Mercurial > public > ostc4
annotate Small_CPU/Src/uart.c @ 724:f285424f04d9
Development feature: external pressure sensor
It now possible to use ADC channel 2 as channel for external pressure data. This function may be activated by compile switch only. It is usefull for sensor verification, e.g. by using a small pressure chamber.
| author | Ideenmodellierer |
|---|---|
| date | Thu, 05 Jan 2023 18:30:06 +0100 |
| parents | fceae45b3a69 |
| children | 621265ec3d23 |
| rev | line source |
|---|---|
| 38 | 1 /** |
| 2 ****************************************************************************** | |
| 3 * @file uart.c | |
| 4 * @author heinrichs weikamp gmbh | |
| 5 * @version V0.0.1 | |
| 6 * @date 27-March-2014 | |
| 7 * @brief button control | |
| 8 * | |
| 9 @verbatim | |
| 10 ============================================================================== | |
| 11 ##### How to use ##### | |
| 12 ============================================================================== | |
| 13 @endverbatim | |
| 14 ****************************************************************************** | |
| 15 * @attention | |
| 16 * | |
| 17 * <h2><center>© COPYRIGHT(c) 2015 heinrichs weikamp</center></h2> | |
| 18 * | |
| 19 ****************************************************************************** | |
| 20 */ | |
| 21 /* Includes ------------------------------------------------------------------*/ | |
| 22 #include "uart.h" | |
| 662 | 23 #include "externalInterface.h" |
| 24 #include "data_exchange.h" | |
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25 #include <string.h> /* memset */ |
| 38 | 26 |
| 27 /* Private variables ---------------------------------------------------------*/ | |
| 28 | |
| 721 | 29 #define CHUNK_SIZE (25u) /* the DMA will handle chunk size transfers */ |
| 30 #define CHUNKS_PER_BUFFER (5u) | |
| 662 | 31 UART_HandleTypeDef huart1; |
| 32 | |
| 33 DMA_HandleTypeDef hdma_usart1_rx; | |
| 38 | 34 |
| 662 | 35 uint8_t rxBuffer[CHUNK_SIZE * CHUNKS_PER_BUFFER]; /* The complete buffer has a X * chunk size to allow fariations in buffer read time */ |
| 36 static uint8_t rxWriteIndex; /* Index of the data item which is analysed */ | |
| 37 static uint8_t rxReadIndex; /* Index at which new data is stared */ | |
| 38 static uint8_t lastCmdIndex; /* Index of last command which has not been completly received */ | |
| 39 static uint8_t dmaActive; /* Indicator if DMA receiption needs to be started */ | |
| 38 | 40 |
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41 static SSensorDataDiveO2 sensorDataDiveO2; /* intermediate storage for additional sensor data */ |
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42 |
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43 char tmpRxBuf[30]; |
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44 uint8_t tmpRxIdx = 0; |
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45 |
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46 static uartO2Status_t Comstatus_O2 = UART_O2_INIT; |
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47 |
| 662 | 48 float LED_Level = 0.0; /* Normalized LED value which may be used as indication for the health status of the sensor */ |
| 49 float LED_ZeroOffset = 0.0; | |
| 50 float pCO2 = 0.0; | |
| 38 | 51 /* Exported functions --------------------------------------------------------*/ |
| 52 | |
| 662 | 53 void MX_USART1_UART_Init(void) |
| 38 | 54 { |
| 662 | 55 /* regular init */ |
| 56 | |
| 57 huart1.Instance = USART1; | |
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58 |
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59 if(externalInterface_GetUARTProtocol() == 0x04) |
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60 { |
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61 huart1.Init.BaudRate = 19200; |
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62 Comstatus_O2 = UART_O2_INIT; |
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63 } |
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64 else |
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65 { |
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66 huart1.Init.BaudRate = 9600; |
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67 } |
| 662 | 68 huart1.Init.WordLength = UART_WORDLENGTH_8B; |
| 69 huart1.Init.StopBits = UART_STOPBITS_1; | |
| 70 huart1.Init.Parity = UART_PARITY_NONE; | |
| 71 huart1.Init.Mode = UART_MODE_TX_RX; | |
| 72 huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE; | |
| 73 huart1.Init.OverSampling = UART_OVERSAMPLING_16; | |
| 74 | |
| 75 HAL_UART_Init(&huart1); | |
| 76 | |
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77 MX_USART1_DMA_Init(); |
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78 |
| 662 | 79 rxReadIndex = 0; |
| 80 lastCmdIndex = 0; | |
| 81 rxWriteIndex = 0; | |
| 82 dmaActive = 0; | |
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83 Comstatus_O2 = UART_O2_INIT; |
| 662 | 84 } |
| 38 | 85 |
| 662 | 86 void MX_USART1_UART_DeInit(void) |
| 87 { | |
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88 HAL_DMA_Abort(&hdma_usart1_rx); |
| 662 | 89 HAL_DMA_DeInit(&hdma_usart1_rx); |
| 90 HAL_UART_DeInit(&huart1); | |
| 91 } | |
| 92 | |
| 93 void MX_USART1_DMA_Init() | |
| 94 { | |
| 95 /* DMA controller clock enable */ | |
| 96 __DMA2_CLK_ENABLE(); | |
| 97 | |
| 98 /* Peripheral DMA init*/ | |
| 99 hdma_usart1_rx.Instance = DMA2_Stream5; | |
| 100 hdma_usart1_rx.Init.Channel = DMA_CHANNEL_4; | |
| 101 hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY; //DMA_MEMORY_TO_PERIPH; | |
| 102 hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE; | |
| 103 hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE; | |
| 104 hdma_usart1_rx.Init.PeriphDataAlignment = DMA_MDATAALIGN_BYTE; | |
| 105 hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; | |
| 106 hdma_usart1_rx.Init.Mode = DMA_NORMAL; | |
| 107 hdma_usart1_rx.Init.Priority = DMA_PRIORITY_LOW; | |
| 108 hdma_usart1_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; | |
| 109 HAL_DMA_Init(&hdma_usart1_rx); | |
| 110 | |
| 111 __HAL_LINKDMA(&huart1,hdmarx,hdma_usart1_rx); | |
| 112 | |
| 113 /* DMA interrupt init */ | |
| 114 HAL_NVIC_SetPriority(DMA2_Stream5_IRQn, 0, 0); | |
| 115 HAL_NVIC_EnableIRQ(DMA2_Stream5_IRQn); | |
| 38 | 116 } |
| 117 | |
| 690 | 118 void ConvertByteToHexString(uint8_t byte, char* str) |
| 119 { | |
| 120 uint8_t worker = 0; | |
| 121 uint8_t digit = 0; | |
| 122 uint8_t digitCnt = 1; | |
| 38 | 123 |
| 690 | 124 worker = byte; |
| 125 while((worker!=0) && (digitCnt != 255)) | |
| 126 { | |
| 127 digit = worker % 16; | |
| 128 if( digit < 10) | |
| 129 { | |
| 130 digit += '0'; | |
| 131 } | |
| 132 else | |
| 133 { | |
| 134 digit += 'A' - 10; | |
| 135 } | |
| 136 str[digitCnt--]= digit; | |
| 137 worker = worker / 16; | |
| 138 } | |
| 139 } | |
| 662 | 140 |
| 690 | 141 |
| 142 #ifdef ENABLE_CO2_SUPPORT | |
| 143 void HandleUARTCO2Data(void) | |
| 38 | 144 { |
| 662 | 145 uint8_t localRX = rxReadIndex; |
| 146 uint8_t dataType = 0; | |
| 690 | 147 uint32_t dataValue = 0; |
| 662 | 148 static receiveState_t rxState = RX_Ready; |
| 149 static uint32_t lastReceiveTick = 0; | |
| 150 | |
| 151 while(localRX != rxWriteIndex) | |
| 152 { | |
| 153 lastReceiveTick = HAL_GetTick(); | |
| 154 if(rxState == RX_Ready) /* identify data content */ | |
| 155 { | |
| 156 switch(rxBuffer[localRX]) | |
| 157 { | |
| 158 case 'l': | |
| 159 case 'D': | |
| 160 case 'Z': | |
| 161 dataType = rxBuffer[localRX]; | |
| 162 rxState = RX_Data0; | |
| 163 dataValue = 0; | |
| 164 break; | |
| 165 | |
| 166 default: /* unknown or corrupted => ignore */ | |
| 167 break; | |
| 168 } | |
| 169 } | |
| 170 else if((rxState >= RX_Data0) && (rxState <= RX_Data4)) | |
| 171 { | |
| 172 if((rxBuffer[localRX] >= '0') && (rxBuffer[localRX] <= '9')) | |
| 173 { | |
| 174 dataValue = dataValue * 10 + (rxBuffer[localRX] - '0'); | |
| 175 rxState++; | |
| 176 } | |
| 177 } | |
| 178 if((rxBuffer[localRX] == ' ') || (rxBuffer[localRX] == '\n')) /* Abort data detection */ | |
| 179 { | |
| 180 if(rxState == RX_DataComplete) | |
| 181 { | |
| 182 if(externalInterface_GetCO2State() == 0) | |
| 183 { | |
| 184 externalInterface_SetCO2State(EXT_INTERFACE_33V_ON); | |
| 185 } | |
| 186 switch(dataType) | |
| 187 { | |
| 188 case 'D': externalInterface_SetCO2SignalStrength(dataValue); | |
| 189 break; | |
| 190 case 'l': LED_ZeroOffset = dataValue; | |
| 191 break; | |
| 192 case 'Z': externalInterface_SetCO2Value(dataValue); | |
| 193 break; | |
| 194 default: break; | |
| 195 } | |
| 196 } | |
| 197 if(rxState != RX_Data0) /* reset state machine because message in wrong format */ | |
| 198 { | |
| 199 rxState = RX_Ready; | |
| 200 } | |
| 201 } | |
| 202 | |
| 203 localRX++; | |
| 204 rxReadIndex++; | |
| 205 if(rxReadIndex >= CHUNK_SIZE * CHUNKS_PER_BUFFER) | |
| 206 { | |
| 207 localRX = 0; | |
| 208 rxReadIndex = 0; | |
| 209 } | |
| 210 } | |
| 211 | |
| 212 if(time_elapsed_ms(lastReceiveTick,HAL_GetTick()) > 2000) /* check for communication timeout */ | |
| 213 { | |
| 214 externalInterface_SetCO2State(0); | |
| 215 } | |
| 216 | |
| 217 if((dmaActive == 0) && (externalInterface_isEnabledPower33())) /* Should never happen in normal operation => restart in case of communication error */ | |
| 218 { | |
| 219 if(HAL_OK == HAL_UART_Receive_DMA (&huart1, &rxBuffer[rxWriteIndex], CHUNK_SIZE)) | |
| 220 { | |
| 221 dmaActive = 1; | |
| 222 } | |
| 223 } | |
| 38 | 224 } |
| 690 | 225 #endif |
| 226 | |
| 227 #ifdef ENABLE_SENTINEL_MODE | |
| 228 void HandleUARTSentinelData(void) | |
| 229 { | |
| 230 uint8_t localRX = rxReadIndex; | |
| 231 static uint8_t dataType = 0; | |
| 232 static uint32_t dataValue[3]; | |
| 233 static uint8_t dataValueIdx = 0; | |
| 234 static receiveState_t rxState = RX_Ready; | |
| 235 static uint32_t lastReceiveTick = 0; | |
| 236 static uint8_t lastAlive = 0; | |
| 237 static uint8_t curAlive = 0; | |
| 238 static uint8_t checksum = 0; | |
| 239 char checksum_str[]="00"; | |
| 240 | |
| 241 while(localRX != rxWriteIndex) | |
| 242 { | |
| 243 lastReceiveTick = HAL_GetTick(); | |
| 244 | |
| 245 switch(rxState) | |
| 246 { | |
| 247 case RX_Ready: if((rxBuffer[localRX] >= 'a') && (rxBuffer[localRX] <= 'z')) | |
| 248 { | |
| 249 rxState = RX_DetectStart; | |
| 250 curAlive = rxBuffer[localRX]; | |
| 251 checksum = 0; | |
| 252 } | |
| 253 break; | |
| 254 | |
| 255 case RX_DetectStart: checksum += rxBuffer[localRX]; | |
| 256 if(rxBuffer[localRX] == '1') | |
| 257 { | |
| 258 rxState = RX_SelectData; | |
| 259 dataType = 0xFF; | |
| 260 | |
| 261 } | |
| 262 else | |
| 263 { | |
| 264 rxState = RX_Ready; | |
| 265 } | |
| 266 break; | |
| 267 | |
| 268 case RX_SelectData: checksum += rxBuffer[localRX]; | |
| 269 switch(rxBuffer[localRX]) | |
| 270 { | |
| 271 case 'T': dataType = rxBuffer[localRX]; | |
| 272 break; | |
| 273 case '0': if(dataType != 0xff) | |
| 274 { | |
| 275 rxState = RX_Data0; | |
| 276 dataValueIdx = 0; | |
| 277 dataValue[0] = 0; | |
| 278 | |
| 279 } | |
| 280 else | |
| 281 { | |
| 282 rxState = RX_Ready; | |
| 283 } | |
| 284 break; | |
| 285 default: rxState = RX_Ready; | |
| 286 } | |
| 287 break; | |
| 288 | |
| 289 case RX_Data0: | |
| 290 case RX_Data1: | |
| 291 case RX_Data2: | |
| 292 case RX_Data4: | |
| 293 case RX_Data5: | |
| 294 case RX_Data6: | |
| 295 case RX_Data8: | |
| 296 case RX_Data9: | |
| 297 case RX_Data10: checksum += rxBuffer[localRX]; | |
| 298 if((rxBuffer[localRX] >= '0') && (rxBuffer[localRX] <= '9')) | |
| 299 { | |
| 300 dataValue[dataValueIdx] = dataValue[dataValueIdx] * 10 + (rxBuffer[localRX] - '0'); | |
| 301 rxState++; | |
| 302 } | |
| 303 else | |
| 304 { | |
| 305 rxState = RX_Ready; | |
| 306 } | |
| 307 break; | |
| 308 | |
| 309 case RX_Data3: | |
| 310 case RX_Data7: checksum += rxBuffer[localRX]; | |
| 311 if(rxBuffer[localRX] == '0') | |
| 312 { | |
| 313 rxState++; | |
| 314 dataValueIdx++; | |
| 315 dataValue[dataValueIdx] = 0; | |
| 316 } | |
| 317 else | |
| 318 { | |
| 319 rxState = RX_Ready; | |
| 320 } | |
| 321 break; | |
| 322 case RX_Data11: rxState = RX_DataComplete; | |
| 323 ConvertByteToHexString(checksum,checksum_str); | |
| 324 if(rxBuffer[localRX] == checksum_str[0]) | |
| 325 { | |
| 326 rxState = RX_DataComplete; | |
| 327 } | |
| 328 else | |
| 329 { | |
| 330 rxState = RX_Ready; | |
| 331 } | |
| 332 | |
| 333 break; | |
| 334 | |
| 335 case RX_DataComplete: if(rxBuffer[localRX] == checksum_str[1]) | |
| 336 { | |
| 337 setExternalInterfaceChannel(0,(float)(dataValue[0] / 10.0)); | |
| 338 setExternalInterfaceChannel(1,(float)(dataValue[1] / 10.0)); | |
| 339 setExternalInterfaceChannel(2,(float)(dataValue[2] / 10.0)); | |
| 340 } | |
| 341 rxState = RX_Ready; | |
| 342 break; | |
| 343 | |
| 344 | |
| 345 default: rxState = RX_Ready; | |
| 346 break; | |
| 347 | |
| 348 } | |
| 349 | |
| 350 localRX++; | |
| 351 rxReadIndex++; | |
| 352 if(rxReadIndex >= CHUNK_SIZE * CHUNKS_PER_BUFFER) | |
| 353 { | |
| 354 localRX = 0; | |
| 355 rxReadIndex = 0; | |
| 356 } | |
| 357 } | |
| 358 | |
| 359 if(time_elapsed_ms(lastReceiveTick,HAL_GetTick()) > 4000) /* check for communication timeout */ | |
| 360 { | |
| 361 if(curAlive == lastAlive) | |
| 362 { | |
| 363 setExternalInterfaceChannel(0,0.0); | |
| 364 setExternalInterfaceChannel(1,0.0); | |
| 365 setExternalInterfaceChannel(2,0.0); | |
| 366 } | |
| 367 lastAlive = curAlive; | |
| 368 } | |
| 369 | |
| 370 if((dmaActive == 0) && (externalInterface_isEnabledPower33())) /* Should never happen in normal operation => restart in case of communication error */ | |
| 371 { | |
| 372 if(HAL_OK == HAL_UART_Receive_DMA (&huart1, &rxBuffer[rxWriteIndex], CHUNK_SIZE)) | |
| 373 { | |
| 374 dmaActive = 1; | |
| 375 } | |
| 376 } | |
| 377 } | |
| 378 #endif | |
| 38 | 379 |
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380 void DigitalO2_SetupCmd(uint8_t O2State, uint8_t *cmdString, uint8_t *cmdLength) |
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381 { |
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382 switch (O2State) |
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383 { |
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384 case UART_O2_CHECK: *cmdLength = snprintf((char*)cmdString, 10, "#LOGO"); |
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385 break; |
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386 case UART_O2_REQ_INFO: *cmdLength = snprintf((char*)cmdString, 10, "#VERS"); |
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387 break; |
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388 case UART_O2_REQ_ID: *cmdLength = snprintf((char*)cmdString, 10, "#IDNR"); |
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389 break; |
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390 case UART_O2_REQ_O2: *cmdLength = snprintf((char*)cmdString, 10, "#DOXY"); |
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391 break; |
| 721 | 392 case UART_O2_REQ_RAW: *cmdLength = snprintf((char*)cmdString, 10, "#DRAW"); |
| 393 break; | |
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394 default: *cmdLength = 0; |
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395 break; |
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396 } |
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397 if(*cmdLength != 0) |
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398 { |
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399 cmdString[*cmdLength] = 0x0D; |
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400 *cmdLength = *cmdLength + 1; |
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401 } |
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402 } |
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403 |
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404 void StringToInt(char *pstr, uint32_t *puInt32) |
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405 { |
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406 uint8_t index = 0; |
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407 uint32_t result = 0; |
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408 while((pstr[index] >= '0') && (pstr[index] <= '9')) |
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409 { |
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410 result *=10; |
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411 result += pstr[index] - '0'; |
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412 index++; |
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413 } |
|
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414 *puInt32 = result; |
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415 } |
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416 |
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417 void StringToUInt64(char *pstr, uint64_t *puint64) |
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418 { |
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419 uint8_t index = 0; |
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420 uint64_t result = 0; |
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421 while((pstr[index] >= '0') && (pstr[index] <= '9')) |
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422 { |
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423 result *=10; |
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424 result += pstr[index] - '0'; |
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425 index++; |
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426 } |
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427 *puint64 = result; |
|
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428 } |
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429 |
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430 void HandleUARTDigitalO2(void) |
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431 { |
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432 static uint32_t lastO2ReqTick = 0; |
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433 |
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434 static uartO2RxState_t rxState = O2RX_IDLE; |
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435 static uint32_t lastReceiveTick = 0; |
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436 static uint8_t lastAlive = 0; |
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437 static uint8_t curAlive = 0; |
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438 |
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439 static uint8_t cmdLength = 0; |
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440 static uint8_t cmdString[10]; |
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441 static uint8_t cmdReadIndex = 0; |
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442 |
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443 uint32_t tmpO2 = 0; |
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444 uint32_t tmpData = 0; |
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445 uint8_t localRX = rxReadIndex; |
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446 uint32_t tick = HAL_GetTick(); |
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447 |
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448 |
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449 if(Comstatus_O2 == UART_O2_INIT) |
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450 { |
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451 memset((char*)&rxBuffer[rxWriteIndex],(int)0,CHUNK_SIZE); |
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452 memset((char*) &sensorDataDiveO2, 0, sizeof(sensorDataDiveO2)); |
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453 externalInterface_SetSensorData(0,(uint8_t*)&sensorDataDiveO2); |
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454 |
|
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455 lastAlive = 0; |
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456 curAlive = 0; |
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457 |
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458 Comstatus_O2 = UART_O2_CHECK; |
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459 DigitalO2_SetupCmd(Comstatus_O2,cmdString,&cmdLength); |
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460 HAL_UART_Transmit(&huart1,cmdString,cmdLength,10); |
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461 |
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462 rxState = O2RX_CONFIRM; |
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463 cmdReadIndex = 0; |
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464 lastO2ReqTick = tick; |
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465 |
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466 if(HAL_OK == HAL_UART_Receive_DMA (&huart1, &rxBuffer[rxWriteIndex], CHUNK_SIZE)) |
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467 { |
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468 dmaActive = 1; |
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469 } |
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470 } |
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471 if(time_elapsed_ms(lastO2ReqTick,tick) > 1000) /* repeat request once per second */ |
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472 { |
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473 lastO2ReqTick = tick; |
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474 if(Comstatus_O2 == UART_O2_IDLE) /* cyclic request of o2 value */ |
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475 { |
| 721 | 476 Comstatus_O2 = UART_O2_REQ_RAW; |
|
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477 rxState = O2RX_CONFIRM; |
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478 } |
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479 DigitalO2_SetupCmd(Comstatus_O2,cmdString,&cmdLength); |
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480 |
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481 HAL_UART_Transmit(&huart1,cmdString,cmdLength,10); |
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482 } |
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483 |
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484 while((rxBuffer[localRX]!=0)) |
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485 { |
|
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486 |
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487 lastReceiveTick = tick; |
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488 switch(rxState) |
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489 { |
|
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490 case O2RX_CONFIRM: if(rxBuffer[localRX] == '#') |
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491 { |
|
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492 cmdReadIndex = 0; |
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493 } |
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494 if(rxBuffer[localRX] == cmdString[cmdReadIndex]) |
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495 { |
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496 cmdReadIndex++; |
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497 if(cmdReadIndex == cmdLength - 1) |
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|
498 { |
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499 tmpRxIdx = 0; |
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500 memset((char*) tmpRxBuf, 0, sizeof(tmpRxBuf)); |
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501 switch (Comstatus_O2) |
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|
502 { |
|
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503 case UART_O2_CHECK: Comstatus_O2 = UART_O2_REQ_ID; |
|
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504 rxState = O2RX_CONFIRM; |
|
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505 DigitalO2_SetupCmd(Comstatus_O2,cmdString,&cmdLength); |
|
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506 HAL_UART_Transmit(&huart1,cmdString,cmdLength,10); |
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507 break; |
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508 case UART_O2_REQ_ID: rxState = O2RX_GETNR; |
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509 break; |
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510 case UART_O2_REQ_INFO: rxState = O2RX_GETTYPE; |
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511 break; |
| 721 | 512 case UART_O2_REQ_RAW: |
|
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513 case UART_O2_REQ_O2: rxState = O2RX_GETO2; |
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514 break; |
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515 default: Comstatus_O2 = UART_O2_IDLE; |
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516 rxState = O2RX_IDLE; |
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|
517 break; |
|
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|
518 } |
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|
519 } |
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|
520 } |
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|
521 break; |
|
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|
522 |
|
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|
523 case O2RX_GETSTATUS: |
|
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|
524 case O2RX_GETTEMP: |
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|
525 case O2RX_GETTYPE: |
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|
526 case O2RX_GETVERSION: |
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|
527 case O2RX_GETCHANNEL: |
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|
528 case O2RX_GETSUBSENSORS: |
|
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529 case O2RX_GETO2: |
| 721 | 530 case O2RX_GETNR: |
| 531 case O2RX_GETDPHI: | |
| 532 case O2RX_INTENSITY: | |
| 533 case O2RX_AMBIENTLIGHT: | |
| 534 case O2RX_PRESSURE: | |
| 535 case O2RX_HUMIDITY: | |
| 536 if(rxBuffer[localRX] != 0x0D) | |
|
704
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|
537 { |
|
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|
538 if(rxBuffer[localRX] != ' ') |
|
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|
539 { |
|
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|
540 tmpRxBuf[tmpRxIdx++] = rxBuffer[localRX]; |
|
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|
541 } |
|
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|
542 else |
|
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diff
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|
543 { |
|
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|
544 if(tmpRxIdx != 0) |
|
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545 { |
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546 switch(rxState) |
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547 { |
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548 case O2RX_GETCHANNEL: StringToInt(tmpRxBuf,&tmpData); |
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549 rxState = O2RX_GETVERSION; |
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550 break; |
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551 case O2RX_GETVERSION: StringToInt(tmpRxBuf,&tmpData); |
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552 rxState = O2RX_GETSUBSENSORS; |
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553 break; |
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554 case O2RX_GETTYPE: StringToInt(tmpRxBuf,&tmpData); |
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555 rxState = O2RX_GETCHANNEL; |
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556 break; |
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557 |
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558 case O2RX_GETO2: StringToInt(tmpRxBuf,&tmpO2); |
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559 setExternalInterfaceChannel(0,(float)(tmpO2 / 10000.0)); |
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560 rxState = O2RX_GETTEMP; |
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561 break; |
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562 case O2RX_GETTEMP: StringToInt(tmpRxBuf,(uint32_t*)&sensorDataDiveO2.temperature); |
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563 rxState = O2RX_GETSTATUS; |
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564 break; |
| 721 | 565 case O2RX_GETSTATUS: StringToInt(tmpRxBuf,&sensorDataDiveO2.status); /* raw data cycle */ |
| 566 rxState = O2RX_GETDPHI; | |
| 567 break; | |
| 568 case O2RX_GETDPHI: /* ignored to save memory and most likly irrelevant for diver */ | |
| 569 rxState = O2RX_INTENSITY; | |
| 570 break; | |
| 571 case O2RX_INTENSITY: StringToInt(tmpRxBuf,(uint32_t*)&sensorDataDiveO2.intensity); /* raw data cycle */ | |
| 572 rxState = O2RX_AMBIENTLIGHT; | |
| 573 break; | |
| 574 case O2RX_AMBIENTLIGHT: StringToInt(tmpRxBuf,(uint32_t*)&sensorDataDiveO2.ambient); /* raw data cycle */ | |
| 575 rxState = O2RX_PRESSURE; | |
| 576 break; | |
| 577 case O2RX_PRESSURE: StringToInt(tmpRxBuf,(uint32_t*)&sensorDataDiveO2.pressure); /* raw data cycle */ | |
| 578 rxState = O2RX_HUMIDITY; | |
| 579 break; | |
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580 default: |
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581 break; |
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582 } |
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583 memset((char*) tmpRxBuf, 0, tmpRxIdx); |
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584 tmpRxIdx = 0; |
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585 } |
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586 } |
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587 } |
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588 else |
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589 { |
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590 switch (rxState) |
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591 { |
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592 case O2RX_GETSTATUS: StringToInt(tmpRxBuf,&sensorDataDiveO2.status); |
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593 externalInterface_SetSensorData(1,(uint8_t*)&sensorDataDiveO2); |
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594 Comstatus_O2 = UART_O2_IDLE; |
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595 rxState = O2RX_IDLE; |
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596 break; |
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597 case O2RX_GETSUBSENSORS: StringToInt(tmpRxBuf,&tmpData); |
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598 Comstatus_O2 = UART_O2_IDLE; |
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599 rxState = O2RX_IDLE; |
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600 break; |
| 721 | 601 case O2RX_HUMIDITY: StringToInt(tmpRxBuf,(uint32_t*)&sensorDataDiveO2.humidity); /* raw data cycle */ |
| 602 externalInterface_SetSensorData(1,(uint8_t*)&sensorDataDiveO2); | |
| 603 Comstatus_O2 = UART_O2_IDLE; | |
| 604 rxState = O2RX_IDLE; | |
| 605 break; | |
|
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606 case O2RX_GETNR: StringToUInt64((char*)tmpRxBuf,&sensorDataDiveO2.sensorId); |
|
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607 /* no break */ |
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608 default: Comstatus_O2 = UART_O2_IDLE; |
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609 rxState = O2RX_IDLE; |
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610 break; |
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611 } |
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612 } |
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613 break; |
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614 default: rxState = O2RX_IDLE; |
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615 break; |
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616 |
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617 } |
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618 |
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619 localRX++; |
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620 rxReadIndex++; |
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621 if(rxReadIndex >= CHUNK_SIZE * CHUNKS_PER_BUFFER) |
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622 { |
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623 localRX = 0; |
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624 rxReadIndex = 0; |
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625 } |
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626 } |
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627 |
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628 if(time_elapsed_ms(lastReceiveTick,HAL_GetTick()) > 4000) /* check for communication timeout */ |
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629 { |
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630 if(curAlive == lastAlive) |
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631 { |
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632 setExternalInterfaceChannel(0,0.0); |
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633 setExternalInterfaceChannel(1,0.0); |
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634 setExternalInterfaceChannel(2,0.0); |
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635 } |
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636 lastAlive = curAlive; |
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637 } |
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638 |
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639 if((dmaActive == 0) && (externalInterface_isEnabledPower33())) /* Should never happen in normal operation => restart in case of communication error */ |
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640 { |
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641 if(HAL_OK == HAL_UART_Receive_DMA (&huart1, &rxBuffer[rxWriteIndex], CHUNK_SIZE)) |
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642 { |
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643 dmaActive = 1; |
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644 } |
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645 } |
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646 } |
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647 |
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648 |
| 662 | 649 void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) |
| 38 | 650 { |
| 662 | 651 if(huart == &huart1) |
| 652 { | |
| 653 dmaActive = 0; | |
| 654 rxWriteIndex+=CHUNK_SIZE; | |
| 655 if(rxWriteIndex >= CHUNK_SIZE * CHUNKS_PER_BUFFER) | |
| 656 { | |
| 657 rxWriteIndex = 0; | |
| 658 } | |
| 659 if((rxWriteIndex / CHUNK_SIZE) != (rxReadIndex / CHUNK_SIZE)) /* start next transfer if we did not catch up with read index */ | |
| 660 { | |
| 661 if(externalInterface_isEnabledPower33()) | |
| 662 { | |
|
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663 memset((char*)&rxBuffer[rxWriteIndex],(int)0,CHUNK_SIZE); |
| 662 | 664 if(HAL_OK == HAL_UART_Receive_DMA (&huart1, &rxBuffer[rxWriteIndex], CHUNK_SIZE)) |
| 665 { | |
| 666 dmaActive = 1; | |
| 667 } | |
| 668 } | |
| 669 } | |
| 670 } | |
| 38 | 671 } |
| 672 | |
| 673 | |
| 662 | 674 |
| 675 | |
| 676 | |
| 677 | |
| 678 | |
| 679 | |
| 38 | 680 /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/ |