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comparison Small_CPU/Src/spi.c @ 38:5f11787b4f42

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include in ostc4 repository
author heinrichsweikamp
date Sat, 28 Apr 2018 11:52:34 +0200
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37:ccc45c0e1ea2 38:5f11787b4f42
1 /**
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>&copy; COPYRIGHT(c) 2014 heinrichs weikamp</center></h2>
18 *
19 ******************************************************************************
20 */
21
22 /* Includes ------------------------------------------------------------------*/
23 #include "spi.h"
24 //#include "gpio.h"
25
26 /* USER CODE BEGIN 0 */
27 #include "scheduler.h"
28
29 extern void GPIO_new_DEBUG_LOW(void);
30 extern void GPIO_new_DEBUG_HIGH(void);
31
32
33 uint8_t data_error = 0;
34 uint32_t data_error_time = 0;
35
36 static void SPI_Error_Handler(void);
37
38 /* USER CODE END 0 */
39
40 static uint8_t SPI_check_header_and_footer_ok(void);
41
42 SPI_HandleTypeDef hspi1;
43 SPI_HandleTypeDef hspi3;
44
45 DMA_HandleTypeDef hdma_tx;
46 DMA_HandleTypeDef hdma_rx;
47
48 // SPI3 init function
49 void MX_SPI3_Init(void)
50 {
51 hspi3.Instance = SPI3;
52 hspi3.Init.Mode = SPI_MODE_MASTER;
53 hspi3.Init.Direction = SPI_DIRECTION_2LINES;
54 hspi3.Init.DataSize = SPI_DATASIZE_8BIT;
55 hspi3.Init.CLKPolarity = SPI_POLARITY_HIGH;
56 hspi3.Init.CLKPhase = SPI_PHASE_1EDGE;
57 hspi3.Init.NSS = SPI_NSS_SOFT;
58 hspi3.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;
59 hspi3.Init.FirstBit = SPI_FIRSTBIT_MSB;
60 hspi3.Init.TIMode = SPI_TIMODE_DISABLED;
61 hspi3.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
62 hspi3.Init.CRCPolynomial = 7;
63 HAL_SPI_Init(&hspi3);
64 }
65
66 void MX_SPI3_DeInit(void)
67 {
68 HAL_SPI_DeInit(&hspi3);
69 }
70
71 uint8_t SPI3_ButtonAdjust(uint8_t *arrayInput, uint8_t *arrayOutput)
72 {
73 HAL_StatusTypeDef status;
74 uint8_t answer[10];
75 uint8_t rework[10];
76 uint8_t wait = 0;
77
78 rework[0] = 0xFF;
79 for(int i = 0; i < 3; i++)
80 {
81 // limiter
82 if(arrayInput[i] == 0xFF)
83 arrayInput[i] = 0xFE;
84 if(arrayInput[i] >= 15)
85 {
86 // copy - auslöse-schwelle
87 rework[i+1] = arrayInput[i];
88 // wieder-scharf-schalte-schwelle
89 rework[i+3+1] = arrayInput[i] - 10;
90 }
91 else
92 if(arrayInput[i] >= 10)
93 {
94 // copy - auslöse-schwelle
95 rework[i+1] = arrayInput[i];
96 // wieder-scharf-schalte-schwelle
97 rework[i+3+1] = arrayInput[i] - 5;
98 }
99 else
100 {
101 // copy - auslöse-schwelle
102 rework[i+1] = 7;
103 // wieder-scharf-schalte-schwelle
104 rework[i+3+1] = 6;
105 }
106 }
107
108 status = HAL_OK; /* = 0 */
109 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9,GPIO_PIN_SET);
110 for(int i=0;i<7;i++)
111 {
112 for(int iiii = 0; iiii < 400; iiii++)
113 wait++;
114 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9,GPIO_PIN_RESET);
115 for(int iiii = 0; iiii < 400; iiii++)
116 wait++;
117 status += HAL_SPI_TransmitReceive(&hspi3, &rework[i], &answer[i], 1,20);
118 for(int iiii = 0; iiii < 400; iiii++)
119 wait++;
120 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9,GPIO_PIN_SET);
121 }
122
123 if(status == HAL_OK)
124 {
125 for(int i = 0; i < 3; i++)
126 {
127 arrayOutput[i] = answer[i+2]; // first not, return of 0xFF not
128 }
129 return 1;
130 }
131 else
132
133 return 0;
134 }
135
136
137 // SPI5 init function
138 void MX_SPI1_Init(void)
139 {
140 hspi1.Instance = SPI1;
141 hspi1.Init.Mode = SPI_MODE_SLAVE;
142 hspi1.Init.Direction = SPI_DIRECTION_2LINES;
143 hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
144 hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
145 hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
146 hspi1.Init.NSS = SPI_NSS_HARD_INPUT;//SPI_NSS_SOFT;
147 hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_128;
148 hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
149 hspi1.Init.TIMode = SPI_TIMODE_DISABLED;
150 hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;//_DISABLED; _ENABLED;
151 hspi1.Init.CRCPolynomial = 7;
152 HAL_SPI_Init(&hspi1);
153 }
154
155 void MX_SPI_DeInit(void)
156 {
157 HAL_SPI_DeInit(&hspi1);
158 }
159
160
161 void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
162 {
163
164 GPIO_InitTypeDef GPIO_InitStruct;
165
166 if(hspi->Instance==SPI1)
167 {
168 // Peripheral clock enable
169 __SPI1_CLK_ENABLE();
170 __GPIOA_CLK_ENABLE();
171 //SPI1 GPIO Configuration
172 //PA4 ------> SPI1_CS
173 //PA5 ------> SPI1_SCK
174 //PA6 ------> SPI1_MISO
175 //PA7 ------> SPI1_MOSI
176
177 GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
178 // GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
179 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
180 GPIO_InitStruct.Pull = GPIO_PULLUP;
181 GPIO_InitStruct.Speed = GPIO_SPEED_MEDIUM;
182 GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
183 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
184
185 //##-3- Configure the DMA streams ##########################################
186 // Configure the DMA handler for Transmission process
187 hdma_tx.Instance = DMA2_Stream3;
188 hdma_tx.Init.Channel = DMA_CHANNEL_3;
189 hdma_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
190 hdma_tx.Init.PeriphInc = DMA_PINC_DISABLE;
191 hdma_tx.Init.MemInc = DMA_MINC_ENABLE;
192 hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
193 hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
194 hdma_tx.Init.Mode = DMA_NORMAL;
195 hdma_tx.Init.Priority = DMA_PRIORITY_LOW;
196 hdma_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
197 hdma_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
198 hdma_tx.Init.MemBurst = DMA_MBURST_INC4;
199 hdma_tx.Init.PeriphBurst = DMA_PBURST_INC4;
200
201 HAL_DMA_Init(&hdma_tx);
202
203 // Associate the initialized DMA handle to the the SPI handle
204 __HAL_LINKDMA(hspi, hdmatx, hdma_tx);
205
206 // Configure the DMA handler for Transmission process
207 hdma_rx.Instance = DMA2_Stream0;
208 hdma_rx.Init.Channel = DMA_CHANNEL_3;
209 hdma_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
210 hdma_rx.Init.PeriphInc = DMA_PINC_DISABLE;
211 hdma_rx.Init.MemInc = DMA_MINC_ENABLE;
212 hdma_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
213 hdma_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
214 hdma_rx.Init.Mode = DMA_NORMAL;
215 hdma_rx.Init.Priority = DMA_PRIORITY_HIGH;
216 hdma_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
217 hdma_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
218 hdma_rx.Init.MemBurst = DMA_MBURST_INC4;
219 hdma_rx.Init.PeriphBurst = DMA_PBURST_INC4;
220
221 HAL_DMA_Init(&hdma_rx);
222
223 // Associate the initialized DMA handle to the the SPI handle
224 __HAL_LINKDMA(hspi, hdmarx, hdma_rx);
225
226 //##-4- Configure the NVIC for DMA #########################################
227 //NVIC configuration for DMA transfer complete interrupt (SPI3_RX)
228 HAL_NVIC_SetPriority(DMA2_Stream0_IRQn, 1, 0);
229 HAL_NVIC_EnableIRQ(DMA2_Stream0_IRQn);
230
231 // NVIC configuration for DMA transfer complete interrupt (SPI1_TX)
232 HAL_NVIC_SetPriority(DMA2_Stream3_IRQn, 1, 1);
233 HAL_NVIC_EnableIRQ(DMA2_Stream3_IRQn);
234 }
235 else
236 if(hspi->Instance==SPI3)
237 {
238 __GPIOC_CLK_ENABLE();
239 __SPI3_CLK_ENABLE();
240
241 //SPI1 GPIO Configuration
242 //PC10 ------> SPI3_SCK
243 //PC11 ------> SPI3_MISO
244 //PC12 ------> SPI3_MOSI
245 //PA15 ------> SPI3_NSS (official)
246 //PC9 ------> SPI3_NSS (hw)
247
248 GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12;
249 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
250 GPIO_InitStruct.Pull = GPIO_PULLUP;
251 GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
252 GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
253 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
254
255 GPIO_InitStruct.Pin = GPIO_PIN_9;
256 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
257 GPIO_InitStruct.Pull = GPIO_PULLUP;
258 GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
259 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
260
261 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9,GPIO_PIN_SET);
262 }
263 }
264
265 void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi){
266 if(hspi->Instance==SPI1)
267 {
268 __SPI1_FORCE_RESET();
269 __SPI1_RELEASE_RESET();
270
271 //SPI1 GPIO Configuration
272 //PA5 ------> SPI1_SCK
273 //PA6 ------> SPI1_MISO
274 //PA7 ------> SPI1_MOSI
275
276 HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7);
277
278 HAL_DMA_DeInit(&hdma_tx);
279 HAL_DMA_DeInit(&hdma_rx);
280
281 HAL_NVIC_DisableIRQ(DMA2_Stream3_IRQn);
282 HAL_NVIC_DisableIRQ(DMA2_Stream0_IRQn);
283 }
284 else
285 if(hspi->Instance==SPI3)
286 {
287 __SPI3_FORCE_RESET();
288 __SPI3_RELEASE_RESET();
289
290 //SPI1 GPIO Configuration
291 //PC10 ------> SPI3_SCK
292 //PC11 ------> SPI3_MISO
293 //PC12 ------> SPI3_MOSI
294 //PA15 ------> SPI3_NSS (official)
295 //PC9 ------> SPI3_NSS (hw)
296 HAL_GPIO_DeInit(GPIOC, GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12);
297 }
298 }
299
300 void SPI_synchronize_with_Master(void)
301 {
302 GPIO_InitTypeDef GPIO_InitStruct;
303
304 __GPIOA_CLK_ENABLE();
305 /**SPI1 GPIO Configuration
306 PA5 ------> SPI1_SCK
307 */
308 GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5;
309 GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
310 GPIO_InitStruct.Pull = GPIO_PULLUP;
311 GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
312 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
313
314 HAL_Delay(10);
315 while(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_4) == 0);
316 HAL_Delay(10);
317 while(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_5) == 1);
318 HAL_Delay(50);
319 }
320
321
322 void SPI_Start_single_TxRx_with_Master(void)
323 {
324 uint8_t * pOutput;
325
326 if(global.dataSendToSlave.getDeviceDataNow)
327 {
328 global.dataSendToSlave.getDeviceDataNow = 0;
329 pOutput = (uint8_t*)&(global.deviceDataSendToMaster);
330 }
331 else
332 {
333 pOutput = (uint8_t*)&(global.dataSendToMaster);
334 }
335
336 if(HAL_SPI_TransmitReceive_DMA(&hspi1,pOutput, (uint8_t*)&(global.dataSendToSlave), EXCHANGE_BUFFERSIZE+1) != HAL_OK)
337 {
338 // Transfer error in transmission process
339 SPI_Error_Handler();
340 }
341 }
342
343
344 void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi)
345 {
346 global.check_sync_not_running = 0;
347 /* stop data exchange? */
348 if(global.mode == MODE_SHUTDOWN)
349 {
350 global.mode = MODE_SLEEP;
351 global.dataSendToSlavePending = 0;
352 global.dataSendToSlaveIsValid = 1;
353 global.dataSendToSlaveIsNotValidCount = 0;
354 return;
355 }
356
357 /* data consistent? */
358 if(SPI_check_header_and_footer_ok())
359 {
360 GPIO_new_DEBUG_HIGH();
361 global.dataSendToSlaveIsValid = 1;
362 global.dataSendToSlaveIsNotValidCount = 0;
363 }
364 else
365 {
366 GPIO_new_DEBUG_LOW();
367 global.dataSendToSlaveIsValid = 0;
368 global.dataSendToSlaveIsNotValidCount++;
369 }
370 global.dataSendToMaster.power_on_reset = 0;
371 global.deviceDataSendToMaster.power_on_reset = 0;
372 /* no i2c or other time critical threads? */
373 if(global.dataSendToSlaveIsValid)
374 {
375 if(!global.dataSendToSlaveStopEval)
376 {
377 scheduleSpecial_Evaluate_DataSendToSlave();
378 }
379 else
380 {
381 global.dataSendToSlavePending = 1;
382 }
383 }
384 else
385 {
386 global.dataSendToSlavePending = 0;
387 }
388
389 /* restart SPI */
390 if(hspi == &hspi1)
391 {
392 if(global.dataSendToSlaveIsValid)
393 SPI_Start_single_TxRx_with_Master();
394 }
395 }
396
397
398 static uint8_t SPI_check_header_and_footer_ok(void)
399 {
400 if(global.dataSendToSlave.header.checkCode[0] != 0xBB)
401 return 0;
402 if(global.dataSendToSlave.header.checkCode[1] != 0x01)
403 return 0;
404 if(global.dataSendToSlave.header.checkCode[2] != 0x01)
405 return 0;
406 if(global.dataSendToSlave.header.checkCode[3] != 0xBB)
407 return 0;
408 if(global.dataSendToSlave.footer.checkCode[0] != 0xF4)
409 return 0;
410 if(global.dataSendToSlave.footer.checkCode[1] != 0xF3)
411 return 0;
412 if(global.dataSendToSlave.footer.checkCode[2] != 0xF2)
413 return 0;
414 if(global.dataSendToSlave.footer.checkCode[3] != 0xF1)
415 return 0;
416
417 return 1;
418 }
419
420 static void SPI_Error_Handler(void)
421 {
422 while(1)
423 {
424 }
425 }
426
427 /**
428 * @}
429 */
430
431 /**
432 * @}
433 */
434
435 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/