uart.c
0,0 → 1,658
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_uart.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the UART firmware functions.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "91x_uart.h"
#include "91x_scu.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* UART IrDA Mask */
#define UART_IrDA_Disable_Mask 0xFFFD /* IrDA Disable Mask */
#define UART_IrDA_Enable_Mask 0x0002 /* IrDA Enable Mask */
#define IrDA_LowPower_Enable_Mask 0x0004 /*IrDA lower power mode enable*/
#define IrDA_LowPower_Disable_Mask 0xFFFB /*IrDA lower power mode enable*/
/* UART Mask */
#define UART_Enable_Mask 0x0001 /* UART Enable Mask */
#define UART_Disable_Mask 0xFFFE /* UART Disable Mask */
/* UART LoopBack */
#define UART_LoopBack_Disable_Mask 0xFF7F /* LoopBack Disable Mask */
#define UART_LoopBack_Enable_Mask 0x0080 /* LoopBack Enable Mask */
#define UART_WordLength_Mask 0xFF9F /* UART Word Length Mask */
#define UART_Parity_Mask 0xFF79 /* UART Parity Mask */
#define UART_HardwareFlowControl_Mask 0x3FFF /* UART Hardware Flow Control Mask */
#define UART_TxRxFIFOLevel_Mask 0xFFC0 /* UART Tx Rx FIFO Level Mask */
#define UART_BreakChar_Mask 0x0001 /* UART Break Character send Mask*/
#define UART_FLAG_Mask 0x1F /* UART Flag Mask */
#define UART_Mode_Mask 0xFCFF /* UART Mode Mask */
#define UART_RTS_LowLevel_Mask 0x0800 /* RTS signal is low */
#define UART_RTS_HighLevel_Mask 0xF7FF /* RTS signal is High */
#define UART_DTR_LowLevel_Mask 0x0400 /* DTR signal is low */
#define UART_DTR_HighLevel_Mask 0xFBFF /* DTR signal is High */
#define UART_ClearFlag_Mask 0xAA /* Clear Flag Mask */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : UART_DeInit
* Description : Deinitializes the UARTx peripheral registers
* to their default reset values.
* Input : UARTx: where x can be 0,1 or 2 to select the UART peripheral.
* Output : None
* Return : None
*******************************************************************************/
void UART_DeInit(UART_TypeDef* UARTx)
{
/* Reset the UARTx registers values */
if(UARTx == UART0)
{
SCU_APBPeriphReset(__UART0,ENABLE);
SCU_APBPeriphReset(__UART0,DISABLE);
}
else if(UARTx == UART1)
{
SCU_APBPeriphReset(__UART1,ENABLE);
SCU_APBPeriphReset(__UART1,DISABLE);
}
else if(UARTx == UART2)
{
SCU_APBPeriphReset(__UART2,ENABLE);
SCU_APBPeriphReset(__UART2,DISABLE);
}
}
/*******************************************************************************
* Function Name : UART_Init
* Description : Initializes the UARTx peripheral according to the specified
* parameters in the UART_InitStruct .
* Input : - UARTx: where x can be 0,1or 2 to select the UART peripheral.
* - UART_InitStruct: pointer to a UART_InitTypeDef structure
* that contains the configuration information for the
* specified UART peripheral.
* Output : None
* Return : None
*******************************************************************************/
void UART_Init(UART_TypeDef* UARTx, UART_InitTypeDef* UART_InitStruct)
{
u64 UART_MainClock = 0;
u32 IntegerDivider = 0;
u32 FractionalDivider = 0;
/* Clear the LCR[6:5] bits */
UARTx->LCR &= UART_WordLength_Mask;
/* Set the LCR[6:5] bits according to UART_WordLength value */
UARTx->LCR |= UART_InitStruct->UART_WordLength;
/* Choose Stop Bits */
if(UART_InitStruct->UART_StopBits == UART_StopBits_2)
{
/* 2 Stop Bit */
UARTx->LCR |= UART_StopBits_2;
}
else
{
/* One Stop Bits */
UARTx->LCR &= UART_StopBits_1;
}
/* Configure the Parity */
/* Clear the LCR[7]and LCR[2:1] bits */
UARTx->LCR &= UART_Parity_Mask;
/* Set the LCR[7]and LCR[2:1] bits according to UART_Parity value */
UARTx->LCR |= UART_InitStruct->UART_Parity;
/* Configure the BaudRate */
UART_MainClock = (SCU_GetMCLKFreqValue())*1000;
if((SCU->CLKCNTR & 0x200) != 0x200)
{
UART_MainClock = UART_MainClock/2;
}
/* Determine the integer part */
IntegerDivider = ((100) * (UART_MainClock) / (16 * (UART_InitStruct->UART_BaudRate)));
UARTx->IBRD = IntegerDivider / 100;
/* Determine the fractional part */
FractionalDivider = IntegerDivider - (100 * (UARTx->IBRD));
UARTx->FBRD = ((((FractionalDivider * 64) + 50) / 100));
/* Choose the Hardware Flow Control */
/* Clear the CR[15:14] bits */
UARTx->CR &= UART_HardwareFlowControl_Mask;
/* Set the CR[15:14] bits according to UART_HardwareFlowControl value */
UARTx->CR |= UART_InitStruct->UART_HardwareFlowControl;
/* Configure the UART mode */
/* Clear the CR[9:8] bits */
UARTx->CR &= UART_Mode_Mask;
/* Set the CR[9:8] bits according to UART_Mode value */
UARTx->CR |= UART_InitStruct->UART_Mode;
/* Enable or disable the FIFOs */
/* Set the FIFOs Levels */
if(UART_InitStruct->UART_FIFO == UART_FIFO_Enable)
{
/* Enable the FIFOs */
UARTx->LCR |= UART_FIFO_Enable;
/* Clear TXIFLSEL and RXIFLSEL bits */
UARTx->IFLS &= UART_TxRxFIFOLevel_Mask;
/* Set RXIFLSEL bits according to UART_RxFIFOLevel value */
UARTx->IFLS |= (UART_InitStruct->UART_RxFIFOLevel << 3);
/* Set TXIFLSEL bits according to UART_TxFIFOLevel value */
UARTx->IFLS |= UART_InitStruct->UART_TxFIFOLevel;
}
else
{
/* Disable the FIFOs */
UARTx->LCR &= UART_FIFO_Disable;
}
}
/*******************************************************************************
* Function Name : UART_StructInit
* Description : Fills each UART_InitStruct member with its reset value.
* Input : UART_InitStruct: pointer to a UART_InitTypeDef structure which
* will be initialized.
* Output : None
* Return : None
*******************************************************************************/
void UART_StructInit(UART_InitTypeDef* UART_InitStruct)
{
/* Reset the UART_InitStruct members */
UART_InitStruct->UART_WordLength = UART_WordLength_8D;
UART_InitStruct->UART_StopBits = UART_StopBits_1;
UART_InitStruct->UART_Parity = UART_Parity_Odd ;
UART_InitStruct->UART_BaudRate = 9600;
UART_InitStruct->UART_HardwareFlowControl = UART_HardwareFlowControl_None;
UART_InitStruct->UART_Mode = UART_Mode_Tx_Rx;
UART_InitStruct->UART_FIFO = UART_FIFO_Enable;
UART_InitStruct->UART_TxFIFOLevel = UART_FIFOLevel_1_2;
UART_InitStruct->UART_RxFIFOLevel = UART_FIFOLevel_1_2;
}
/*******************************************************************************
* Function Name : UART_Cmd
* Description : Enables or disables the specified UART peripheral.
* Input : - UARTx: where x can be 0,1 or 2 to select the UART peripheral
* - NewState: new state of the UARTx peripheral.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void UART_Cmd(UART_TypeDef* UARTx, FunctionalState NewState)
{
if (NewState == ENABLE)
{
/* Enable the selected UART by setting the UARTEN bit in the CR register */
UARTx->CR |= UART_Enable_Mask;
}
else
{
/* Disable the selected UART by clearing the UARTEN bit in the CR register */
UARTx->CR &= UART_Disable_Mask;
}
}
/*******************************************************************************
* Function Name : UART_ITConfig
* Description : Enables or disables the specified UART interrupts.
* Input : - UARTx: where x can be 0,1 or 2 to select the UART peripheral
* - UART_IT: specifies the UART interrupts sources to be
* enabled or disabled. This parameter can be any combination
* of the following values:
* - UART_IT_OverrunError: Overrun Error interrupt
* - UART_IT_BreakError: Break Error interrupt
* - UART_IT_ParityError: Parity Error interrupt
* - UART_IT_FrameError: Frame Error interrupt
* - UART_IT_ReceiveTimeOut: Receive Time Out interrupt
* - UART_IT_Transmit: Transmit interrupt
* - UART_IT_Receive: Receive interrupt
* - UART_IT_DSR: DSR interrupt
* - UART_IT_DCD: DCD interrupt
* - UART_IT_CTS: CTS interrupt
* - UART_IT_RI: RI interrupt
* - NewState: new state of the UARTx peripheral.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void UART_ITConfig(UART_TypeDef* UARTx, u16 UART_IT, FunctionalState NewState)
{
if(NewState == ENABLE)
{
/* Enables the selected interrupts */
UARTx->IMSC |= UART_IT;
}
else
{
/* Disables the selected interrupts */
UARTx->IMSC &= ~UART_IT;
}
}
/*******************************************************************************
* Function Name : UART_DMAConfig
* Description : Configures the UARTx’s DMA interface.
* Input : - UARTx: where x can be 1 or 2 to select the UART peripheral
* - UART_DMAOnError: specifies the DMA on error request.
* This parameter can be:
* - UART_DMAOnError_Enable: DMA receive request enabled
* when the UART error interrupt is asserted.
* - UART_DMAOnError_Disable: DMA receive request disabled
* when the UART error interrupt is asserted.
* Output : None
* Return : None
*******************************************************************************/
void UART_DMAConfig(UART_TypeDef* UARTx, u16 UART_DMAOnError)
{
if(UART_DMAOnError == UART_DMAOnError_Enable)
{
UARTx->DMACR &= UART_DMAOnError_Enable;
}
else
{
UARTx->DMACR |= UART_DMAOnError_Disable;
}
}
/*******************************************************************************
* Function Name : UART_DMACmd
* Description : Enables or disables the UARTx’s DMA interface.
* Input : - UARTx: where x can be 1 or 2 to select the UART peripheral
* - UART_DMAReq: enables or disables the request of DMA from UART.
* This parameter can be:
* - UART_DMAReq_Tx: Transmit DMA Enable
* - UART_DMAReq_Rx: Receive DMA Enable
* - NewState: new state of the UARTx peripheral.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void UART_DMACmd(UART_TypeDef* UARTx, u8 UART_DMAReq, FunctionalState NewState)
{
if(UART_DMAReq == UART_DMAReq_Tx)
{
if(NewState == ENABLE)
{
UARTx->DMACR |= UART_DMAReq_Tx;
}
else
{
UARTx->DMACR &= ~UART_DMAReq_Tx;
}
}
if(UART_DMAReq == UART_DMAReq_Rx)
{
if(NewState == ENABLE)
{
UARTx->DMACR |= UART_DMAReq_Rx;
}
else
{
UARTx->DMACR &= ~UART_DMAReq_Rx;
}
}
}
/*******************************************************************************
* Function Name : UART_LoopBackConfig
* Description : Enables or disables the LoopBack mode.
* Input : - UARTx: where x can be 0,1 or 2 to select the UART peripheral
* - NewState: new state of the UARTx peripheral.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void UART_LoopBackConfig(UART_TypeDef* UARTx, FunctionalState NewState)
{
if (NewState == ENABLE)
{
/* Enable the LoopBack mode of the specified UART */
UARTx->CR |= UART_LoopBack_Enable_Mask;
}
else
{
/* Disable the LoopBack mode of the specified UART */
UARTx->CR &= UART_LoopBack_Disable_Mask;
}
}
/*******************************************************************************
* Function Name : UART_GetFlagStatus
* Description : Checks whether the specified UART flag is set or not.
* Input : - UARTx: where x can be 0,1 or 2 to select the UART peripheral
* - UART_FLAG: specifies the flag to check.
* This parameter can be one of the following values:
* - UART_FLAG_OverrunError: Overrun error flag
* - UART_FLAG_Break: break error flag
* - UART_FLAG_ParityError: parity error flag
* - UART_FLAG_FrameError: frame error flag
* - UART_FLAG_RI: RI flag
* - UART_FLAG_TxFIFOEmpty: Transmit FIFO Empty flag
* - UART_FLAG_RxFIFOFull: Receive FIFO Full flag
* - UART_FLAG_TxFIFOFull: Transmit FIFO Full flag
* - UART_FLAG_RxFIFOEmpty: Receive FIFO Empty flag
* - UART_FLAG_Busy: UART Busy flag
* - UART_FLAG_CTS: CTS flag
* - UART_FLAG_DCD: DCD flag
* - UART_FLAG_DSR: DSR flag
* - UART_RawIT_OverrunError: Overrun Error interrupt flag
* - UART_RawIT_BreakError: Break Error interrupt flag
* - UART_RawIT_ParityError: Parity Error interrupt flag
* - UART_RawIT_FrameError: Frame Error interrupt flag
* - UART_RawIT_ReceiveTimeOut: ReceiveTimeOut interrupt flag
* - UART_RawIT_Transmit: Transmit interrupt flag
* - UART_RawIT_Receive: Receive interrupt flag
* - UART_RawIT_DSR: DSR interrupt flag
* - UART_RawIT_DCD: DCD interrupt flag
* - UART_RawIT_CTS: CTS interrupt flag
* - UART_RawIT_RI: RI interrupt flag
* Output : None
* Return : The new state of UART_FLAG (SET or RESET).
*******************************************************************************/
FlagStatus UART_GetFlagStatus(UART_TypeDef* UARTx, u16 UART_FLAG)
{
u32 UARTReg = 0, FlagPos = 0;
u32 StatusReg = 0;
/* Get the UART register index */
UARTReg = UART_FLAG >> 5;
/* Get the flag position */
FlagPos = UART_FLAG & UART_FLAG_Mask;
if(UARTReg == 1) /* The flag to check is in RSR register */
{
StatusReg = UARTx->RSECR;
}
else if (UARTReg == 2) /* The flag to check is in FR register */
{
StatusReg = UARTx->FR;
}
else if(UARTReg == 3) /* The flag to check is in RIS register */
{
StatusReg = UARTx->RIS;
}
if((StatusReg & (1 << FlagPos))!= RESET)
{
return SET;
}
else
{
return RESET;
}
}
/*******************************************************************************
* Function Name : UART_ClearFlag
* Description : Clears the UARTx’s flags(Frame, Parity, Break, Overrun error).
* Input : - UARTx: where x can be 0,1or 2 to select the UART peripheral.
* Output : None
* Return : None
*******************************************************************************/
void UART_ClearFlag(UART_TypeDef* UARTx)
{
/* Clear the flag */
UARTx->RSECR = UART_ClearFlag_Mask;
}
/*******************************************************************************
* Function Name : UART_GetITStatus
* Description : Checks whether the specified UART interrupt has occured or not.
* Input : - UARTx: where x can be 0,1or 2 to select the UART peripheral.
* - UART_IT: specifies the interrupt pending bit to be checked.
* This parameter can be one of the following values:
* - UART_IT_OverrunError: Overrun Error interrupt
* - UART_IT_BreakError: Break Error interrupt
* - UART_IT_ParityError: Parity Error interrupt
* - UART_IT_FrameError: Frame Error interrupt
* - UART_IT_ReceiveTimeOut: Receive Time Out interrupt
* - UART_IT_Transmit: Transmit interrupt
* - UART_IT_Receive: Receive interrupt
* - UART_IT_DSR: DSR interrupt
* - UART_IT_DCD: DCD interrupt
* - UART_IT_CTS: CTS interrupt
* - UART_IT_RI: RI interrupt
* Output : None
* Return : The new state of UART_IT (SET or RESET).
*******************************************************************************/
ITStatus UART_GetITStatus(UART_TypeDef* UARTx, u16 UART_IT)
{
if((UARTx->MIS & UART_IT) != RESET)
{
return SET;
}
else
{
return RESET;
}
}
/*******************************************************************************
* Function Name : UART_ClearITPendingBit
* Description : Clears the UARTx’s interrupt pending bits.
* Input : - UARTx: where x can be 0,1or 2 to select the UART peripheral.
* - UART_IT: specifies the interrupt pending bit to clear.
* More than one interrupt can be cleared using the “|” operator.
* This parameter can be:
* - UART_IT_OverrunError: Overrun Error interrupt
* - UART_IT_BreakError: Break Error interrupt
* - UART_IT_ParityError: Parity Error interrupt
* - UART_IT_FrameError: Frame Error interrupt
* - UART_IT_ReceiveTimeOut: Receive Time Out interrupt
* - UART_IT_Transmit: Transmit interrupt
* - UART_IT_Receive: Receive interrupt
* - UART_IT_DSR: DSR interrupt
* - UART_IT_DCD: DCD interrupt
* - UART_IT_CTS: CTS interrupt
* - UART_IT_RI: RI interrupt
* Output : None
* Return : None
*******************************************************************************/
void UART_ClearITPendingBit(UART_TypeDef* UARTx, u16 UART_IT)
{
/* Clear the specified interrupt */
UARTx->ICR = UART_IT;
}
/*******************************************************************************
* Function Name : UART_IrDALowPowerConfig
* Description : Sets the IrDA low power mode
* Input : - IrDAx: where x can be 0,1 or 2 to select the UART/IrDA peripheral.
* - NewState: new state of the UARTIrDA peripheral.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void UART_IrDALowPowerConfig(u8 IrDAx, FunctionalState NewState)
{
UART_TypeDef* UARTx =0;
switch(IrDAx)
{
case IrDA0: UARTx = UART0;
break;
case IrDA1: UARTx = UART1;
break;
case IrDA2: UARTx = UART2;
break;
default : break;
}
if (NewState == ENABLE)
{
UARTx->CR |= IrDA_LowPower_Enable_Mask;
}
else
{
UARTx->CR &= IrDA_LowPower_Disable_Mask;
}
}
/*******************************************************************************
* Function Name : UART_IrDASetCounter
* Description : Sets the IrDA counter divisor value.
* Input : - UARTx: where x can be 0,1 or 2 to select the UART/IrDA peripheral.
* - IrDA_Counter: IrDA counter divisor new value n low power mode(Hz).
* Output : None
* Return : None
*******************************************************************************/
void UART_IrDASetCounter(u8 IrDAx, u32 IrDA_Counter)
{
UART_TypeDef* UARTx =0;
u32 APBClock;
switch(IrDAx)
{
case IrDA0: UARTx = UART0;
break;
case IrDA1: UARTx = UART1;
break;
case IrDA2: UARTx = UART2;
break;
default : break;
}
/* Get the APB frequency */
APBClock = (SCU_GetPCLKFreqValue())*1000;
/* Determine the Counter Divisor part */
UARTx->ILPR = (((APBClock*10) / ( IrDA_Counter)) + 5 )/10;
}
/*******************************************************************************
* Function Name : UART_IrDACmd
* Description : Enables or disables the UARTx’s IrDA interface.
* Input : - IrDAx: where x can be 0,1 or 2 to select the UART/IrDA peripheral
* - NewState: new state of the UARTx peripheral.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void UART_IrDACmd(u8 IrDAx, FunctionalState NewState)
{
UART_TypeDef* UARTx = 0;
switch(IrDAx)
{
case IrDA0: UARTx = UART0;
break;
case IrDA1: UARTx = UART1;
break;
case IrDA2: UARTx = UART2;
break;
default : break;
}
if(NewState == ENABLE)
{
/* Enable the IrDA mode of the specified UART */
UARTx->CR |= UART_IrDA_Enable_Mask;
}
else
{
/* Disable the IrDA mode of the specified UART */
UARTx->CR &= UART_IrDA_Disable_Mask;
}
}
/*******************************************************************************
* Function Name : UART_SendData
* Description : Transmits signle Byte of data through the UARTx peripheral.
* Input : - UARTx: where x can be 0,1 or 2 to select the UART peripheral.
* - Data: the byte to transmit
* Output : None
* Return : None
*******************************************************************************/
void UART_SendData(UART_TypeDef* UARTx, u8 Data)
{
/* Transmit one byte */
UARTx->DR = Data;
}
/*******************************************************************************
* Function Name : UART_ReceiveData
* Description : Returns the most recent received Byte by the UARTx peripheral.
* Input : UARTx: where x can be 0,1 or 2 to select the UART peripheral.
* Output : None
* Return : The received data
*******************************************************************************/
u8 UART_ReceiveData(UART_TypeDef* UARTx)
{
/* Receive one byte */
return ((u8)UARTx->DR);
}
/*******************************************************************************
* Function Name : UART_SendBreak
* Description : Transmits break characters.
* Input : UARTx: where x can be 0,1 or 2 to select the UART peripheral.
* Output : None
* Return : None
*******************************************************************************/
void UART_SendBreak(UART_TypeDef* UARTx)
{
/* Send break characters */
UARTx->LCR |= UART_BreakChar_Mask;
}
/*******************************************************************************
* Function Name : UART_RTSConfig
* Description : Sets or Resets the RTS signal
* Input : - LevelState: new state of the RTS signal for UART0 only.
* This parameter can be: LowLevel or HighLevel
* Output : None
* Return : None
*******************************************************************************/
void UART_RTSConfig(UART_LevelTypeDef LevelState)
{
if(LevelState == LowLevel)
{
UART0->CR |= UART_RTS_LowLevel_Mask;
}
else
{
UART0->CR &= UART_RTS_HighLevel_Mask;
}
}
/*******************************************************************************
* Function Name : UART_DTRConfig
* Description : Sets or Resets the DTR signal for UART0 only
* Input : - LevelState: new state of the DTR signal.
* This parameter can be: LowLevel or HighLevel
* Output : None
* Return : None
*******************************************************************************/
void UART_DTRConfig(UART_LevelTypeDef LevelState)
{
if(LevelState == LowLevel)
{
UART0->CR |= UART_DTR_LowLevel_Mask;
}
else
{
UART0->CR &= UART_DTR_HighLevel_Mask;
}
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_vic.c
0,0 → 1,843
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_vic.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the VIC firmware functions.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH
* CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS
* A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
* OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
* OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
* CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Standard include ----------------------------------------------------------*/
#include "91x_vic.h"
/* Include of other module interface headers ---------------------------------*/
/* Local includes ------------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define VIC_REGISTER_NUMBER 16
#define VIC_PROTECTION_ENABLE_MASK 0x1
#define VIC_PROTECTION_DISABLE_MASK 0xFFFFFFFE
#define VIC_VECTOR_ENABLE_MASK 0x20
#define VIC_IT_SOURCE_MASK 0xFFFFFFE0
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static void VIC_ITModeConfig(u16 VIC_Source, VIC_ITLineMode VIC_LineMode);
static void VIC_ISRVectAddConfig(u16 VIC_Source, u16 VIC_Priority, \
void (*VIC_VectAddress)(void));
static void VIC_VectEnableConfig(u16 VIC_Source, u16 VIC_Priority);
static void VIC_ITSourceConfig(u16 VIC_Source, u16 VIC_Priority);
/* Interface functions -------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : VIC_DeInit
* Description : Deinitialize the VIC module registers to their default reset
* values.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void VIC_DeInit(void)
{
SCU_AHBPeriphReset(__VIC, ENABLE); /* VIC peripheral is under Reset */
SCU_AHBPeriphReset(__VIC, DISABLE); /* VIC peripheral Reset off */
}
/*******************************************************************************
* Function Name : VIC_InitDefaultVectors
* Description : Assign the handler "DefaultVector_Handler" to VIC0 and VIC1
* default vector address registers VIC0_DVAR and VIC1_DVAR
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void VIC_InitDefaultVectors(void)
{
VIC0->DVAR = (u32)DefaultVector_Handler;
VIC1->DVAR = (u32)DefaultVector_Handler;
}
/*******************************************************************************
* Function Name : VIC_GetIRQStatus
* Description : Get the status of interrupts after IRQ masking.
* Input : VIC_Source: specifies the number of the source line.
* This parameter can be one of the following values:
* - WDG_ITLine : VIC source 0
* - SW_ITLine : VIC source 1
* - ARMRX_ITLine : VIC source 2
* - ARMTX_ITLine : VIC source 3
* - TIM0_ITLine : VIC source 4
* - TIM1_ITLine : VIC source 5
* - TIM2_ITLine : VIC source 6
* - TIM3_ITLine : VIC source 7
* - USBHP_ITLine : VIC source 8
* - USBLP_ITLine : VIC source 9
* - SCU_ITLine : VIC source 10
* - ENET_ITLine : VIC source 11
* - DMA_ITLine : VIC source 12
* - CAN_ITLine : VIC source 13
* - MC_ITLine : VIC source 14
* - ADC_ITLine : VIC source 15
* - UART0_ITLine : VIC source 16
* - UART1_ITLine : VIC source 17
* - UART2_ITLine : VIC source 18
* - I2C0_ITLine : VIC source 19
* - I2C1_ITLine : VIC source 20
* - SSP0_ITLine : VIC source 21
* - SSP1_ITLine : VIC source 22
* - LVD_ITLine : VIC source 23
* - RTC_ITLine : VIC source 24
* - WIU_ITLine : VIC source 25
* - EXTIT0_ITLine: VIC source 26
* - EXTIT1_ITLine: VIC source 27
* - EXTIT2_ITLine: VIC source 28
* - EXTIT3_ITLine: VIC source 29
* - USBWU_ITLine : VIC source 30
* - PFQBC_ITLine : VIC source 31
* Output : None
* Return : The status of the IRQ interrupt after masking (SET or RESET).
*******************************************************************************/
FlagStatus VIC_GetIRQStatus(u16 VIC_Source)
{
u32 VIC_Mask = 1;
if (VIC_Source < VIC_REGISTER_NUMBER)
{
if ((VIC0->ISR | VIC_Mask << VIC_Source) != RESET)
return SET;
else
return RESET;
}
else
{
if ((VIC1->ISR | VIC_Mask << (VIC_Source - VIC_REGISTER_NUMBER)) != RESET)
return SET;
else
return RESET;
}
}
/*******************************************************************************
* Function Name : VIC_GetFIQStatus
* Description : Get the status of interrupts after FIQ masking
* Input : VIC_Source: specifies the number of the source line.
* This parameter can be one of the following values:
* - WDG_ITLine : VIC source 0
* - SW_ITLine : VIC source 1
* - ARMRX_ITLine : VIC source 2
* - ARMTX_ITLine : VIC source 3
* - TIM0_ITLine : VIC source 4
* - TIM1_ITLine : VIC source 5
* - TIM2_ITLine : VIC source 6
* - TIM3_ITLine : VIC source 7
* - USBHP_ITLine : VIC source 8
* - USBLP_ITLine : VIC source 9
* - SCU_ITLine : VIC source 10
* - ENET_ITLine : VIC source 11
* - DMA_ITLine : VIC source 12
* - CAN_ITLine : VIC source 13
* - MC_ITLine : VIC source 14
* - ADC_ITLine : VIC source 15
* - UART0_ITLine : VIC source 16
* - UART1_ITLine : VIC source 17
* - UART2_ITLine : VIC source 18
* - I2C0_ITLine : VIC source 19
* - I2C1_ITLine : VIC source 20
* - SSP0_ITLine : VIC source 21
* - SSP1_ITLine : VIC source 22
* - LVD_ITLine : VIC source 23
* - RTC_ITLine : VIC source 24
* - WIU_ITLine : VIC source 25
* - EXTIT0_ITLine: VIC source 26
* - EXTIT1_ITLine: VIC source 27
* - EXTIT2_ITLine: VIC source 28
* - EXTIT3_ITLine: VIC source 29
* - USBWU_ITLine : VIC source 30
* - PFQBC_ITLine : VIC source 31
* Output : None
* Return : The status of the FIQ interrupt after masking (SET or RESET)
*******************************************************************************/
FlagStatus VIC_GetFIQStatus(u16 VIC_Source)
{
u32 VIC_Mask = 1;
if (VIC_Source < VIC_REGISTER_NUMBER)
{
if ((VIC0->RINTSR | VIC_Mask << VIC_Source) != RESET)
return SET;
else
return RESET;
}
else
{
if ((VIC1->RINTSR | VIC_Mask << (VIC_Source - VIC_REGISTER_NUMBER)) != RESET)
return SET;
else
return RESET;
}
}
/*******************************************************************************
* Function Name : VIC_GetSourceITStatus
* Description : Get the status of the source interrupts before masking.
* Input : VIC_Source: specifies the number of the source line.
* This parameter can be one of the following values:
* - WDG_ITLine : VIC source 0
* - SW_ITLine : VIC source 1
* - ARMRX_ITLine : VIC source 2
* - ARMTX_ITLine : VIC source 3
* - TIM0_ITLine : VIC source 4
* - TIM1_ITLine : VIC source 5
* - TIM2_ITLine : VIC source 6
* - TIM3_ITLine : VIC source 7
* - USBHP_ITLine : VIC source 8
* - USBLP_ITLine : VIC source 9
* - SCU_ITLine : VIC source 10
* - ENET_ITLine : VIC source 11
* - DMA_ITLine : VIC source 12
* - CAN_ITLine : VIC source 13
* - MC_ITLine : VIC source 14
* - ADC_ITLine : VIC source 15
* - UART0_ITLine : VIC source 16
* - UART1_ITLine : VIC source 17
* - UART2_ITLine : VIC source 18
* - I2C0_ITLine : VIC source 19
* - I2C1_ITLine : VIC source 20
* - SSP0_ITLine : VIC source 21
* - SSP1_ITLine : VIC source 22
* - LVD_ITLine : VIC source 23
* - RTC_ITLine : VIC source 24
* - WIU_ITLine : VIC source 25
* - EXTIT0_ITLine: VIC source 26
* - EXTIT1_ITLine: VIC source 27
* - EXTIT2_ITLine: VIC source 28
* - EXTIT3_ITLine: VIC source 29
* - USBWU_ITLine : VIC source 30
* - PFQBC_ITLine : VIC source 31
* Output : None
* Return : The status of the source interrupt before masking
*******************************************************************************/
FlagStatus VIC_GetSourceITStatus(u16 VIC_Source)
{
u32 VIC_Mask = 1;
if (VIC_Source < VIC_REGISTER_NUMBER)
{
if ((VIC0->FSR | VIC_Mask << VIC_Source) != RESET)
return SET;
else
return RESET;
}
else
{
if ((VIC1->FSR | VIC_Mask << (VIC_Source - VIC_REGISTER_NUMBER)) != RESET)
return SET;
else
return RESET;
}
}
/*******************************************************************************
* Function Name : VIC_ITModeConfig
* Description : Select the type of interrupt (IRQ or FIQ)
* Input1 : VIC_Source: specifies the number of the source line.
* This parameter can be one of the following values:
* - WDG_ITLine : VIC source 0
* - SW_ITLine : VIC source 1
* - ARMRX_ITLine : VIC source 2
* - ARMTX_ITLine : VIC source 3
* - TIM0_ITLine : VIC source 4
* - TIM1_ITLine : VIC source 5
* - TIM2_ITLine : VIC source 6
* - TIM3_ITLine : VIC source 7
* - USBHP_ITLine : VIC source 8
* - USBLP_ITLine : VIC source 9
* - SCU_ITLine : VIC source 10
* - ENET_ITLine : VIC source 11
* - DMA_ITLine : VIC source 12
* - CAN_ITLine : VIC source 13
* - MC_ITLine : VIC source 14
* - ADC_ITLine : VIC source 15
* - UART0_ITLine : VIC source 16
* - UART1_ITLine : VIC source 17
* - UART2_ITLine : VIC source 18
* - I2C0_ITLine : VIC source 19
* - I2C1_ITLine : VIC source 20
* - SSP0_ITLine : VIC source 21
* - SSP1_ITLine : VIC source 22
* - LVD_ITLine : VIC source 23
* - RTC_ITLine : VIC source 24
* - WIU_ITLine : VIC source 25
* - EXTIT0_ITLine: VIC source 26
* - EXTIT1_ITLine: VIC source 27
* - EXTIT2_ITLine: VIC source 28
* - EXTIT3_ITLine: VIC source 29
* - USBWU_ITLine : VIC source 30
* - PFQBC_ITLine : VIC source 31
* Input2 : VIC_LineMode :specifies the type of interrupt of the source
* line. This parameter can be one of the following values:
* - VIC_IRQ: the correspondent line is configured as IRQ.
* - VIC_FIQ: the correspondent line is configured as FIQ.
* Output : None
* Return : None
*******************************************************************************/
static void VIC_ITModeConfig(u16 VIC_Source, VIC_ITLineMode VIC_LineMode)
{
u32 VIC_Mask = 1;
if (VIC_Source < VIC_REGISTER_NUMBER) /* VIC0 */
{
if (VIC_LineMode == VIC_IRQ)
VIC0->INTSR &= ~(VIC_Mask << VIC_Source);
else /* VIC_LineMode == VIC_FIQ */
VIC0->INTSR |= (VIC_Mask << VIC_Source);
}
else /* VIC1 */
{
if (VIC_LineMode == VIC_IRQ)
VIC1->INTSR &= ~(VIC_Mask << (VIC_Source - VIC_REGISTER_NUMBER));
else /* VIC_LineMode == VIC_FIQ */
VIC1->INTSR |= (VIC_Mask << (VIC_Source - VIC_REGISTER_NUMBER));
}
}
/*******************************************************************************
* Function Name : VIC_ITCmd
* Description : Enable or disable the interrupt request lines.
* Input1 : VIC_Source: specifies the number of the source line.
* This parameter can be one of the following values:
* - WDG_ITLine : VIC source 0
* - SW_ITLine : VIC source 1
* - ARMRX_ITLine : VIC source 2
* - ARMTX_ITLine : VIC source 3
* - TIM0_ITLine : VIC source 4
* - TIM1_ITLine : VIC source 5
* - TIM2_ITLine : VIC source 6
* - TIM3_ITLine : VIC source 7
* - USBHP_ITLine : VIC source 8
* - USBLP_ITLine : VIC source 9
* - SCU_ITLine : VIC source 10
* - ENET_ITLine : VIC source 11
* - DMA_ITLine : VIC source 12
* - CAN_ITLine : VIC source 13
* - MC_ITLine : VIC source 14
* - ADC_ITLine : VIC source 15
* - UART0_ITLine : VIC source 16
* - UART1_ITLine : VIC source 17
* - UART2_ITLine : VIC source 18
* - I2C0_ITLine : VIC source 19
* - I2C1_ITLine : VIC source 20
* - SSP0_ITLine : VIC source 21
* - SSP1_ITLine : VIC source 22
* - LVD_ITLine : VIC source 23
* - RTC_ITLine : VIC source 24
* - WIU_ITLine : VIC source 25
* - EXTIT0_ITLine: VIC source 26
* - EXTIT1_ITLine: VIC source 27
* - EXTIT2_ITLine: VIC source 28
* - EXTIT3_ITLine: VIC source 29
* - USBWU_ITLine : VIC source 30
* - PFQBC_ITLine : VIC source 31
* Input2 : FMI_NewState: specifies the line status.
* This parameter can be one of the following values:
* - ENABLE: The line is enabled.
* - DISABLE: The line is disabled.
* Output : None
* Return : None
*******************************************************************************/
void VIC_ITCmd(u16 VIC_Source, FunctionalState VIC_NewState)
{
u32 VIC_Mask = 1;
if (VIC_NewState == ENABLE)
{
if (VIC_Source < VIC_REGISTER_NUMBER) /* VIC0 */
VIC0->INTER |= (VIC_Mask << VIC_Source);
else /* VIC1 */
VIC1->INTER |= (VIC_Mask << (VIC_Source - VIC_REGISTER_NUMBER));
}
else /* VIC_NewState == DISABLE */
{
if (VIC_Source < VIC_REGISTER_NUMBER) /* VIC0 */
VIC0->INTECR |= (VIC_Mask << VIC_Source);
else /* VIC1 */
VIC1->INTECR |= (VIC_Mask << (VIC_Source - VIC_REGISTER_NUMBER));
}
}
/*******************************************************************************
* Function Name : VIC_SWITCmd
* Description : Generate a software interrupt for the specific source
* interrupt.
* Input1 : VIC_Source: specifies the number of the source line.
* This parameter can be one of the following values:
* - WDG_ITLine : VIC source 0
* - SW_ITLine : VIC source 1
* - ARMRX_ITLine : VIC source 2
* - ARMTX_ITLine : VIC source 3
* - TIM0_ITLine : VIC source 4
* - TIM1_ITLine : VIC source 5
* - TIM2_ITLine : VIC source 6
* - TIM3_ITLine : VIC source 7
* - USBHP_ITLine : VIC source 8
* - USBLP_ITLine : VIC source 9
* - SCU_ITLine : VIC source 10
* - ENET_ITLine : VIC source 11
* - DMA_ITLine : VIC source 12
* - CAN_ITLine : VIC source 13
* - MC_ITLine : VIC source 14
* - ADC_ITLine : VIC source 15
* - UART0_ITLine : VIC source 16
* - UART1_ITLine : VIC source 17
* - UART2_ITLine : VIC source 18
* - I2C0_ITLine : VIC source 19
* - I2C1_ITLine : VIC source 20
* - SSP0_ITLine : VIC source 21
* - SSP1_ITLine : VIC source 22
* - LVD_ITLine : VIC source 23
* - RTC_ITLine : VIC source 24
* - WIU_ITLine : VIC source 25
* - EXTIT0_ITLine: VIC source 26
* - EXTIT1_ITLine: VIC source 27
* - EXTIT2_ITLine: VIC source 28
* - EXTIT3_ITLine: VIC source 29
* - USBWU_ITLine : VIC source 30
* - PFQBC_ITLine : VIC source 31
* Input2 : FMI_NewState: specifies the software interrupt status.
* This parameter can be one of the following values:
* - ENABLE: The software interrupt is enabled.
* - DISABLE: The software interrupt is disabled.
* Output : None
* Return : None
*******************************************************************************/
void VIC_SWITCmd(u16 VIC_Source, FunctionalState VIC_NewState)
{
u32 VIC_Mask = 1;
if (VIC_NewState == ENABLE)
{
if (VIC_Source < VIC_REGISTER_NUMBER) /* VIC0 */
VIC0->SWINTR |= (VIC_Mask << VIC_Source);
else /* VIC1 */
VIC1->SWINTR |= (VIC_Mask << (VIC_Source - VIC_REGISTER_NUMBER));
}
else /* VIC_NewState == DISABLE */
{
if (VIC_Source < VIC_REGISTER_NUMBER) /* VIC0 */
VIC0->SWINTCR = (VIC_Mask << VIC_Source);
else /* VIC1 */
VIC1->SWINTCR = (VIC_Mask << (VIC_Source - VIC_REGISTER_NUMBER));
}
}
/*******************************************************************************
* Function Name : VIC_ProtectionCmd
* Description : Enable or Disable the register access protection.
* Input : FMI_NewState: specifies the protection status.
* This parameter can be one of the following values:
* - ENABLE: The protection is enabled.
* - DISABLE: The protection is disabled.
* Output : None
* Return : None
*******************************************************************************/
void VIC_ProtectionCmd(FunctionalState VIC_NewState)
{
if (VIC_NewState == ENABLE)
{
VIC0->PER |= VIC_PROTECTION_ENABLE_MASK;
VIC1->PER |= VIC_PROTECTION_ENABLE_MASK;
}
else
{
VIC0->PER &= VIC_PROTECTION_DISABLE_MASK;
VIC1->PER &= VIC_PROTECTION_DISABLE_MASK;
}
}
/*******************************************************************************
* Function Name : VIC_GetCurrentISRAdd
* Description : Get the address of the current active ISR.
* Input : VICx: specifies the VIC peripheral
* This parameter can be one of the following values:
* - VIC0: To select VIC0.
* - VIC1: To select VIC1.
* Output : None
* Return : The Address of the active ISR.
*******************************************************************************/
u32 VIC_GetCurrentISRAdd(VIC_TypeDef* VICx)
{
return VICx->VAR;
}
/*******************************************************************************
* Function Name : VIC_ISRVectAddConfig
* Description : Configuration of the ISR vector address.
* Input1 : VIC_Source: specifies the number of the source line.
* This parameter can be one of the following values:
* - WDG_ITLine : VIC source 0
* - SW_ITLine : VIC source 1
* - ARMRX_ITLine : VIC source 2
* - ARMTX_ITLine : VIC source 3
* - TIM0_ITLine : VIC source 4
* - TIM1_ITLine : VIC source 5
* - TIM2_ITLine : VIC source 6
* - TIM3_ITLine : VIC source 7
* - USBHP_ITLine : VIC source 8
* - USBLP_ITLine : VIC source 9
* - SCU_ITLine : VIC source 10
* - ENET_ITLine : VIC source 11
* - DMA_ITLine : VIC source 12
* - CAN_ITLine : VIC source 13
* - MC_ITLine : VIC source 14
* - ADC_ITLine : VIC source 15
* - UART0_ITLine : VIC source 16
* - UART1_ITLine : VIC source 17
* - UART2_ITLine : VIC source 18
* - I2C0_ITLine : VIC source 19
* - I2C1_ITLine : VIC source 20
* - SSP0_ITLine : VIC source 21
* - SSP1_ITLine : VIC source 22
* - LVD_ITLine : VIC source 23
* - RTC_ITLine : VIC source 24
* - WIU_ITLine : VIC source 25
* - EXTIT0_ITLine: VIC source 26
* - EXTIT1_ITLine: VIC source 27
* - EXTIT2_ITLine: VIC source 28
* - EXTIT3_ITLine: VIC source 29
* - USBWU_ITLine : VIC source 30
* - PFQBC_ITLine : VIC source 31
* Input2 : VIC_Priority: specifies the priority of the interrupt.
* It can be a value from 0 to 15. 0 is the highest priority.
* Input3 : void (*VIC_VectAddress)(void): specifies the ISR vector
* address pointer.
* Output : None
* Return : None
*******************************************************************************/
static void VIC_ISRVectAddConfig(u16 VIC_Source, u16 VIC_Priority, \
void (*VIC_VectAddress)(void))
{
if (VIC_Source < VIC_REGISTER_NUMBER) /* VIC0 */
VIC0->VAiR[VIC_Priority] = (u32)VIC_VectAddress;
else /* VIC1 */
VIC1->VAiR[VIC_Priority] = (u32)VIC_VectAddress;
}
/*******************************************************************************
* Function Name : VIC_GetISRVectAdd
* Description : Get the ISR vector address of the correspondent line.
* Input1 : VIC_Source: specifies the number of the source line.
* This parameter can be one of the following values:
* - WDG_ITLine : VIC source 0
* - SW_ITLine : VIC source 1
* - ARMRX_ITLine : VIC source 2
* - ARMTX_ITLine : VIC source 3
* - TIM0_ITLine : VIC source 4
* - TIM1_ITLine : VIC source 5
* - TIM2_ITLine : VIC source 6
* - TIM3_ITLine : VIC source 7
* - USBHP_ITLine : VIC source 8
* - USBLP_ITLine : VIC source 9
* - SCU_ITLine : VIC source 10
* - ENET_ITLine : VIC source 11
* - DMA_ITLine : VIC source 12
* - CAN_ITLine : VIC source 13
* - MC_ITLine : VIC source 14
* - ADC_ITLine : VIC source 15
* - UART0_ITLine : VIC source 16
* - UART1_ITLine : VIC source 17
* - UART2_ITLine : VIC source 18
* - I2C0_ITLine : VIC source 19
* - I2C1_ITLine : VIC source 20
* - SSP0_ITLine : VIC source 21
* - SSP1_ITLine : VIC source 22
* - LVD_ITLine : VIC source 23
* - RTC_ITLine : VIC source 24
* - WIU_ITLine : VIC source 25
* - EXTIT0_ITLine: VIC source 26
* - EXTIT1_ITLine: VIC source 27
* - EXTIT2_ITLine: VIC source 28
* - EXTIT3_ITLine: VIC source 29
* - USBWU_ITLine : VIC source 30
* - PFQBC_ITLine : VIC source 31
* Input2 : VIC_Priority: specifies the priority of the interrupt.
* It can be a value from 0 to 15. 0 is the highest priority.
* Output : None
* Return : The correspondent ISR vector address.
*******************************************************************************/
u32 VIC_GetISRVectAdd(u16 VIC_Source,u16 VIC_Priority)
{
if (VIC_Source < VIC_REGISTER_NUMBER) /* VIC0 */
return VIC0->VAiR[VIC_Priority];
else /* VIC1 */
return VIC1->VAiR[VIC_Priority];
}
/*******************************************************************************
* Function Name : VIC_VectEnableConfig
* Description : Enable the vector interrupt.
* Input1 : VIC_Source: specifies the number of the source line.
* This parameter can be one of the following values:
* - WDG_ITLine : VIC source 0
* - SW_ITLine : VIC source 1
* - ARMRX_ITLine : VIC source 2
* - ARMTX_ITLine : VIC source 3
* - TIM0_ITLine : VIC source 4
* - TIM1_ITLine : VIC source 5
* - TIM2_ITLine : VIC source 6
* - TIM3_ITLine : VIC source 7
* - USBHP_ITLine : VIC source 8
* - USBLP_ITLine : VIC source 9
* - SCU_ITLine : VIC source 10
* - ENET_ITLine : VIC source 11
* - DMA_ITLine : VIC source 12
* - CAN_ITLine : VIC source 13
* - MC_ITLine : VIC source 14
* - ADC_ITLine : VIC source 15
* - UART0_ITLine : VIC source 16
* - UART1_ITLine : VIC source 17
* - UART2_ITLine : VIC source 18
* - I2C0_ITLine : VIC source 19
* - I2C1_ITLine : VIC source 20
* - SSP0_ITLine : VIC source 21
* - SSP1_ITLine : VIC source 22
* - LVD_ITLine : VIC source 23
* - RTC_ITLine : VIC source 24
* - WIU_ITLine : VIC source 25
* - EXTIT0_ITLine: VIC source 26
* - EXTIT1_ITLine: VIC source 27
* - EXTIT2_ITLine: VIC source 28
* - EXTIT3_ITLine: VIC source 29
* - USBWU_ITLine : VIC source 30
* - PFQBC_ITLine : VIC source 31
* Input2 : VIC_Priority: specifies the priority of the interrupt.
* It can be a value from 0 to 15. 0 is the highest priority.
* Output : None
* Return : None
*******************************************************************************/
static void VIC_VectEnableConfig(u16 VIC_Source, u16 VIC_Priority)
{
if (VIC_Source < VIC_REGISTER_NUMBER) /* VIC0 */
VIC0->VCiR[VIC_Priority] |= VIC_VECTOR_ENABLE_MASK;
else /* VIC1 */
VIC1->VCiR[VIC_Priority] |= VIC_VECTOR_ENABLE_MASK;
}
/*******************************************************************************
* Function Name : VIC_ITSourceConfig
* Description : Select the interrupt source.
* Input1 : VIC_Source: specifies the number of the source line.
* This parameter can be one of the following values:
* - WDG_ITLine : VIC source 0
* - SW_ITLine : VIC source 1
* - ARMRX_ITLine : VIC source 2
* - ARMTX_ITLine : VIC source 3
* - TIM0_ITLine : VIC source 4
* - TIM1_ITLine : VIC source 5
* - TIM2_ITLine : VIC source 6
* - TIM3_ITLine : VIC source 7
* - USBHP_ITLine : VIC source 8
* - USBLP_ITLine : VIC source 9
* - SCU_ITLine : VIC source 10
* - ENET_ITLine : VIC source 11
* - DMA_ITLine : VIC source 12
* - CAN_ITLine : VIC source 13
* - MC_ITLine : VIC source 14
* - ADC_ITLine : VIC source 15
* - UART0_ITLine : VIC source 16
* - UART1_ITLine : VIC source 17
* - UART2_ITLine : VIC source 18
* - I2C0_ITLine : VIC source 19
* - I2C1_ITLine : VIC source 20
* - SSP0_ITLine : VIC source 21
* - SSP1_ITLine : VIC source 22
* - LVD_ITLine : VIC source 23
* - RTC_ITLine : VIC source 24
* - WIU_ITLine : VIC source 25
* - EXTIT0_ITLine: VIC source 26
* - EXTIT1_ITLine: VIC source 27
* - EXTIT2_ITLine: VIC source 28
* - EXTIT3_ITLine: VIC source 29
* - USBWU_ITLine : VIC source 30
* - PFQBC_ITLine : VIC source 31
* Input2 : VIC_Priority: specifies the priority of the interrupt.
* It can be a value from 0 to 15. 0 is the highest priority.
* Output : None
* Return : None
*******************************************************************************/
static void VIC_ITSourceConfig(u16 VIC_Source, u16 VIC_Priority)
{
if (VIC_Source < VIC_REGISTER_NUMBER) /* VIC0 */
{
VIC0->VCiR[VIC_Priority] &= VIC_IT_SOURCE_MASK;
VIC0->VCiR[VIC_Priority] |= VIC_Source;
}
else /* VIC1 */
{
VIC1->VCiR[VIC_Priority] &= VIC_IT_SOURCE_MASK;
VIC1->VCiR[VIC_Priority] |= VIC_Source - VIC_REGISTER_NUMBER;
}
}
/*******************************************************************************
* Function Name : VIC_Config
* Description : Configure the ISR, the line, the mode and the priority for
* each interrupt source line.
* Input1 : VIC_Source: specifies the number of the source line.
* This parameter can be one of the following values:
* - WDG_ITLine : VIC source 0
* - SW_ITLine : VIC source 1
* - ARMRX_ITLine : VIC source 2
* - ARMTX_ITLine : VIC source 3
* - TIM0_ITLine : VIC source 4
* - TIM1_ITLine : VIC source 5
* - TIM2_ITLine : VIC source 6
* - TIM3_ITLine : VIC source 7
* - USBHP_ITLine : VIC source 8
* - USBLP_ITLine : VIC source 9
* - SCU_ITLine : VIC source 10
* - ENET_ITLine : VIC source 11
* - DMA_ITLine : VIC source 12
* - CAN_ITLine : VIC source 13
* - MC_ITLine : VIC source 14
* - ADC_ITLine : VIC source 15
* - UART0_ITLine : VIC source 16
* - UART1_ITLine : VIC source 17
* - UART2_ITLine : VIC source 18
* - I2C0_ITLine : VIC source 19
* - I2C1_ITLine : VIC source 20
* - SSP0_ITLine : VIC source 21
* - SSP1_ITLine : VIC source 22
* - LVD_ITLine : VIC source 23
* - RTC_ITLine : VIC source 24
* - WIU_ITLine : VIC source 25
* - EXTIT0_ITLine: VIC source 26
* - EXTIT1_ITLine: VIC source 27
* - EXTIT2_ITLine: VIC source 28
* - EXTIT3_ITLine: VIC source 29
* - USBWU_ITLine : VIC source 30
* - PFQBC_ITLine : VIC source 31
* Input2 : VIC_LineMode :specifies the type of interrupt of the source
* line. This parameter can be one of the following values:
* - VIC_IRQ: the correspondent line is configured as IRQ.
* - VIC_FIQ: the correspondent line is configured as FIQ.
* Input3 : VIC_Priority: specifies the priority of the interrupt.
* It can be a value from 0 to 15. 0 is the highest priority.
* Output : None
* Return : None
*******************************************************************************/
void VIC_Config(u16 VIC_Source, VIC_ITLineMode VIC_LineMode, u8 VIC_Priority)
{
switch (VIC_Source)
{
case 0: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, WDG_IRQHandler);
break;
case 1: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, SW_IRQHandler);
break;
case 2: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, ARMRX_IRQHandler);
break;
case 3: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, ARMTX_IRQHandler);
break;
case 4: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, TIM0_IRQHandler);
break;
case 5: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, TIM1_IRQHandler);
break;
case 6: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, TIM2_IRQHandler);
break;
case 7: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, TIM3_IRQHandler);
break;
case 8: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, USBHP_IRQHandler);
break;
case 9: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, USBLP_IRQHandler);
break;
case 10: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, SCU_IRQHandler);
break;
case 11: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, ENET_IRQHandler);
break;
case 12: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, DMA_IRQHandler);
break;
case 13: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, CAN_IRQHandler);
break;
case 14: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, MC_IRQHandler);
break;
case 15: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, ADC_IRQHandler);
break;
case 16: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, UART0_IRQHandler);
break;
case 17: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, UART1_IRQHandler);
break;
case 18: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, UART2_IRQHandler);
break;
case 19: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, I2C0_IRQHandler);
break;
case 20: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, I2C1_IRQHandler);
break;
case 21: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, SSP0_IRQHandler);
break;
case 22: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, SSP1_IRQHandler);
break;
case 23: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, LVD_IRQHandler);
break;
case 24: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, RTC_IRQHandler);
break;
case 25: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, WIU_IRQHandler);
break;
case 26: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, EXTIT0_IRQHandler);
break;
case 27: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, EXTIT1_IRQHandler);
break;
case 28: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, EXTIT2_IRQHandler);
break;
case 29: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, EXTIT3_IRQHandler);
break;
case 30: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, USBWU_IRQHandler);
break;
case 31: VIC_ISRVectAddConfig(VIC_Source, VIC_Priority, PFQBC_IRQHandler);
break;
default: break;
}
VIC_ITModeConfig(VIC_Source, VIC_LineMode);
VIC_VectEnableConfig(VIC_Source, VIC_Priority);
VIC_ITSourceConfig(VIC_Source, VIC_Priority);
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_wdg.c
0,0 → 1,253
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_wdg.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the WDG firmware functions.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "91x_wdg.h"
#include "91x_scu.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* WDG End of Count interrupt Flag */
#define WDG_FLAG_EC 0x0001
/* WDG End of Count interrupt request */
#define WDG_IT_EC 0x0001
/* WDG Start/Stop counter */
#define WDG_Counter_Start 0x0002
#define WDG_Counter_Stop 0xFFFD
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Registers reset value */
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : WDG_StructInit
* Description : Fills the WDG_InitTypeDef structure member with its reset
* value.
* Input : WDG_InitStruct : pointer to a WDG_InitTypeDef structure
* which will be initialized.
* Output : None
* Return : None
*******************************************************************************/
void WDG_StructInit(WDG_InitTypeDef *WDG_InitStruct)
{
/* Select the source clock */
WDG_InitStruct-> WDG_ClockSource = WDG_ClockSource_Apb;
/* Initialize Prescaler */
WDG_InitStruct->WDG_Prescaler =0xFF;
/* Initialize Preload */
WDG_InitStruct->WDG_Preload =0xFFFF;
}
/*******************************************************************************
* Function Name : WDG_Init
* Description : Initializes WDG peripheral according to the specified
* parameters in the WDG_InitStruct.
* Input : WDG_InitStruct: pointer to a WDG_InitTypeDef structure that
* contains the configuration information for the WDG peripheral.
* Output : None
* Return : None
*******************************************************************************/
void WDG_Init(WDG_InitTypeDef* WDG_InitStruct)
{
if(WDG_InitStruct->WDG_ClockSource == WDG_ClockSource_Apb)
{
/* Select The APB clock as clock source */
WDG->CR &= WDG_ClockSource_Apb;
}
else
{
/* Select the RTC clock as source */
WDG->CR |= WDG_ClockSource_Rtc ;
}
/* Configure WDG Prescaler register value */
WDG->PR = WDG_InitStruct->WDG_Prescaler;
/* Configure WDG Pre-load register value */
WDG->VR = WDG_InitStruct->WDG_Preload ;
}
/*******************************************************************************
* Function Name : WDG_TimerModeCmd
* Description : Enables or disables the WDG timer mode
* Input : NewState: new state of the WDG peripheral (Newstate can be
* ENABLE or DISABLE)
* Output : None
* Return : None
*******************************************************************************/
void WDG_TimerModeCmd(FunctionalState NewState)
{
if(NewState == ENABLE)
{
/* Start timer by setting SC bit in Control register */
WDG->CR |= WDG_Counter_Start;
}
else
{
/* Stop timer by clearning SC bit in Control register */
WDG->CR &= WDG_Counter_Stop;
}
}
/*******************************************************************************
* Function Name : WDG_StartWatchdogMode
* Description : Starts the watchdog mode
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void WDG_StartWatchdogMode(void)
{
/*reload watchdog*/
WDG->KR = WDG_KeyValue1;
WDG->KR = WDG_KeyValue2;
/*start watchdog*/
WDG->CR |= WDG_Mode_Wdg;
}
/*******************************************************************************
* Function Name : WDG_ITConfig
* Description : Enables or disables the WDG End of Count(EC) interrupt.
* Input : Newstate: new state of the End of Count(EC) WDG interrupt.
* This parameter can be: ENABLE or DISABLE.
* Output : None
* Return : None
*******************************************************************************/
void WDG_ITConfig(FunctionalState NewState)
{
if(NewState == ENABLE)
{
/* Enable the End of Count interrupt */
WDG->MR |= WDG_IT_EC;
}
else
{
/* Disable the End of Count interrupt */
WDG->MR &= ~WDG_IT_EC;
}
}
/*******************************************************************************
* Function Name : WDG_GetCounter
* Description : Gets the WDG’s current counter value.
* Input : None
* Output : None
* Return : The WDG current counter value
*******************************************************************************/
u16 WDG_GetCounter(void)
{
return WDG->CNT;
}
/*******************************************************************************
* Function Name : WDG_GetITStatus
* Description : Checks whether the WDG End of Count(EC) interrupt is occured or not.
* Input : None
* Output : None
* Return : The new state of WDG_IT (SET or RESET).
*******************************************************************************/
ITStatus WDG_GetITStatus(void)
{
if(((WDG->SR & WDG_IT_EC) != RESET )&&((WDG->MR & WDG_IT_EC) != RESET ))
{
return SET;
}
else
{
return RESET;
}
}
/*******************************************************************************
* Function Name : WDG_ClearITPendingBit
* Description : Clears the WDG's End of Count(EC) interrupt pending bit.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void WDG_ClearITPendingBit(void)
{
/* Clear the EC pending bit */
WDG->SR &= ~WDG_IT_EC;
}
/*******************************************************************************
* Function Name : WDG_ClearFlag
* Description : Clears the WDG's End of Count(EC) Flag.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void WDG_ClearFlag(void)
{
/* Clear the EC Flag */
WDG->SR &= ~WDG_FLAG_EC;
}
/*******************************************************************************
* Function Name : WDG_GetFlagStatus
* Description : Checks whether the WDG End of Count(EC) flag is set or not.
* Input : None
* Output : None
* Return : The new state of the WDG_FLAG (SET or RESET).
*******************************************************************************/
FlagStatus WDG_GetFlagStatus(void)
{
if((WDG->SR & WDG_FLAG_EC) != RESET )
{
return SET;
}
else
{
return RESET;
}
}
/*******************************************************************************
* Function Name : WDG_Reload
* Description : reloads the watchdog counter in watchdog mode
* Input : None
* Output : None
* Return : none
*******************************************************************************/
void WDG_Reload(void)
{
WDG->KR = WDG_KeyValue1;
WDG->KR = WDG_KeyValue2;
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

/tags/V2.08a/libstr91x/src/91x_wiu.c
0,0 → 1,201
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : 91x_wiu.c
* Author : MCD Application Team
* Version : V2.1
* Date : 12/22/2008
* Description : This file provides all the WIU firmware functions.
**********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH
* CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
* OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
* OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
* CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*********************************************************************************/
/* Standard include ----------------------------------------------------------*/
#include "91x_wiu.h"
#include "91x_scu.h"
/* Include of other module interface headers ---------------------------------*/
/* Local includes ------------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* WIU Masks "used" only in this module */
#define WIU_Enable 0x02
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Interface functions -------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************
* Function Name : WIU_Init
* Description : Initializes the WIU unit according to the specified parameters
* in the WIU_InitTypeDef structure.
* Input : WIU_InitStruct: pointer to a WIU_InitTypeDef structure that
* contains the configuration information for the WIU peripheral.
* Output : None
* Return : None
******************************************************************************/
void WIU_Init(WIU_InitTypeDef* WIU_InitStruct)
{
/* select the Wake-up line to be used */
WIU->MR |= WIU_InitStruct->WIU_Line;
/* configure the triggering edge */
if(WIU_InitStruct->WIU_TriggerEdge == WIU_RisingEdge)
{
/* trigger on rising edge */
WIU->TR |= WIU_InitStruct->WIU_Line;
}
else
{
/* trigger on falling edge */
WIU->TR &= ~WIU_InitStruct->WIU_Line;
}
}
/******************************************************************************
* Function Name : WIU_DeInit
* Description : Deinitializes the WIU registers to their default reset values.
* Input : None
* Output : None
* Return : None
******************************************************************************/
void WIU_DeInit(void)
{
/* initialize the WIU registers to their reset value */
SCU_APBPeriphReset(__WIU, ENABLE);
SCU_APBPeriphReset(__WIU, DISABLE);
}
/******************************************************************************
* Function Name : WIU_StructInit
* Description : Fills in a WIU_InitTypeDef structure with the reset value of
* each parameter.
* Input : WIU_InitStruct : pointer to a WIU_InitTypeDef structure
* which will be initialized.
* Output : None
* Return : None
******************************************************************************/
void WIU_StructInit(WIU_InitTypeDef* WIU_InitStruct)
{
/* initialize the WIU_InitStruct fields to their reset values */
WIU_InitStruct->WIU_Line = 0x0 ;
WIU_InitStruct->WIU_TriggerEdge = WIU_FallingEdge ;
}
/*******************************************************************************
* Function Name : WIU_Cmd
* Description : Enables or disables the WIU peripheral.
* Input : NewState: new state of the WIU peripheral (Newstate can be
* ENABLE or DISABLE)
* Output : None
* Return : None
*******************************************************************************/
void WIU_Cmd(FunctionalState NewState )
{
if(NewState == ENABLE)
{
/* Enable the Wake-up Unit (for interrupts and wake-up from low power modes) */
WIU->CTRL |= WIU_Enable ;
}
else
{
/* Disable the Wake-up Unit (for interrupts and wake-up from low power modes) */
WIU->CTRL &= ~WIU_Enable ;
}
}
/*******************************************************************************
* Function Name : WIU_GenerateSWInterrupt
* Description : Generates a Software interrupt.
* Input : - WIU_Line: specifies the WIU lines to be enabled or
* disabled. This parameter can be:
* - WIU_Linex: External interrupt line x where x(0..31)
* Output : None
* Return : None
*******************************************************************************/
void WIU_GenerateSWInterrupt(u32 WIU_Line)
{
WIU->INTR |= WIU_Line;
}
/*******************************************************************************
* Function Name : WIU_GetFlagStatus
* Description : Checks whether the specified WIU line flag is set or not.
* Input : - WIU_Line: specifies the WIU lines flag to check.
* This parameter can be:
* - WIU_Linex: External interrupt line x where x(0..31)
* Output : None
* Return : The new state of WIU_Line (SET or RESET).
*******************************************************************************/
FlagStatus WIU_GetFlagStatus(u32 WIU_Line)
{
if((WIU->PR & WIU_Line) != RESET)
{
return SET;
}
else
{
return RESET;
}
}
/*******************************************************************************
* Function Name : WIU_ClearFlag
* Description : Clears the WIU’s line pending flags.
* Input : - WIU_Line: specifies the WIU lines flags to clear.
* This parameter can be:
* - WIU_Linex: External interrupt line x where x(0..31)
* Output : None
* Return : None
*******************************************************************************/
void WIU_ClearFlag(u32 WIU_Line)
{
WIU->PR = WIU_Line;
}
/*******************************************************************************
* Function Name : WIU_GetITStatus
* Description : Checks whether the specified WIU line is asserted or not.
* Input : - WIU_Line: specifies the WIU lines to check.
* This parameter can be:
* - WIU_Linex: External interrupt line x where x(0..31)
* Output : None
* Return : The new state of WIU_Line (SET or RESET).
*******************************************************************************/
ITStatus WIU_GetITStatus(u32 WIU_Line)
{
if(((WIU->PR & WIU_Line) != RESET)&& ((WIU->MR & WIU_Line) != RESET))
{
return SET;
}
else
{
return RESET;
}
}
/*******************************************************************************
* Function Name : WIU_ClearITPendingBit
* Description : Clears the WIU’s line pending bits.
* Input : - WIU_Line: specifies the WIU lines to clear.
* This parameter can be:
* - WIU_Linex: External interrupt line x where x(0..31)
* Output : None
* Return : None
*******************************************************************************/
void WIU_ClearITPendingBit(u32 WIU_Line)
{
WIU->PR = WIU_Line;
}
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/