Mercurial > public > ostc4
annotate Small_CPU/Src/spi.c @ 244:c20c73b0d034
Merged in janlmulder/ostc4/div-fixes-5 (pull request #15)
Improvement SPI stability/recoverability and cleanup, and trivial bugfixes
| author | heinrichsweikamp <bitbucket@heinrichsweikamp.com> |
|---|---|
| date | Tue, 09 Apr 2019 08:52:44 +0000 |
| parents | e4207f0aaa4b |
| children | b3685fbada3b |
| rev | line source |
|---|---|
| 38 | 1 /** |
| 89 | 2 ****************************************************************************** |
| 3 * @file spi.c | |
| 4 * @author heinrichs weikamp gmbh | |
| 5 * @version V0.0.1 | |
| 6 * @date 16-Sept-2014 | |
| 7 * @brief Source code for spi control | |
| 8 * | |
| 9 @verbatim | |
| 10 ============================================================================== | |
| 11 ##### How to use ##### | |
| 12 ============================================================================== | |
| 13 @endverbatim | |
| 14 ****************************************************************************** | |
| 15 * @attention | |
| 16 * | |
| 17 * <h2><center>© COPYRIGHT(c) 2014 heinrichs weikamp</center></h2> | |
| 18 * | |
| 19 ****************************************************************************** | |
| 20 */ | |
| 38 | 21 |
| 22 /* Includes ------------------------------------------------------------------*/ | |
| 143 | 23 |
| 24 #include "global_constants.h" | |
| 38 | 25 #include "spi.h" |
| 120 | 26 #include "dma.h" |
| 143 | 27 |
| 38 | 28 //#include "gpio.h" |
| 29 | |
| 30 /* USER CODE BEGIN 0 */ | |
| 31 #include "scheduler.h" | |
| 32 | |
| 120 | 33 #ifdef DEBUG_GPIO |
| 38 | 34 extern void GPIO_new_DEBUG_LOW(void); |
| 35 extern void GPIO_new_DEBUG_HIGH(void); | |
| 120 | 36 #endif |
| 38 | 37 |
| 89 | 38 uint8_t data_error = 0; |
| 39 uint32_t data_error_time = 0; | |
| 143 | 40 uint8_t SPIDataRX = 0; /* Flag to signal that SPI RX callback has been triggered */ |
| 38 | 41 |
| 42 static void SPI_Error_Handler(void); | |
| 43 | |
| 44 /* USER CODE END 0 */ | |
| 45 | |
| 46 static uint8_t SPI_check_header_and_footer_ok(void); | |
| 143 | 47 static uint8_t DataEX_check_header_and_footer_shifted(void); |
| 38 | 48 |
| 49 SPI_HandleTypeDef hspi1; | |
| 50 SPI_HandleTypeDef hspi3; | |
| 51 | |
| 52 DMA_HandleTypeDef hdma_tx; | |
| 53 DMA_HandleTypeDef hdma_rx; | |
| 54 | |
| 55 // SPI3 init function | |
| 89 | 56 void MX_SPI3_Init(void) { |
| 57 hspi3.Instance = SPI3; | |
| 58 hspi3.Init.Mode = SPI_MODE_MASTER; | |
| 59 hspi3.Init.Direction = SPI_DIRECTION_2LINES; | |
| 60 hspi3.Init.DataSize = SPI_DATASIZE_8BIT; | |
| 61 hspi3.Init.CLKPolarity = SPI_POLARITY_HIGH; | |
| 62 hspi3.Init.CLKPhase = SPI_PHASE_1EDGE; | |
| 63 hspi3.Init.NSS = SPI_NSS_SOFT; | |
| 64 hspi3.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256; | |
| 65 hspi3.Init.FirstBit = SPI_FIRSTBIT_MSB; | |
| 66 hspi3.Init.TIMode = SPI_TIMODE_DISABLED; | |
| 67 hspi3.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED; | |
| 68 hspi3.Init.CRCPolynomial = 7; | |
| 69 HAL_SPI_Init(&hspi3); | |
| 38 | 70 } |
| 71 | |
| 89 | 72 void MX_SPI3_DeInit(void) { |
| 73 HAL_SPI_DeInit(&hspi3); | |
| 38 | 74 } |
| 75 | |
| 89 | 76 uint8_t SPI3_ButtonAdjust(uint8_t *arrayInput, uint8_t *arrayOutput) { |
| 38 | 77 HAL_StatusTypeDef status; |
| 78 uint8_t answer[10]; | |
| 79 uint8_t rework[10]; | |
| 80 | |
| 81 rework[0] = 0xFF; | |
| 89 | 82 for (int i = 0; i < 3; i++) { |
| 38 | 83 // limiter |
| 89 | 84 if (arrayInput[i] == 0xFF) |
| 38 | 85 arrayInput[i] = 0xFE; |
| 89 | 86 if (arrayInput[i] >= 15) { |
| 82 | 87 // copy - ausl�se-schwelle |
| 89 | 88 rework[i + 1] = arrayInput[i]; |
| 38 | 89 // wieder-scharf-schalte-schwelle |
| 89 | 90 rework[i + 3 + 1] = arrayInput[i] - 10; |
| 91 } else if (arrayInput[i] >= 10) { | |
| 82 | 92 // copy - ausl�se-schwelle |
| 89 | 93 rework[i + 1] = arrayInput[i]; |
| 38 | 94 // wieder-scharf-schalte-schwelle |
| 89 | 95 rework[i + 3 + 1] = arrayInput[i] - 5; |
| 96 } else { | |
| 82 | 97 // copy - ausl�se-schwelle |
| 89 | 98 rework[i + 1] = 7; |
| 38 | 99 // wieder-scharf-schalte-schwelle |
| 89 | 100 rework[i + 3 + 1] = 6; |
| 38 | 101 } |
| 102 } | |
| 103 | |
| 104 status = HAL_OK; /* = 0 */ | |
| 89 | 105 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET); |
| 106 for (int i = 0; i < 7; i++) { | |
| 107 HAL_Delay(10); | |
| 108 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_RESET); | |
| 63 | 109 HAL_Delay(10); |
| 89 | 110 status += HAL_SPI_TransmitReceive(&hspi3, &rework[i], &answer[i], 1, |
| 111 20); | |
| 63 | 112 HAL_Delay(10); |
| 89 | 113 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET); |
| 38 | 114 } |
| 89 | 115 |
| 116 if (status == HAL_OK) { | |
| 117 for (int i = 0; i < 3; i++) { | |
| 118 arrayOutput[i] = answer[i + 2]; // first not, return of 0xFF not | |
| 119 } | |
| 38 | 120 return 1; |
| 89 | 121 } else |
| 122 | |
| 38 | 123 return 0; |
| 124 } | |
| 125 | |
| 126 // SPI5 init function | |
| 89 | 127 void MX_SPI1_Init(void) { |
| 128 hspi1.Instance = SPI1; | |
| 129 hspi1.Init.Mode = SPI_MODE_SLAVE; | |
| 130 hspi1.Init.Direction = SPI_DIRECTION_2LINES; | |
| 131 hspi1.Init.DataSize = SPI_DATASIZE_8BIT; | |
| 132 hspi1.Init.CLKPolarity = SPI_POLARITY_LOW; | |
| 133 hspi1.Init.CLKPhase = SPI_PHASE_1EDGE; | |
| 134 hspi1.Init.NSS = SPI_NSS_HARD_INPUT; //SPI_NSS_SOFT; | |
|
148
ee744c7160ce
Use SPI TX callback to synchronize to main CPU
Ideenmodellierer
parents:
143
diff
changeset
|
135 hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_128; |
| 89 | 136 hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB; |
| 137 hspi1.Init.TIMode = SPI_TIMODE_DISABLED; | |
| 138 hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED; //_DISABLED; _ENABLED; | |
| 139 hspi1.Init.CRCPolynomial = 7; | |
| 140 HAL_SPI_Init(&hspi1); | |
| 38 | 141 } |
| 142 | |
| 89 | 143 void MX_SPI_DeInit(void) { |
| 144 HAL_SPI_DeInit(&hspi1); | |
| 38 | 145 } |
| 146 | |
| 89 | 147 void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi) { |
| 38 | 148 |
| 89 | 149 GPIO_InitTypeDef GPIO_InitStruct; |
| 38 | 150 |
| 89 | 151 if (hspi->Instance == SPI1) { |
|
148
ee744c7160ce
Use SPI TX callback to synchronize to main CPU
Ideenmodellierer
parents:
143
diff
changeset
|
152 SPIDataRX = 0; |
| 89 | 153 // Peripheral clock enable |
| 154 __SPI1_CLK_ENABLE(); | |
| 155 __GPIOA_CLK_ENABLE(); | |
| 38 | 156 //SPI1 GPIO Configuration |
| 157 //PA4 ------> SPI1_CS | |
| 158 //PA5 ------> SPI1_SCK | |
| 159 //PA6 ------> SPI1_MISO | |
| 160 //PA7 ------> SPI1_MOSI | |
| 89 | 161 |
| 162 GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7; | |
| 38 | 163 // GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7; |
| 89 | 164 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; |
| 165 GPIO_InitStruct.Pull = GPIO_PULLUP; | |
|
124
4b355396557a
Change GPIO speed for SPI communication as recommended by STM32 Errata
Ideenmodellierer
parents:
120
diff
changeset
|
166 GPIO_InitStruct.Speed = GPIO_SPEED_FAST; /* Decision is based on errata which recommends FAST for GPIO at 90Mhz */ |
| 89 | 167 GPIO_InitStruct.Alternate = GPIO_AF5_SPI1; |
| 168 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); | |
| 38 | 169 |
| 170 //##-3- Configure the DMA streams ########################################## | |
| 171 // Configure the DMA handler for Transmission process | |
| 89 | 172 hdma_tx.Instance = DMA2_Stream3; |
| 173 hdma_tx.Init.Channel = DMA_CHANNEL_3; | |
| 174 hdma_tx.Init.Direction = DMA_MEMORY_TO_PERIPH; | |
| 175 hdma_tx.Init.PeriphInc = DMA_PINC_DISABLE; | |
| 176 hdma_tx.Init.MemInc = DMA_MINC_ENABLE; | |
| 38 | 177 hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE; |
| 89 | 178 hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; |
| 179 hdma_tx.Init.Mode = DMA_NORMAL; | |
| 180 hdma_tx.Init.Priority = DMA_PRIORITY_VERY_HIGH; | |
| 181 hdma_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; | |
| 182 hdma_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL; | |
| 183 hdma_tx.Init.MemBurst = DMA_MBURST_INC4; | |
| 184 hdma_tx.Init.PeriphBurst = DMA_PBURST_INC4; | |
| 185 | |
| 186 HAL_DMA_Init(&hdma_tx); | |
| 187 | |
| 38 | 188 // Associate the initialized DMA handle to the the SPI handle |
| 189 __HAL_LINKDMA(hspi, hdmatx, hdma_tx); | |
| 89 | 190 |
| 38 | 191 // Configure the DMA handler for Transmission process |
| 89 | 192 hdma_rx.Instance = DMA2_Stream0; |
| 193 hdma_rx.Init.Channel = DMA_CHANNEL_3; | |
| 194 hdma_rx.Init.Direction = DMA_PERIPH_TO_MEMORY; | |
| 195 hdma_rx.Init.PeriphInc = DMA_PINC_DISABLE; | |
| 196 hdma_rx.Init.MemInc = DMA_MINC_ENABLE; | |
| 38 | 197 hdma_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE; |
| 89 | 198 hdma_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; |
| 199 hdma_rx.Init.Mode = DMA_NORMAL; | |
| 200 hdma_rx.Init.Priority = DMA_PRIORITY_HIGH; | |
| 201 hdma_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; | |
| 202 hdma_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL; | |
| 203 hdma_rx.Init.MemBurst = DMA_MBURST_INC4; | |
| 204 hdma_rx.Init.PeriphBurst = DMA_PBURST_INC4; | |
| 38 | 205 |
| 206 HAL_DMA_Init(&hdma_rx); | |
| 89 | 207 |
| 208 // Associate the initialized DMA handle to the the SPI handle | |
| 209 __HAL_LINKDMA(hspi, hdmarx, hdma_rx); | |
| 38 | 210 |
| 89 | 211 //##-4- Configure the NVIC for DMA ######################################### |
| 212 //NVIC configuration for DMA transfer complete interrupt (SPI3_RX) | |
| 213 HAL_NVIC_SetPriority(DMA2_Stream0_IRQn, 1, 0); | |
| 214 HAL_NVIC_EnableIRQ(DMA2_Stream0_IRQn); | |
| 215 | |
| 216 // NVIC configuration for DMA transfer complete interrupt (SPI1_TX) | |
| 217 HAL_NVIC_SetPriority(DMA2_Stream3_IRQn, 1, 1); | |
| 218 HAL_NVIC_EnableIRQ(DMA2_Stream3_IRQn); | |
| 219 } else if (hspi->Instance == SPI3) { | |
| 220 __GPIOC_CLK_ENABLE(); | |
| 221 __SPI3_CLK_ENABLE(); | |
| 38 | 222 |
| 223 //SPI1 GPIO Configuration | |
| 224 //PC10 ------> SPI3_SCK | |
| 225 //PC11 ------> SPI3_MISO | |
| 226 //PC12 ------> SPI3_MOSI | |
| 227 //PA15 ------> SPI3_NSS (official) | |
| 228 //PC9 ------> SPI3_NSS (hw) | |
| 89 | 229 |
| 230 GPIO_InitStruct.Pin = GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12; | |
| 231 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; | |
| 232 GPIO_InitStruct.Pull = GPIO_PULLUP; | |
| 233 GPIO_InitStruct.Speed = GPIO_SPEED_FAST; | |
| 234 GPIO_InitStruct.Alternate = GPIO_AF6_SPI3; | |
| 235 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); | |
| 38 | 236 |
| 237 GPIO_InitStruct.Pin = GPIO_PIN_9; | |
| 238 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; | |
| 239 GPIO_InitStruct.Pull = GPIO_PULLUP; | |
| 240 GPIO_InitStruct.Speed = GPIO_SPEED_LOW; | |
| 89 | 241 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); |
| 38 | 242 |
| 89 | 243 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET); |
| 38 | 244 } |
| 245 } | |
| 246 | |
| 89 | 247 void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi) { |
| 248 if (hspi->Instance == SPI1) { | |
| 38 | 249 __SPI1_FORCE_RESET(); |
| 250 __SPI1_RELEASE_RESET(); | |
| 251 | |
| 252 //SPI1 GPIO Configuration | |
| 253 //PA5 ------> SPI1_SCK | |
| 254 //PA6 ------> SPI1_MISO | |
| 255 //PA7 ------> SPI1_MOSI | |
| 89 | 256 |
| 257 HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7); | |
| 38 | 258 |
| 259 HAL_DMA_DeInit(&hdma_tx); | |
| 260 HAL_DMA_DeInit(&hdma_rx); | |
| 89 | 261 |
| 38 | 262 HAL_NVIC_DisableIRQ(DMA2_Stream3_IRQn); |
| 263 HAL_NVIC_DisableIRQ(DMA2_Stream0_IRQn); | |
| 89 | 264 } else if (hspi->Instance == SPI3) { |
| 38 | 265 __SPI3_FORCE_RESET(); |
| 266 __SPI3_RELEASE_RESET(); | |
| 267 | |
| 268 //SPI1 GPIO Configuration | |
| 269 //PC10 ------> SPI3_SCK | |
| 270 //PC11 ------> SPI3_MISO | |
| 271 //PC12 ------> SPI3_MOSI | |
| 272 //PA15 ------> SPI3_NSS (official) | |
| 273 //PC9 ------> SPI3_NSS (hw) | |
| 89 | 274 HAL_GPIO_DeInit(GPIOC, GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12); |
| 38 | 275 } |
| 276 } | |
| 277 | |
| 89 | 278 void SPI_synchronize_with_Master(void) { |
|
148
ee744c7160ce
Use SPI TX callback to synchronize to main CPU
Ideenmodellierer
parents:
143
diff
changeset
|
279 #ifdef USE_OLD_SYNC_METHOD |
|
136
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
280 GPIO_InitTypeDef GPIO_InitStruct; |
| 89 | 281 // |
|
136
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
282 __GPIOA_CLK_ENABLE(); |
|
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
283 /**SPI1 GPIO Configuration |
|
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
284 PA5 ------> SPI1_SCK |
|
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
285 */ |
|
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
286 GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5; |
|
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
287 GPIO_InitStruct.Mode = GPIO_MODE_INPUT; |
|
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
288 GPIO_InitStruct.Pull = GPIO_PULLUP; |
|
148
ee744c7160ce
Use SPI TX callback to synchronize to main CPU
Ideenmodellierer
parents:
143
diff
changeset
|
289 GPIO_InitStruct.Speed = GPIO_SPEED_FAST; |
|
136
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
290 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); |
| 89 | 291 // |
|
136
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
292 HAL_Delay(10); |
|
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
293 while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_4) == 0); |
|
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
294 HAL_Delay(10); |
|
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
295 while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_5) == 1); |
|
148
ee744c7160ce
Use SPI TX callback to synchronize to main CPU
Ideenmodellierer
parents:
143
diff
changeset
|
296 HAL_Delay(50); |
|
136
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
297 #endif |
| 38 | 298 } |
| 299 | |
| 89 | 300 void SPI_Start_single_TxRx_with_Master(void) { |
| 38 | 301 uint8_t * pOutput; |
|
136
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
302 HAL_StatusTypeDef retval; |
| 38 | 303 |
| 89 | 304 if (global.dataSendToSlave.getDeviceDataNow) { |
| 38 | 305 global.dataSendToSlave.getDeviceDataNow = 0; |
| 89 | 306 pOutput = (uint8_t*) &(global.deviceDataSendToMaster); |
| 307 } else { | |
| 308 pOutput = (uint8_t*) &(global.dataSendToMaster); | |
| 38 | 309 } |
|
136
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
310 retval = HAL_SPI_TransmitReceive_DMA(&hspi1, pOutput,(uint8_t*) &(global.dataSendToSlave), EXCHANGE_BUFFERSIZE); |
|
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
311 if ( retval!= HAL_OK) { |
| 38 | 312 SPI_Error_Handler(); |
| 313 } | |
| 314 } | |
| 315 | |
| 89 | 316 void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi) { |
| 317 /* restart SPI */ | |
|
136
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
318 if (hspi == &hspi1) |
|
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
319 { |
| 208 | 320 Scheduler_SyncToSPI(); |
| 143 | 321 SPIDataRX = 1; |
| 322 | |
| 89 | 323 /* stop data exchange? */ |
| 324 if (global.mode == MODE_SHUTDOWN) { | |
| 325 global.mode = MODE_SLEEP; | |
| 326 global.dataSendToSlavePending = 0; | |
| 327 global.dataSendToSlaveIsValid = 1; | |
| 328 global.dataSendToSlaveIsNotValidCount = 0; | |
| 329 } | |
| 143 | 330 } |
| 331 } | |
| 82 | 332 |
| 143 | 333 void SPI_Evaluate_RX_Data() |
| 334 { | |
| 208 | 335 uint8_t resettimeout = 1; |
| 336 | |
| 143 | 337 if ((global.mode != MODE_SHUTDOWN) && ( global.mode != MODE_SLEEP) && (SPIDataRX)) |
| 338 { | |
| 339 SPIDataRX = 0; | |
| 89 | 340 /* data consistent? */ |
| 341 if (SPI_check_header_and_footer_ok()) { | |
| 208 | 342 global.dataSendToMaster.header.checkCode[SPI_HEADER_INDEX_RX_STATE] = SPI_RX_STATE_OK; |
| 143 | 343 // GPIO_new_DEBUG_HIGH(); //For debug. |
| 89 | 344 global.dataSendToSlaveIsValid = 1; |
| 345 global.dataSendToSlaveIsNotValidCount = 0; | |
| 208 | 346 /* Master signal a data shift outside of his control => reset own DMA and resync */ |
| 347 if(global.dataSendToSlave.header.checkCode[SPI_HEADER_INDEX_RX_STATE] == SPI_RX_STATE_SHIFTED) | |
| 143 | 348 { |
| 349 HAL_SPI_Abort_IT(&hspi1); | |
| 208 | 350 Scheduler_Request_sync_with_SPI(SPI_SYNC_METHOD_HARD); |
| 143 | 351 } |
| 352 else | |
| 353 { | |
| 354 } | |
| 208 | 355 } |
| 356 else | |
| 357 { | |
| 143 | 358 // GPIO_new_DEBUG_LOW(); //For debug. |
|
136
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
359 global.dataSendToSlaveIsValid = 0; |
|
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
360 global.dataSendToSlaveIsNotValidCount++; |
| 143 | 361 if(DataEX_check_header_and_footer_shifted()) |
| 362 { | |
| 208 | 363 |
| 364 /* Reset own DMA */ | |
| 365 if ((global.dataSendToSlaveIsNotValidCount % 10) == 1) //% 10 | |
| 143 | 366 { |
| 367 HAL_SPI_Abort_IT(&hspi1); /* reset DMA only once */ | |
| 368 } | |
| 208 | 369 /* Signal problem to master */ |
| 370 if ((global.dataSendToSlaveIsNotValidCount ) >= 2) | |
| 371 { | |
| 372 global.dataSendToMaster.header.checkCode[SPI_HEADER_INDEX_RX_STATE] = SPI_RX_STATE_SHIFTED; | |
| 373 } | |
| 143 | 374 } |
| 208 | 375 else /* handle received data as if no data would have been received */ |
| 376 { | |
| 377 global.dataSendToMaster.header.checkCode[SPI_HEADER_INDEX_RX_STATE] = SPI_RX_STATE_OFFLINE; | |
| 378 resettimeout = 0; | |
| 379 } | |
| 380 } | |
| 143 | 381 |
| 89 | 382 global.dataSendToMaster.power_on_reset = 0; |
| 383 global.deviceDataSendToMaster.power_on_reset = 0; | |
| 384 | |
| 143 | 385 scheduleSpecial_Evaluate_DataSendToSlave(); |
|
136
6ae8ba5683d6
Introduces abort of communication in case of a out of sync DMA transfer
Ideenmodellierer
parents:
124
diff
changeset
|
386 |
| 208 | 387 SPI_Start_single_TxRx_with_Master(); |
| 388 } | |
| 389 | |
| 390 if(resettimeout) | |
| 391 { | |
| 392 global.check_sync_not_running = 0; | |
| 143 | 393 } |
| 38 | 394 } |
| 395 | |
| 89 | 396 static uint8_t SPI_check_header_and_footer_ok(void) { |
| 397 if (global.dataSendToSlave.header.checkCode[0] != 0xBB) | |
| 38 | 398 return 0; |
|
148
ee744c7160ce
Use SPI TX callback to synchronize to main CPU
Ideenmodellierer
parents:
143
diff
changeset
|
399 #ifdef USE_OLD_HEADER_FORMAT |
| 89 | 400 if (global.dataSendToSlave.header.checkCode[1] != 0x01) |
| 38 | 401 return 0; |
| 89 | 402 if (global.dataSendToSlave.header.checkCode[2] != 0x01) |
| 38 | 403 return 0; |
| 143 | 404 #endif |
| 89 | 405 if (global.dataSendToSlave.header.checkCode[3] != 0xBB) |
| 38 | 406 return 0; |
| 89 | 407 if (global.dataSendToSlave.footer.checkCode[0] != 0xF4) |
| 38 | 408 return 0; |
| 89 | 409 if (global.dataSendToSlave.footer.checkCode[1] != 0xF3) |
| 38 | 410 return 0; |
| 89 | 411 if (global.dataSendToSlave.footer.checkCode[2] != 0xF2) |
| 38 | 412 return 0; |
| 89 | 413 if (global.dataSendToSlave.footer.checkCode[3] != 0xF1) |
| 38 | 414 return 0; |
| 415 | |
| 416 return 1; | |
| 417 } | |
| 418 | |
| 143 | 419 |
| 420 /* Check if there is an empty frame providec by RTE (all 0) or even no data provided by RTE (all 0xFF) | |
| 421 * If that is not the case the DMA is somehow not in sync | |
| 422 */ | |
| 423 uint8_t DataEX_check_header_and_footer_shifted() | |
| 424 { | |
| 425 uint8_t ret = 1; | |
| 426 if((global.dataSendToSlave.footer.checkCode[0] == 0x00) | |
| 427 && (global.dataSendToSlave.footer.checkCode[1] == 0x00) | |
| 428 && (global.dataSendToSlave.footer.checkCode[2] == 0x00) | |
| 429 && (global.dataSendToSlave.footer.checkCode[3] == 0x00)) { ret = 0; } | |
| 430 | |
| 431 if((global.dataSendToSlave.footer.checkCode[0] == 0xff) | |
| 432 && (global.dataSendToSlave.footer.checkCode[1] == 0xff) | |
| 433 && (global.dataSendToSlave.footer.checkCode[2] == 0xff) | |
| 434 && (global.dataSendToSlave.footer.checkCode[3] == 0xff)) { ret = 0; } | |
| 435 | |
| 436 return ret; | |
| 437 } | |
| 438 | |
| 89 | 439 static void SPI_Error_Handler(void) { |
| 82 | 440 //The device is locks. Hard to recover. |
| 441 // while(1) | |
| 442 // { | |
| 443 // } | |
| 38 | 444 } |
| 445 | |
| 446 /** | |
| 89 | 447 * @} |
| 448 */ | |
| 38 | 449 |
| 450 /** | |
| 89 | 451 * @} |
| 452 */ | |
| 38 | 453 |
| 454 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |