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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/IWDG/IWDG_Reset/stm32f10x_it.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 |
parents | c59513fd84fb |
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1 /** |
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2 ****************************************************************************** |
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3 * @file IWDG/IWDG_Reset/stm32f10x_it.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 Interrupt Service Routines. |
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8 * This file provides template for all exceptions handler and peripherals |
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9 * interrupt service routine. |
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10 ****************************************************************************** |
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11 * @attention |
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12 * |
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13 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS |
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14 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE |
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15 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY |
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16 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING |
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17 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE |
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18 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. |
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19 * |
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20 * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> |
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21 ****************************************************************************** |
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22 */ |
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23 |
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24 /* Includes ------------------------------------------------------------------*/ |
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25 #include "stm32f10x_it.h" |
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26 #include "stm32_eval.h" |
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27 |
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28 /** @addtogroup STM32F10x_StdPeriph_Examples |
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29 * @{ |
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30 */ |
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31 |
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32 /** @addtogroup IWDG_Reset |
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33 * @{ |
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34 */ |
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35 |
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36 /* Private typedef -----------------------------------------------------------*/ |
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37 /* Private define ------------------------------------------------------------*/ |
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38 /* Private macro -------------------------------------------------------------*/ |
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39 /* Private variables ---------------------------------------------------------*/ |
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40 extern __IO uint32_t TimingDelay; |
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41 __IO uint16_t IC1ReadValue1 = 0, IC1ReadValue2 = 0; |
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42 __IO uint16_t CaptureNumber = 0; |
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43 __IO uint32_t Capture = 0; |
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44 extern uint32_t LsiFreq; |
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45 |
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46 /* Private function prototypes -----------------------------------------------*/ |
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47 /* Private functions ---------------------------------------------------------*/ |
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48 |
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49 /******************************************************************************/ |
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50 /* Cortex-M3 Processor Exceptions Handlers */ |
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51 /******************************************************************************/ |
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52 |
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53 /** |
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54 * @brief This function handles NMI exception. |
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55 * @param None |
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56 * @retval None |
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57 */ |
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58 void NMI_Handler(void) |
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59 { |
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60 } |
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61 |
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62 /** |
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63 * @brief This function handles Hard Fault exception. |
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64 * @param None |
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65 * @retval None |
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66 */ |
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67 void HardFault_Handler(void) |
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68 { |
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69 /* Go to infinite loop when Hard Fault exception occurs */ |
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70 while (1) |
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71 {} |
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72 } |
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73 |
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74 /** |
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75 * @brief This function handles Memory Manage exception. |
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76 * @param None |
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77 * @retval None |
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78 */ |
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79 void MemManage_Handler(void) |
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80 { |
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81 /* Go to infinite loop when Memory Manage exception occurs */ |
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82 while (1) |
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83 {} |
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84 } |
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85 |
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86 /** |
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87 * @brief This function handles Bus Fault exception. |
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88 * @param None |
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89 * @retval None |
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90 */ |
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91 void BusFault_Handler(void) |
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92 { |
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93 /* Go to infinite loop when Bus Fault exception occurs */ |
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94 while (1) |
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95 {} |
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96 } |
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97 |
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98 /** |
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99 * @brief This function handles Usage Fault exception. |
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100 * @param None |
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101 * @retval None |
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102 */ |
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103 void UsageFault_Handler(void) |
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104 { |
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105 /* Go to infinite loop when Usage Fault exception occurs */ |
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106 while (1) |
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107 {} |
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108 } |
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109 |
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110 /** |
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111 * @brief This function handles Debug Monitor exception. |
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112 * @param None |
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113 * @retval None |
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114 */ |
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115 void DebugMon_Handler(void) |
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116 { |
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117 } |
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118 |
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119 /** |
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120 * @brief This function handles SVCall exception. |
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121 * @param None |
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122 * @retval None |
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123 */ |
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124 void SVC_Handler(void) |
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125 { |
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126 } |
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127 |
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128 /** |
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129 * @brief This function handles PendSV_Handler exception. |
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130 * @param None |
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131 * @retval None |
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132 */ |
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133 void PendSV_Handler(void) |
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134 { |
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135 } |
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136 |
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137 /** |
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138 * @brief This function handles SysTick Handler. |
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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 SysTick_Handler(void) |
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143 { |
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144 TimingDelay--; |
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145 } |
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146 |
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147 /******************************************************************************/ |
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148 /* STM32F10x Peripherals Interrupt Handlers */ |
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149 /******************************************************************************/ |
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150 |
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151 /** |
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152 * @brief This function handles External lines 9 to 5 interrupt request. |
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153 * @param None |
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154 * @retval None |
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155 */ |
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156 void EXTI9_5_IRQHandler(void) |
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157 { |
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158 if (EXTI_GetITStatus(KEY_BUTTON_EXTI_LINE) != RESET) |
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159 { |
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160 /* Clear the Key Button EXTI Line Pending Bit */ |
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161 EXTI_ClearITPendingBit(KEY_BUTTON_EXTI_LINE); |
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162 |
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163 /* As the following address is invalid (not mapped), a Hardfault exception |
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164 will be generated with an infinite loop and when the IWDG counter reaches 0 |
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165 the IWDG reset occurs */ |
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166 *(__IO uint32_t *) 0x000000FF = 0xFF; |
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167 } |
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168 } |
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169 |
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170 /** |
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171 * @brief This function handles TIM5 global interrupt request. |
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172 * @param None |
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173 * @retval None |
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174 */ |
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175 void TIM5_IRQHandler(void) |
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176 { |
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177 if (TIM_GetITStatus(TIM5, TIM_IT_CC4) != RESET) |
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178 { |
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179 if(CaptureNumber == 0) |
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180 { |
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181 /* Get the Input Capture value */ |
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182 IC1ReadValue1 = TIM_GetCapture4(TIM5); |
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183 } |
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184 else if(CaptureNumber == 1) |
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185 { |
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186 /* Get the Input Capture value */ |
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187 IC1ReadValue2 = TIM_GetCapture4(TIM5); |
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188 |
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189 /* Capture computation */ |
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190 if (IC1ReadValue2 > IC1ReadValue1) |
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191 { |
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192 Capture = (IC1ReadValue2 - IC1ReadValue1); |
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193 } |
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194 else |
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195 { |
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196 Capture = ((0xFFFF - IC1ReadValue1) + IC1ReadValue2); |
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197 } |
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198 /* Frequency computation */ |
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199 LsiFreq = (uint32_t) SystemCoreClock / Capture; |
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200 LsiFreq *= 8; |
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201 } |
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202 |
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203 CaptureNumber++; |
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204 |
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205 /* Clear TIM5 Capture compare interrupt pending bit */ |
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206 TIM_ClearITPendingBit(TIM5, TIM_IT_CC4); |
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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 /* STM32F10x Peripherals Interrupt Handlers */ |
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212 /* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ |
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213 /* available peripheral interrupt handler's name please refer to the startup */ |
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214 /* file (startup_stm32f10x_xx.s). */ |
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215 /******************************************************************************/ |
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216 |
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217 /** |
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218 * @brief This function handles PPP interrupt request. |
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219 * @param None |
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220 * @retval None |
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221 */ |
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222 /*void PPP_IRQHandler(void) |
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223 { |
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224 }*/ |
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225 |
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226 /** |
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227 * @} |
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228 */ |
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229 /** |
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230 * @} |
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231 */ |
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232 |
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233 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |