annotate Small_CPU/Src/spi.c @ 105:68181cd61f20 kittz

fix comments
author Dmitry Romanov <kitt@bk.ru>
date Mon, 24 Dec 2018 16:19:09 +0300
parents 22a1094545f3
children 6347a86caa18
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1 /**
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2 ******************************************************************************
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3 * @file spi.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 16-Sept-2014
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7 * @brief Source code for spi 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) 2014 heinrichs weikamp</center></h2>
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18 *
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19 ******************************************************************************
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20 */
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22 /* Includes ------------------------------------------------------------------*/
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23 #include "spi.h"
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24 //#include "gpio.h"
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26 /* USER CODE BEGIN 0 */
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27 #include "scheduler.h"
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29 extern void GPIO_new_DEBUG_LOW(void);
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30 extern void GPIO_new_DEBUG_HIGH(void);
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31
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32 uint8_t data_error = 0;
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33 uint32_t data_error_time = 0;
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35 static void SPI_Error_Handler(void);
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37 /* USER CODE END 0 */
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39 static uint8_t SPI_check_header_and_footer_ok(void);
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41 SPI_HandleTypeDef hspi1;
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42 SPI_HandleTypeDef hspi3;
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44 DMA_HandleTypeDef hdma_tx;
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45 DMA_HandleTypeDef hdma_rx;
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47 // SPI3 init function
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48 void MX_SPI3_Init(void) {
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49 hspi3.Instance = SPI3;
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50 hspi3.Init.Mode = SPI_MODE_MASTER;
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51 hspi3.Init.Direction = SPI_DIRECTION_2LINES;
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52 hspi3.Init.DataSize = SPI_DATASIZE_8BIT;
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53 hspi3.Init.CLKPolarity = SPI_POLARITY_HIGH;
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54 hspi3.Init.CLKPhase = SPI_PHASE_1EDGE;
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55 hspi3.Init.NSS = SPI_NSS_SOFT;
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56 hspi3.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;
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57 hspi3.Init.FirstBit = SPI_FIRSTBIT_MSB;
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58 hspi3.Init.TIMode = SPI_TIMODE_DISABLED;
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59 hspi3.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
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60 hspi3.Init.CRCPolynomial = 7;
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61 HAL_SPI_Init(&hspi3);
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62 }
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64 void MX_SPI3_DeInit(void) {
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65 HAL_SPI_DeInit(&hspi3);
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66 }
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67
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68 uint8_t SPI3_ButtonAdjust(uint8_t *arrayInput, uint8_t *arrayOutput) {
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69 HAL_StatusTypeDef status;
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70 uint8_t answer[10];
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71 uint8_t rework[10];
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73 rework[0] = 0xFF;
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74 for (int i = 0; i < 3; i++) {
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75 // limiter
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76 if (arrayInput[i] == 0xFF)
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77 arrayInput[i] = 0xFE;
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78 if (arrayInput[i] >= 15) {
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79 // copy - ausl�se-schwelle
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80 rework[i + 1] = arrayInput[i];
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81 // wieder-scharf-schalte-schwelle
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82 rework[i + 3 + 1] = arrayInput[i] - 10;
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83 } else if (arrayInput[i] >= 10) {
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84 // copy - ausl�se-schwelle
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85 rework[i + 1] = arrayInput[i];
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86 // wieder-scharf-schalte-schwelle
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87 rework[i + 3 + 1] = arrayInput[i] - 5;
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88 } else {
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89 // copy - ausl�se-schwelle
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90 rework[i + 1] = 7;
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91 // wieder-scharf-schalte-schwelle
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92 rework[i + 3 + 1] = 6;
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93 }
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94 }
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96 status = HAL_OK; /* = 0 */
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97 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET);
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98 for (int i = 0; i < 7; i++) {
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99 HAL_Delay(10);
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100 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_RESET);
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101 HAL_Delay(10);
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102 status += HAL_SPI_TransmitReceive(&hspi3, &rework[i], &answer[i], 1,
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103 20);
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104 HAL_Delay(10);
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105 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET);
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106 }
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107
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108 if (status == HAL_OK) {
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109 for (int i = 0; i < 3; i++) {
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110 arrayOutput[i] = answer[i + 2]; // first not, return of 0xFF not
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111 }
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112 return 1;
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113 } else
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114
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115 return 0;
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116 }
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117
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118 // SPI5 init function
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119 void MX_SPI1_Init(void) {
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120 hspi1.Instance = SPI1;
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121 hspi1.Init.Mode = SPI_MODE_SLAVE;
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122 hspi1.Init.Direction = SPI_DIRECTION_2LINES;
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123 hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
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124 hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
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125 hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
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126 hspi1.Init.NSS = SPI_NSS_HARD_INPUT; //SPI_NSS_SOFT;
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127 hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8;
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128 hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
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129 hspi1.Init.TIMode = SPI_TIMODE_DISABLED;
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130 hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED; //_DISABLED; _ENABLED;
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131 hspi1.Init.CRCPolynomial = 7;
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132 HAL_SPI_Init(&hspi1);
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133 }
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134
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135 void MX_SPI_DeInit(void) {
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136 HAL_SPI_DeInit(&hspi1);
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137 }
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138
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139 void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi) {
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140
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141 GPIO_InitTypeDef GPIO_InitStruct;
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142
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143 if (hspi->Instance == SPI1) {
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144 // Peripheral clock enable
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145 __SPI1_CLK_ENABLE();
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146 __GPIOA_CLK_ENABLE();
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147 //SPI1 GPIO Configuration
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148 //PA4 ------> SPI1_CS
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149 //PA5 ------> SPI1_SCK
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150 //PA6 ------> SPI1_MISO
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151 //PA7 ------> SPI1_MOSI
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152
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153 GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7;
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154 // GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
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155 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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156 GPIO_InitStruct.Pull = GPIO_PULLUP;
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157 GPIO_InitStruct.Speed = GPIO_SPEED_MEDIUM;
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158 GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
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159 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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160
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161 //##-3- Configure the DMA streams ##########################################
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162 // Configure the DMA handler for Transmission process
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163 hdma_tx.Instance = DMA2_Stream3;
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164 hdma_tx.Init.Channel = DMA_CHANNEL_3;
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165 hdma_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
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166 hdma_tx.Init.PeriphInc = DMA_PINC_DISABLE;
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167 hdma_tx.Init.MemInc = DMA_MINC_ENABLE;
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168 hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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169 hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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170 hdma_tx.Init.Mode = DMA_NORMAL;
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171 hdma_tx.Init.Priority = DMA_PRIORITY_VERY_HIGH;
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172 hdma_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
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173 hdma_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
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174 hdma_tx.Init.MemBurst = DMA_MBURST_INC4;
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175 hdma_tx.Init.PeriphBurst = DMA_PBURST_INC4;
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176
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177 HAL_DMA_Init(&hdma_tx);
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178
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179 // Associate the initialized DMA handle to the the SPI handle
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180 __HAL_LINKDMA(hspi, hdmatx, hdma_tx);
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181
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182 // Configure the DMA handler for Transmission process
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183 hdma_rx.Instance = DMA2_Stream0;
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184 hdma_rx.Init.Channel = DMA_CHANNEL_3;
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185 hdma_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
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186 hdma_rx.Init.PeriphInc = DMA_PINC_DISABLE;
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187 hdma_rx.Init.MemInc = DMA_MINC_ENABLE;
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188 hdma_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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189 hdma_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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190 hdma_rx.Init.Mode = DMA_NORMAL;
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191 hdma_rx.Init.Priority = DMA_PRIORITY_HIGH;
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192 hdma_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
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193 hdma_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
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194 hdma_rx.Init.MemBurst = DMA_MBURST_INC4;
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195 hdma_rx.Init.PeriphBurst = DMA_PBURST_INC4;
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196
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197 HAL_DMA_Init(&hdma_rx);
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198
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199 // Associate the initialized DMA handle to the the SPI handle
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200 __HAL_LINKDMA(hspi, hdmarx, hdma_rx);
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201
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202 //##-4- Configure the NVIC for DMA #########################################
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203 //NVIC configuration for DMA transfer complete interrupt (SPI3_RX)
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204 HAL_NVIC_SetPriority(DMA2_Stream0_IRQn, 1, 0);
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205 HAL_NVIC_EnableIRQ(DMA2_Stream0_IRQn);
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206
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207 // NVIC configuration for DMA transfer complete interrupt (SPI1_TX)
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208 HAL_NVIC_SetPriority(DMA2_Stream3_IRQn, 1, 1);
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209 HAL_NVIC_EnableIRQ(DMA2_Stream3_IRQn);
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210 } else if (hspi->Instance == SPI3) {
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211 __GPIOC_CLK_ENABLE();
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212 __SPI3_CLK_ENABLE();
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213
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214 //SPI1 GPIO Configuration
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215 //PC10 ------> SPI3_SCK
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216 //PC11 ------> SPI3_MISO
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217 //PC12 ------> SPI3_MOSI
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218 //PA15 ------> SPI3_NSS (official)
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219 //PC9 ------> SPI3_NSS (hw)
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220
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221 GPIO_InitStruct.Pin = GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12;
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222 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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223 GPIO_InitStruct.Pull = GPIO_PULLUP;
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224 GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
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225 GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
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226 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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227
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228 GPIO_InitStruct.Pin = GPIO_PIN_9;
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229 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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230 GPIO_InitStruct.Pull = GPIO_PULLUP;
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231 GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
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232 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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233
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234 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET);
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235 }
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236 }
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237
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238 void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi) {
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239 if (hspi->Instance == SPI1) {
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240 __SPI1_FORCE_RESET();
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241 __SPI1_RELEASE_RESET();
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242
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243 //SPI1 GPIO Configuration
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244 //PA5 ------> SPI1_SCK
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245 //PA6 ------> SPI1_MISO
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246 //PA7 ------> SPI1_MOSI
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247
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248 HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7);
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249
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250 HAL_DMA_DeInit(&hdma_tx);
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251 HAL_DMA_DeInit(&hdma_rx);
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252
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253 HAL_NVIC_DisableIRQ(DMA2_Stream3_IRQn);
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254 HAL_NVIC_DisableIRQ(DMA2_Stream0_IRQn);
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255 } else if (hspi->Instance == SPI3) {
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256 __SPI3_FORCE_RESET();
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257 __SPI3_RELEASE_RESET();
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258
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259 //SPI1 GPIO Configuration
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260 //PC10 ------> SPI3_SCK
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261 //PC11 ------> SPI3_MISO
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262 //PC12 ------> SPI3_MOSI
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263 //PA15 ------> SPI3_NSS (official)
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264 //PC9 ------> SPI3_NSS (hw)
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265 HAL_GPIO_DeInit(GPIOC, GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12);
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266 }
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267 }
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268
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269 void SPI_synchronize_with_Master(void) {
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270 // GPIO_InitTypeDef GPIO_InitStruct;
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271 //
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272 // __GPIOA_CLK_ENABLE();
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273 // /**SPI1 GPIO Configuration
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274 // PA5 ------> SPI1_SCK
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275 // */
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276 // GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5;
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277 // GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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278 // GPIO_InitStruct.Pull = GPIO_PULLUP;
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279 // GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
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280 // HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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281 //
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282 // HAL_Delay(10);
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283 // while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_4) == 0);
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284 // HAL_Delay(10);
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285 // while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_5) == 1);
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286 // HAL_Delay(20);
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287 }
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288
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289 void SPI_Start_single_TxRx_with_Master(void) {
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290 uint8_t * pOutput;
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291
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292 if (global.dataSendToSlave.getDeviceDataNow) {
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293 global.dataSendToSlave.getDeviceDataNow = 0;
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294 pOutput = (uint8_t*) &(global.deviceDataSendToMaster);
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295 } else {
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296 pOutput = (uint8_t*) &(global.dataSendToMaster);
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297 }
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298
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299 if (HAL_SPI_TransmitReceive_DMA(&hspi1, pOutput,(uint8_t*) &(global.dataSendToSlave), EXCHANGE_BUFFERSIZE)!= HAL_OK) {
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300 // Transfer error in transmission process
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301 SPI_Error_Handler();
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302 }
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303 }
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304
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305 void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi) {
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306 /* restart SPI */
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307 if (hspi == &hspi1) {
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308
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309 global.check_sync_not_running = 0;
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310 /* stop data exchange? */
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311 if (global.mode == MODE_SHUTDOWN) {
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312 global.mode = MODE_SLEEP;
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313 global.dataSendToSlavePending = 0;
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314 global.dataSendToSlaveIsValid = 1;
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315 global.dataSendToSlaveIsNotValidCount = 0;
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316 return;
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317 }
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318
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319 /* data consistent? */
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320 if (SPI_check_header_and_footer_ok()) {
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321 // GPIO_new_DEBUG_HIGH(); //For debug.
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322 global.dataSendToSlaveIsValid = 1;
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323 global.dataSendToSlaveIsNotValidCount = 0;
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324 } else {
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325 // GPIO_new_DEBUG_LOW(); //For debug.
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326 global.dataSendToSlaveIsValid = 0;
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327 global.dataSendToSlaveIsNotValidCount++;
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328 MX_SPI_DeInit();
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329 HAL_Delay(30);
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330 MX_DMA_Init();
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331 MX_SPI1_Init();
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332 }
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333 global.dataSendToMaster.power_on_reset = 0;
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334 global.deviceDataSendToMaster.power_on_reset = 0;
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335
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336 //TODO:REMOVE
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337 // if ( !global.dataSendToSlaveStopEval ) {
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338 // scheduleSpecial_Evaluate_DataSendToSlave();
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339 // }
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340 scheduleSpecial_Evaluate_DataSendToSlave();
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341 SPI_Start_single_TxRx_with_Master(); //Send data always.
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342 }
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343 }
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344
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345 static uint8_t SPI_check_header_and_footer_ok(void) {
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346 if (global.dataSendToSlave.header.checkCode[0] != 0xBB)
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347 return 0;
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348 if (global.dataSendToSlave.header.checkCode[1] != 0x01)
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349 return 0;
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350 if (global.dataSendToSlave.header.checkCode[2] != 0x01)
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351 return 0;
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352 if (global.dataSendToSlave.header.checkCode[3] != 0xBB)
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353 return 0;
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354 if (global.dataSendToSlave.footer.checkCode[0] != 0xF4)
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355 return 0;
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356 if (global.dataSendToSlave.footer.checkCode[1] != 0xF3)
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357 return 0;
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358 if (global.dataSendToSlave.footer.checkCode[2] != 0xF2)
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359 return 0;
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360 if (global.dataSendToSlave.footer.checkCode[3] != 0xF1)
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361 return 0;
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362
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363 return 1;
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364 }
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365
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366 static void SPI_Error_Handler(void) {
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367 //The device is locks. Hard to recover.
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368 // while(1)
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369 // {
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370 // }
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371 }
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372
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373 /**
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374 * @}
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375 */
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377 /**
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378 * @}
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379 */
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380
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381 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/