Mercurial > public > ostc4
annotate Small_CPU/Src/uart.c @ 893:1b05a84f6d0f Evo_2_23 tip
Reenabled fast communication:
The communication may be improved with regard to speed by increasing the baud rate between bluetooth module and CPU. This may now be activated using a compile switch.
| author | Ideenmodellierer |
|---|---|
| date | Wed, 11 Sep 2024 22:32:05 +0200 |
| parents | 651d21777b61 |
| children |
| 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" | |
| 794 | 23 #include "uartProtocol_O2.h" |
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24 #include "uartProtocol_Co2.h" |
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25 #include "uartProtocol_Sentinel.h" |
| 662 | 26 #include "externalInterface.h" |
| 27 #include "data_exchange.h" | |
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28 #include <string.h> /* memset */ |
| 38 | 29 |
| 889 | 30 |
| 38 | 31 /* Private variables ---------------------------------------------------------*/ |
| 32 | |
| 794 | 33 |
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34 |
| 781 | 35 #define CHUNK_SIZE (25u) /* the DMA will handle chunk size transfers */ |
| 36 #define CHUNKS_PER_BUFFER (5u) | |
| 794 | 37 |
| 889 | 38 |
| 662 | 39 |
| 889 | 40 DMA_HandleTypeDef hdma_usart1_rx, hdma_usart6_rx, hdma_usart6_tx; |
| 38 | 41 |
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42 uint8_t rxBuffer[CHUNK_SIZE * CHUNKS_PER_BUFFER]; /* The complete buffer has a X * chunk size to allow variations in buffer read time */ |
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43 uint8_t rxBufferUart6[CHUNK_SIZE * CHUNKS_PER_BUFFER]; /* The complete buffer has a X * chunk size to allow variations in buffer read time */ |
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44 uint8_t txBufferUart6[CHUNK_SIZE * CHUNKS_PER_BUFFER]; /* The complete buffer has a X * chunk size to allow variations in buffer read time */ |
| 889 | 45 |
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46 static uint8_t rxWriteIndex; /* Index of the data item which is analysed */ |
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47 static uint8_t rxReadIndex; /* Index at which new data is stared */ |
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48 static uint8_t lastCmdIndex; /* Index of last command which has not been completely received */ |
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49 static uint8_t dmaActive; /* Indicator if DMA reception needs to be started */ |
| 794 | 50 |
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51 |
| 889 | 52 |
| 53 | |
| 38 | 54 /* Exported functions --------------------------------------------------------*/ |
| 55 | |
| 794 | 56 |
| 662 | 57 void MX_USART1_UART_Init(void) |
| 38 | 58 { |
| 662 | 59 /* regular init */ |
| 60 | |
| 61 huart1.Instance = USART1; | |
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62 huart1.Init.BaudRate = 19200; |
| 662 | 63 huart1.Init.WordLength = UART_WORDLENGTH_8B; |
| 64 huart1.Init.StopBits = UART_STOPBITS_1; | |
| 65 huart1.Init.Parity = UART_PARITY_NONE; | |
| 66 huart1.Init.Mode = UART_MODE_TX_RX; | |
| 67 huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE; | |
| 68 huart1.Init.OverSampling = UART_OVERSAMPLING_16; | |
| 69 | |
| 70 HAL_UART_Init(&huart1); | |
| 71 | |
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72 MX_USART1_DMA_Init(); |
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73 |
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74 memset(rxBuffer,BUFFER_NODATA,sizeof(rxBuffer)); |
| 662 | 75 rxReadIndex = 0; |
| 76 lastCmdIndex = 0; | |
| 77 rxWriteIndex = 0; | |
| 78 dmaActive = 0; | |
| 79 } | |
| 38 | 80 |
| 889 | 81 |
| 82 | |
| 662 | 83 void MX_USART1_UART_DeInit(void) |
| 84 { | |
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85 HAL_DMA_Abort(&hdma_usart1_rx); |
| 662 | 86 HAL_DMA_DeInit(&hdma_usart1_rx); |
| 87 HAL_UART_DeInit(&huart1); | |
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88 dmaActive = 0; |
| 662 | 89 } |
| 90 | |
| 91 void MX_USART1_DMA_Init() | |
| 92 { | |
| 93 /* DMA controller clock enable */ | |
| 94 __DMA2_CLK_ENABLE(); | |
| 95 | |
| 96 /* Peripheral DMA init*/ | |
| 97 hdma_usart1_rx.Instance = DMA2_Stream5; | |
| 98 hdma_usart1_rx.Init.Channel = DMA_CHANNEL_4; | |
| 99 hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY; //DMA_MEMORY_TO_PERIPH; | |
| 100 hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE; | |
| 101 hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE; | |
| 102 hdma_usart1_rx.Init.PeriphDataAlignment = DMA_MDATAALIGN_BYTE; | |
| 103 hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; | |
| 104 hdma_usart1_rx.Init.Mode = DMA_NORMAL; | |
| 105 hdma_usart1_rx.Init.Priority = DMA_PRIORITY_LOW; | |
| 106 hdma_usart1_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; | |
| 107 HAL_DMA_Init(&hdma_usart1_rx); | |
| 108 | |
| 109 __HAL_LINKDMA(&huart1,hdmarx,hdma_usart1_rx); | |
| 110 | |
| 111 /* DMA interrupt init */ | |
| 112 HAL_NVIC_SetPriority(DMA2_Stream5_IRQn, 0, 0); | |
| 113 HAL_NVIC_EnableIRQ(DMA2_Stream5_IRQn); | |
| 38 | 114 } |
| 115 | |
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116 |
| 889 | 117 void GNSS_IO_init() { |
| 118 | |
| 119 GPIO_InitTypeDef GPIO_InitStruct = { 0 }; | |
| 120 /* Peripheral clock enable */ | |
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121 __HAL_RCC_USART6_CLK_ENABLE() |
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122 ; |
| 889 | 123 |
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124 __HAL_RCC_GPIOA_CLK_ENABLE() |
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125 ; |
| 889 | 126 /**USART6 GPIO Configuration |
| 127 PA11 ------> USART6_TX | |
| 128 PA12 ------> USART6_RX | |
| 129 */ | |
| 130 GPIO_InitStruct.Pin = GPIO_PIN_11 | GPIO_PIN_12; | |
| 131 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; | |
| 132 GPIO_InitStruct.Pull = GPIO_NOPULL; | |
| 133 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; | |
| 134 GPIO_InitStruct.Alternate = GPIO_AF8_USART6; | |
| 135 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); | |
| 136 | |
| 137 /* USART6 DMA Init */ | |
| 138 /* USART6_RX Init */ | |
| 139 hdma_usart6_rx.Instance = DMA2_Stream2; | |
| 140 hdma_usart6_rx.Init.Channel = DMA_CHANNEL_5; | |
| 141 hdma_usart6_rx.Init.Direction = DMA_PERIPH_TO_MEMORY; | |
| 142 hdma_usart6_rx.Init.PeriphInc = DMA_PINC_DISABLE; | |
| 143 hdma_usart6_rx.Init.MemInc = DMA_MINC_ENABLE; | |
| 144 hdma_usart6_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE; | |
| 145 hdma_usart6_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; | |
| 146 hdma_usart6_rx.Init.Mode = DMA_NORMAL; | |
| 147 hdma_usart6_rx.Init.Priority = DMA_PRIORITY_LOW; | |
| 148 hdma_usart6_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; | |
| 149 HAL_DMA_Init(&hdma_usart6_rx); | |
| 150 | |
| 151 __HAL_LINKDMA(&huart6, hdmarx, hdma_usart6_rx); | |
| 152 | |
| 153 /* USART6_TX Init */ | |
| 154 hdma_usart6_tx.Instance = DMA2_Stream6; | |
| 155 hdma_usart6_tx.Init.Channel = DMA_CHANNEL_5; | |
| 156 hdma_usart6_tx.Init.Direction = DMA_MEMORY_TO_PERIPH; | |
| 157 hdma_usart6_tx.Init.PeriphInc = DMA_PINC_DISABLE; | |
| 158 hdma_usart6_tx.Init.MemInc = DMA_MINC_ENABLE; | |
| 159 hdma_usart6_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE; | |
| 160 hdma_usart6_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; | |
| 161 hdma_usart6_tx.Init.Mode = DMA_NORMAL; | |
| 162 hdma_usart6_tx.Init.Priority = DMA_PRIORITY_LOW; | |
| 163 hdma_usart6_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; | |
| 164 HAL_DMA_Init(&hdma_usart6_tx); | |
| 165 | |
| 166 __HAL_LINKDMA(&huart6, hdmatx, hdma_usart6_tx); | |
| 167 | |
| 168 /* USART6 interrupt Init */ | |
| 169 HAL_NVIC_SetPriority(USART6_IRQn, 0, 0); | |
| 170 HAL_NVIC_EnableIRQ(USART6_IRQn); | |
| 171 | |
| 172 MX_USART6_DMA_Init(); | |
| 173 | |
| 174 } | |
| 175 | |
| 176 void MX_USART6_DMA_Init() { | |
| 177 /* DMA controller clock enable */ | |
| 178 __HAL_RCC_DMA2_CLK_ENABLE(); | |
| 179 | |
| 180 /* DMA interrupt init */ | |
| 181 /* DMA2_Stream2_IRQn interrupt configuration */ | |
| 182 HAL_NVIC_SetPriority(DMA2_Stream2_IRQn, 0, 0); | |
| 183 HAL_NVIC_EnableIRQ(DMA2_Stream2_IRQn); | |
| 184 /* DMA2_Stream6_IRQn interrupt configuration */ | |
| 185 HAL_NVIC_SetPriority(DMA2_Stream6_IRQn, 0, 0); | |
| 186 HAL_NVIC_EnableIRQ(DMA2_Stream6_IRQn); | |
| 187 } | |
| 188 | |
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189 |
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190 void MX_USART6_UART_DeInit(void) |
| 889 | 191 { |
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192 HAL_DMA_Abort(&hdma_usart6_rx); |
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193 HAL_DMA_DeInit(&hdma_usart6_rx); |
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194 HAL_DMA_Abort(&hdma_usart6_tx); |
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195 HAL_DMA_DeInit(&hdma_usart6_tx); |
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196 HAL_UART_DeInit(&huart6); |
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197 HAL_UART_DeInit(&huart6); |
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198 } |
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200 void MX_USART6_UART_Init(void) { |
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201 huart6.Instance = USART6; |
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202 huart6.Init.BaudRate = 9600; |
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203 huart6.Init.WordLength = UART_WORDLENGTH_8B; |
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204 huart6.Init.StopBits = UART_STOPBITS_1; |
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205 huart6.Init.Parity = UART_PARITY_NONE; |
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206 huart6.Init.Mode = UART_MODE_TX_RX; |
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207 huart6.Init.HwFlowCtl = UART_HWCONTROL_NONE; |
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208 huart6.Init.OverSampling = UART_OVERSAMPLING_16; |
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209 HAL_UART_Init(&huart6); |
| 889 | 210 } |
| 211 | |
| 794 | 212 void UART_MUX_SelectAddress(uint8_t muxAddress) |
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213 { |
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214 uint8_t indexstr[4]; |
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215 |
| 794 | 216 if(muxAddress <= MAX_MUX_CHANNEL) |
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217 { |
| 794 | 218 indexstr[0] = '~'; |
| 219 indexstr[1] = muxAddress; | |
| 220 indexstr[2] = 0x0D; | |
| 221 indexstr[3] = 0x0A; | |
| 222 | |
| 223 HAL_UART_Transmit(&huart1,indexstr,4,10); | |
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224 } |
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225 } |
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226 |
| 794 | 227 |
| 228 void UART_SendCmdString(uint8_t *cmdString) | |
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229 { |
| 794 | 230 uint8_t cmdLength = strlen((char*)cmdString); |
| 231 | |
| 232 if(cmdLength < 20) /* A longer string is an indication for a missing 0 termination */ | |
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233 { |
| 794 | 234 if(dmaActive == 0) |
| 235 { | |
| 236 UART_StartDMA_Receiption(); | |
| 237 } | |
| 238 HAL_UART_Transmit(&huart1,cmdString,cmdLength,10); | |
| 239 } | |
| 240 } | |
| 241 | |
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242 |
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243 void StringToInt(char *pstr, uint32_t *puInt32) |
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244 { |
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245 uint8_t index = 0; |
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246 uint32_t result = 0; |
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247 while((pstr[index] >= '0') && (pstr[index] <= '9')) |
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248 { |
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249 result *=10; |
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250 result += pstr[index] - '0'; |
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251 index++; |
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252 } |
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253 *puInt32 = result; |
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254 } |
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255 |
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256 void StringToUInt64(char *pstr, uint64_t *puint64) |
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257 { |
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258 uint8_t index = 0; |
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259 uint64_t result = 0; |
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260 while((pstr[index] >= '0') && (pstr[index] <= '9')) |
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261 { |
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262 result *=10; |
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263 result += pstr[index] - '0'; |
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264 index++; |
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265 } |
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266 *puint64 = result; |
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267 } |
| 662 | 268 |
| 742 | 269 void UART_StartDMA_Receiption() |
| 270 { | |
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271 if(dmaActive == 0) |
| 742 | 272 { |
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273 if(HAL_OK == HAL_UART_Receive_DMA (&huart1, &rxBuffer[rxWriteIndex], CHUNK_SIZE)) |
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274 { |
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275 dmaActive = 1; |
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276 } |
| 742 | 277 } |
| 278 } | |
| 690 | 279 |
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280 void UART_ChangeBaudrate(uint32_t newBaudrate) |
| 38 | 281 { |
| 809 | 282 uint8_t dmaWasActive = dmaActive; |
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283 // HAL_DMA_Abort(&hdma_usart1_rx); |
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284 MX_USART1_UART_DeInit(); |
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285 //HAL_UART_Abort(&huart1); |
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286 //HAL_DMA_DeInit(&hdma_usart1_rx); |
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287 |
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288 |
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289 // huart1.Instance->BRR = UART_BRR_SAMPLING8(HAL_RCC_GetPCLK2Freq()/2, newBaudrate); |
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290 huart1.Init.BaudRate = newBaudrate; |
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291 HAL_UART_Init(&huart1); |
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292 MX_USART1_DMA_Init(); |
| 809 | 293 if(dmaWasActive) |
| 794 | 294 { |
| 809 | 295 memset(rxBuffer,BUFFER_NODATA,sizeof(rxBuffer)); |
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296 rxReadIndex = 0; |
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297 rxWriteIndex = 0; |
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298 dmaActive = 0; |
| 742 | 299 UART_StartDMA_Receiption(); |
| 662 | 300 } |
| 38 | 301 } |
| 690 | 302 |
| 662 | 303 void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) |
| 38 | 304 { |
| 662 | 305 if(huart == &huart1) |
| 306 { | |
| 307 dmaActive = 0; | |
| 308 rxWriteIndex+=CHUNK_SIZE; | |
| 309 if(rxWriteIndex >= CHUNK_SIZE * CHUNKS_PER_BUFFER) | |
| 310 { | |
| 311 rxWriteIndex = 0; | |
| 312 } | |
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313 if((rxWriteIndex / CHUNK_SIZE) != (rxReadIndex / CHUNK_SIZE) || (rxWriteIndex == rxReadIndex)) /* start next transfer if we did not catch up with read index */ |
| 662 | 314 { |
| 809 | 315 UART_StartDMA_Receiption(); |
| 662 | 316 } |
| 317 } | |
| 38 | 318 } |
| 319 | |
| 794 | 320 void UART_ReadData(uint8_t sensorType) |
| 321 { | |
| 322 uint8_t localRX = rxReadIndex; | |
| 38 | 323 |
| 794 | 324 while((rxBuffer[localRX]!=BUFFER_NODATA)) |
| 325 { | |
| 326 switch (sensorType) | |
| 327 { | |
| 328 case SENSOR_MUX: | |
| 329 case SENSOR_DIGO2: uartO2_ProcessData(rxBuffer[localRX]); | |
| 330 break; | |
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331 #ifdef ENABLE_CO2_SUPPORT |
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332 case SENSOR_CO2: uartCo2_ProcessData(rxBuffer[localRX]); |
| 794 | 333 break; |
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334 #endif |
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335 #ifdef ENABLE_SENTINEL_MODE |
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336 case SENSOR_SENTINEL: uartSentinel_ProcessData(rxBuffer[localRX]); |
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337 break; |
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338 #endif |
| 794 | 339 default: |
| 340 break; | |
| 341 } | |
| 342 | |
| 343 rxBuffer[localRX] = BUFFER_NODATA; | |
| 344 localRX++; | |
| 345 rxReadIndex++; | |
| 346 if(rxReadIndex >= CHUNK_SIZE * CHUNKS_PER_BUFFER) | |
| 347 { | |
| 348 localRX = 0; | |
| 349 rxReadIndex = 0; | |
| 350 } | |
| 351 } | |
| 352 } | |
| 353 | |
| 354 void UART_FlushRxBuffer(void) | |
| 355 { | |
| 356 while(rxBuffer[rxReadIndex] != BUFFER_NODATA) | |
| 357 { | |
| 358 rxBuffer[rxReadIndex] = BUFFER_NODATA; | |
| 359 rxReadIndex++; | |
| 360 if(rxReadIndex >= CHUNK_SIZE * CHUNKS_PER_BUFFER) | |
| 361 { | |
| 362 rxReadIndex = 0; | |
| 363 } | |
| 364 } | |
| 365 } | |
| 662 | 366 |
| 861 | 367 uint8_t UART_isComActive(uint8_t sensorId) |
| 368 { | |
| 369 uint8_t active = 1; | |
| 809 | 370 |
| 861 | 371 uint8_t ComState = externalInterface_GetSensorState(sensorId + EXT_INTERFACE_MUX_OFFSET); |
| 372 | |
| 373 if((ComState == UART_COMMON_INIT) || (ComState == UART_COMMON_IDLE) || (ComState == UART_COMMON_ERROR)) | |
| 374 { | |
| 375 active = 0; | |
| 376 } | |
| 377 return active; | |
| 378 } | |
| 809 | 379 |
| 38 | 380 /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/ |