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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/EXTI/EXTI_Config/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 EXTI/EXTI_Config/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 #include "stm32_eval.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 EXTI_Config |
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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 /* Private define ------------------------------------------------------------*/ |
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36 /* Private macro -------------------------------------------------------------*/ |
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37 /* Private variables ---------------------------------------------------------*/ |
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38 EXTI_InitTypeDef EXTI_InitStructure; |
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39 GPIO_InitTypeDef GPIO_InitStructure; |
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40 NVIC_InitTypeDef NVIC_InitStructure; |
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41 |
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42 /* Private function prototypes -----------------------------------------------*/ |
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43 void EXTI0_Config(void); |
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44 void EXTI9_5_Config(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 /* Initialize LED1 and Key Button mounted on STM3210X-EVAL board */ |
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63 STM_EVAL_LEDInit(LED1); |
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64 STM_EVAL_LEDInit(LED2); |
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65 |
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66 /* Configure PA.00 in interrupt mode */ |
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67 EXTI0_Config(); |
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68 |
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69 /* Configure PB.09 or PG.08 in interrupt mode */ |
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70 EXTI9_5_Config(); |
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71 |
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72 /* Generate software interrupt: simulate a falling edge applied on EXTI0 line */ |
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73 EXTI_GenerateSWInterrupt(EXTI_Line0); |
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74 |
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75 while (1) |
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76 { |
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77 } |
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78 } |
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79 |
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80 /** |
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81 * @brief Configure PA.00 in interrupt mode |
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82 * @param None |
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83 * @retval None |
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84 */ |
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85 void EXTI0_Config(void) |
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86 { |
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87 /* Enable GPIOA clock */ |
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88 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); |
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89 |
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90 /* Configure PA.00 pin as input floating */ |
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91 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; |
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92 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; |
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93 GPIO_Init(GPIOA, &GPIO_InitStructure); |
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94 |
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95 /* Enable AFIO clock */ |
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96 RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE); |
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97 |
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98 /* Connect EXTI0 Line to PA.00 pin */ |
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99 GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource0); |
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100 |
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101 /* Configure EXTI0 line */ |
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102 EXTI_InitStructure.EXTI_Line = EXTI_Line0; |
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103 EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; |
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104 EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising; |
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105 EXTI_InitStructure.EXTI_LineCmd = ENABLE; |
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106 EXTI_Init(&EXTI_InitStructure); |
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107 |
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108 /* Enable and set EXTI0 Interrupt to the lowest priority */ |
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109 NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn; |
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110 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F; |
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111 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F; |
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112 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; |
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113 NVIC_Init(&NVIC_InitStructure); |
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114 } |
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115 |
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116 /** |
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117 * @brief Configure PB.09 or PG.08 in interrupt mode |
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118 * @param None |
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119 * @retval None |
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120 */ |
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121 void EXTI9_5_Config(void) |
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122 { |
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123 #if defined (STM32F10X_HD_VL) || defined (STM32F10X_HD) || defined (STM32F10X_XL) |
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124 /* Enable GPIOG clock */ |
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125 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOG, ENABLE); |
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126 |
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127 /* Configure PG.08 pin as input floating */ |
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128 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; |
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129 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; |
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130 GPIO_Init(GPIOG, &GPIO_InitStructure); |
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131 |
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132 /* Enable AFIO clock */ |
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133 RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE); |
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134 /* Connect EXTI8 Line to PG.08 pin */ |
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135 GPIO_EXTILineConfig(GPIO_PortSourceGPIOG, GPIO_PinSource8); |
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136 |
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137 /* Configure EXTI8 line */ |
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138 EXTI_InitStructure.EXTI_Line = EXTI_Line8; |
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139 EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; |
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140 EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; |
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141 EXTI_InitStructure.EXTI_LineCmd = ENABLE; |
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142 EXTI_Init(&EXTI_InitStructure); |
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143 |
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144 /* Enable and set EXTI9_5 Interrupt to the lowest priority */ |
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145 NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn; |
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146 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F; |
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147 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F; |
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148 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; |
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149 |
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150 NVIC_Init(&NVIC_InitStructure); |
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151 #else |
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152 /* Enable GPIOB clock */ |
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153 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); |
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154 |
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155 /* Configure PB.09 pin as input floating */ |
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156 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; |
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157 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; |
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158 GPIO_Init(GPIOB, &GPIO_InitStructure); |
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159 |
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160 /* Enable AFIO clock */ |
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161 RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE); |
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162 /* Connect EXTI9 Line to PB.09 pin */ |
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163 GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9); |
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164 |
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165 /* Configure EXTI9 line */ |
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166 EXTI_InitStructure.EXTI_Line = EXTI_Line9; |
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167 EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; |
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168 EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; |
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169 EXTI_InitStructure.EXTI_LineCmd = ENABLE; |
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170 EXTI_Init(&EXTI_InitStructure); |
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171 |
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172 /* Enable and set EXTI9_5 Interrupt to the lowest priority */ |
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173 NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn; |
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174 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F; |
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175 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F; |
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176 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; |
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177 |
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178 NVIC_Init(&NVIC_InitStructure); |
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179 #endif |
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180 } |
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181 |
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182 #ifdef USE_FULL_ASSERT |
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183 |
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184 /** |
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185 * @brief Reports the name of the source file and the source line number |
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186 * where the assert_param error has occurred. |
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187 * @param file: pointer to the source file name |
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188 * @param line: assert_param error line source number |
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189 * @retval None |
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190 */ |
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191 void assert_failed(uint8_t* file, uint32_t line) |
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192 { |
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193 /* User can add his own implementation to report the file name and line number, |
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194 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ |
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195 |
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196 /* Infinite loop */ |
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197 while (1) |
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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 #endif |
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203 |
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204 /** |
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205 * @} |
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206 */ |
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207 |
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208 /** |
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209 * @} |
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210 */ |
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211 |
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212 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |