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comparison libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/InputCapture/stm32f10x_it.c @ 0:c59513fd84fb
Initial commit of STM32 test code.
author | Daniel O'Connor <darius@dons.net.au> |
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date | Mon, 03 Oct 2011 21:19:15 +1030 |
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-1:000000000000 | 0:c59513fd84fb |
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1 /** | |
2 ****************************************************************************** | |
3 * @file TIM/InputCapture/stm32f10x_it.c | |
4 * @author MCD Application Team | |
5 * @version V3.5.0 | |
6 * @date 08-April-2011 | |
7 * @brief Main Interrupt Service Routines. | |
8 * This file provides template for all exceptions handler and | |
9 * peripherals interrupt service routine. | |
10 ****************************************************************************** | |
11 * @attention | |
12 * | |
13 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS | |
14 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE | |
15 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY | |
16 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING | |
17 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE | |
18 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. | |
19 * | |
20 * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> | |
21 ****************************************************************************** | |
22 */ | |
23 | |
24 /* Includes ------------------------------------------------------------------*/ | |
25 #include "stm32f10x_it.h" | |
26 | |
27 /** @addtogroup STM32F10x_StdPeriph_Examples | |
28 * @{ | |
29 */ | |
30 | |
31 /** @addtogroup TIM_Input_Capture | |
32 * @{ | |
33 */ | |
34 | |
35 /* Private typedef -----------------------------------------------------------*/ | |
36 /* Private define ------------------------------------------------------------*/ | |
37 /* Private macro -------------------------------------------------------------*/ | |
38 /* Private variables ---------------------------------------------------------*/ | |
39 __IO uint16_t IC3ReadValue1 = 0, IC3ReadValue2 = 0; | |
40 __IO uint16_t CaptureNumber = 0; | |
41 __IO uint32_t Capture = 0; | |
42 __IO uint32_t TIM3Freq = 0; | |
43 | |
44 /* Private function prototypes -----------------------------------------------*/ | |
45 /* Private functions ---------------------------------------------------------*/ | |
46 | |
47 /******************************************************************************/ | |
48 /* Cortex-M3 Processor Exceptions Handlers */ | |
49 /******************************************************************************/ | |
50 | |
51 /** | |
52 * @brief This function handles NMI exception. | |
53 * @param None | |
54 * @retval None | |
55 */ | |
56 void NMI_Handler(void) | |
57 { | |
58 } | |
59 | |
60 /** | |
61 * @brief This function handles Hard Fault exception. | |
62 * @param None | |
63 * @retval None | |
64 */ | |
65 void HardFault_Handler(void) | |
66 { | |
67 /* Go to infinite loop when Hard Fault exception occurs */ | |
68 while (1) | |
69 {} | |
70 } | |
71 | |
72 /** | |
73 * @brief This function handles Memory Manage exception. | |
74 * @param None | |
75 * @retval None | |
76 */ | |
77 void MemManage_Handler(void) | |
78 { | |
79 /* Go to infinite loop when Memory Manage exception occurs */ | |
80 while (1) | |
81 {} | |
82 } | |
83 | |
84 /** | |
85 * @brief This function handles Bus Fault exception. | |
86 * @param None | |
87 * @retval None | |
88 */ | |
89 void BusFault_Handler(void) | |
90 { | |
91 /* Go to infinite loop when Bus Fault exception occurs */ | |
92 while (1) | |
93 {} | |
94 } | |
95 | |
96 /** | |
97 * @brief This function handles Usage Fault exception. | |
98 * @param None | |
99 * @retval None | |
100 */ | |
101 void UsageFault_Handler(void) | |
102 { | |
103 /* Go to infinite loop when Usage Fault exception occurs */ | |
104 while (1) | |
105 {} | |
106 } | |
107 | |
108 /** | |
109 * @brief This function handles Debug Monitor exception. | |
110 * @param None | |
111 * @retval None | |
112 */ | |
113 void DebugMon_Handler(void) | |
114 {} | |
115 | |
116 /** | |
117 * @brief This function handles SVCall exception. | |
118 * @param None | |
119 * @retval None | |
120 */ | |
121 void SVC_Handler(void) | |
122 {} | |
123 | |
124 /** | |
125 * @brief This function handles PendSV_Handler exception. | |
126 * @param None | |
127 * @retval None | |
128 */ | |
129 void PendSV_Handler(void) | |
130 {} | |
131 | |
132 /** | |
133 * @brief This function handles SysTick Handler. | |
134 * @param None | |
135 * @retval None | |
136 */ | |
137 void SysTick_Handler(void) | |
138 {} | |
139 | |
140 /******************************************************************************/ | |
141 /* STM32F10x Peripherals Interrupt Handlers */ | |
142 /******************************************************************************/ | |
143 /** | |
144 * @brief This function handles TIM3 global interrupt request. | |
145 * @param None | |
146 * @retval None | |
147 */ | |
148 void TIM3_IRQHandler(void) | |
149 { | |
150 if(TIM_GetITStatus(TIM3, TIM_IT_CC2) == SET) | |
151 { | |
152 /* Clear TIM3 Capture compare interrupt pending bit */ | |
153 TIM_ClearITPendingBit(TIM3, TIM_IT_CC2); | |
154 if(CaptureNumber == 0) | |
155 { | |
156 /* Get the Input Capture value */ | |
157 IC3ReadValue1 = TIM_GetCapture2(TIM3); | |
158 CaptureNumber = 1; | |
159 } | |
160 else if(CaptureNumber == 1) | |
161 { | |
162 /* Get the Input Capture value */ | |
163 IC3ReadValue2 = TIM_GetCapture2(TIM3); | |
164 | |
165 /* Capture computation */ | |
166 if (IC3ReadValue2 > IC3ReadValue1) | |
167 { | |
168 Capture = (IC3ReadValue2 - IC3ReadValue1); | |
169 } | |
170 else | |
171 { | |
172 Capture = ((0xFFFF - IC3ReadValue1) + IC3ReadValue2); | |
173 } | |
174 /* Frequency computation */ | |
175 TIM3Freq = (uint32_t) SystemCoreClock / Capture; | |
176 CaptureNumber = 0; | |
177 } | |
178 } | |
179 } | |
180 | |
181 /******************************************************************************/ | |
182 /* STM32F10x Peripherals Interrupt Handlers */ | |
183 /* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */ | |
184 /* available peripheral interrupt handler's name please refer to the startup */ | |
185 /* file (startup_stm32f10x_xx.s). */ | |
186 /******************************************************************************/ | |
187 | |
188 /** | |
189 * @brief This function handles PPP interrupt request. | |
190 * @param None | |
191 * @retval None | |
192 */ | |
193 /*void PPP_IRQHandler(void) | |
194 { | |
195 }*/ | |
196 | |
197 /** | |
198 * @} | |
199 */ | |
200 | |
201 /** | |
202 * @} | |
203 */ | |
204 | |
205 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |