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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/SPI/SPI_FLASH/main.c @ 89:fc21fb5b171b default tip
Make error message more useful
author | Daniel O'Connor <darius@dons.net.au> |
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date | Fri, 13 Mar 2015 11:39:59 +1030 |
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1 /** |
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2 ****************************************************************************** |
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3 * @file SPI/SPI_FLASH/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>© 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 "stm32_eval.h" |
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24 #include "stm32_eval_spi_flash.h" |
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25 |
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26 /** @addtogroup STM32F10x_StdPeriph_Examples |
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27 * @{ |
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28 */ |
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29 |
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30 /** @addtogroup SPI_FLASH |
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31 * @{ |
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32 */ |
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33 |
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34 /* Private typedef -----------------------------------------------------------*/ |
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35 typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus; |
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36 |
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37 /* Private define ------------------------------------------------------------*/ |
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38 #define FLASH_WriteAddress 0x700000 |
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39 #define FLASH_ReadAddress FLASH_WriteAddress |
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40 #define FLASH_SectorToErase FLASH_WriteAddress |
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41 |
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42 #if defined(USE_STM32100B_EVAL) || defined(USE_STM32100E_EVAL) |
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43 #define sFLASH_ID sFLASH_M25P128_ID |
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44 #else |
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45 #define sFLASH_ID sFLASH_M25P64_ID |
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46 #endif |
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47 |
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48 #define BufferSize (countof(Tx_Buffer)-1) |
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49 |
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50 /* Private macro -------------------------------------------------------------*/ |
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51 #define countof(a) (sizeof(a) / sizeof(*(a))) |
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52 |
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53 /* Private variables ---------------------------------------------------------*/ |
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54 uint8_t Tx_Buffer[] = "STM32F10x SPI Firmware Library Example: communication with an M25P SPI FLASH"; |
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55 uint8_t Rx_Buffer[BufferSize]; |
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56 __IO uint8_t Index = 0x0; |
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57 volatile TestStatus TransferStatus1 = FAILED, TransferStatus2 = PASSED; |
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58 __IO uint32_t FlashID = 0; |
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59 |
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60 /* Private functions ---------------------------------------------------------*/ |
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61 TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength); |
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62 |
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63 /** |
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64 * @brief Main program |
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65 * @param None |
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66 * @retval None |
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67 */ |
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68 int main(void) |
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69 { |
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70 /*!< At this stage the microcontroller clock setting is already configured, |
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71 this is done through SystemInit() function which is called from startup |
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72 file (startup_stm32f10x_xx.s) before to branch to application main. |
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73 To reconfigure the default setting of SystemInit() function, refer to |
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74 system_stm32f10x.c file |
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75 */ |
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76 |
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77 /* Initialize Leds mounted on STM3210X-EVAL board */ |
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78 STM_EVAL_LEDInit(LED1); |
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79 STM_EVAL_LEDInit(LED2); |
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80 |
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81 /* Initialize the SPI FLASH driver */ |
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82 sFLASH_Init(); |
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83 |
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84 /* Get SPI Flash ID */ |
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85 FlashID = sFLASH_ReadID(); |
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86 |
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87 /* Check the SPI Flash ID */ |
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88 if (FlashID == sFLASH_ID) |
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89 { |
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90 /* OK: Turn on LD1 */ |
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91 STM_EVAL_LEDOn(LED1); |
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92 |
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93 /* Perform a write in the Flash followed by a read of the written data */ |
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94 /* Erase SPI FLASH Sector to write on */ |
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95 sFLASH_EraseSector(FLASH_SectorToErase); |
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96 |
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97 /* Write Tx_Buffer data to SPI FLASH memory */ |
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98 sFLASH_WriteBuffer(Tx_Buffer, FLASH_WriteAddress, BufferSize); |
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99 |
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100 /* Read data from SPI FLASH memory */ |
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101 sFLASH_ReadBuffer(Rx_Buffer, FLASH_ReadAddress, BufferSize); |
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102 |
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103 /* Check the correctness of written dada */ |
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104 TransferStatus1 = Buffercmp(Tx_Buffer, Rx_Buffer, BufferSize); |
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105 /* TransferStatus1 = PASSED, if the transmitted and received data by SPI1 |
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106 are the same */ |
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107 /* TransferStatus1 = FAILED, if the transmitted and received data by SPI1 |
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108 are different */ |
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109 |
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110 /* Perform an erase in the Flash followed by a read of the written data */ |
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111 /* Erase SPI FLASH Sector to write on */ |
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112 sFLASH_EraseSector(FLASH_SectorToErase); |
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113 |
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114 /* Read data from SPI FLASH memory */ |
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115 sFLASH_ReadBuffer(Rx_Buffer, FLASH_ReadAddress, BufferSize); |
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116 |
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117 /* Check the correctness of erasing operation dada */ |
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118 for (Index = 0; Index < BufferSize; Index++) |
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119 { |
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120 if (Rx_Buffer[Index] != 0xFF) |
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121 { |
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122 TransferStatus2 = FAILED; |
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123 } |
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124 } |
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125 /* TransferStatus2 = PASSED, if the specified sector part is erased */ |
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126 /* TransferStatus2 = FAILED, if the specified sector part is not well erased */ |
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127 } |
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128 else |
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129 { |
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130 /* Error: Turn on LD2 */ |
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131 STM_EVAL_LEDOn(LED2); |
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132 } |
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133 |
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134 while (1) |
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135 {} |
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136 } |
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137 |
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138 /** |
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139 * @brief Compares two buffers. |
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140 * @param pBuffer1, pBuffer2: buffers to be compared. |
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141 * @param BufferLength: buffer's length |
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142 * @retval PASSED: pBuffer1 identical to pBuffer2 |
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143 * FAILED: pBuffer1 differs from pBuffer2 |
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144 */ |
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145 TestStatus Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength) |
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146 { |
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147 while (BufferLength--) |
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148 { |
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149 if (*pBuffer1 != *pBuffer2) |
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150 { |
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151 return FAILED; |
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152 } |
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153 |
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154 pBuffer1++; |
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155 pBuffer2++; |
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156 } |
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157 |
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158 return PASSED; |
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159 } |
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160 |
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161 #ifdef USE_FULL_ASSERT |
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162 |
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163 /** |
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164 * @brief Reports the name of the source file and the source line number |
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165 * where the assert_param error has occurred. |
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166 * @param file: pointer to the source file name |
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167 * @param line: assert_param error line source number |
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168 * @retval None |
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169 */ |
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170 void assert_failed(uint8_t* file, uint32_t line) |
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171 { |
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172 /* User can add his own implementation to report the file name and line number, |
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173 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ |
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174 |
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175 /* Infinite loop */ |
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176 while (1) |
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177 {} |
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178 } |
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179 |
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180 #endif |
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181 /** |
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182 * @} |
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183 */ |
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184 |
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185 /** |
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186 * @} |
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187 */ |
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188 |
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189 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |