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annotate Small_CPU/Src/uart.c @ 923:6fc0e3d230e4 Evo_2_23 tip

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UART6 DMA handling: Make sure that RX transmission uses DMA stream 2
author Ideenmodellierer
date Mon, 04 Nov 2024 20:21:02 +0100
parents 7c996354b8ac
children
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1 /**
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2 ******************************************************************************
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3 * @file uart.c
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4 * @author heinrichs weikamp gmbh
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5 * @version V0.0.1
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6 * @date 27-March-2014
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7 * @brief button control
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8 *
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9 @verbatim
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10 ==============================================================================
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11 ##### How to use #####
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12 ==============================================================================
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13 @endverbatim
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14 ******************************************************************************
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15 * @attention
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16 *
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17 * <h2><center>&copy; COPYRIGHT(c) 2015 heinrichs weikamp</center></h2>
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18 *
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19 ******************************************************************************
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20 */
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21 /* Includes ------------------------------------------------------------------*/
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22 #include "uart.h"
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23 #include "uartProtocol_O2.h"
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24 #include "uartProtocol_Co2.h"
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25 #include "uartProtocol_Sentinel.h"
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26 #include "uartProtocol_GNSS.h"
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27 #include "externalInterface.h"
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28 #include "data_exchange.h"
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29 #include <string.h> /* memset */
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30
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31 #ifdef ENABLE_GPIO_V2
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32 extern UART_HandleTypeDef huart6;
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33 extern void UART6_RxCpltCallback(UART_HandleTypeDef *huart);
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34 extern void UART6_TxCpltCallback(UART_HandleTypeDef *huart);
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35 #endif
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37 /* Private variables ---------------------------------------------------------*/
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38
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39
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40 #define TX_BUF_SIZE (40u) /* max length for commands */
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41 #define CHUNK_SIZE (25u) /* the DMA will handle chunk size transfers */
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42 #define CHUNKS_PER_BUFFER (6u)
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45
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46 DMA_HandleTypeDef hdma_usart1_rx, hdma_usart1_tx;
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47
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48 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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49 uint8_t txBuffer[CHUNK_SIZE]; /* tx uses less bytes */
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50 uint8_t txBufferQue[TX_BUF_SIZE]; /* In MUX mode command may be send shortly after each other => allow q 1 entry que */
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51 uint8_t txBufferQueLen;
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52
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53 static uint8_t rxWriteIndex; /* Index of the data item which is analysed */
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54 static uint8_t rxReadIndex; /* Index at which new data is stared */
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55 static uint8_t lastCmdIndex; /* Index of last command which has not been completely received */
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56 static uint8_t dmaRxActive; /* Indicator if DMA reception needs to be started */
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57 static uint8_t dmaTxActive; /* Indicator if DMA reception needs to be started */
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58
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59 static uint32_t LastCmdRequestTick = 0; /* Used by ADC handler to avoid interferance with UART communication */
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60
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61 static uint8_t isEndIndication(uint8_t index);
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63 /* Exported functions --------------------------------------------------------*/
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64
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65 void UART_clearRxBuffer(void)
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66 {
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67 uint16_t index = 0;
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68 do
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69 {
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70 rxBuffer[index++] = BUFFER_NODATA_LOW;
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71 rxBuffer[index++] = BUFFER_NODATA_HIGH;
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72 } while (index < sizeof(rxBuffer));
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74 rxReadIndex = 0;
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75 rxWriteIndex = 0;
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76 }
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77
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78 void MX_USART1_UART_Init(void)
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79 {
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80 /* regular init */
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81 huart1.Instance = USART1;
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82 huart1.Init.BaudRate = 19200;
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83 huart1.Init.WordLength = UART_WORDLENGTH_8B;
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84 huart1.Init.StopBits = UART_STOPBITS_1;
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85 huart1.Init.Parity = UART_PARITY_NONE;
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86 huart1.Init.Mode = UART_MODE_TX_RX;
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87 huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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88 huart1.Init.OverSampling = UART_OVERSAMPLING_16;
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89
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90 HAL_UART_Init(&huart1);
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91
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92 MX_USART1_DMA_Init();
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93
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94 UART_clearRxBuffer();
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95 rxReadIndex = 0;
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96 lastCmdIndex = 0;
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97 rxWriteIndex = 0;
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98 dmaRxActive = 0;
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99 dmaTxActive = 0;
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100 txBufferQueLen = 0;
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101 }
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102
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104
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105 void MX_USART1_UART_DeInit(void)
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106 {
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107 HAL_DMA_Abort(&hdma_usart1_rx);
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108 HAL_DMA_DeInit(&hdma_usart1_rx);
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109 HAL_DMA_Abort(&hdma_usart1_tx);
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110 HAL_DMA_DeInit(&hdma_usart1_tx);
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111 HAL_UART_DeInit(&huart1);
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112 dmaRxActive = 0;
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113 dmaTxActive = 0;
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114 txBufferQueLen = 0;
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115 }
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116
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117 void MX_USART1_DMA_Init()
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118 {
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119 /* DMA controller clock enable */
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120 __DMA2_CLK_ENABLE();
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121
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122 /* Peripheral DMA init*/
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123 hdma_usart1_rx.Instance = DMA2_Stream5;
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124 hdma_usart1_rx.Init.Channel = DMA_CHANNEL_4;
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125 hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY; //DMA_MEMORY_TO_PERIPH;
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126 hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
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127 hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE;
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128 hdma_usart1_rx.Init.PeriphDataAlignment = DMA_MDATAALIGN_BYTE;
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129 hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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130 hdma_usart1_rx.Init.Mode = DMA_NORMAL;
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131 hdma_usart1_rx.Init.Priority = DMA_PRIORITY_LOW;
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132 hdma_usart1_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
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133 HAL_DMA_Init(&hdma_usart1_rx);
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134
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135 __HAL_LINKDMA(&huart1,hdmarx,hdma_usart1_rx);
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136
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137 hdma_usart1_tx.Instance = DMA2_Stream7;
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138 hdma_usart1_tx.Init.Channel = DMA_CHANNEL_4;
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139 hdma_usart1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
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140 hdma_usart1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
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141 hdma_usart1_tx.Init.MemInc = DMA_MINC_ENABLE;
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142 hdma_usart1_tx.Init.PeriphDataAlignment = DMA_MDATAALIGN_BYTE;
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143 hdma_usart1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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144 hdma_usart1_tx.Init.Mode = DMA_NORMAL;
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145 hdma_usart1_tx.Init.Priority = DMA_PRIORITY_LOW;
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146 hdma_usart1_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
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147 HAL_DMA_Init(&hdma_usart1_tx);
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148
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149 __HAL_LINKDMA(&huart1,hdmatx,hdma_usart1_tx);
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150
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151
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152 /* DMA interrupt init */
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153 HAL_NVIC_SetPriority(DMA2_Stream5_IRQn, 2, 2);
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154 HAL_NVIC_EnableIRQ(DMA2_Stream5_IRQn);
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155 HAL_NVIC_SetPriority(DMA2_Stream7_IRQn, 2, 1);
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156 HAL_NVIC_EnableIRQ(DMA2_Stream7_IRQn);
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157 }
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158
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159 void UART_MUX_SelectAddress(uint8_t muxAddress)
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160 {
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161 uint8_t indexstr[4];
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162
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163 if(muxAddress <= MAX_MUX_CHANNEL)
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164 {
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165 indexstr[0] = '~';
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166 indexstr[1] = muxAddress;
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167 indexstr[2] = 0x0D;
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168 indexstr[3] = 0x0A;
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169 if(!dmaTxActive)
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170 {
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171 memcpy(txBuffer, indexstr, 4);
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172 dmaTxActive = 0;
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173 if(HAL_OK == HAL_UART_Transmit_DMA(&huart1,txBuffer,4))
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174 {
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175 dmaTxActive = 1;
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176 while(dmaTxActive)
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177 {
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178 HAL_Delay(1);
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179 }
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180 }
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181 }
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182 else
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183 {
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184 memcpy(txBufferQue, indexstr, 4);
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185 txBufferQueLen = 4;
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186 }
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187 }
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188 }
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189
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190
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191 void UART_SendCmdString(uint8_t *cmdString)
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192 {
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193 uint8_t cmdLength = strlen((char*)cmdString);
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194
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195 if(dmaTxActive == 0)
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196 {
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197 if(cmdLength < TX_BUF_SIZE) /* A longer string is an indication for a missing 0 termination */
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198 {
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199 if(dmaRxActive == 0)
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200 {
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201 UART_StartDMA_Receiption();
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202 }
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203 memcpy(txBuffer, cmdString, cmdLength);
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204 if(HAL_OK == HAL_UART_Transmit_DMA(&huart1,txBuffer,cmdLength))
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205 {
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206 dmaTxActive = 1;
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207 LastCmdRequestTick = HAL_GetTick();
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208 }
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209 }
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210 }
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211 else
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212 {
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213 memcpy(txBufferQue, cmdString, cmdLength);
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214 txBufferQueLen = cmdLength;
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215 }
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216 }
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217
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218 void UART_SendCmdUbx(const uint8_t *cmd, uint8_t len)
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219 {
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220 if(len < TX_BUF_SIZE) /* A longer string is an indication for a missing 0 termination */
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221 {
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222 if(dmaRxActive == 0)
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223 {
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224 UART_StartDMA_Receiption();
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225 }
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226 memcpy(txBuffer, cmd, len);
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227 if(HAL_OK == HAL_UART_Transmit_DMA(&huart1,txBuffer,len))
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228 {
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229 dmaTxActive = 1;
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230 LastCmdRequestTick = HAL_GetTick();
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231 }
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232 }
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233 }
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234
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235
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236 void StringToInt(char *pstr, uint32_t *puInt32)
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237 {
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238 uint8_t index = 0;
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239 uint32_t result = 0;
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240 while((pstr[index] >= '0') && (pstr[index] <= '9'))
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241 {
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242 result *=10;
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243 result += pstr[index] - '0';
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244 index++;
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245 }
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246 *puInt32 = result;
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247 }
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248
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249 void StringToUInt64(char *pstr, uint64_t *puint64)
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250 {
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251 uint8_t index = 0;
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252 uint64_t result = 0;
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253 while((pstr[index] >= '0') && (pstr[index] <= '9'))
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254 {
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255 result *=10;
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256 result += pstr[index] - '0';
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257 index++;
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258 }
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259 *puint64 = result;
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260 }
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261
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262 void UART_StartDMA_Receiption()
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263 {
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264 if(dmaRxActive == 0)
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265 {
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266 if(((rxWriteIndex / CHUNK_SIZE) != (rxReadIndex / CHUNK_SIZE)) || ((isEndIndication(rxWriteIndex)) && (isEndIndication(rxWriteIndex + 1)))) /* start next transfer if we did not catch up with read index */
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267 {
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268 if(HAL_OK == HAL_UART_Receive_DMA (&huart1, &rxBuffer[rxWriteIndex], CHUNK_SIZE))
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269 {
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270 dmaRxActive = 1;
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271 }
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272 }
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273 }
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274 }
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fca2bd25e6e2 Added Sentinel protocoll support:
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275
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276 void UART_ChangeBaudrate(uint32_t newBaudrate)
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277 {
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278 MX_USART1_UART_DeInit();
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e9eba334b942 Migrated CO2 protocol implementation to new format:
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279 huart1.Init.BaudRate = newBaudrate;
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280 HAL_UART_Init(&huart1);
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281 MX_USART1_DMA_Init();
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282 HAL_NVIC_SetPriority(USART1_IRQn, 1, 3);
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283 HAL_NVIC_EnableIRQ(USART1_IRQn);
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284
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285 UART_clearRxBuffer();
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286 rxReadIndex = 0;
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287 rxWriteIndex = 0;
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288 dmaRxActive = 0;
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289 txBufferQueLen = 0;
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290 }
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fca2bd25e6e2 Added Sentinel protocoll support:
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291
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292 void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
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293 {
662
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294 if(huart == &huart1)
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295 {
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296 dmaRxActive = 0;
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297 rxWriteIndex+=CHUNK_SIZE;
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298 if(rxWriteIndex >= CHUNK_SIZE * CHUNKS_PER_BUFFER)
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299 {
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300 rxWriteIndex = 0;
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301 }
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302 UART_StartDMA_Receiption();
662
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303 }
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304 #ifdef ENABLE_GPIO_V2
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305 if(huart == &huart6)
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306 {
7c996354b8ac Moved UART6 into a separate unit:
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307 UART6_RxCpltCallback(huart);
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308 }
7c996354b8ac Moved UART6 into a separate unit:
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309 #endif
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310 }
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311 void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
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312 {
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313 if(huart == &huart1)
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314 {
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315 dmaTxActive = 0;
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316 UART_WriteData();
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317 if(txBufferQueLen)
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318 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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319 memcpy(txBuffer, txBufferQue, txBufferQueLen);
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320 HAL_UART_Transmit_DMA(&huart1,txBuffer,txBufferQueLen);
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321 dmaTxActive = 1;
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322 txBufferQueLen = 0;
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323 }
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324 }
922
7c996354b8ac Moved UART6 into a separate unit:
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325 #ifdef ENABLE_GPIO_V2
7c996354b8ac Moved UART6 into a separate unit:
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326 if(huart == &huart6)
7c996354b8ac Moved UART6 into a separate unit:
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327 {
7c996354b8ac Moved UART6 into a separate unit:
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328 UART6_TxCpltCallback(huart);
7c996354b8ac Moved UART6 into a separate unit:
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diff changeset
329 }
7c996354b8ac Moved UART6 into a separate unit:
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330 #endif
916
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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331 }
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
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332
916
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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333 uint8_t isEndIndication(uint8_t index)
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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334 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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335 uint8_t ret = 0;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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336 if(index % 2)
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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337 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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338 if(rxBuffer[index] == BUFFER_NODATA_HIGH)
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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339 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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340 ret = 1;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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341 }
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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342 }
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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343 else
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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344 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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345 if(rxBuffer[index] == BUFFER_NODATA_LOW)
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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346 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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347 ret = 1;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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348 }
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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349 }
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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350
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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351 return ret;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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352 }
794
bb37d4f3e50e Restructure UART based sensor handling:
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353 void UART_ReadData(uint8_t sensorType)
bb37d4f3e50e Restructure UART based sensor handling:
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354 {
bb37d4f3e50e Restructure UART based sensor handling:
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355 uint8_t localRX = rxReadIndex;
916
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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356 uint8_t futureIndex = rxReadIndex + 1;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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357 uint8_t moreData = 0;
38
5f11787b4f42 include in ostc4 repository
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358
916
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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359 if(futureIndex >= CHUNK_SIZE * CHUNKS_PER_BUFFER)
794
bb37d4f3e50e Restructure UART based sensor handling:
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360 {
916
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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361 futureIndex = 0;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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362 }
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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363
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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364 if((!isEndIndication(localRX)) || (!isEndIndication(futureIndex))) do
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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365 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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366 while((!isEndIndication(localRX)) || (moreData))
794
bb37d4f3e50e Restructure UART based sensor handling:
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367 {
916
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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368 moreData = 0;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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369 switch (sensorType)
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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370 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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371 case SENSOR_MUX:
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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372 case SENSOR_DIGO2: uartO2_ProcessData(rxBuffer[localRX]);
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373 break;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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374 #ifdef ENABLE_CO2_SUPPORT
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375 case SENSOR_CO2: uartCo2_ProcessData(rxBuffer[localRX]);
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376 break;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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377 #endif
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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378 #ifdef ENABLE_GNSS_SUPPORT
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379 case SENSOR_GNSS: uartGnss_ProcessData(rxBuffer[localRX]);
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380 break;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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381 #endif
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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382 #ifdef ENABLE_SENTINEL_MODE
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383 case SENSOR_SENTINEL: uartSentinel_ProcessData(rxBuffer[localRX]);
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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384 break;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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385 #endif
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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386 default:
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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387 break;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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388 }
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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389 if(localRX % 2)
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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390 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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391 rxBuffer[localRX] = BUFFER_NODATA_HIGH;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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392 }
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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diff changeset
393 else
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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diff changeset
394 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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395 rxBuffer[localRX] = BUFFER_NODATA_LOW;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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diff changeset
396 }
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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diff changeset
397
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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398 localRX++;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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diff changeset
399 rxReadIndex++;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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400 if(rxReadIndex >= CHUNK_SIZE * CHUNKS_PER_BUFFER)
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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diff changeset
401 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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parents: 894
diff changeset
402 localRX = 0;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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403 rxReadIndex = 0;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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parents: 894
diff changeset
404 }
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
405 futureIndex++;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
406 if(futureIndex >= CHUNK_SIZE * CHUNKS_PER_BUFFER)
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
407 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
408 futureIndex = 0;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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parents: 894
diff changeset
409 }
794
bb37d4f3e50e Restructure UART based sensor handling:
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diff changeset
410 }
916
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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diff changeset
411 if(!isEndIndication(futureIndex))
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
412 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
413 moreData = 1;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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diff changeset
414 }
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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diff changeset
415 } while(moreData);
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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diff changeset
416 }
794
bb37d4f3e50e Restructure UART based sensor handling:
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417
916
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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418 void UART_WriteData(void)
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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419 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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diff changeset
420 if(huart1.hdmatx->State == HAL_DMA_STATE_READY)
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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diff changeset
421 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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diff changeset
422 huart1.gState = HAL_UART_STATE_READY;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
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diff changeset
423 dmaTxActive = 0;
794
bb37d4f3e50e Restructure UART based sensor handling:
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424 }
918
f72613a152dd Switch external interface tx communication to DMA:
Ideenmodellierer
parents: 916
diff changeset
425 if(huart1.hdmarx->State == HAL_DMA_STATE_READY)
f72613a152dd Switch external interface tx communication to DMA:
Ideenmodellierer
parents: 916
diff changeset
426 {
f72613a152dd Switch external interface tx communication to DMA:
Ideenmodellierer
parents: 916
diff changeset
427 huart1.RxState = HAL_UART_STATE_READY;
f72613a152dd Switch external interface tx communication to DMA:
Ideenmodellierer
parents: 916
diff changeset
428 dmaRxActive = 0;
f72613a152dd Switch external interface tx communication to DMA:
Ideenmodellierer
parents: 916
diff changeset
429 }
794
bb37d4f3e50e Restructure UART based sensor handling:
Ideenmodellierer
parents: 787
diff changeset
430 }
bb37d4f3e50e Restructure UART based sensor handling:
Ideenmodellierer
parents: 787
diff changeset
431
bb37d4f3e50e Restructure UART based sensor handling:
Ideenmodellierer
parents: 787
diff changeset
432 void UART_FlushRxBuffer(void)
bb37d4f3e50e Restructure UART based sensor handling:
Ideenmodellierer
parents: 787
diff changeset
433 {
916
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
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diff changeset
434 uint8_t futureIndex = rxReadIndex + 1;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
435
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
436 if(futureIndex >= CHUNK_SIZE * CHUNKS_PER_BUFFER)
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
437 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
438 futureIndex = 0;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
439 }
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
440 while((rxBuffer[rxReadIndex] != BUFFER_NODATA_LOW) && (rxBuffer[futureIndex] != BUFFER_NODATA_HIGH))
794
bb37d4f3e50e Restructure UART based sensor handling:
Ideenmodellierer
parents: 787
diff changeset
441 {
916
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
442 if(rxReadIndex % 2)
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
443 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
444 rxBuffer[rxReadIndex++] = BUFFER_NODATA_HIGH;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
445 }
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
446 else
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
447 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
448 rxBuffer[rxReadIndex++] = BUFFER_NODATA_LOW;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
449 }
794
bb37d4f3e50e Restructure UART based sensor handling:
Ideenmodellierer
parents: 787
diff changeset
450 if(rxReadIndex >= CHUNK_SIZE * CHUNKS_PER_BUFFER)
bb37d4f3e50e Restructure UART based sensor handling:
Ideenmodellierer
parents: 787
diff changeset
451 {
bb37d4f3e50e Restructure UART based sensor handling:
Ideenmodellierer
parents: 787
diff changeset
452 rxReadIndex = 0;
bb37d4f3e50e Restructure UART based sensor handling:
Ideenmodellierer
parents: 787
diff changeset
453 }
916
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
454 futureIndex++;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
455 if(futureIndex >= CHUNK_SIZE * CHUNKS_PER_BUFFER)
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
456 {
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
457 futureIndex = 0;
4832981f9af8 External sensor UART: Switch to DMA TX transfers:
Ideenmodellierer
parents: 894
diff changeset
458 }
794
bb37d4f3e50e Restructure UART based sensor handling:
Ideenmodellierer
parents: 787
diff changeset
459 }
bb37d4f3e50e Restructure UART based sensor handling:
Ideenmodellierer
parents: 787
diff changeset
460 }
662
1b995079c045 PSCR Mode
heinrichs weikamp
parents: 38
diff changeset
461
861
ad96f99ebc78 Synchronize ADC and UART activities:
Ideenmodellierer
parents: 842
diff changeset
462 uint8_t UART_isComActive(uint8_t sensorId)
ad96f99ebc78 Synchronize ADC and UART activities:
Ideenmodellierer
parents: 842
diff changeset
463 {
ad96f99ebc78 Synchronize ADC and UART activities:
Ideenmodellierer
parents: 842
diff changeset
464 uint8_t active = 1;
809
9602a7338f28 DevBugfix CO2 sensor in streaming mode:
Ideenmodellierer
parents: 803
diff changeset
465
921
eb4109d7d1e9 Improved mix mode ADC conversion:
Ideenmodellierer
parents: 918
diff changeset
466 if(time_elapsed_ms(LastCmdRequestTick, HAL_GetTick()) > 300) /* UART activity should be inactive 300ms after last command */
861
ad96f99ebc78 Synchronize ADC and UART activities:
Ideenmodellierer
parents: 842
diff changeset
467 {
ad96f99ebc78 Synchronize ADC and UART activities:
Ideenmodellierer
parents: 842
diff changeset
468 active = 0;
ad96f99ebc78 Synchronize ADC and UART activities:
Ideenmodellierer
parents: 842
diff changeset
469 }
ad96f99ebc78 Synchronize ADC and UART activities:
Ideenmodellierer
parents: 842
diff changeset
470 return active;
ad96f99ebc78 Synchronize ADC and UART activities:
Ideenmodellierer
parents: 842
diff changeset
471 }
809
9602a7338f28 DevBugfix CO2 sensor in streaming mode:
Ideenmodellierer
parents: 803
diff changeset
472
921
eb4109d7d1e9 Improved mix mode ADC conversion:
Ideenmodellierer
parents: 918
diff changeset
473
38
5f11787b4f42 include in ostc4 repository
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parents:
diff changeset
474 /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/