Mercurial > public > ostc4
annotate Small_CPU/Src/spi.c @ 916:4832981f9af8 Evo_2_23
External sensor UART: Switch to DMA TX transfers:
The previous version used polling tx function to transfer data. Because of the short command length of the protocols supported this was no big issue. New protocolls (like GNSS) have longer command sequence which have an impact to the program flow. That's why the implementation has been changed to DMA transmission.
| author | Ideenmodellierer |
|---|---|
| date | Mon, 28 Oct 2024 20:34:58 +0100 |
| 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****/ |