WebSVN - NaviCtrl - Diff - Rev 526 and 530


/*#######################################################################################*/
/* !!! THIS IS NOT FREE SOFTWARE !!!                                                     */
/*#######################################################################################*/
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// + www.MikroKopter.com
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// + Software Nutzungsbedingungen (english version: see below)
// + der Fa. HiSystems GmbH, Flachsmeerstrasse 2, 26802 Moormerland - nachfolgend Lizenzgeber genannt -
// + Der Lizenzgeber räumt dem Kunden ein nicht-ausschließliches, zeitlich und räumlich* unbeschränktes Recht ein, die im den
// + Mikrocontroller verwendete Firmware für die Hardware Flight-Ctrl, Navi-Ctrl, BL-Ctrl, MK3Mag & PC-Programm MikroKopter-Tool 
// + - nachfolgend Software genannt - nur für private Zwecke zu nutzen.
// + Der Einsatz dieser Software ist nur auf oder mit Produkten des Lizenzgebers zulässig.
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// + Die vom Lizenzgeber gelieferte Software ist urheberrechtlich geschützt. Alle Rechte an der Software sowie an sonstigen im
// + Rahmen der Vertragsanbahnung und Vertragsdurchführung überlassenen Unterlagen stehen im Verhältnis der Vertragspartner ausschließlich dem Lizenzgeber zu.
// + Die in der Software enthaltenen Copyright-Vermerke, Markenzeichen, andere Rechtsvorbehalte, Seriennummern sowie
// + sonstige der Programmidentifikation dienenden Merkmale dürfen vom Kunden nicht verändert oder unkenntlich gemacht werden.
// + Der Kunde trifft angemessene Vorkehrungen für den sicheren Einsatz der Software. Er wird die Software gründlich auf deren
// + Verwendbarkeit zu dem von ihm beabsichtigten Zweck testen, bevor er diese operativ einsetzt.
// + Die Haftung des Lizenzgebers wird - soweit gesetzlich zulässig - begrenzt in Höhe des typischen und vorhersehbaren
// + Schadens. Die gesetzliche Haftung bei Personenschäden und nach dem Produkthaftungsgesetz bleibt unberührt. Dem Lizenzgeber steht jedoch der Einwand 
// + des Mitverschuldens offen.
// + Der Kunde trifft angemessene Vorkehrungen für den Fall, dass die Software ganz oder teilweise nicht ordnungsgemäß arbeitet.
// + Er wird die Software gründlich auf deren Verwendbarkeit zu dem von ihm beabsichtigten Zweck testen, bevor er diese operativ einsetzt.
// + Der Kunde wird er seine Daten vor Einsatz der Software nach dem Stand der Technik sichern.
// + Der Kunde ist darüber unterrichtet, dass der Lizenzgeber seine Daten im zur Vertragsdurchführung erforderlichen Umfang
// + und auf Grundlage der Datenschutzvorschriften erhebt, speichert, verarbeitet und, sofern notwendig, an Dritte übermittelt.
// + *) Die räumliche Nutzung bezieht sich nur auf den Einsatzort, nicht auf die Reichweite der programmierten Software.
// + #### ENDE DER NUTZUNGSBEDINGUNGEN ####'
// +  Hinweis: Informationen über erweiterte Nutzungsrechte (wie z.B. Nutzung für nicht-private Zwecke) sind auf Anfrage per Email an info(@)hisystems.de verfügbar.
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// + Software LICENSING TERMS
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// + of HiSystems GmbH, Flachsmeerstrasse 2, 26802 Moormerland, Germany - the Licensor -
// + The Licensor grants the customer a non-exclusive license to use the microcontroller firmware of the Flight-Ctrl, Navi-Ctrl, BL-Ctrl, and MK3Mag hardware 
// + (the Software) exclusively for private purposes. The License is unrestricted with respect to time and territory*.
// + The Software may only be used with the Licensor's products.
// + The Software provided by the Licensor is protected by copyright. With respect to the relationship between the parties to this
// + agreement, all rights pertaining to the Software and other documents provided during the preparation and execution of this
// + agreement shall be the property of the Licensor.
// + The information contained in the Software copyright notices, trademarks, other legal reservations, serial numbers and other
// + features that can be used to identify the program may not be altered or defaced by the customer.
// + The customer shall be responsible for taking reasonable precautions
// + for the safe use of the Software. The customer shall test the Software thoroughly regarding its suitability for the
// + intended purpose before implementing it for actual operation. The Licensor's liability shall be limited to the extent of typical and
// + foreseeable damage to the extent permitted by law, notwithstanding statutory liability for bodily injury and product
// + liability. However, the Licensor shall be entitled to the defense of contributory negligence.
// + The customer will take adequate precautions in the case, that the software is not working properly. The customer will test
// + the software for his purpose before any operational usage. The customer will backup his data before using the software.
// + The customer understands that the Licensor collects, stores and processes, and, where required, forwards, customer data
// + to third parties to the extent necessary for executing the agreement, subject to applicable data protection and privacy regulations.
// + *) The territory aspect only refers to the place where the Software is used, not its programmed range.
// + #### END OF LICENSING TERMS ####
// + Note: For information on license extensions (e.g. commercial use), please contact us at info(@)hisystems.de.
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
#include <string.h>
#include <stdio.h>
#include "91x_lib.h"
#include "i2c.h"
#include "uart1.h"
#include "timer1.h"
#include "eeprom.h"
#include "led.h"
#include "crc16.h"
 
 
 
// The EEPROM M24C64 (64k) ist connected via I2C1 interface to the controller.
#define EEPROM_I2C I2C1
 
// The E0, E2, E3 pins are set to low. Therefore the slave adressbits b3, b2, b1 are 0.
 
#define EEPROM_I2C_ADDRESS      0xA0
#define EEPROM_SIZE                     65536L  // 64k bytes
#define EEPROM_WRITE            1
#define EEPROM_READ                     0
 
// timing
#define I2C_IDLE_TIMEOUT                150 // 150 ms
#define I2C_TRANSFER_TIMEOUT    150 // 150 ms
#define I2C_ACCESS_RETRYS               20      // retry 20 times
 
// globals for rx handler
volatile u8     *EEPROM_pData = 0;
volatile u16 EEPROM_DataLen = 0;
 
// rx data handler for eeprom data read access
void EEPROM_RxDataHandler(u8* pRxBuffer, u8 RxBufferSize)
{       // if number of byte are matching
        if((RxBufferSize == EEPROM_DataLen))
        {       //copy data from primary buffer to target buffer 
                if(EEPROM_pData) memcpy((u8*)EEPROM_pData, pRxBuffer, EEPROM_DataLen);
        }        
}
 
// ----------------------------------------------------------------------------------------
EEPROM_Result_t EEPROM_Transfer(u8 Direction, u16 Address, u8 *pData, u16 DataLen)
{
        u16 i;
        u8 retry = 0;  
        EEPROM_Result_t retval = EEPROM_ERROR_UNKNOWN;
 
        if(((u32)Address + (u32)DataLen) >= (EEPROM_SIZE - 1))
        {
                retval = EEPROM_ERROR_OUT_OF_ADDRESS_RANGE;
                return(retval);
        }
        if((DataLen+2) > I2C_BUFFER_LEN)
        {
                retval = EEPROM_I2C_BUFFER_OVERRUN;
                return(retval);
        }
        do
        {
                if(!I2CBus_LockBuffer(EEPROM_I2C, I2C_IDLE_TIMEOUT)) return EEPROM_ERROR_I2C_IDLE_TIMEOUT;
                // buffer is now locked
                u8 TxBytes = 0;
                u8 TxData[255];
                // transmitt address
                TxData[TxBytes++] = (u8)(0x00FF & (Address>>8));
                TxData[TxBytes++] = (u8)(0x00FF & Address);
                if(Direction == EEPROM_WRITE)
                {       // copy data to i2c transfer buffer
                        for(i = 0; i<DataLen;i++)
                        {
                                TxData[TxBytes++] = pData[i];
                        }
                        // prepare pointer to rx data
                        EEPROM_pData = 0;
                        EEPROM_DataLen = 0;
                        // start transmission
                        if(!I2CBus_Transmission(EEPROM_I2C, EEPROM_I2C_ADDRESS, TxData, TxBytes, 0, 0))
                        {
                                return(retval);
                        }
                }
                else // Direction == EEPROM_READ
                {
                        // prepare pointer to rx data
                        EEPROM_pData = pData;
                        EEPROM_DataLen = DataLen;
                        // start transmission
                        if(!I2CBus_Transmission(EEPROM_I2C, EEPROM_I2C_ADDRESS, TxData, TxBytes, &EEPROM_RxDataHandler, DataLen))
                        {
                                return(retval);
                        }
                }
                //wait for end of this transfer
                if(I2CBus_WaitForEndOfTransmission(EEPROM_I2C, I2C_TRANSFER_TIMEOUT))
                {
                        if(I2CBus(EEPROM_I2C)->Error == I2C_ERROR_NONE) return(EEPROM_SUCCESS);
                        else retval = EEPROM_DATA_TRANSFER_INCOMPLETE;
                }
                else// i2c transfer timed out
                {
                        return(EEPROM_ERROR_I2C_TRANSFER_TIMEOUT);     
                }
                // or retry             
        } while(++retry < I2C_ACCESS_RETRYS);
        return(retval);
}
 
EEPROM_Result_t EEPROM_WriteBlock(u16 Address, u8 *pData, u16 DataLen)
{
        u16 len;
        EEPROM_Result_t retval;
 
        // there can be 32 bytes written in a single cycle if the adresses are locates in the same row
        // i.e. the upper 11 bits of the addres are constant
        #define EEPROM_WRITE_BLOCK_SIZE 32
 
        len = EEPROM_WRITE_BLOCK_SIZE - Address%EEPROM_WRITE_BLOCK_SIZE; // number of bytes to match the next row
        if(len >= DataLen) len = DataLen; // do not write more than neccesarry
 
        do
        {
                retval = EEPROM_Transfer(EEPROM_WRITE, Address, pData, len);
                Address += len; // Address of the next row
                pData += len;   // pointer to start of next data block
                DataLen -= len; // reduce the number of to be transmitted
                if(DataLen > EEPROM_WRITE_BLOCK_SIZE) len = EEPROM_WRITE_BLOCK_SIZE; // limit next block size to 32
                else len = DataLen;
        }
        while(DataLen && (retval == EEPROM_SUCCESS)); // repeat until all data have been sent and no error has occured
 
        return(retval);
}
 
// a data block can be subsequently read after setting the start address once
EEPROM_Result_t EEPROM_ReadBlock(u16 Address, u8 *pData, u16 DataLen)
{
        EEPROM_Result_t retval = EEPROM_ERROR_UNKNOWN;
        u16 AdrOffset = 0;
        u16 RxLen;
 
        while(DataLen > 0)
        {
                if(DataLen > I2C_BUFFER_LEN - 2) RxLen = I2C_BUFFER_LEN - 2;
                else RxLen = DataLen;
           
                retval = EEPROM_Transfer(EEPROM_READ, Address+AdrOffset, &(pData[AdrOffset]), RxLen);
                if(retval != EEPROM_SUCCESS) break;
                AdrOffset += RxLen;
                DataLen -= RxLen;
        }
        return(retval);
}
 
u8 EEPROM_Init(void)
{
        u8 data[20];
        u8 i, retval = 0;
        UART1_PutString("\r\n EEprom init..");
        // check if data can be read from eeprom
        for(i=0;i<10;i++)
        {
                UART1_Putchar('.');
                if(EEPROM_SUCCESS == EEPROM_ReadBlock(0, data, 20)) retval = 1;
                if(retval) break;              
        }
        if(retval)  UART1_PutString("ok");
        else            UART1_PutString("failed !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
        return(retval);
}
 
 
void WriteLicenseToEEPROM(u8 kompatibel)
{
 
        u16 crc,crc2;
    EEPROM_Result_t retval = EEPROM_ERROR_UNKNOWN;
        crc = kompatibel;
        crc += CRC16(LicensePtr,LICENSE_SIZE_TEXT);
        EEPROM_ReadBlock(EEPROM_ADR_LICENSE_DATA_CRC,(u8 *)&crc2,2);
   if((crc != crc2) || (crc == 0xffff))
   {
 
        retval = EEPROM_WriteBlock(EEPROM_ADR_LICENSE_DATA,LicensePtr,LICENSE_SIZE_TEXT);
        if(retval == EEPROM_SUCCESS) EEPROM_WriteBlock(EEPROM_ADR_LICENSE_DATA_CRC,(u8 *)&crc,2);
 
 
 
 
 
 
   }
 
}
 
void ClearLicenseText(void)
{
 u32 i;
 for(i=0; i < LICENSE_SIZE_TEXT;i++) LicensePtr[i] = 0; //Achtung: das leert die ganze Struktur, nicht nur den Namen
}
 
void DeleteLicenseInEEPROM(void)
{
 ClearLicenseText();
 WriteLicenseToEEPROM(0);
}
 
u8 ReadLicenseFromEEPROM(void)
{
        u8 retval = 0, tmp;
 
        u16 crc, crc2;
 
 
        tmp = EEPROM_ReadBlock(EEPROM_ADR_LICENSE_DATA,LicensePtr,LICENSE_SIZE_TEXT);
        if(EEPROM_SUCCESS == tmp) retval = 1;
 
        crc = EEPROM_LICENSE_DATA_KOMPATIBEL;
        crc += CRC16(LicensePtr,LICENSE_SIZE_TEXT);
        EEPROM_ReadBlock(EEPROM_ADR_LICENSE_DATA_CRC,(u8 *)&crc2,2);
 
        if(crc != crc2) retval++;
        if(retval && LicensePtr[0] != 0 && LicensePtr[0] != 0xff)  
         {
 
 
          return(1);
         }
        else           
         {
 
          ClearLicenseText();
          return(0);
         }
}
 
 
 
 
 
Subversion Repositories NaviCtrl

(root)/tags/V2.14b/eeprom.c @ 748 - Rev 526 → 530
