请教一下关于F429定时器输入捕获测量频率的代码问题

fishfly

1. void ADVANCE_TIM_IRQHandler (void)
   
2. {
   
3. if(TIM_GetITStatus(ADVANCE_TIM, TIM_IT_Update) != RESET){
   
4. TIM_ICUserValueStructure.Capture_Period ++;
   
5. TIM_ClearITPendingBit(ADVANCE_TIM, TIM_IT_Update);
   
6. }
   
7. 
   
8. if ( TIM_GetITStatus(ADVANCE_TIM, TIM_IT_CC1) != RESET)
   
9. {
   
10. // 第一次捕获
    
11. if ( TIM_ICUserValueStructure.Capture_StartFlag == 0)
    
12. {
    
13. TIM_SetCounter(ADVANCE_TIM, 0);
    
14. TIM_ICUserValueStructure.Capture_Period = 0;
    
15. TIM_ICUserValueStructure.Capture_CcrValue = 0;
    
16. TIM_ICUserValueStructure.Capture_StartFlag = 1;
    
17. }else{
    
18. TIM_ICUserValueStructure.Capture_CcrValue = TIM_GetCapture1(ADVANCE_TIM);
    
19. TIM_ICUserValueStructure.Capture_StartFlag = 0;
    
20. TIM_ICUserValueStructure.Capture_FinishFlag = 1;
    
21. }
    
22. 
    
23. TIM_ClearITPendingBit (ADVANCE_TIM,TIM_IT_CC1);
    
24. }
    
25. }

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1. #ifndef __GENERAL_TIM_H
   
2. #define __GENERAL_TIM_H
   
3. 
   
4. #include "stm32f4xx.h"
   
5. 
   
6. /* 高级控制定时器PWM输入捕获 */
   
7. /* PWM输入捕获引脚 */
   
8. #define ADVANCE_ICPWM_PIN GPIO_Pin_6
   
9. #define ADVANCE_ICPWM_GPIO_PORT GPIOC
   
10. #define ADVANCE_ICPWM_GPIO_CLK RCC_AHB1Periph_GPIOC
    
11. #define ADVANCE_ICPWM_PINSOURCE GPIO_PinSource6
    
12. #define ADVANCE_ICPWM_AF GPIO_AF_TIM8
    
13. #define ADVANCE_IC1PWM_CHANNEL TIM_Channel_1
    
14. 
    
15. /* 高级控制定时器 */
    
16. #define ADVANCE_TIM TIM8
    
17. #define ADVANCE_TIM_CLK RCC_APB2Periph_TIM8
    
18. 
    
19. /* 捕获/比较中断 */
    
20. #define ADVANCE_TIM_IRQn TIM8_CC_IRQn
    
21. #define ADVANCE_TIM_IRQHandler TIM8_CC_IRQHandler
    
22. 
    
23. typedef struct
    
24. {
    
25. uint8_t Capture_FinishFlag; // 捕获结束标志位
    
26. uint8_t Capture_StartFlag; // 捕获开始标志位
    
27. uint16_t Capture_CcrValue; // 捕获寄存器的值
    
28. uint16_t Capture_Period; // 自动重装载寄存器更新标志
    
29. }TIM_ICUserValueTypeDef;
    
30. 
    
31. extern TIM_ICUserValueTypeDef TIM_ICUserValueStructure;
    
32. 
    
33. void TIMx_Configuration(void);
    
34. 
    
35. #endif /* __GENERAL_TIM_H */
    
36. 
    

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1. 
   
2. <DIV class=blockcode>
   
3. <BLOCKQUOTE>#include "bsp_advance_tim.h"
   
4. 
   
5. TIM_ICUserValueTypeDef TIM_ICUserValueStructure = {0, 0, 0, 0};
   
6. 
   
7. static void TIMx_GPIO_Config(void)
   
8. {
   
9. GPIO_InitTypeDef GPIO_InitStructure;
   
10. 
    
11. RCC_AHB1PeriphClockCmd (ADVANCE_ICPWM_GPIO_CLK, ENABLE);
    
12. GPIO_PinAFConfig(ADVANCE_ICPWM_GPIO_PORT,ADVANCE_ICPWM_PINSOURCE,ADVANCE_ICPWM_AF);
    
13. 
    
14. GPIO_InitStructure.GPIO_Pin = ADVANCE_ICPWM_PIN;
    
15. GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
    
16. GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
    
17. GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
    
18. GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
    
19. 
    
20. GPIO_Init(ADVANCE_ICPWM_GPIO_PORT, &GPIO_InitStructure);
    
21. }
    
22. 
    
23. static void TIMx_NVIC_Configuration(void)
    
24. {
    
25. NVIC_InitTypeDef NVIC_InitStructure;
    
26. // 设置中断组为0
    
27. NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
    
28. // 设置中断来源
    
29. NVIC_InitStructure.NVIC_IRQChannel = ADVANCE_TIM_IRQn;
    
30. // 设置抢占优先级
    
31. NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
    
32. // 设置子优先级
    
33. NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;
    
34. NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    
35. NVIC_Init(&NVIC_InitStructure);
    
36. }
    
37. 
    
38. static void TIM_PWMINPUT_Config(void)
    
39. {
    
40. TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
    
41. TIM_ICInitTypeDef TIM_ICInitStructure;
    
42. 
    
43. RCC_APB2PeriphClockCmd(ADVANCE_TIM_CLK, ENABLE);
    
44. 
    
45. TIM_TimeBaseStructure.TIM_Period = 0xFFFF-1;
    
46. TIM_TimeBaseStructure.TIM_Prescaler = 1800-1;
    
47. TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up;
    
48. TIM_TimeBaseInit(ADVANCE_TIM, &TIM_TimeBaseStructure);
    
49. 
    
50. TIM_ICInitStructure.TIM_Channel = ADVANCE_IC1PWM_CHANNEL;
    
51. TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising;
    
52. TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI;
    
53. TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;
    
54. TIM_ICInitStructure.TIM_ICFilter = 0x0;
    
55. TIM_ICInit(ADVANCE_TIM, &TIM_ICInitStructure);
    
56. 
    
57. TIM_ClearFlag(ADVANCE_TIM, TIM_FLAG_Update|TIM_IT_CC1); //清除更新和捕获中断标志位
    
58. TIM_ITConfig (ADVANCE_TIM, TIM_IT_Update | TIM_IT_CC1, ENABLE );//开启更新和捕获中断
    
59. 
    
60. TIM_Cmd(ADVANCE_TIM, ENABLE);
    
61. 
    
62. 
    
63. }
    
64. 
    
65. void TIMx_Configuration(void)
    
66. {
    
67. TIMx_GPIO_Config();
    
68. 
    
69. TIMx_NVIC_Configuration();
    
70. 
    
71. TIM_PWMINPUT_Config();
    
72. }
    
73. 
    
74. /*********************************************END OF FILE**********************/
    

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这个是参照F103的定时器进行输入捕获测量外部信号脉冲修改的，我的作用是想测量外部信号的频率，在板子上面下载之后数据显示正确，期望大家可以帮忙看看谢谢

fishfly

因为在火哥的PWM输入捕获中出现了设置定时器的复用功能，有几个函数 ，但是在F103中没有出现 ，我不知道是不是问题出现在这里，