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| Rev | Author | Line No. | Line |
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| 41 | ingob | 1 | /*#######################################################################################*/ |
| 2 | /* !!! THIS IS NOT FREE SOFTWARE !!! */ |
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| 3 | /*#######################################################################################*/ |
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| 4 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 5 | // + Copyright (c) 2008 Ingo Busker, Holger Buss |
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| 6 | // + Nur für den privaten Gebrauch |
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| 7 | // + FOR NON COMMERCIAL USE ONLY |
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| 8 | // + www.MikroKopter.com |
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| 9 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 10 | // + Es gilt für das gesamte Projekt (Hardware, Software, Binärfiles, Sourcecode und Dokumentation), |
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| 11 | // + dass eine Nutzung (auch auszugsweise) nur für den privaten (nicht-kommerziellen) Gebrauch zulässig ist. |
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| 12 | // + Sollten direkte oder indirekte kommerzielle Absichten verfolgt werden, ist mit uns (info@mikrokopter.de) Kontakt |
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| 13 | // + bzgl. der Nutzungsbedingungen aufzunehmen. |
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| 14 | // + Eine kommerzielle Nutzung ist z.B.Verkauf von MikroKoptern, Bestückung und Verkauf von Platinen oder Bausätzen, |
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| 15 | // + Verkauf von Luftbildaufnahmen, usw. |
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| 16 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 17 | // + Werden Teile des Quellcodes (mit oder ohne Modifikation) weiterverwendet oder veröffentlicht, |
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| 18 | // + unterliegen sie auch diesen Nutzungsbedingungen und diese Nutzungsbedingungen incl. Copyright müssen dann beiliegen |
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| 19 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 20 | // + Sollte die Software (auch auszugesweise) oder sonstige Informationen des MikroKopter-Projekts |
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| 21 | // + auf anderen Webseiten oder sonstigen Medien veröffentlicht werden, muss unsere Webseite "http://www.mikrokopter.de" |
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| 22 | // + eindeutig als Ursprung verlinkt werden |
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| 23 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 24 | // + Keine Gewähr auf Fehlerfreiheit, Vollständigkeit oder Funktion |
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| 25 | // + Benutzung auf eigene Gefahr |
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| 26 | // + Wir übernehmen keinerlei Haftung für direkte oder indirekte Personen- oder Sachschäden |
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| 27 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 28 | // + Die PORTIERUNG der Software (oder Teile davon) auf andere Systeme (ausser der Hardware von www.mikrokopter.de) ist nur |
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| 29 | // + mit unserer Zustimmung zulässig |
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| 30 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 31 | // + Die Funktion printf_P() unterliegt ihrer eigenen Lizenz und ist hiervon nicht betroffen |
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| 32 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 33 | // + Redistributions of source code (with or without modifications) must retain the above copyright notice, |
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| 34 | // + this list of conditions and the following disclaimer. |
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| 35 | // + * Neither the name of the copyright holders nor the names of contributors may be used to endorse or promote products derived |
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| 36 | // + from this software without specific prior written permission. |
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| 37 | // + * The use of this project (hardware, software, binary files, sources and documentation) is only permitted |
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| 38 | // + for non-commercial use (directly or indirectly) |
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| 39 | // + Commercial use (for excample: selling of MikroKopters, selling of PCBs, assembly, ...) is only permitted |
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| 40 | // + with our written permission |
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| 41 | // + * If sources or documentations are redistributet on other webpages, out webpage (http://www.MikroKopter.de) must be |
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| 42 | // + clearly linked as origin |
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| 43 | // + * PORTING this software (or part of it) to systems (other than hardware from www.mikrokopter.de) is NOT allowed |
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| 44 | // |
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| 45 | // + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 46 | // + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 47 | // + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 48 | // + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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| 49 | // + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 50 | // + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 51 | // + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 52 | // + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 53 | // + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 54 | // + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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| 55 | // + POSSIBILITY OF SUCH DAMAGE. |
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| 56 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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| 57 | //#include <stdio.h> |
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| 58 | #include "91x_lib.h" |
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| 59 | #include "uart1.h" |
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| 60 | |||
| 110 | killagreg | 61 | #define UART2_BAUD_RATE 57600 //Baud Rate for the serial interfaces |
| 62 | |||
| 63 | |||
| 41 | ingob | 64 | /********************************************************/ |
| 65 | /* Initialize UART2 */ |
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| 66 | /********************************************************/ |
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| 67 | void UART2_Init(void) |
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| 68 | { |
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| 69 | UART_InitTypeDef UART_InitStructure; |
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| 70 | GPIO_InitTypeDef GPIO_InitStructure; |
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| 71 | |||
| 110 | killagreg | 72 | UART1_PutString("\r\n UART2 init..."); |
| 41 | ingob | 73 | |
| 74 | SCU_APBPeriphClockConfig(__UART2, ENABLE); // Enable the UART2 Clock |
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| 75 | |||
| 76 | SCU_APBPeriphClockConfig(__GPIO5, ENABLE); // Enable the GPIO5 Clock |
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| 77 | /*Configure UART2_Rx pin GPIO5.2*/ |
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| 78 | GPIO_StructInit(&GPIO_InitStructure); |
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| 79 | GPIO_InitStructure.GPIO_Direction = GPIO_PinInput; |
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| 80 | GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; |
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| 81 | GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull; |
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| 82 | GPIO_InitStructure.GPIO_IPConnected = GPIO_IPConnected_Enable; |
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| 83 | GPIO_InitStructure.GPIO_Alternate = GPIO_InputAlt1; // UART2_RxD |
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| 84 | GPIO_Init(GPIO5, &GPIO_InitStructure); |
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| 85 | |||
| 86 | SCU_APBPeriphClockConfig(__GPIO3, ENABLE); // Enable the GPIO3 Clock |
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| 87 | /*Configure UART2_Tx pin GPIO3.0*/ |
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| 88 | GPIO_StructInit(&GPIO_InitStructure); |
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| 89 | GPIO_InitStructure.GPIO_Direction = GPIO_PinOutput; |
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| 90 | GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; |
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| 91 | GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull; |
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| 92 | GPIO_InitStructure.GPIO_Alternate = GPIO_OutputAlt2; // UART2_TX |
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| 93 | GPIO_Init(GPIO3, &GPIO_InitStructure); |
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| 94 | |||
| 95 | |||
| 96 | /* UART2 configured as follow: |
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| 97 | - Word Length = 8 Bits |
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| 98 | - One Stop Bit |
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| 99 | - No parity |
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| 100 | - BaudRate = 57600 baud |
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| 101 | - Hardware flow control Disabled |
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| 102 | - Receive and transmit enabled |
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| 103 | - Receive and transmit FIFOs are Disabled |
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| 104 | */ |
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| 105 | UART_StructInit(&UART_InitStructure); |
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| 106 | UART_InitStructure.UART_WordLength = UART_WordLength_8D; |
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| 107 | UART_InitStructure.UART_StopBits = UART_StopBits_1; |
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| 108 | UART_InitStructure.UART_Parity = UART_Parity_No ; |
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| 110 | killagreg | 109 | UART_InitStructure.UART_BaudRate = UART2_BAUD_RATE; |
| 41 | ingob | 110 | UART_InitStructure.UART_HardwareFlowControl = UART_HardwareFlowControl_None; |
| 111 | UART_InitStructure.UART_Mode = UART_Mode_Tx_Rx; |
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| 112 | UART_InitStructure.UART_FIFO = UART_FIFO_Enable; |
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| 113 | UART_InitStructure.UART_TxFIFOLevel = UART_FIFOLevel_1_2; |
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| 114 | UART_InitStructure.UART_RxFIFOLevel = UART_FIFOLevel_1_2; |
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| 115 | |||
| 116 | UART_DeInit(UART2); // reset uart 2 to default |
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| 117 | UART_Init(UART2, &UART_InitStructure); // initialize uart 2 |
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| 118 | |||
| 119 | // enable uart 2 interrupts selective |
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| 120 | UART_ITConfig(UART2, UART_IT_Receive | UART_IT_ReceiveTimeOut, ENABLE); |
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| 121 | UART_Cmd(UART2, ENABLE); // enable uart 2 |
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| 122 | // configure the uart 2 interupt line as an IRQ with priority 9 (0 is highest) |
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| 123 | VIC_Config(UART2_ITLine, VIC_IRQ, 9); |
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| 124 | // enable the uart 2 IRQ |
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| 125 | VIC_ITCmd(UART2_ITLine, ENABLE); |
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| 126 | |||
| 110 | killagreg | 127 | UART1_PutString("ok"); |
| 41 | ingob | 128 | } |
| 129 | |||
| 130 | |||
| 131 | void UART2_Deinit(void) |
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| 132 | { |
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| 133 | GPIO_InitTypeDef GPIO_InitStructure; |
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| 134 | |||
| 110 | killagreg | 135 | UART1_PutString("\r\n UART2 deinit..."); |
| 41 | ingob | 136 | VIC_ITCmd(UART2_ITLine, DISABLE); // disable the uart 2 IRQ |
| 137 | UART_Cmd(UART2, DISABLE); // disable uart 2 |
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| 138 | UART_DeInit(UART2); // reset uart 0 to default |
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| 139 | |||
| 140 | SCU_APBPeriphClockConfig(__UART2, DISABLE); // disable the UART2 Clock |
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| 141 | |||
| 142 | SCU_APBPeriphClockConfig(__GPIO5, ENABLE); |
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| 143 | // unmap UART2 from FC |
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| 144 | // set port pin 5.2 (serial data from FC) to input and disconnect from IP |
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| 145 | GPIO_StructInit(&GPIO_InitStructure); |
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| 146 | GPIO_InitStructure.GPIO_Direction = GPIO_PinInput; |
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| 147 | GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; |
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| 148 | GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull; |
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| 149 | GPIO_InitStructure.GPIO_IPConnected = GPIO_IPConnected_Disable; |
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| 150 | GPIO_InitStructure.GPIO_Alternate = GPIO_InputAlt1; |
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| 151 | GPIO_Init(GPIO5, &GPIO_InitStructure); |
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| 152 | |||
| 153 | SCU_APBPeriphClockConfig(__GPIO3, ENABLE); |
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| 154 | // set port pin 3.0 (serial data to FC) to input and disconnect from IP |
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| 155 | GPIO_StructInit(&GPIO_InitStructure); |
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| 156 | GPIO_InitStructure.GPIO_Direction = GPIO_PinInput; |
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| 157 | GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; |
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| 158 | GPIO_InitStructure.GPIO_Type = GPIO_Type_PushPull; |
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| 159 | GPIO_InitStructure.GPIO_IPConnected = GPIO_IPConnected_Disable; |
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| 160 | GPIO_InitStructure.GPIO_Alternate = GPIO_InputAlt1; |
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| 161 | GPIO_Init(GPIO3, &GPIO_InitStructure); |
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| 162 | |||
| 110 | killagreg | 163 | UART1_PutString("ok"); |
| 41 | ingob | 164 | } |
| 165 | |||
| 166 | /********************************************************/ |
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| 167 | /* UART2 Interrupt Handler */ |
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| 168 | /********************************************************/ |
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| 169 | void UART2_IRQHandler(void) |
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| 170 | { |
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| 171 | // if receive irq or receive timeout irq has occured |
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| 172 | if((UART_GetITStatus(UART2, UART_IT_Receive) != RESET) || (UART_GetITStatus(UART2, UART_IT_ReceiveTimeOut) != RESET) ) |
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| 173 | { |
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| 174 | UART_ClearITPendingBit(UART2, UART_IT_Receive); // clear receive interrupt flag |
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| 175 | UART_ClearITPendingBit(UART2, UART_IT_ReceiveTimeOut); // clear receive timeout interrupt flag |
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| 176 | |||
| 177 | // if debug UART is UART2 |
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| 178 | if (DebugUART == UART2) |
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| 179 | { // forward received data to the UART1 tx buffer |
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| 180 | while(UART_GetFlagStatus(UART2, UART_FLAG_RxFIFOEmpty) != SET) |
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| 181 | { |
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| 182 | // wait for space in the tx buffer of the UART1 |
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| 183 | while(UART_GetFlagStatus(UART1, UART_FLAG_TxFIFOFull) == SET) {}; |
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| 184 | // move the byte from the rx buffer of UART2 to the tx buffer of UART1 |
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| 185 | UART_SendData(UART1, UART_ReceiveData(UART2)); |
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| 186 | } |
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| 187 | } |
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| 188 | else |
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| 189 | { |
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| 190 | // ignore serial data from the FC |
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| 191 | while(UART_GetFlagStatus(UART2, UART_FLAG_RxFIFOEmpty) != SET) |
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| 192 | UART_ReceiveData(UART2); |
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| 193 | } |
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| 194 | } // eof receive irq or receive timeout irq |
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| 195 | } |