annotate Small_CPU/Src/spi.c @ 173:05c770dc2911 max-depth

Bugfix: make max depth move with current depth (part 1) The display in dive mode of the max depth was updated before the actual depth, which looks very strange. The reason for this was conceptually simple. The depth value was averaged over a set of depth samples, but the current depth was only taken from the current sample. So, per definition, on an initial descend, the current depth is always bigger (deeper) than any average from previous shallower samples. This part 1 commit introduces a new function that is used immediate after reception of the new sample from the RTE. This function does the trivial average of a set of samples. Notice that also the surface and ambient mbar pressures are taken into account (which are used heavily over the entire code). This is a consistency thing. We should base any further calculation from the data presented in the UI, instead of presenting A, and use A' for further calculations. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Mon, 11 Mar 2019 19:48:57 +0100
parents ee744c7160ce
children 9fc06e1e0f66
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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
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24 #include "global_constants.h"
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25 #include "spi.h"
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26 #include "dma.h"
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27
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28 //#include "gpio.h"
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30 /* USER CODE BEGIN 0 */
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31 #include "scheduler.h"
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32
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33 #ifdef DEBUG_GPIO
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34 extern void GPIO_new_DEBUG_LOW(void);
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35 extern void GPIO_new_DEBUG_HIGH(void);
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36 #endif
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37
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38 // SPI header by index used for synchronization check (package sequence counter)
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39 #define SPI_HEADER_INDEX_MASTER 1
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40 #define SPI_HEADER_INDEX_SLAVE 2
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41
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42 uint8_t data_error = 0;
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43 uint32_t data_error_time = 0;
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44 uint8_t SPIDataRX = 0; /* Flag to signal that SPI RX callback has been triggered */
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45
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46 extern void HardSyncToSPI(void);
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47 static void SPI_Error_Handler(void);
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48
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49 /* USER CODE END 0 */
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50
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51 static uint8_t SPI_check_header_and_footer_ok(void);
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52 static uint8_t DataEX_check_header_and_footer_shifted(void);
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53
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54 SPI_HandleTypeDef hspi1;
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55 SPI_HandleTypeDef hspi3;
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56
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57 DMA_HandleTypeDef hdma_tx;
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58 DMA_HandleTypeDef hdma_rx;
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59
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60 // SPI3 init function
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61 void MX_SPI3_Init(void) {
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62 hspi3.Instance = SPI3;
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63 hspi3.Init.Mode = SPI_MODE_MASTER;
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64 hspi3.Init.Direction = SPI_DIRECTION_2LINES;
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65 hspi3.Init.DataSize = SPI_DATASIZE_8BIT;
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66 hspi3.Init.CLKPolarity = SPI_POLARITY_HIGH;
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67 hspi3.Init.CLKPhase = SPI_PHASE_1EDGE;
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68 hspi3.Init.NSS = SPI_NSS_SOFT;
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69 hspi3.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;
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70 hspi3.Init.FirstBit = SPI_FIRSTBIT_MSB;
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71 hspi3.Init.TIMode = SPI_TIMODE_DISABLED;
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72 hspi3.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
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73 hspi3.Init.CRCPolynomial = 7;
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74 HAL_SPI_Init(&hspi3);
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75 }
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76
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77 void MX_SPI3_DeInit(void) {
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78 HAL_SPI_DeInit(&hspi3);
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79 }
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80
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81 uint8_t SPI3_ButtonAdjust(uint8_t *arrayInput, uint8_t *arrayOutput) {
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82 HAL_StatusTypeDef status;
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83 uint8_t answer[10];
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84 uint8_t rework[10];
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85
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86 rework[0] = 0xFF;
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87 for (int i = 0; i < 3; i++) {
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88 // limiter
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89 if (arrayInput[i] == 0xFF)
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90 arrayInput[i] = 0xFE;
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91 if (arrayInput[i] >= 15) {
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92 // copy - ausl�se-schwelle
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93 rework[i + 1] = arrayInput[i];
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94 // wieder-scharf-schalte-schwelle
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95 rework[i + 3 + 1] = arrayInput[i] - 10;
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96 } else if (arrayInput[i] >= 10) {
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97 // copy - ausl�se-schwelle
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98 rework[i + 1] = arrayInput[i];
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99 // wieder-scharf-schalte-schwelle
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100 rework[i + 3 + 1] = arrayInput[i] - 5;
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101 } else {
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102 // copy - ausl�se-schwelle
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103 rework[i + 1] = 7;
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104 // wieder-scharf-schalte-schwelle
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105 rework[i + 3 + 1] = 6;
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106 }
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107 }
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109 status = HAL_OK; /* = 0 */
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110 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET);
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111 for (int i = 0; i < 7; i++) {
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112 HAL_Delay(10);
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113 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_RESET);
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114 HAL_Delay(10);
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115 status += HAL_SPI_TransmitReceive(&hspi3, &rework[i], &answer[i], 1,
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116 20);
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117 HAL_Delay(10);
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118 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET);
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119 }
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120
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121 if (status == HAL_OK) {
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122 for (int i = 0; i < 3; i++) {
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123 arrayOutput[i] = answer[i + 2]; // first not, return of 0xFF not
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124 }
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125 return 1;
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126 } else
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127
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128 return 0;
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129 }
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130
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131 // SPI5 init function
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132 void MX_SPI1_Init(void) {
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133 hspi1.Instance = SPI1;
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134 hspi1.Init.Mode = SPI_MODE_SLAVE;
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135 hspi1.Init.Direction = SPI_DIRECTION_2LINES;
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136 hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
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137 hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
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138 hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
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139 hspi1.Init.NSS = SPI_NSS_HARD_INPUT; //SPI_NSS_SOFT;
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140 hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_128;
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141 hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
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142 hspi1.Init.TIMode = SPI_TIMODE_DISABLED;
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143 hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED; //_DISABLED; _ENABLED;
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144 hspi1.Init.CRCPolynomial = 7;
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145 HAL_SPI_Init(&hspi1);
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146 }
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147
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148 void MX_SPI_DeInit(void) {
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149 HAL_SPI_DeInit(&hspi1);
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150 }
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151
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152 void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi) {
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153
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154 GPIO_InitTypeDef GPIO_InitStruct;
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155
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156 if (hspi->Instance == SPI1) {
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157 SPIDataRX = 0;
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158 // Peripheral clock enable
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159 __SPI1_CLK_ENABLE();
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160 __GPIOA_CLK_ENABLE();
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161 //SPI1 GPIO Configuration
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162 //PA4 ------> SPI1_CS
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163 //PA5 ------> SPI1_SCK
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164 //PA6 ------> SPI1_MISO
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165 //PA7 ------> SPI1_MOSI
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166
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167 GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7;
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168 // GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
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169 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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170 GPIO_InitStruct.Pull = GPIO_PULLUP;
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171 GPIO_InitStruct.Speed = GPIO_SPEED_FAST; /* Decision is based on errata which recommends FAST for GPIO at 90Mhz */
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172 GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
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173 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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174
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175 //##-3- Configure the DMA streams ##########################################
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176 // Configure the DMA handler for Transmission process
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177 hdma_tx.Instance = DMA2_Stream3;
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178 hdma_tx.Init.Channel = DMA_CHANNEL_3;
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179 hdma_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
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180 hdma_tx.Init.PeriphInc = DMA_PINC_DISABLE;
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181 hdma_tx.Init.MemInc = DMA_MINC_ENABLE;
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182 hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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183 hdma_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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184 hdma_tx.Init.Mode = DMA_NORMAL;
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185 hdma_tx.Init.Priority = DMA_PRIORITY_VERY_HIGH;
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186 hdma_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
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187 hdma_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
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188 hdma_tx.Init.MemBurst = DMA_MBURST_INC4;
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189 hdma_tx.Init.PeriphBurst = DMA_PBURST_INC4;
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190
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191 HAL_DMA_Init(&hdma_tx);
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192
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193 // Associate the initialized DMA handle to the the SPI handle
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194 __HAL_LINKDMA(hspi, hdmatx, hdma_tx);
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195
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196 // Configure the DMA handler for Transmission process
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197 hdma_rx.Instance = DMA2_Stream0;
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198 hdma_rx.Init.Channel = DMA_CHANNEL_3;
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199 hdma_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
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200 hdma_rx.Init.PeriphInc = DMA_PINC_DISABLE;
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201 hdma_rx.Init.MemInc = DMA_MINC_ENABLE;
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202 hdma_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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203 hdma_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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204 hdma_rx.Init.Mode = DMA_NORMAL;
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205 hdma_rx.Init.Priority = DMA_PRIORITY_HIGH;
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206 hdma_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
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207 hdma_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
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208 hdma_rx.Init.MemBurst = DMA_MBURST_INC4;
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209 hdma_rx.Init.PeriphBurst = DMA_PBURST_INC4;
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210
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211 HAL_DMA_Init(&hdma_rx);
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212
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213 // Associate the initialized DMA handle to the the SPI handle
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214 __HAL_LINKDMA(hspi, hdmarx, hdma_rx);
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215
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216 //##-4- Configure the NVIC for DMA #########################################
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217 //NVIC configuration for DMA transfer complete interrupt (SPI3_RX)
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218 HAL_NVIC_SetPriority(DMA2_Stream0_IRQn, 1, 0);
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219 HAL_NVIC_EnableIRQ(DMA2_Stream0_IRQn);
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220
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221 // NVIC configuration for DMA transfer complete interrupt (SPI1_TX)
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222 HAL_NVIC_SetPriority(DMA2_Stream3_IRQn, 1, 1);
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223 HAL_NVIC_EnableIRQ(DMA2_Stream3_IRQn);
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224 } else if (hspi->Instance == SPI3) {
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225 __GPIOC_CLK_ENABLE();
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226 __SPI3_CLK_ENABLE();
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227
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228 //SPI1 GPIO Configuration
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229 //PC10 ------> SPI3_SCK
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230 //PC11 ------> SPI3_MISO
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231 //PC12 ------> SPI3_MOSI
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232 //PA15 ------> SPI3_NSS (official)
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233 //PC9 ------> SPI3_NSS (hw)
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234
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235 GPIO_InitStruct.Pin = GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12;
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236 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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237 GPIO_InitStruct.Pull = GPIO_PULLUP;
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238 GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
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239 GPIO_InitStruct.Alternate = GPIO_AF6_SPI3;
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240 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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241
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242 GPIO_InitStruct.Pin = GPIO_PIN_9;
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243 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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244 GPIO_InitStruct.Pull = GPIO_PULLUP;
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245 GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
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246 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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247
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248 HAL_GPIO_WritePin(GPIOC, GPIO_PIN_9, GPIO_PIN_SET);
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249 }
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250 }
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251
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252 void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi) {
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253 if (hspi->Instance == SPI1) {
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254 __SPI1_FORCE_RESET();
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255 __SPI1_RELEASE_RESET();
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256
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257 //SPI1 GPIO Configuration
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258 //PA5 ------> SPI1_SCK
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259 //PA6 ------> SPI1_MISO
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260 //PA7 ------> SPI1_MOSI
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261
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262 HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7);
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263
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264 HAL_DMA_DeInit(&hdma_tx);
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265 HAL_DMA_DeInit(&hdma_rx);
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266
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267 HAL_NVIC_DisableIRQ(DMA2_Stream3_IRQn);
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268 HAL_NVIC_DisableIRQ(DMA2_Stream0_IRQn);
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269 } else if (hspi->Instance == SPI3) {
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270 __SPI3_FORCE_RESET();
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271 __SPI3_RELEASE_RESET();
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272
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273 //SPI1 GPIO Configuration
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274 //PC10 ------> SPI3_SCK
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275 //PC11 ------> SPI3_MISO
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276 //PC12 ------> SPI3_MOSI
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277 //PA15 ------> SPI3_NSS (official)
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278 //PC9 ------> SPI3_NSS (hw)
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279 HAL_GPIO_DeInit(GPIOC, GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12);
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280 }
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281 }
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282
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283 void SPI_synchronize_with_Master(void) {
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284 #ifdef USE_OLD_SYNC_METHOD
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285 GPIO_InitTypeDef GPIO_InitStruct;
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286 //
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287 __GPIOA_CLK_ENABLE();
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288 /**SPI1 GPIO Configuration
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289 PA5 ------> SPI1_SCK
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290 */
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291 GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5;
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292 GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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293 GPIO_InitStruct.Pull = GPIO_PULLUP;
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294 GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
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295 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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296 //
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297 HAL_Delay(10);
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298 while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_4) == 0);
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299 HAL_Delay(10);
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300 while (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_5) == 1);
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301 HAL_Delay(50);
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302 #endif
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303 }
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304
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305 void SPI_Start_single_TxRx_with_Master(void) {
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306 uint8_t * pOutput;
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307 HAL_StatusTypeDef retval;
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308
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309 if (global.dataSendToSlave.getDeviceDataNow) {
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310 global.dataSendToSlave.getDeviceDataNow = 0;
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311 pOutput = (uint8_t*) &(global.deviceDataSendToMaster);
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312 } else {
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313 pOutput = (uint8_t*) &(global.dataSendToMaster);
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314 }
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315 retval = HAL_SPI_TransmitReceive_DMA(&hspi1, pOutput,(uint8_t*) &(global.dataSendToSlave), EXCHANGE_BUFFERSIZE);
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316 if ( retval!= HAL_OK) {
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317 SPI_Error_Handler();
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318 }
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319 }
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320
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321 void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi) {
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322 /* restart SPI */
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323 if (hspi == &hspi1)
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324 {
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325 HardSyncToSPI();
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326 SPIDataRX = 1;
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327
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328 global.check_sync_not_running = 0;
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329 /* stop data exchange? */
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330 if (global.mode == MODE_SHUTDOWN) {
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331 global.mode = MODE_SLEEP;
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332 global.dataSendToSlavePending = 0;
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333 global.dataSendToSlaveIsValid = 1;
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334 global.dataSendToSlaveIsNotValidCount = 0;
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335 }
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336 }
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337 }
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338
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339 void SPI_Evaluate_RX_Data()
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340 {
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341 if ((global.mode != MODE_SHUTDOWN) && ( global.mode != MODE_SLEEP) && (SPIDataRX))
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342 {
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343 SPIDataRX = 0;
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344 /* data consistent? */
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345 if (SPI_check_header_and_footer_ok()) {
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346 // GPIO_new_DEBUG_HIGH(); //For debug.
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347 global.dataSendToSlaveIsValid = 1;
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348 global.dataSendToSlaveIsNotValidCount = 0;
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349 /* use sequence index from master to indicate correct reception */
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350 if(global.dataSendToSlave.header.checkCode[SPI_HEADER_INDEX_SLAVE] > 0x7F)
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351 {
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352 HAL_SPI_Abort_IT(&hspi1);
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353 global.dataSendToMaster.header.checkCode[SPI_HEADER_INDEX_SLAVE] = global.dataSendToSlave.header.checkCode[SPI_HEADER_INDEX_MASTER];
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354 global.dataSendToSlave.header.checkCode[SPI_HEADER_INDEX_SLAVE] = 0;
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355 }
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356 else
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357 {
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358 global.dataSendToMaster.header.checkCode[SPI_HEADER_INDEX_SLAVE] = global.dataSendToSlave.header.checkCode[SPI_HEADER_INDEX_MASTER];
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359 }
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360 } else {
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361 // GPIO_new_DEBUG_LOW(); //For debug.
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362 global.dataSendToSlaveIsValid = 0;
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363 global.dataSendToSlaveIsNotValidCount++;
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364 if(DataEX_check_header_and_footer_shifted())
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365 {
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366 if (global.dataSendToSlaveIsNotValidCount == 1)
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367 {
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368 HAL_SPI_Abort_IT(&hspi1); /* reset DMA only once */
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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 global.dataSendToMaster.power_on_reset = 0;
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374 global.deviceDataSendToMaster.power_on_reset = 0;
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375
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376 //TODO:REMOVE
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377 // if ( !global.dataSendToSlaveStopEval ) {
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378 // scheduleSpecial_Evaluate_DataSendToSlave();
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379 // }
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380 scheduleSpecial_Evaluate_DataSendToSlave();
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381
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382 SPI_Start_single_TxRx_with_Master(); //Send data always.
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383 }
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384 }
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385
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386 static uint8_t SPI_check_header_and_footer_ok(void) {
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387 if (global.dataSendToSlave.header.checkCode[0] != 0xBB)
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388 return 0;
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389 #ifdef USE_OLD_HEADER_FORMAT
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390 if (global.dataSendToSlave.header.checkCode[1] != 0x01)
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391 return 0;
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392 if (global.dataSendToSlave.header.checkCode[2] != 0x01)
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393 return 0;
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394 #endif
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395 if (global.dataSendToSlave.header.checkCode[3] != 0xBB)
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396 return 0;
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397 if (global.dataSendToSlave.footer.checkCode[0] != 0xF4)
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398 return 0;
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399 if (global.dataSendToSlave.footer.checkCode[1] != 0xF3)
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400 return 0;
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401 if (global.dataSendToSlave.footer.checkCode[2] != 0xF2)
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402 return 0;
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403 if (global.dataSendToSlave.footer.checkCode[3] != 0xF1)
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404 return 0;
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405
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406 return 1;
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407 }
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408
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409
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410 /* Check if there is an empty frame providec by RTE (all 0) or even no data provided by RTE (all 0xFF)
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411 * If that is not the case the DMA is somehow not in sync
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412 */
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413 uint8_t DataEX_check_header_and_footer_shifted()
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414 {
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415 uint8_t ret = 1;
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416 if((global.dataSendToSlave.footer.checkCode[0] == 0x00)
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417 && (global.dataSendToSlave.footer.checkCode[1] == 0x00)
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418 && (global.dataSendToSlave.footer.checkCode[2] == 0x00)
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419 && (global.dataSendToSlave.footer.checkCode[3] == 0x00)) { ret = 0; }
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420
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421 if((global.dataSendToSlave.footer.checkCode[0] == 0xff)
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422 && (global.dataSendToSlave.footer.checkCode[1] == 0xff)
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423 && (global.dataSendToSlave.footer.checkCode[2] == 0xff)
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424 && (global.dataSendToSlave.footer.checkCode[3] == 0xff)) { ret = 0; }
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425
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426 return ret;
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427 }
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428
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429 static void SPI_Error_Handler(void) {
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430 //The device is locks. Hard to recover.
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431 // while(1)
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432 // {
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433 // }
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434 }
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435
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436 /**
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437 * @}
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438 */
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439
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440 /**
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441 * @}
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442 */
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443
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444 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/