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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM15_ComplementarySignals/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 TIM/TIM15_ComplementarySignals/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 "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 TIM15_ComplementarySignals |
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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 /* Private define ------------------------------------------------------------*/ |
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35 /* Private macro -------------------------------------------------------------*/ |
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36 /* Private variables ---------------------------------------------------------*/ |
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37 TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; |
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38 TIM_OCInitTypeDef TIM_OCInitStructure; |
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39 TIM_BDTRInitTypeDef TIM_BDTRInitStructure; |
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40 uint16_t CCR1_Val = 32767; |
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41 |
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42 /* Private function prototypes -----------------------------------------------*/ |
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43 void RCC_Configuration(void); |
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44 void GPIO_Configuration(void); |
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45 |
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46 /* Private functions ---------------------------------------------------------*/ |
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47 |
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48 /** |
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49 * @brief Main program |
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50 * @param None |
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51 * @retval None |
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52 */ |
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53 int main(void) |
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54 { |
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55 /*!< At this stage the microcontroller clock setting is already configured, |
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56 this is done through SystemInit() function which is called from startup |
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57 file (startup_stm32f10x_xx.s) before to branch to application main. |
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58 To reconfigure the default setting of SystemInit() function, refer to |
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59 system_stm32f10x.c file |
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60 */ |
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61 |
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62 /* System Clocks Configuration */ |
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63 RCC_Configuration(); |
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64 |
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65 /* GPIO Configuration */ |
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66 GPIO_Configuration(); |
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67 |
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68 /* ----------------------------------------------------------------------- |
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69 TIM15 Configuration to: |
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70 |
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71 1/ Generate a complementary PWM signals with 50% duty cycles: |
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72 TIM15CLK = 24 MHz, Prescaler = 0, TIM15 counter clock = 24 MHz |
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73 TIM15 frequency = TIM15CLK/(TIM15_Period + 1) = 366 Hz |
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74 |
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75 TIM15 Channel1 duty cycle = TIM15->CCR1 / TIM15_Period = 50% |
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76 TIM15 Channel1N duty cycle = (TIM15_Period - TIM15_CCR1) / (TIM15_Period + 1) = 50% |
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77 |
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78 2/ Insert a dead time equal to 1.62 us |
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79 3/ Configure the break feature, active at High level, and using the automatic |
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80 output enable feature |
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81 4/ Use the Locking parameters level1. |
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82 ----------------------------------------------------------------------- */ |
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83 |
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84 /* Time Base configuration */ |
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85 TIM_TimeBaseStructure.TIM_Prescaler = 0; |
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86 TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; |
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87 TIM_TimeBaseStructure.TIM_Period = 65535; |
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88 TIM_TimeBaseStructure.TIM_ClockDivision = 0; |
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89 TIM_TimeBaseStructure.TIM_RepetitionCounter = 0; |
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90 |
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91 TIM_TimeBaseInit(TIM15, &TIM_TimeBaseStructure); |
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92 |
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93 /* Channel 1 Configuration in PWM mode */ |
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94 TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; |
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95 TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; |
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96 TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable; |
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97 TIM_OCInitStructure.TIM_Pulse = CCR1_Val; |
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98 TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; |
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99 TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low; |
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100 TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set; |
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101 TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset; |
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102 |
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103 TIM_OC1Init(TIM15, &TIM_OCInitStructure); |
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104 |
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105 /* Automatic Output enable, Break, dead time and lock configuration*/ |
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106 TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable; |
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107 TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Enable; |
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108 TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_1; |
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109 TIM_BDTRInitStructure.TIM_DeadTime = 39; |
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110 TIM_BDTRInitStructure.TIM_Break = TIM_Break_Enable; |
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111 TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_High; |
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112 TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Enable; |
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113 |
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114 TIM_BDTRConfig(TIM15, &TIM_BDTRInitStructure); |
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115 |
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116 /* TIM15 counter enable */ |
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117 TIM_Cmd(TIM15, ENABLE); |
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118 |
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119 /* Main Output Enable */ |
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120 TIM_CtrlPWMOutputs(TIM15, ENABLE); |
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121 |
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122 while (1) |
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123 { |
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124 } |
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125 } |
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126 |
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127 /** |
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128 * @brief Configures the different system clocks. |
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129 * @param None |
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130 * @retval None |
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131 */ |
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132 void RCC_Configuration(void) |
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133 { |
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134 /* TIM15, GPIOA, GPIOB and AFIO clocks enable */ |
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135 RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM15 | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB |
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136 | RCC_APB2Periph_AFIO, ENABLE); |
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137 } |
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138 |
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139 /** |
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140 * @brief Configure the TIM1 Pins. |
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141 * @param None |
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142 * @retval None |
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143 */ |
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144 void GPIO_Configuration(void) |
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145 { |
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146 GPIO_InitTypeDef GPIO_InitStructure; |
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147 |
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148 /* GPIOA Configuration: Channel 1 as alternate function push-pull */ |
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149 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; |
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150 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; |
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151 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; |
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152 GPIO_Init(GPIOA, &GPIO_InitStructure); |
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153 |
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154 /* GPIOB Configuration: Channel 1N as alternate function push-pull */ |
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155 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15; |
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156 GPIO_Init(GPIOB, &GPIO_InitStructure); |
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157 |
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158 /* GPIOA Configuration: BKIN pin */ |
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159 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; |
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160 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; |
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161 GPIO_Init(GPIOB, &GPIO_InitStructure); |
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162 } |
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163 |
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164 #ifdef USE_FULL_ASSERT |
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165 |
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166 /** |
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167 * @brief Reports the name of the source file and the source line number |
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168 * where the assert_param error has occurred. |
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169 * @param file: pointer to the source file name |
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170 * @param line: assert_param error line source number |
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171 * @retval None |
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172 */ |
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173 void assert_failed(uint8_t* file, uint32_t line) |
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174 { |
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175 /* User can add his own implementation to report the file name and line number, |
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176 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ |
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177 |
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178 while (1) |
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179 {} |
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180 } |
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181 |
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182 #endif |
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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 * @} |
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190 */ |
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191 |
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192 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |