更换定时器进行捕获实验

jhqcumt

参照原子哥定时器5通道1输入捕获实验在战舰版上添加了一个超声波测距模块，测距成功。现在想多加几个测距模块，然后仿照定时器5的配置加了个定时器4通道1的输入捕获，一直没有成功，求各位大神帮忙看下程序哪里需要修改：

#include "timer.h"
#include "led.h"
#include "usart.h"

//定时器5通道1输入捕获配置

TIM_ICInitTypeDef  TIM5_ICInitStructure;

void TIM5_Cap_Init(u16 arr,u16 psc)
{  
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
    NVIC_InitTypeDef NVIC_InitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE); //
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);  //

GPIO_InitStructure.GPIO_Pin  = GPIO_Pin_0;  //PA0   
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; //PA0   
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_ResetBits(GPIOA,GPIO_Pin_0); //PA0 

//初始化定时器5 TIM5  
TIM_TimeBaseStructure.TIM_Period = arr; // 
TIM_TimeBaseStructure.TIM_Prescaler =psc; //  
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //
TIM_TimeBaseInit(TIM5, &TIM_TimeBaseStructure); //
//初始化TIM5输入捕获参数
TIM5_ICInitStructure.TIM_Channel = TIM_Channel_1; //
  TIM5_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising; //
  TIM5_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI; //
  TIM5_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1; //
  TIM5_ICInitStructure.TIM_ICFilter = 0x00;//IC1F=0000 ¨
  TIM_ICInit(TIM5, &TIM5_ICInitStructure);

//中断分组初始化
NVIC_InitStructure.NVIC_IRQChannel = TIM5_IRQn;  //
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;  //先占优先级2级
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;  //从优先级0级
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //
NVIC_Init(&NVIC_InitStructure);  // 

TIM_ITConfig(TIM5,TIM_IT_Update|TIM_IT_CC1,ENABLE);//

    TIM_Cmd(TIM5,ENABLE ); //使能定时器5
   


}

u8  TIM5CH1_CAPTURE_STA=0; //输入捕获状态    
u16 TIM5CH1_CAPTURE_VAL; //输入捕获值
 
//定时器5中断服务程序  
void TIM5_IRQHandler(void)
{ 

  if((TIM5CH1_CAPTURE_STA&0X80)==0)//
{  
if (TIM_GetITStatus(TIM5, TIM_IT_Update) != RESET)
 
{    
if(TIM5CH1_CAPTURE_STA&0X40)//
{
if((TIM5CH1_CAPTURE_STA&0X3F)==0X3F)//
{
TIM5CH1_CAPTURE_STA|=0X80;//
TIM5CH1_CAPTURE_VAL=0XFFFF;
}else TIM5CH1_CAPTURE_STA++;
}  
}
if (TIM_GetITStatus(TIM5, TIM_IT_CC1) != RESET)//
{
if(TIM5CH1_CAPTURE_STA&0X40) //
{  
TIM5CH1_CAPTURE_STA|=0X80; //
TIM5CH1_CAPTURE_VAL=TIM_GetCapture1(TIM5);
  TIM_OC1PolarityConfig(TIM5,TIM_ICPolarity_Rising); //CC1P=0 
}else   //
{
TIM5CH1_CAPTURE_STA=0; //
TIM5CH1_CAPTURE_VAL=0;
TIM_SetCounter(TIM5,0);
TIM5CH1_CAPTURE_STA|=0X40; //
  TIM_OC1PolarityConfig(TIM5,TIM_ICPolarity_Falling); //CC1P=1 
}    
}           
  }
 
    TIM_ClearITPendingBit(TIM5, TIM_IT_CC1|TIM_IT_Update); //
 
}
以上定时器5通道1配置没有改变，是原子哥之前的程序，下面定时器4是自己改的，感觉有问题，自己找不出来
//定时器4通道1输入捕获配置
TIM_ICInitTypeDef  TIM4_ICInitStructure;

void TIM4_Cap_Init(u16 arr,u16 psc)
{  
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
    NVIC_InitTypeDef NVIC_InitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE); //使能TIM4时钟
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);  //使能GPIOD时钟

GPIO_InitStructure.GPIO_Pin  = GPIO_Pin_12;  //PD12  
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; //PD0 
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_ResetBits(GPIOD,GPIO_Pin_12); //PD0 

//初始化定时器4 TIM4  
TIM_TimeBaseStructure.TIM_Period = arr; //
TIM_TimeBaseStructure.TIM_Prescaler =psc; //   
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //
TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); //
  
//初始化TIM4输入捕获参数
TIM4_ICInitStructure.TIM_Channel = TIM_Channel_1; //CC1S=01
  TIM4_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising; //
  TIM4_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI; //
  TIM4_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1; //
  TIM4_ICInitStructure.TIM_ICFilter = 0x00;//IC1F=0000 
  TIM_ICInit(TIM4, &TIM4_ICInitStructure);

//中断分组初始化
NVIC_InitStructure.NVIC_IRQChannel = TIM4_IRQn;  //
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;  //先占优先级2级
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;  //从优先级0级
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //
NVIC_Init(&NVIC_InitStructure);  //

TIM_ITConfig(TIM4,TIM_IT_Update|TIM_IT_CC1,ENABLE);//

    TIM_Cmd(TIM4,ENABLE ); //使能定时器4
   


}

u8   TIM4CH1_CAPTURE_STA=0; //输入捕获状态    
u16 TIM4CH1_CAPTURE_VAL; //输入捕获值
 
//定时器4中断服务程序  
void TIM4_IRQHandler(void)
{ 

  if((TIM4CH1_CAPTURE_STA&0X80)==0)//
{  
if (TIM_GetITStatus(TIM4, TIM_IT_Update) != RESET)
 
{    
if(TIM4CH1_CAPTURE_STA&0X40)//
{
if((TIM4CH1_CAPTURE_STA&0X3F)==0X3F)//
{
TIM4CH1_CAPTURE_STA|=0X80;//
TIM4CH1_CAPTURE_VAL=0XFFFF;
}else TIM4CH1_CAPTURE_STA++;
}  
}
if (TIM_GetITStatus(TIM4, TIM_IT_CC1) != RESET)//
{
if(TIM4CH1_CAPTURE_STA&0X40) //
{  
TIM4CH1_CAPTURE_STA|=0X80; //
TIM4CH1_CAPTURE_VAL=TIM_GetCapture1(TIM4);
  TIM_OC1PolarityConfig(TIM4,TIM_ICPolarity_Rising); //
}else   //
{
TIM4CH1_CAPTURE_STA=0; //
TIM4CH1_CAPTURE_VAL=0;
TIM_SetCounter(TIM4,0);
TIM4CH1_CAPTURE_STA|=0X40; //
  TIM_OC1PolarityConfig(TIM4,TIM_ICPolarity_Falling); //
}    
}           
  }
 
    TIM_ClearITPendingBit(TIM4, TIM_IT_CC1|TIM_IT_Update); //清除中断标志位
 
}

lycreturn

TIM4_CH1是PB6,不是PD12

jhqcumt

回复【2楼】lycreturn:
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我也发现了是这么问题，谢谢你啦