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annotate Small_CPU/Src/spi.c @ 866:3a1c533f3840
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| author | heinrichsweikamp |
|---|---|
| date | Mon, 22 Jul 2024 16:40:14 +0200 |
| parents | 8f3a8c85a6c4 |
| children |
| 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" |
|
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27 #include "batteryGasGauge.h" |
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28 #include "pressure.h" |
| 143 | 29 |
| 38 | 30 //#include "gpio.h" |
| 31 | |
| 32 /* USER CODE BEGIN 0 */ | |
| 33 #include "scheduler.h" | |
| 34 | |
| 120 | 35 #ifdef DEBUG_GPIO |
| 38 | 36 extern void GPIO_new_DEBUG_LOW(void); |
| 37 extern void GPIO_new_DEBUG_HIGH(void); | |
| 120 | 38 #endif |
| 38 | 39 |
| 89 | 40 uint8_t data_error = 0; |
| 41 uint32_t data_error_time = 0; | |
| 143 | 42 uint8_t SPIDataRX = 0; /* Flag to signal that SPI RX callback has been triggered */ |
| 38 | 43 |
| 44 static void SPI_Error_Handler(void); | |
| 45 | |
| 46 /* USER CODE END 0 */ | |
| 47 | |
| 48 static uint8_t SPI_check_header_and_footer_ok(void); | |
| 143 | 49 static uint8_t DataEX_check_header_and_footer_shifted(void); |
| 38 | 50 |
| 51 SPI_HandleTypeDef hspi1; | |
| 52 SPI_HandleTypeDef hspi3; | |
| 53 | |
| 54 DMA_HandleTypeDef hdma_tx; | |
| 55 DMA_HandleTypeDef hdma_rx; | |
| 56 | |
| 57 // SPI3 init function | |
| 89 | 58 void MX_SPI3_Init(void) { |
| 59 hspi3.Instance = SPI3; | |
| 60 hspi3.Init.Mode = SPI_MODE_MASTER; | |
| 61 hspi3.Init.Direction = SPI_DIRECTION_2LINES; | |
| 62 hspi3.Init.DataSize = SPI_DATASIZE_8BIT; | |
| 63 hspi3.Init.CLKPolarity = SPI_POLARITY_HIGH; | |
| 64 hspi3.Init.CLKPhase = SPI_PHASE_1EDGE; | |
| 65 hspi3.Init.NSS = SPI_NSS_SOFT; | |
| 66 hspi3.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256; | |
| 67 hspi3.Init.FirstBit = SPI_FIRSTBIT_MSB; | |
| 68 hspi3.Init.TIMode = SPI_TIMODE_DISABLED; | |
| 69 hspi3.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED; | |
| 70 hspi3.Init.CRCPolynomial = 7; | |
| 71 HAL_SPI_Init(&hspi3); | |
| 38 | 72 } |
| 73 | |
| 89 | 74 void MX_SPI3_DeInit(void) { |
| 75 HAL_SPI_DeInit(&hspi3); | |
| 38 | 76 } |
| 77 | |
| 89 | 78 uint8_t SPI3_ButtonAdjust(uint8_t *arrayInput, uint8_t *arrayOutput) { |
| 38 | 79 HAL_StatusTypeDef status; |
| 80 uint8_t answer[10]; | |
| 81 uint8_t rework[10]; | |
| 82 | |
| 83 rework[0] = 0xFF; | |
| 89 | 84 for (int i = 0; i < 3; i++) { |
| 38 | 85 // limiter |
| 89 | 86 if (arrayInput[i] == 0xFF) |
| 38 | 87 arrayInput[i] = 0xFE; |
| 89 | 88 if (arrayInput[i] >= 15) { |
| 82 | 89 // copy - ausl�se-schwelle |
| 89 | 90 rework[i + 1] = arrayInput[i]; |
| 38 | 91 // wieder-scharf-schalte-schwelle |
| 89 | 92 rework[i + 3 + 1] = arrayInput[i] - 10; |
| 93 } else if (arrayInput[i] >= 10) { | |
| 82 | 94 // copy - ausl�se-schwelle |
| 89 | 95 rework[i + 1] = arrayInput[i]; |
| 38 | 96 // wieder-scharf-schalte-schwelle |
| 89 | 97 rework[i + 3 + 1] = arrayInput[i] - 5; |
| 98 } else { | |
| 82 | 99 // copy - ausl�se-schwelle |
| 89 | 100 rework[i + 1] = 7; |
| 38 | 101 // wieder-scharf-schalte-schwelle |
| 89 | 102 rework[i + 3 + 1] = 6; |
| 38 | 103 } |
| 104 } | |
| 105 | |
| 106 status = HAL_OK; /* = 0 */ | |
| 89 | 107 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET); |
| 108 for (int i = 0; i < 7; i++) { | |
| 109 HAL_Delay(10); | |
| 110 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_RESET); | |
| 63 | 111 HAL_Delay(10); |
| 89 | 112 status += HAL_SPI_TransmitReceive(&hspi3, &rework[i], &answer[i], 1, |
| 113 20); | |
| 63 | 114 HAL_Delay(10); |
| 89 | 115 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET); |
| 38 | 116 } |
| 89 | 117 |
| 118 if (status == HAL_OK) { | |
| 119 for (int i = 0; i < 3; i++) { | |
| 120 arrayOutput[i] = answer[i + 2]; // first not, return of 0xFF not | |
| 121 } | |
| 38 | 122 return 1; |
| 89 | 123 } else |
| 124 | |
| 38 | 125 return 0; |
| 126 } | |
| 127 | |
| 128 // SPI5 init function | |
| 89 | 129 void MX_SPI1_Init(void) { |
| 130 hspi1.Instance = SPI1; | |
| 131 hspi1.Init.Mode = SPI_MODE_SLAVE; | |
| 132 hspi1.Init.Direction = SPI_DIRECTION_2LINES; | |
| 133 hspi1.Init.DataSize = SPI_DATASIZE_8BIT; | |
| 134 hspi1.Init.CLKPolarity = SPI_POLARITY_LOW; | |
| 135 hspi1.Init.CLKPhase = SPI_PHASE_1EDGE; | |
| 136 hspi1.Init.NSS = SPI_NSS_HARD_INPUT; //SPI_NSS_SOFT; | |
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137 hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_128; |
| 89 | 138 hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB; |
| 139 hspi1.Init.TIMode = SPI_TIMODE_DISABLED; | |
| 140 hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED; //_DISABLED; _ENABLED; | |
| 141 hspi1.Init.CRCPolynomial = 7; | |
| 142 HAL_SPI_Init(&hspi1); | |
| 38 | 143 } |
| 144 | |
| 89 | 145 void MX_SPI_DeInit(void) { |
| 146 HAL_SPI_DeInit(&hspi1); | |
| 38 | 147 } |
| 148 | |
| 89 | 149 void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi) { |
| 38 | 150 |
| 89 | 151 GPIO_InitTypeDef GPIO_InitStruct; |
| 38 | 152 |
| 89 | 153 if (hspi->Instance == SPI1) { |
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154 SPIDataRX = 0; |
| 89 | 155 // Peripheral clock enable |
| 156 __SPI1_CLK_ENABLE(); | |
| 157 __GPIOA_CLK_ENABLE(); | |
| 38 | 158 //SPI1 GPIO Configuration |
| 159 //PA4 ------> SPI1_CS | |
| 160 //PA5 ------> SPI1_SCK | |
| 161 //PA6 ------> SPI1_MISO | |
| 162 //PA7 ------> SPI1_MOSI | |
| 89 | 163 |
| 164 GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7; | |
| 38 | 165 // GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7; |
| 89 | 166 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; |
| 167 GPIO_InitStruct.Pull = GPIO_PULLUP; | |
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168 GPIO_InitStruct.Speed = GPIO_SPEED_FAST; /* Decision is based on errata which recommends FAST for GPIO at 90Mhz */ |
| 89 | 169 GPIO_InitStruct.Alternate = GPIO_AF5_SPI1; |
| 170 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); | |
| 38 | 171 |
| 172 //##-3- Configure the DMA streams ########################################## | |
| 173 // Configure the DMA handler for Transmission process | |
| 89 | 174 hdma_tx.Instance = DMA2_Stream3; |
| 175 hdma_tx.Init.Channel = DMA_CHANNEL_3; | |
| 176 hdma_tx.Init.Direction = DMA_MEMORY_TO_PERIPH; | |
| 177 hdma_tx.Init.PeriphInc = DMA_PINC_DISABLE; | |
| 178 hdma_tx.Init.MemInc = DMA_MINC_ENABLE; | |
| 38 | 179 hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE; |
| 89 | 180 hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; |
| 181 hdma_tx.Init.Mode = DMA_NORMAL; | |
| 182 hdma_tx.Init.Priority = DMA_PRIORITY_VERY_HIGH; | |
| 183 hdma_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; | |
| 184 hdma_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL; | |
| 185 hdma_tx.Init.MemBurst = DMA_MBURST_INC4; | |
| 186 hdma_tx.Init.PeriphBurst = DMA_PBURST_INC4; | |
| 187 | |
| 188 HAL_DMA_Init(&hdma_tx); | |
| 189 | |
| 38 | 190 // Associate the initialized DMA handle to the the SPI handle |
| 191 __HAL_LINKDMA(hspi, hdmatx, hdma_tx); | |
| 89 | 192 |
| 38 | 193 // Configure the DMA handler for Transmission process |
| 89 | 194 hdma_rx.Instance = DMA2_Stream0; |
| 195 hdma_rx.Init.Channel = DMA_CHANNEL_3; | |
| 196 hdma_rx.Init.Direction = DMA_PERIPH_TO_MEMORY; | |
| 197 hdma_rx.Init.PeriphInc = DMA_PINC_DISABLE; | |
| 198 hdma_rx.Init.MemInc = DMA_MINC_ENABLE; | |
| 38 | 199 hdma_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE; |
| 89 | 200 hdma_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; |
| 201 hdma_rx.Init.Mode = DMA_NORMAL; | |
| 202 hdma_rx.Init.Priority = DMA_PRIORITY_HIGH; | |
| 203 hdma_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; | |
| 204 hdma_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL; | |
| 205 hdma_rx.Init.MemBurst = DMA_MBURST_INC4; | |
| 206 hdma_rx.Init.PeriphBurst = DMA_PBURST_INC4; | |
| 38 | 207 |
| 208 HAL_DMA_Init(&hdma_rx); | |
| 89 | 209 |
| 210 // Associate the initialized DMA handle to the the SPI handle | |
| 211 __HAL_LINKDMA(hspi, hdmarx, hdma_rx); | |
| 38 | 212 |
| 89 | 213 //##-4- Configure the NVIC for DMA ######################################### |
| 214 //NVIC configuration for DMA transfer complete interrupt (SPI3_RX) | |
| 215 HAL_NVIC_SetPriority(DMA2_Stream0_IRQn, 1, 0); | |
| 216 HAL_NVIC_EnableIRQ(DMA2_Stream0_IRQn); | |
| 217 | |
| 218 // NVIC configuration for DMA transfer complete interrupt (SPI1_TX) | |
| 219 HAL_NVIC_SetPriority(DMA2_Stream3_IRQn, 1, 1); | |
| 220 HAL_NVIC_EnableIRQ(DMA2_Stream3_IRQn); | |
| 221 } else if (hspi->Instance == SPI3) { | |
| 222 __GPIOC_CLK_ENABLE(); | |
| 223 __SPI3_CLK_ENABLE(); | |
| 38 | 224 |
| 225 //SPI1 GPIO Configuration | |
| 226 //PC10 ------> SPI3_SCK | |
| 227 //PC11 ------> SPI3_MISO | |
| 228 //PC12 ------> SPI3_MOSI | |
| 229 //PA15 ------> SPI3_NSS (official) | |
| 230 //PC9 ------> SPI3_NSS (hw) | |
| 89 | 231 |
| 232 GPIO_InitStruct.Pin = GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12; | |
| 233 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; | |
| 234 GPIO_InitStruct.Pull = GPIO_PULLUP; | |
| 235 GPIO_InitStruct.Speed = GPIO_SPEED_FAST; | |
| 236 GPIO_InitStruct.Alternate = GPIO_AF6_SPI3; | |
| 237 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); | |
| 38 | 238 |
| 239 GPIO_InitStruct.Pin = GPIO_PIN_9; | |
| 240 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; | |
| 241 GPIO_InitStruct.Pull = GPIO_PULLUP; | |
| 242 GPIO_InitStruct.Speed = GPIO_SPEED_LOW; | |
| 89 | 243 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); |
| 38 | 244 |
| 89 | 245 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET); |
| 38 | 246 } |
| 247 } | |
| 248 | |
| 89 | 249 void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi) { |
| 250 if (hspi->Instance == SPI1) { | |
| 38 | 251 __SPI1_FORCE_RESET(); |
| 252 __SPI1_RELEASE_RESET(); | |
| 253 | |
| 254 //SPI1 GPIO Configuration | |
| 255 //PA5 ------> SPI1_SCK | |
| 256 //PA6 ------> SPI1_MISO | |
| 257 //PA7 ------> SPI1_MOSI | |
| 89 | 258 |
| 259 HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7); | |
| 38 | 260 |
| 261 HAL_DMA_DeInit(&hdma_tx); | |
| 262 HAL_DMA_DeInit(&hdma_rx); | |
| 89 | 263 |
| 38 | 264 HAL_NVIC_DisableIRQ(DMA2_Stream3_IRQn); |
| 265 HAL_NVIC_DisableIRQ(DMA2_Stream0_IRQn); | |
| 89 | 266 } else if (hspi->Instance == SPI3) { |
| 38 | 267 __SPI3_FORCE_RESET(); |
| 268 __SPI3_RELEASE_RESET(); | |
| 269 | |
| 270 //SPI1 GPIO Configuration | |
| 271 //PC10 ------> SPI3_SCK | |
| 272 //PC11 ------> SPI3_MISO | |
| 273 //PC12 ------> SPI3_MOSI | |
| 274 //PA15 ------> SPI3_NSS (official) | |
| 275 //PC9 ------> SPI3_NSS (hw) | |
| 89 | 276 HAL_GPIO_DeInit(GPIOC, GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12); |
| 38 | 277 } |
| 278 } | |
| 279 | |
| 89 | 280 void SPI_synchronize_with_Master(void) { |
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281 #ifdef USE_OLD_SYNC_METHOD |
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282 GPIO_InitTypeDef GPIO_InitStruct; |
| 89 | 283 // |
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284 __GPIOA_CLK_ENABLE(); |
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285 /**SPI1 GPIO Configuration |
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286 PA5 ------> SPI1_SCK |
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287 */ |
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288 GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5; |
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289 GPIO_InitStruct.Mode = GPIO_MODE_INPUT; |
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290 GPIO_InitStruct.Pull = GPIO_PULLUP; |
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291 GPIO_InitStruct.Speed = GPIO_SPEED_FAST; |
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292 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); |
| 89 | 293 // |
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294 HAL_Delay(10); |
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295 while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_4) == 0); |
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296 HAL_Delay(10); |
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297 while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_5) == 1); |
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298 HAL_Delay(50); |
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299 #endif |
| 38 | 300 } |
| 301 | |
| 89 | 302 void SPI_Start_single_TxRx_with_Master(void) { |
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303 static uint8_t DevicedataDelayCnt = 10; |
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304 static uint8_t DeviceDataPending = 0; |
| 38 | 305 uint8_t * pOutput; |
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306 HAL_StatusTypeDef retval; |
| 38 | 307 |
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308 if ((global.dataSendToSlave.getDeviceDataNow) || (DeviceDataPending)) |
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309 { |
| 559 | 310 if(((DevicedataDelayCnt == 0) || (((get_voltage() != 6.0) && (get_temperature() != 0.0) |
| 311 && global.deviceDataSendToMaster.hw_Info.checkCompass) | |
| 312 && global.deviceDataSendToMaster.hw_Info.checkADC))) /* devicedata complete? */ | |
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313 { |
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314 global.dataSendToSlave.getDeviceDataNow = 0; |
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315 DeviceDataPending = 0; |
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316 pOutput = (uint8_t*) &(global.deviceDataSendToMaster); |
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317 } |
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318 else |
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319 { |
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320 DeviceDataPending = 1; |
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321 DevicedataDelayCnt--; |
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322 pOutput = (uint8_t*) &(global.dataSendToMaster); |
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323 } |
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324 |
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325 } |
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326 else |
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327 { |
| 89 | 328 pOutput = (uint8_t*) &(global.dataSendToMaster); |
| 38 | 329 } |
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330 retval = HAL_SPI_TransmitReceive_DMA(&hspi1, pOutput,(uint8_t*) &(global.dataSendToSlave), EXCHANGE_BUFFERSIZE); |
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331 if ( retval!= HAL_OK) { |
| 38 | 332 SPI_Error_Handler(); |
| 333 } | |
| 334 } | |
| 335 | |
| 89 | 336 void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi) { |
| 337 /* restart SPI */ | |
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338 if (hspi == &hspi1) |
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339 { |
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340 if(SPI_check_header_and_footer_ok()) /* process timestamp provided by main */ |
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341 { |
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342 Scheduler_SyncToSPI(global.dataSendToSlave.header.checkCode[SPI_HEADER_INDEX_TX_TICK]); |
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343 } |
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344 else |
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345 { |
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346 Scheduler_SyncToSPI(0); /* => no async will be calculated */ |
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347 } |
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348 |
| 143 | 349 SPIDataRX = 1; |
| 350 | |
| 89 | 351 /* stop data exchange? */ |
| 352 if (global.mode == MODE_SHUTDOWN) { | |
| 353 global.dataSendToSlavePending = 0; | |
| 354 global.dataSendToSlaveIsValid = 1; | |
| 355 global.dataSendToSlaveIsNotValidCount = 0; | |
| 356 } | |
| 143 | 357 } |
| 358 } | |
| 82 | 359 |
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360 uint8_t SPI_Evaluate_RX_Data() |
| 143 | 361 { |
| 208 | 362 uint8_t resettimeout = 1; |
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363 uint8_t ret = SPIDataRX; |
| 208 | 364 |
| 143 | 365 if ((global.mode != MODE_SHUTDOWN) && ( global.mode != MODE_SLEEP) && (SPIDataRX)) |
| 366 { | |
| 367 SPIDataRX = 0; | |
| 89 | 368 /* data consistent? */ |
| 369 if (SPI_check_header_and_footer_ok()) { | |
| 208 | 370 global.dataSendToMaster.header.checkCode[SPI_HEADER_INDEX_RX_STATE] = SPI_RX_STATE_OK; |
| 143 | 371 // GPIO_new_DEBUG_HIGH(); //For debug. |
| 89 | 372 global.dataSendToSlaveIsValid = 1; |
| 373 global.dataSendToSlaveIsNotValidCount = 0; | |
| 208 | 374 /* Master signal a data shift outside of his control => reset own DMA and resync */ |
| 375 if(global.dataSendToSlave.header.checkCode[SPI_HEADER_INDEX_RX_STATE] == SPI_RX_STATE_SHIFTED) | |
| 143 | 376 { |
| 377 HAL_SPI_Abort_IT(&hspi1); | |
| 208 | 378 Scheduler_Request_sync_with_SPI(SPI_SYNC_METHOD_HARD); |
| 143 | 379 } |
| 277 | 380 else |
| 381 { | |
| 382 } | |
| 383 SPI_Start_single_TxRx_with_Master(); | |
| 208 | 384 } |
| 385 else | |
| 386 { | |
| 143 | 387 // GPIO_new_DEBUG_LOW(); //For debug. |
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388 global.dataSendToSlaveIsValid = 0; |
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389 global.dataSendToSlaveIsNotValidCount++; |
| 143 | 390 if(DataEX_check_header_and_footer_shifted()) |
| 391 { | |
| 208 | 392 |
| 393 /* Reset own DMA */ | |
| 394 if ((global.dataSendToSlaveIsNotValidCount % 10) == 1) //% 10 | |
| 143 | 395 { |
| 396 HAL_SPI_Abort_IT(&hspi1); /* reset DMA only once */ | |
| 397 } | |
| 208 | 398 /* Signal problem to master */ |
| 399 if ((global.dataSendToSlaveIsNotValidCount ) >= 2) | |
| 400 { | |
| 401 global.dataSendToMaster.header.checkCode[SPI_HEADER_INDEX_RX_STATE] = SPI_RX_STATE_SHIFTED; | |
| 402 } | |
| 143 | 403 } |
| 208 | 404 else /* handle received data as if no data would have been received */ |
| 405 { | |
| 406 global.dataSendToMaster.header.checkCode[SPI_HEADER_INDEX_RX_STATE] = SPI_RX_STATE_OFFLINE; | |
| 407 resettimeout = 0; | |
| 408 } | |
| 277 | 409 HAL_SPI_TransmitReceive_DMA(&hspi1,(uint8_t*) &(global.dataSendToMaster),(uint8_t*) &(global.dataSendToSlave), EXCHANGE_BUFFERSIZE); |
| 208 | 410 } |
| 143 | 411 |
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412 if(global.dataSendToSlaveIsValid) |
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413 { |
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414 global.dataSendToMaster.power_on_reset = 0; |
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415 global.deviceDataSendToMaster.power_on_reset = 0; |
| 89 | 416 |
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417 scheduleSpecial_Evaluate_DataSendToSlave(); |
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418 } |
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419 |
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420 if(resettimeout) |
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421 { |
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422 global.check_sync_not_running = 0; |
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423 } |
| 208 | 424 } |
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425 return ret; |
| 38 | 426 } |
| 427 | |
| 89 | 428 static uint8_t SPI_check_header_and_footer_ok(void) { |
| 429 if (global.dataSendToSlave.header.checkCode[0] != 0xBB) | |
| 38 | 430 return 0; |
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431 #ifdef USE_OLD_HEADER_FORMAT |
| 89 | 432 if (global.dataSendToSlave.header.checkCode[1] != 0x01) |
| 38 | 433 return 0; |
| 89 | 434 if (global.dataSendToSlave.header.checkCode[2] != 0x01) |
| 38 | 435 return 0; |
| 143 | 436 #endif |
| 89 | 437 if (global.dataSendToSlave.header.checkCode[3] != 0xBB) |
| 38 | 438 return 0; |
| 89 | 439 if (global.dataSendToSlave.footer.checkCode[0] != 0xF4) |
| 38 | 440 return 0; |
| 89 | 441 if (global.dataSendToSlave.footer.checkCode[1] != 0xF3) |
| 38 | 442 return 0; |
| 89 | 443 if (global.dataSendToSlave.footer.checkCode[2] != 0xF2) |
| 38 | 444 return 0; |
| 89 | 445 if (global.dataSendToSlave.footer.checkCode[3] != 0xF1) |
| 38 | 446 return 0; |
| 447 | |
| 448 return 1; | |
| 449 } | |
| 450 | |
| 143 | 451 |
| 452 /* Check if there is an empty frame providec by RTE (all 0) or even no data provided by RTE (all 0xFF) | |
| 453 * If that is not the case the DMA is somehow not in sync | |
| 454 */ | |
| 455 uint8_t DataEX_check_header_and_footer_shifted() | |
| 456 { | |
| 457 uint8_t ret = 1; | |
| 458 if((global.dataSendToSlave.footer.checkCode[0] == 0x00) | |
| 459 && (global.dataSendToSlave.footer.checkCode[1] == 0x00) | |
| 460 && (global.dataSendToSlave.footer.checkCode[2] == 0x00) | |
| 461 && (global.dataSendToSlave.footer.checkCode[3] == 0x00)) { ret = 0; } | |
| 462 | |
| 463 if((global.dataSendToSlave.footer.checkCode[0] == 0xff) | |
| 464 && (global.dataSendToSlave.footer.checkCode[1] == 0xff) | |
| 465 && (global.dataSendToSlave.footer.checkCode[2] == 0xff) | |
| 466 && (global.dataSendToSlave.footer.checkCode[3] == 0xff)) { ret = 0; } | |
| 467 | |
| 468 return ret; | |
| 469 } | |
| 470 | |
| 89 | 471 static void SPI_Error_Handler(void) { |
| 82 | 472 //The device is locks. Hard to recover. |
| 473 // while(1) | |
| 474 // { | |
| 475 // } | |
| 38 | 476 } |
| 477 | |
| 478 /** | |
| 89 | 479 * @} |
| 480 */ | |
| 38 | 481 |
| 482 /** | |
| 89 | 483 * @} |
| 484 */ | |
| 38 | 485 |
| 486 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |