1 | /* USER CODE BEGIN Header */
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2 | /**
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3 | ******************************************************************************
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4 | * @file : main.c
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5 | * @brief : Main program body
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6 | ******************************************************************************
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7 | * @attention
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8 | *
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9 | * Copyright (c) 2023 STMicroelectronics.
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10 | * All rights reserved.
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11 | *
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12 | * This software is licensed under terms that can be found in the LICENSE file
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13 | * in the root directory of this software component.
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14 | * If no LICENSE file comes with this software, it is provided AS-IS.
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15 | *
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16 | ******************************************************************************
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17 | */
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18 | /* USER CODE END Header */
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19 | /* Includes ------------------------------------------------------------------*/
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20 | #include "main.h"
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21 |
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22 | /* Private includes ----------------------------------------------------------*/
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23 | /* USER CODE BEGIN Includes */
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24 | #include "string.h"
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25 | /* USER CODE END Includes */
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26 |
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27 | /* Private typedef -----------------------------------------------------------*/
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28 | /* USER CODE BEGIN PTD */
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29 |
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30 | /* USER CODE END PTD */
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31 |
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32 | /* Private define ------------------------------------------------------------*/
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33 | /* USER CODE BEGIN PD */
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34 |
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35 | /* USER CODE END PD */
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36 |
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37 | /* Private macro -------------------------------------------------------------*/
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38 | /* USER CODE BEGIN PM */
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39 |
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40 | /* USER CODE END PM */
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41 |
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42 | /* Private variables ---------------------------------------------------------*/
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43 | UART_HandleTypeDef huart2;
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44 | DMA_HandleTypeDef hdma_usart2_rx;
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45 | DMA_HandleTypeDef hdma_usart2_tx;
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46 |
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47 | /* USER CODE BEGIN PV */
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48 |
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49 | /* USER CODE END PV */
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50 |
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51 | /* Private function prototypes -----------------------------------------------*/
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52 | void SystemClock_Config(void);
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53 | static void MX_GPIO_Init(void);
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54 | static void MX_DMA_Init(void);
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55 | static void MX_USART2_UART_Init(void);
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56 | /* USER CODE BEGIN PFP */
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57 |
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58 | /* USER CODE END PFP */
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59 |
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60 | /* Private user code ---------------------------------------------------------*/
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61 | /* USER CODE BEGIN 0 */
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62 |
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63 |
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64 | #define RxBuf_Size 10
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65 | #define MainBuf_Size 20
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66 |
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67 | uint8_t RxBuf[RxBuf_Size];
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68 | uint8_t MainBuf[MainBuf_Size];
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69 |
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70 | void HAL_UARTEx_RxEventCallback( UART_HandleTypeDef *huart, uint16_t Size ){
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71 |
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72 | //if(huart -> Instance == USART2 ){
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73 | for(int i=0;i < sizeof(MainBuf) ; i++){
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74 | MainBuf[i] = '0';
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75 | }
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76 |
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77 | memcpy ( MainBuf, RxBuf, Size );
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78 |
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79 | for(int i=0;i < Size ; i++){
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80 | RxBuf[i] = '0';
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81 | }
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82 | HAL_UARTEx_ReceiveToIdle_DMA(&huart2, RxBuf, RxBuf_Size);
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83 | __HAL_DMA_DISABLE_IT(&hdma_usart2_rx,DMA_IT_HT);
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84 |
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85 | //}
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86 |
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87 | }
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88 |
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89 |
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90 | /* USER CODE END 0 */
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91 |
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92 | /**
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93 | * @brief The application entry point.
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94 | * @retval int
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95 | */
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96 | int main(void)
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97 | {
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98 | int flag =0;
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99 | int flag2 =0;
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100 | int iState =0;
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101 |
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102 |
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103 | uint32_t t1;
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104 | uint32_t t2;
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105 | uint32_t dt;
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106 |
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107 |
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108 | /* USER CODE BEGIN 1 */
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109 |
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110 | /* USER CODE END 1 */
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111 |
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112 | /* MCU Configuration--------------------------------------------------------*/
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113 |
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114 | /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
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115 | HAL_Init();
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116 |
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117 | /* USER CODE BEGIN Init */
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118 |
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119 | /* USER CODE END Init */
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120 |
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121 | /* Configure the system clock */
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122 | SystemClock_Config();
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123 |
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124 | /* USER CODE BEGIN SysInit */
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125 |
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126 | /* USER CODE END SysInit */
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127 |
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128 | /* Initialize all configured peripherals */
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129 | MX_GPIO_Init();
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130 | MX_DMA_Init();
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131 | MX_USART2_UART_Init();
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132 | /* USER CODE BEGIN 2 */
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133 |
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134 |
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135 | HAL_UARTEx_ReceiveToIdle_DMA(&huart2, RxBuf, RxBuf_Size);
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136 |
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137 |
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138 | __HAL_DMA_DISABLE_IT(&hdma_usart2_rx,DMA_IT_HT);
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139 |
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140 | HAL_UART_Transmit_DMA(&huart2, "Hallo", 5);
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141 |
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142 |
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143 | /* USER CODE END 2 */
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144 |
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145 | /* Infinite loop */
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146 | /* USER CODE BEGIN WHILE */
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147 | while (1)
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148 | {
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149 |
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150 | switch(iState){
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151 |
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152 | case 0:
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153 |
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154 | HAL_UART_Transmit_DMA(&huart2, "Welcome! \n\r", 15);
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155 |
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156 | iState = 5;
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157 |
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158 | break;
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159 |
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160 | case 5:
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161 |
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162 | HAL_UART_Transmit_DMA(&huart2, "Step:5 \n\r", 15);
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163 |
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164 | iState = 10;
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165 |
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166 | break;
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167 |
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168 | case 10:
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169 |
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170 | t1 = HAL_GetTick();
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171 |
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172 | iState = 15;
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173 |
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174 | break;
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175 |
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176 | case 15:
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177 |
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178 |
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179 |
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180 | HAL_UART_Transmit_DMA(&huart2, "Waiting... \n\r", 15);
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181 |
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182 |
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183 | iState = 20;
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184 |
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185 | break;
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186 |
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187 | case 20:
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188 |
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189 |
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190 | t2 = HAL_GetTick();
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191 |
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192 | dt = t2-t1;
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193 |
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194 | if(dt > 10000){
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195 | iState = 25;
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196 | }
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197 |
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198 | break;
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199 |
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200 | case 25:
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201 |
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202 |
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203 |
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204 | HAL_UART_Transmit_DMA(&huart2, "Choose >1< \n\r", 15);
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205 | //HAL_UART_Transmit(&huart2, "Choose >1< \n\r", 15, 1000);
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206 |
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207 | iState = 30;
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208 | break;
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209 |
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210 | case 30:
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211 |
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212 | //HAL_UART_Transmit_DMA(&huart2, "Step:3 \n\r", 15);
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213 |
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214 | if(MainBuf[0] == '1'){
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215 | iState = 300;
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216 | }
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217 |
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218 | //xUartRcvDatProcessed = 1;
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219 |
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220 | break;
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221 | case 300:
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222 | HAL_UART_Transmit_DMA(&huart2, "Step:300 \n\r", 15);
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223 |
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224 | //HAL_UART_Transmit(&huart2, "Works! \n\r", 15,1000);
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225 |
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226 | iState = 500;
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227 |
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228 | break;
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229 |
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230 | case 500:
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231 |
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232 | HAL_UART_Transmit_DMA(&huart2, "Step:500 \n\r", 15);
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233 |
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234 | iState = 501;
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235 |
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236 | break;
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237 |
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238 | case 501:
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239 | break;
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240 |
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241 | }
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242 |
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243 |
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244 |
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245 | /* USER CODE END WHILE */
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246 |
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247 | /* USER CODE BEGIN 3 */
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248 | }
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249 | /* USER CODE END 3 */
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250 | }
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251 |
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252 | /**
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253 | * @brief System Clock Configuration
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254 | * @retval None
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255 | */
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256 | void SystemClock_Config(void)
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257 | {
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258 | RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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259 | RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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260 | RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
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261 |
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262 | /** Initializes the RCC Oscillators according to the specified parameters
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263 | * in the RCC_OscInitTypeDef structure.
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264 | */
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265 | RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48;
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266 | RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
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267 | RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
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268 | if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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269 | {
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270 | Error_Handler();
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271 | }
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272 |
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273 | /** Initializes the CPU, AHB and APB buses clocks
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274 | */
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275 | RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
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276 | |RCC_CLOCKTYPE_PCLK1;
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277 | RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI48;
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278 | RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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279 | RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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280 |
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281 | if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
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282 | {
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283 | Error_Handler();
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284 | }
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285 | PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2;
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286 | PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
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287 | if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
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288 | {
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289 | Error_Handler();
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290 | }
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291 | }
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292 |
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293 | /**
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294 | * @brief USART2 Initialization Function
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295 | * @param None
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296 | * @retval None
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297 | */
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298 | static void MX_USART2_UART_Init(void)
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299 | {
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300 |
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301 | /* USER CODE BEGIN USART2_Init 0 */
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302 |
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303 | /* USER CODE END USART2_Init 0 */
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304 |
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305 | /* USER CODE BEGIN USART2_Init 1 */
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306 |
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307 | /* USER CODE END USART2_Init 1 */
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308 | huart2.Instance = USART2;
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309 | huart2.Init.BaudRate = 9600;
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310 | huart2.Init.WordLength = UART_WORDLENGTH_8B;
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311 | huart2.Init.StopBits = UART_STOPBITS_1;
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312 | huart2.Init.Parity = UART_PARITY_NONE;
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313 | huart2.Init.Mode = UART_MODE_TX_RX;
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314 | huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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315 | huart2.Init.OverSampling = UART_OVERSAMPLING_16;
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316 | huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
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317 | huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
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318 | if (HAL_UART_Init(&huart2) != HAL_OK)
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319 | {
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320 | Error_Handler();
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321 | }
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322 | /* USER CODE BEGIN USART2_Init 2 */
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323 |
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324 | /* USER CODE END USART2_Init 2 */
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325 |
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326 | }
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327 |
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328 | /**
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329 | * Enable DMA controller clock
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330 | */
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331 | static void MX_DMA_Init(void)
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332 | {
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333 |
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334 | /* DMA controller clock enable */
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335 | __HAL_RCC_DMA1_CLK_ENABLE();
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336 |
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337 | /* DMA interrupt init */
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338 | /* DMA1_Channel4_5_6_7_IRQn interrupt configuration */
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339 | HAL_NVIC_SetPriority(DMA1_Channel4_5_6_7_IRQn, 0, 0);
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340 | HAL_NVIC_EnableIRQ(DMA1_Channel4_5_6_7_IRQn);
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341 |
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342 | }
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343 |
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344 | /**
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345 | * @brief GPIO Initialization Function
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346 | * @param None
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347 | * @retval None
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348 | */
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349 | static void MX_GPIO_Init(void)
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350 | {
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351 | GPIO_InitTypeDef GPIO_InitStruct = {0};
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352 | /* USER CODE BEGIN MX_GPIO_Init_1 */
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353 | /* USER CODE END MX_GPIO_Init_1 */
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354 |
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355 | /* GPIO Ports Clock Enable */
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356 | __HAL_RCC_GPIOC_CLK_ENABLE();
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357 | __HAL_RCC_GPIOF_CLK_ENABLE();
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358 | __HAL_RCC_GPIOA_CLK_ENABLE();
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359 |
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360 | /*Configure GPIO pin Output Level */
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361 | HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_RESET);
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362 |
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363 | /*Configure GPIO pin : B1_Pin */
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364 | GPIO_InitStruct.Pin = B1_Pin;
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365 | GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
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366 | GPIO_InitStruct.Pull = GPIO_NOPULL;
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367 | HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct);
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368 |
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369 | /*Configure GPIO pin : LD2_Pin */
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370 | GPIO_InitStruct.Pin = LD2_Pin;
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371 | GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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372 | GPIO_InitStruct.Pull = GPIO_NOPULL;
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373 | GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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374 | HAL_GPIO_Init(LD2_GPIO_Port, &GPIO_InitStruct);
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375 |
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376 | /* USER CODE BEGIN MX_GPIO_Init_2 */
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377 | /* USER CODE END MX_GPIO_Init_2 */
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378 | }
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379 |
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380 | /* USER CODE BEGIN 4 */
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381 |
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382 | /* USER CODE END 4 */
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383 |
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384 | /**
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385 | * @brief This function is executed in case of error occurrence.
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386 | * @retval None
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387 | */
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388 | void Error_Handler(void)
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389 | {
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390 | /* USER CODE BEGIN Error_Handler_Debug */
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391 | /* User can add his own implementation to report the HAL error return state */
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392 | __disable_irq();
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393 | while (1)
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394 | {
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395 | }
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396 | /* USER CODE END Error_Handler_Debug */
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397 | }
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398 |
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399 | #ifdef USE_FULL_ASSERT
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400 | /**
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401 | * @brief Reports the name of the source file and the source line number
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402 | * where the assert_param error has occurred.
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403 | * @param file: pointer to the source file name
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404 | * @param line: assert_param error line source number
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405 | * @retval None
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406 | */
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407 | void assert_failed(uint8_t *file, uint32_t line)
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408 | {
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409 | /* USER CODE BEGIN 6 */
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410 | /* User can add his own implementation to report the file name and line number,
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411 | ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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412 | /* USER CODE END 6 */
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413 | }
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414 | #endif /* USE_FULL_ASSERT */
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