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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/DMA/FLASH_RAM/main.c @ 0:c59513fd84fb

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Initial commit of STM32 test code.
author Daniel O'Connor <darius@dons.net.au>
date Mon, 03 Oct 2011 21:19:15 +1030
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1 /**
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2 ******************************************************************************
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3 * @file DMA/FLASH_RAM/main.c
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4 * @author MCD Application Team
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5 * @version V3.5.0
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6 * @date 08-April-2011
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7 * @brief Main program body
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8 ******************************************************************************
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9 * @attention
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10 *
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11 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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12 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
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13 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
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14 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
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15 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
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16 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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17 *
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18 * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
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19 ******************************************************************************
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20 */
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21
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22 /* Includes ------------------------------------------------------------------*/
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23 #include "stm32f10x.h"
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24
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25 /** @addtogroup STM32F10x_StdPeriph_Examples
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26 * @{
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27 */
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28
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29 /** @addtogroup DMA_FLASH_RAM
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30 * @{
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31 */
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32
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33 /* Private typedef -----------------------------------------------------------*/
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34 typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus;
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35
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36 /* Private define ------------------------------------------------------------*/
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37 #define BufferSize 32
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38
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39 /* Private macro -------------------------------------------------------------*/
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40 /* Private variables ---------------------------------------------------------*/
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41 DMA_InitTypeDef DMA_InitStructure;
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42 __IO uint32_t CurrDataCounterBegin = 0;
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43 __IO uint32_t CurrDataCounterEnd = 0x01; /* This variable should not be initialized to 0 */
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44
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45 TestStatus TransferStatus = FAILED;
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46 const uint32_t SRC_Const_Buffer[BufferSize]= {
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47 0x01020304,0x05060708,0x090A0B0C,0x0D0E0F10,
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48 0x11121314,0x15161718,0x191A1B1C,0x1D1E1F20,
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49 0x21222324,0x25262728,0x292A2B2C,0x2D2E2F30,
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50 0x31323334,0x35363738,0x393A3B3C,0x3D3E3F40,
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51 0x41424344,0x45464748,0x494A4B4C,0x4D4E4F50,
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52 0x51525354,0x55565758,0x595A5B5C,0x5D5E5F60,
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53 0x61626364,0x65666768,0x696A6B6C,0x6D6E6F70,
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54 0x71727374,0x75767778,0x797A7B7C,0x7D7E7F80};
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55 uint32_t DST_Buffer[BufferSize];
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56
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57 /* Private function prototypes -----------------------------------------------*/
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58 void RCC_Configuration(void);
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59 void NVIC_Configuration(void);
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60 TestStatus Buffercmp(const uint32_t* pBuffer, uint32_t* pBuffer1, uint16_t BufferLength);
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61
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62 /* Private functions ---------------------------------------------------------*/
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63
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64 /**
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65 * @brief Main program
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66 * @param None
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67 * @retval None
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68 */
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69 int main(void)
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70 {
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71 /*!< At this stage the microcontroller clock setting is already configured,
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72 this is done through SystemInit() function which is called from startup
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73 file (startup_stm32f10x_xx.s) before to branch to application main.
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74 To reconfigure the default setting of SystemInit() function, refer to
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75 system_stm32f10x.c file
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76 */
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77
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78 /* System Clocks Configuration */
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79 RCC_Configuration();
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80
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81 /* NVIC configuration */
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82 NVIC_Configuration();
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83
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84 /* DMA1 channel6 configuration */
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85 DMA_DeInit(DMA1_Channel6);
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86 DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SRC_Const_Buffer;
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87 DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)DST_Buffer;
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88 DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
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89 DMA_InitStructure.DMA_BufferSize = BufferSize;
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90 DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Enable;
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91 DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
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92 DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
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93 DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
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94 DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
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95 DMA_InitStructure.DMA_Priority = DMA_Priority_High;
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96 DMA_InitStructure.DMA_M2M = DMA_M2M_Enable;
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97 DMA_Init(DMA1_Channel6, &DMA_InitStructure);
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98
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99 /* Enable DMA1 Channel6 Transfer Complete interrupt */
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100 DMA_ITConfig(DMA1_Channel6, DMA_IT_TC, ENABLE);
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101
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102 /* Get Current Data Counter value before transfer begins */
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103 CurrDataCounterBegin = DMA_GetCurrDataCounter(DMA1_Channel6);
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104
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105 /* Enable DMA1 Channel6 transfer */
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106 DMA_Cmd(DMA1_Channel6, ENABLE);
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107
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108 /* Wait the end of transmission */
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109 while (CurrDataCounterEnd != 0)
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110 {
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111 }
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112
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113 /* Check if the transmitted and received data are equal */
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114 TransferStatus = Buffercmp(SRC_Const_Buffer, DST_Buffer, BufferSize);
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115 /* TransferStatus = PASSED, if the transmitted and received data
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116 are the same */
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117 /* TransferStatus = FAILED, if the transmitted and received data
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118 are different */
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119
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120 while (1)
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121 {
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122 }
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123 }
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124
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125 /**
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126 * @brief Configures the different system clocks.
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127 * @param None
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128 * @retval None
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129 */
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130 void RCC_Configuration(void)
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131 {
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132 /* Enable peripheral clocks ------------------------------------------------*/
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133 /* Enable DMA1 clock */
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134 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
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135 }
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136
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137 /**
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138 * @brief Configure the nested vectored interrupt controller.
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139 * @param None
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140 * @retval None
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141 */
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142 void NVIC_Configuration(void)
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143 {
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144 NVIC_InitTypeDef NVIC_InitStructure;
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145
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146 /* Enable DMA1 channel6 IRQ Channel */
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147 NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel6_IRQn;
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148 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
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149 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
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150 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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151 NVIC_Init(&NVIC_InitStructure);
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152 }
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153
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154 /**
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155 * @brief Compares two buffers.
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156 * @param pBuffer, pBuffer1: buffers to be compared.
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157 * @param BufferLength: buffer's length
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158 * @retval PASSED: pBuffer identical to pBuffer1
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159 * FAILED: pBuffer differs from pBuffer1
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160 */
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161 TestStatus Buffercmp(const uint32_t* pBuffer, uint32_t* pBuffer1, uint16_t BufferLength)
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162 {
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163 while(BufferLength--)
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164 {
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165 if(*pBuffer != *pBuffer1)
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166 {
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167 return FAILED;
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168 }
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169
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170 pBuffer++;
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171 pBuffer1++;
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172 }
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173
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174 return PASSED;
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175 }
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176
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177 #ifdef USE_FULL_ASSERT
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178
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179 /**
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180 * @brief Reports the name of the source file and the source line number
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181 * where the assert_param error has occurred.
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182 * @param file: pointer to the source file name
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183 * @param line: assert_param error line source number
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184 * @retval None
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185 */
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186 void assert_failed(uint8_t* file, uint32_t line)
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187 {
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188 /* User can add his own implementation to report the file name and line number,
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189 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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190
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191 /* Infinite loop */
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192 while (1)
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193 {
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194 }
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195 }
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196
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197 #endif
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198 /**
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199 * @}
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200 */
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201
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202 /**
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203 * @}
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204 */
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205
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206 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/