annotate Small_CPU/Src/spi.c @ 122:871baf20776b FlipDisplay

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author Ideenmodellierer
date Sun, 13 Jan 2019 18:59:53 +0100
parents 6347a86caa18
children 4b355396557a
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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 "dma.h"
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25 //#include "gpio.h"
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27 /* USER CODE BEGIN 0 */
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28 #include "scheduler.h"
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29
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30 #ifdef DEBUG_GPIO
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31 extern void GPIO_new_DEBUG_LOW(void);
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32 extern void GPIO_new_DEBUG_HIGH(void);
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33 #endif
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35 uint8_t data_error = 0;
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36 uint32_t data_error_time = 0;
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38 static void SPI_Error_Handler(void);
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40 /* USER CODE END 0 */
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42 static uint8_t SPI_check_header_and_footer_ok(void);
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44 SPI_HandleTypeDef hspi1;
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45 SPI_HandleTypeDef hspi3;
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47 DMA_HandleTypeDef hdma_tx;
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48 DMA_HandleTypeDef hdma_rx;
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49
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50 // SPI3 init function
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51 void MX_SPI3_Init(void) {
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52 hspi3.Instance = SPI3;
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53 hspi3.Init.Mode = SPI_MODE_MASTER;
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54 hspi3.Init.Direction = SPI_DIRECTION_2LINES;
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55 hspi3.Init.DataSize = SPI_DATASIZE_8BIT;
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56 hspi3.Init.CLKPolarity = SPI_POLARITY_HIGH;
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57 hspi3.Init.CLKPhase = SPI_PHASE_1EDGE;
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58 hspi3.Init.NSS = SPI_NSS_SOFT;
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59 hspi3.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;
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60 hspi3.Init.FirstBit = SPI_FIRSTBIT_MSB;
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61 hspi3.Init.TIMode = SPI_TIMODE_DISABLED;
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62 hspi3.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
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63 hspi3.Init.CRCPolynomial = 7;
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64 HAL_SPI_Init(&hspi3);
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65 }
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66
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67 void MX_SPI3_DeInit(void) {
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68 HAL_SPI_DeInit(&hspi3);
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69 }
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70
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71 uint8_t SPI3_ButtonAdjust(uint8_t *arrayInput, uint8_t *arrayOutput) {
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72 HAL_StatusTypeDef status;
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73 uint8_t answer[10];
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74 uint8_t rework[10];
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76 rework[0] = 0xFF;
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77 for (int i = 0; i < 3; i++) {
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78 // limiter
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79 if (arrayInput[i] == 0xFF)
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80 arrayInput[i] = 0xFE;
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81 if (arrayInput[i] >= 15) {
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82 // copy - ausl�se-schwelle
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83 rework[i + 1] = arrayInput[i];
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84 // wieder-scharf-schalte-schwelle
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85 rework[i + 3 + 1] = arrayInput[i] - 10;
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86 } else if (arrayInput[i] >= 10) {
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87 // copy - ausl�se-schwelle
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88 rework[i + 1] = arrayInput[i];
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89 // wieder-scharf-schalte-schwelle
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90 rework[i + 3 + 1] = arrayInput[i] - 5;
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91 } else {
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92 // copy - ausl�se-schwelle
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93 rework[i + 1] = 7;
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94 // wieder-scharf-schalte-schwelle
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95 rework[i + 3 + 1] = 6;
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96 }
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97 }
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99 status = HAL_OK; /* = 0 */
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100 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET);
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101 for (int i = 0; i < 7; i++) {
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102 HAL_Delay(10);
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103 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_RESET);
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104 HAL_Delay(10);
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105 status += HAL_SPI_TransmitReceive(&hspi3, &rework[i], &answer[i], 1,
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106 20);
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107 HAL_Delay(10);
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108 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET);
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109 }
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110
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111 if (status == HAL_OK) {
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112 for (int i = 0; i < 3; i++) {
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113 arrayOutput[i] = answer[i + 2]; // first not, return of 0xFF not
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114 }
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115 return 1;
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116 } else
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117
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118 return 0;
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119 }
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120
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121 // SPI5 init function
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122 void MX_SPI1_Init(void) {
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123 hspi1.Instance = SPI1;
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124 hspi1.Init.Mode = SPI_MODE_SLAVE;
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125 hspi1.Init.Direction = SPI_DIRECTION_2LINES;
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126 hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
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127 hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
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128 hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
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129 hspi1.Init.NSS = SPI_NSS_HARD_INPUT; //SPI_NSS_SOFT;
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130 hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8;
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131 hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
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132 hspi1.Init.TIMode = SPI_TIMODE_DISABLED;
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133 hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED; //_DISABLED; _ENABLED;
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134 hspi1.Init.CRCPolynomial = 7;
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135 HAL_SPI_Init(&hspi1);
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136 }
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137
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138 void MX_SPI_DeInit(void) {
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139 HAL_SPI_DeInit(&hspi1);
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140 }
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141
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142 void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi) {
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143
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144 GPIO_InitTypeDef GPIO_InitStruct;
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145
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146 if (hspi->Instance == SPI1) {
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147 // Peripheral clock enable
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148 __SPI1_CLK_ENABLE();
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149 __GPIOA_CLK_ENABLE();
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150 //SPI1 GPIO Configuration
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151 //PA4 ------> SPI1_CS
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152 //PA5 ------> SPI1_SCK
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153 //PA6 ------> SPI1_MISO
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154 //PA7 ------> SPI1_MOSI
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155
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156 GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7;
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157 // GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
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158 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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159 GPIO_InitStruct.Pull = GPIO_PULLUP;
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160 GPIO_InitStruct.Speed = GPIO_SPEED_MEDIUM;
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161 GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
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162 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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163
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164 //##-3- Configure the DMA streams ##########################################
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165 // Configure the DMA handler for Transmission process
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166 hdma_tx.Instance = DMA2_Stream3;
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167 hdma_tx.Init.Channel = DMA_CHANNEL_3;
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168 hdma_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
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169 hdma_tx.Init.PeriphInc = DMA_PINC_DISABLE;
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170 hdma_tx.Init.MemInc = DMA_MINC_ENABLE;
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171 hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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172 hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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173 hdma_tx.Init.Mode = DMA_NORMAL;
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174 hdma_tx.Init.Priority = DMA_PRIORITY_VERY_HIGH;
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175 hdma_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
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176 hdma_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
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177 hdma_tx.Init.MemBurst = DMA_MBURST_INC4;
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178 hdma_tx.Init.PeriphBurst = DMA_PBURST_INC4;
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179
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180 HAL_DMA_Init(&hdma_tx);
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181
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182 // Associate the initialized DMA handle to the the SPI handle
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183 __HAL_LINKDMA(hspi, hdmatx, hdma_tx);
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184
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185 // Configure the DMA handler for Transmission process
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186 hdma_rx.Instance = DMA2_Stream0;
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187 hdma_rx.Init.Channel = DMA_CHANNEL_3;
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188 hdma_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
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189 hdma_rx.Init.PeriphInc = DMA_PINC_DISABLE;
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190 hdma_rx.Init.MemInc = DMA_MINC_ENABLE;
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191 hdma_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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192 hdma_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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193 hdma_rx.Init.Mode = DMA_NORMAL;
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194 hdma_rx.Init.Priority = DMA_PRIORITY_HIGH;
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195 hdma_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
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196 hdma_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
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197 hdma_rx.Init.MemBurst = DMA_MBURST_INC4;
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198 hdma_rx.Init.PeriphBurst = DMA_PBURST_INC4;
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199
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200 HAL_DMA_Init(&hdma_rx);
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201
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202 // Associate the initialized DMA handle to the the SPI handle
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203 __HAL_LINKDMA(hspi, hdmarx, hdma_rx);
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204
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205 //##-4- Configure the NVIC for DMA #########################################
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206 //NVIC configuration for DMA transfer complete interrupt (SPI3_RX)
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207 HAL_NVIC_SetPriority(DMA2_Stream0_IRQn, 1, 0);
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208 HAL_NVIC_EnableIRQ(DMA2_Stream0_IRQn);
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209
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210 // NVIC configuration for DMA transfer complete interrupt (SPI1_TX)
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211 HAL_NVIC_SetPriority(DMA2_Stream3_IRQn, 1, 1);
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212 HAL_NVIC_EnableIRQ(DMA2_Stream3_IRQn);
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213 } else if (hspi->Instance == SPI3) {
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214 __GPIOC_CLK_ENABLE();
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215 __SPI3_CLK_ENABLE();
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216
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217 //SPI1 GPIO Configuration
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218 //PC10 ------> SPI3_SCK
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219 //PC11 ------> SPI3_MISO
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220 //PC12 ------> SPI3_MOSI
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221 //PA15 ------> SPI3_NSS (official)
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222 //PC9 ------> SPI3_NSS (hw)
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223
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224 GPIO_InitStruct.Pin = GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12;
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225 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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226 GPIO_InitStruct.Pull = GPIO_PULLUP;
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227 GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
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228 GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
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229 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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230
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231 GPIO_InitStruct.Pin = GPIO_PIN_9;
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232 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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233 GPIO_InitStruct.Pull = GPIO_PULLUP;
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234 GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
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235 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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236
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237 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET);
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238 }
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239 }
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240
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241 void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi) {
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242 if (hspi->Instance == SPI1) {
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243 __SPI1_FORCE_RESET();
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244 __SPI1_RELEASE_RESET();
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245
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246 //SPI1 GPIO Configuration
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247 //PA5 ------> SPI1_SCK
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248 //PA6 ------> SPI1_MISO
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249 //PA7 ------> SPI1_MOSI
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250
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251 HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7);
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252
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253 HAL_DMA_DeInit(&hdma_tx);
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254 HAL_DMA_DeInit(&hdma_rx);
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255
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256 HAL_NVIC_DisableIRQ(DMA2_Stream3_IRQn);
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257 HAL_NVIC_DisableIRQ(DMA2_Stream0_IRQn);
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258 } else if (hspi->Instance == SPI3) {
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259 __SPI3_FORCE_RESET();
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260 __SPI3_RELEASE_RESET();
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261
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262 //SPI1 GPIO Configuration
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263 //PC10 ------> SPI3_SCK
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264 //PC11 ------> SPI3_MISO
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265 //PC12 ------> SPI3_MOSI
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266 //PA15 ------> SPI3_NSS (official)
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267 //PC9 ------> SPI3_NSS (hw)
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268 HAL_GPIO_DeInit(GPIOC, GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12);
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269 }
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270 }
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271
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272 void SPI_synchronize_with_Master(void) {
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273 // GPIO_InitTypeDef GPIO_InitStruct;
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274 //
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275 // __GPIOA_CLK_ENABLE();
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276 // /**SPI1 GPIO Configuration
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277 // PA5 ------> SPI1_SCK
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278 // */
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279 // GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5;
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280 // GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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281 // GPIO_InitStruct.Pull = GPIO_PULLUP;
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282 // GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
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283 // HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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284 //
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285 // HAL_Delay(10);
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286 // while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_4) == 0);
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287 // HAL_Delay(10);
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288 // while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_5) == 1);
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289 // HAL_Delay(20);
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290 }
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291
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292 void SPI_Start_single_TxRx_with_Master(void) {
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293 uint8_t * pOutput;
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294
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295 if (global.dataSendToSlave.getDeviceDataNow) {
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296 global.dataSendToSlave.getDeviceDataNow = 0;
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297 pOutput = (uint8_t*) &(global.deviceDataSendToMaster);
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298 } else {
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299 pOutput = (uint8_t*) &(global.dataSendToMaster);
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300 }
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301
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302 if (HAL_SPI_TransmitReceive_DMA(&hspi1, pOutput,(uint8_t*) &(global.dataSendToSlave), EXCHANGE_BUFFERSIZE)!= HAL_OK) {
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303 // Transfer error in transmission process
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304 SPI_Error_Handler();
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305 }
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306 }
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307
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308 void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi) {
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309 /* restart SPI */
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310 if (hspi == &hspi1) {
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311
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312 global.check_sync_not_running = 0;
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313 /* stop data exchange? */
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314 if (global.mode == MODE_SHUTDOWN) {
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315 global.mode = MODE_SLEEP;
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316 global.dataSendToSlavePending = 0;
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317 global.dataSendToSlaveIsValid = 1;
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318 global.dataSendToSlaveIsNotValidCount = 0;
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319 return;
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320 }
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321
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322 /* data consistent? */
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323 if (SPI_check_header_and_footer_ok()) {
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324 // GPIO_new_DEBUG_HIGH(); //For debug.
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325 global.dataSendToSlaveIsValid = 1;
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326 global.dataSendToSlaveIsNotValidCount = 0;
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327 } else {
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328 // GPIO_new_DEBUG_LOW(); //For debug.
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329 global.dataSendToSlaveIsValid = 0;
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330 global.dataSendToSlaveIsNotValidCount++;
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331 MX_SPI_DeInit();
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332 HAL_Delay(30);
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333 MX_DMA_Init();
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334 MX_SPI1_Init();
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335 }
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336 global.dataSendToMaster.power_on_reset = 0;
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337 global.deviceDataSendToMaster.power_on_reset = 0;
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338
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339 //TODO:REMOVE
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340 // if ( !global.dataSendToSlaveStopEval ) {
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341 // scheduleSpecial_Evaluate_DataSendToSlave();
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342 // }
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343 scheduleSpecial_Evaluate_DataSendToSlave();
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344 SPI_Start_single_TxRx_with_Master(); //Send data always.
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345 }
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346 }
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347
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348 static uint8_t SPI_check_header_and_footer_ok(void) {
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349 if (global.dataSendToSlave.header.checkCode[0] != 0xBB)
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350 return 0;
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351 if (global.dataSendToSlave.header.checkCode[1] != 0x01)
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352 return 0;
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353 if (global.dataSendToSlave.header.checkCode[2] != 0x01)
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354 return 0;
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355 if (global.dataSendToSlave.header.checkCode[3] != 0xBB)
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356 return 0;
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357 if (global.dataSendToSlave.footer.checkCode[0] != 0xF4)
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358 return 0;
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359 if (global.dataSendToSlave.footer.checkCode[1] != 0xF3)
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360 return 0;
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361 if (global.dataSendToSlave.footer.checkCode[2] != 0xF2)
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362 return 0;
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363 if (global.dataSendToSlave.footer.checkCode[3] != 0xF1)
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364 return 0;
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365
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366 return 1;
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367 }
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368
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369 static void SPI_Error_Handler(void) {
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370 //The device is locks. Hard to recover.
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371 // while(1)
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372 // {
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373 // }
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374 }
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375
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376 /**
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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 * @}
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382 */
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383
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384 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/