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comparison Small_CPU/Src/spi.c @ 136:6ae8ba5683d6 FlipDisplay

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Introduces abort of communication in case of a out of sync DMA transfer
author Ideenmodellierer
date Tue, 19 Feb 2019 18:20:45 +0100
parents 4b355396557a
children 466c8d9c5e43
comparison
equal deleted inserted replaced
135:5df4f1a315cb 136:6ae8ba5683d6
268 HAL_GPIO_DeInit(GPIOC, GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12); 268 HAL_GPIO_DeInit(GPIOC, GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12);
269 } 269 }
270 } 270 }
271 271
272 void SPI_synchronize_with_Master(void) { 272 void SPI_synchronize_with_Master(void) {
273 // GPIO_InitTypeDef GPIO_InitStruct; 273 GPIO_InitTypeDef GPIO_InitStruct;
274 // 274 //
275 // __GPIOA_CLK_ENABLE(); 275 #if 0
276 // /**SPI1 GPIO Configuration 276 __GPIOA_CLK_ENABLE();
277 // PA5 ------> SPI1_SCK 277 /**SPI1 GPIO Configuration
278 // */ 278 PA5 ------> SPI1_SCK
279 // GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5; 279 */
280 // GPIO_InitStruct.Mode = GPIO_MODE_INPUT; 280 GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5;
281 // GPIO_InitStruct.Pull = GPIO_PULLUP; 281 GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
282 // GPIO_InitStruct.Speed = GPIO_SPEED_LOW; 282 GPIO_InitStruct.Pull = GPIO_PULLUP;
283 // HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); 283 GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
284 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
284 // 285 //
285 // HAL_Delay(10); 286 HAL_Delay(10);
286 // while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_4) == 0); 287 while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_4) == 0);
287 // HAL_Delay(10); 288 HAL_Delay(10);
288 // while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_5) == 1); 289 while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_5) == 1);
289 // HAL_Delay(20); 290 HAL_Delay(20);
291 #endif
290 } 292 }
291 293
292 void SPI_Start_single_TxRx_with_Master(void) { 294 void SPI_Start_single_TxRx_with_Master(void) {
293 uint8_t * pOutput; 295 uint8_t * pOutput;
296 HAL_StatusTypeDef retval;
294 297
295 if (global.dataSendToSlave.getDeviceDataNow) { 298 if (global.dataSendToSlave.getDeviceDataNow) {
296 global.dataSendToSlave.getDeviceDataNow = 0; 299 global.dataSendToSlave.getDeviceDataNow = 0;
297 pOutput = (uint8_t*) &(global.deviceDataSendToMaster); 300 pOutput = (uint8_t*) &(global.deviceDataSendToMaster);
298 } else { 301 } else {
299 pOutput = (uint8_t*) &(global.dataSendToMaster); 302 pOutput = (uint8_t*) &(global.dataSendToMaster);
300 } 303 }
301 304 retval = HAL_SPI_TransmitReceive_DMA(&hspi1, pOutput,(uint8_t*) &(global.dataSendToSlave), EXCHANGE_BUFFERSIZE);
302 if (HAL_SPI_TransmitReceive_DMA(&hspi1, pOutput,(uint8_t*) &(global.dataSendToSlave), EXCHANGE_BUFFERSIZE)!= HAL_OK) { 305 if ( retval!= HAL_OK) {
303 // Transfer error in transmission process
304 SPI_Error_Handler(); 306 SPI_Error_Handler();
305 } 307 }
306 } 308 }
307 309
308 void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi) { 310 void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi) {
309 /* restart SPI */ 311 /* restart SPI */
310 if (hspi == &hspi1) { 312 if (hspi == &hspi1)
311 313 {
312 global.check_sync_not_running = 0; 314 global.check_sync_not_running = 0;
313 /* stop data exchange? */ 315 /* stop data exchange? */
314 if (global.mode == MODE_SHUTDOWN) { 316 if (global.mode == MODE_SHUTDOWN) {
315 global.mode = MODE_SLEEP; 317 global.mode = MODE_SLEEP;
316 global.dataSendToSlavePending = 0; 318 global.dataSendToSlavePending = 0;
324 // GPIO_new_DEBUG_HIGH(); //For debug. 326 // GPIO_new_DEBUG_HIGH(); //For debug.
325 global.dataSendToSlaveIsValid = 1; 327 global.dataSendToSlaveIsValid = 1;
326 global.dataSendToSlaveIsNotValidCount = 0; 328 global.dataSendToSlaveIsNotValidCount = 0;
327 } else { 329 } else {
328 // GPIO_new_DEBUG_LOW(); //For debug. 330 // GPIO_new_DEBUG_LOW(); //For debug.
329 global.dataSendToSlaveIsValid = 0; 331 global.dataSendToSlaveIsValid = 0;
330 global.dataSendToSlaveIsNotValidCount++; 332 global.dataSendToSlaveIsNotValidCount++;
331 MX_SPI_DeInit(); 333 HAL_SPI_Abort_IT(&hspi1);
332 HAL_Delay(30); 334 global.dataSendToSlaveIsNotValidCount = 1;
333 MX_DMA_Init(); 335 }
334 MX_SPI1_Init(); 336 }
335 }
336 global.dataSendToMaster.power_on_reset = 0; 337 global.dataSendToMaster.power_on_reset = 0;
337 global.deviceDataSendToMaster.power_on_reset = 0; 338 global.deviceDataSendToMaster.power_on_reset = 0;
338 339
339 //TODO:REMOVE 340 //TODO:REMOVE
340 // if ( !global.dataSendToSlaveStopEval ) { 341 // if ( !global.dataSendToSlaveStopEval ) {
341 // scheduleSpecial_Evaluate_DataSendToSlave(); 342 // scheduleSpecial_Evaluate_DataSendToSlave();
342 // } 343 // }
343 scheduleSpecial_Evaluate_DataSendToSlave(); 344 scheduleSpecial_Evaluate_DataSendToSlave();
344 SPI_Start_single_TxRx_with_Master(); //Send data always. 345
345 } 346 SPI_Start_single_TxRx_with_Master(); //Send data always.
346 } 347 }
348
349
347 350
348 static uint8_t SPI_check_header_and_footer_ok(void) { 351 static uint8_t SPI_check_header_and_footer_ok(void) {
349 if (global.dataSendToSlave.header.checkCode[0] != 0xBB) 352 if (global.dataSendToSlave.header.checkCode[0] != 0xBB)
350 return 0; 353 return 0;
351 if (global.dataSendToSlave.header.checkCode[1] != 0x01) 354 if (global.dataSendToSlave.header.checkCode[1] != 0x01)