关于定时器2和定时器5的输入捕获问题

c627933142

我仿照原子的例程写了定时器2的输入捕获代码 可是不能用 请大家帮忙看看
定时器2用的是3和4通道 对应PB10和PB11 定时器5用1和2通道 对应PA0 PA1
void PPM(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
TIM_ICInitTypeDef TIM5_ICInitStructure;
TIM_ICInitTypeDef TIM2_ICInitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;

RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5,ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA,ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB,ENABLE);

GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType=GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd=GPIO_PuPd_DOWN;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_0|GPIO_Pin_1;
GPIO_Init(GPIOA,&GPIO_InitStructure);

GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType=GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd=GPIO_PuPd_DOWN;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_10|GPIO_Pin_11;
GPIO_Init(GPIOB,&GPIO_InitStructure);

GPIO_PinAFConfig(GPIOA,GPIO_PinSource0,GPIO_AF_TIM5);
GPIO_PinAFConfig(GPIOA,GPIO_PinSource1,GPIO_AF_TIM5);
GPIO_PinAFConfig(GPIOB,GPIO_PinSource10,GPIO_AF_TIM2);
GPIO_PinAFConfig(GPIOB,GPIO_PinSource11,GPIO_AF_TIM2);

TIM_TimeBaseStructure.TIM_Prescaler=167;
TIM_TimeBaseStructure.TIM_Period=19999;
TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_TimeBaseInit(TIM5,&TIM_TimeBaseStructure);

TIM_TimeBaseStructure.TIM_Prescaler=167;
TIM_TimeBaseStructure.TIM_Period=19999;
TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_TimeBaseInit(TIM2,&TIM_TimeBaseStructure);

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;
TIM_ICInit(TIM5,&TIM5_ICInitStructure);

TIM5_ICInitStructure.TIM_Channel=TIM_Channel_2;
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;
TIM_ICInit(TIM5,&TIM5_ICInitStructure);

TIM5_ICInitStructure.TIM_Channel=TIM_Channel_3;
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;
TIM_ICInit(TIM2,&TIM2_ICInitStructure);

TIM5_ICInitStructure.TIM_Channel=TIM_Channel_4;
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;
TIM_ICInit(TIM2,&TIM2_ICInitStructure);

TIM_ITConfig(TIM5,TIM_IT_Update|TIM_IT_CC1,ENABLE);
TIM_ITConfig(TIM5,TIM_IT_Update|TIM_IT_CC2,ENABLE);
TIM_ITConfig(TIM2,TIM_IT_Update|TIM_IT_CC3,ENABLE);
TIM_ITConfig(TIM2,TIM_IT_Update|TIM_IT_CC4,ENABLE);

TIM_Cmd(TIM5,ENABLE);
TIM_Cmd(TIM2,ENABLE);

NVIC_InitStructure.NVIC_IRQChannel=TIM5_IRQn|TIM2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority=0;
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
}

void TIM5_IRQHandler(void)
{
  if((TIM5CH1_CAPTURE_STA&0X80)==0)//»¹Î´³É¹¦²¶»ñ
{
  if(TIM_GetITStatus(TIM5, TIM_IT_Update) != RESET)//Òç³ö
  {      
   if(TIM5CH1_CAPTURE_STA&0X40)//ÒѾ­²¶»ñµ½¸ßµçƽÁË
   {
    if((TIM5CH1_CAPTURE_STA&0X3F)==0X3F)//¸ßµçƽ̫³¤ÁË
    {
     TIM5CH1_CAPTURE_STA|=0X80;  //±ê¼Ç³É¹¦²¶»ñÁËÒ»´Î
     TIM5CH1_CAPTURE_VAL=0XFFFFFFFF;
    }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);
   }else         
   {
    TIM5CH1_CAPTURE_STA=0;   
    TIM5CH1_CAPTURE_VAL=0;
    TIM5CH1_CAPTURE_STA|=0X40;  
    TIM_Cmd(TIM5,DISABLE );  
     TIM_SetCounter(TIM5,0);
     TIM_OC1PolarityConfig(TIM5,TIM_ICPolarity_Falling);  
    TIM_Cmd(TIM5,ENABLE );
   }      
  }                     
  }
TIM_ClearITPendingBit(TIM5, TIM_IT_CC1|TIM_IT_Update);

if((TIM5CH2_CAPTURE_STA&0X80)==0)
{
  if(TIM_GetITStatus(TIM5, TIM_IT_Update) != RESET)
  {      
   if(TIM5CH2_CAPTURE_STA&0X40)
   {
    if((TIM5CH2_CAPTURE_STA&0X3F)==0X3F)
    {
     TIM5CH2_CAPTURE_STA|=0X80;  
     TIM5CH2_CAPTURE_VAL=0XFFFFFFFF;
    }else TIM5CH2_CAPTURE_STA++;
   }  
  }
  if(TIM_GetITStatus(TIM5, TIM_IT_CC2) != RESET)
  {
   if(TIM5CH2_CAPTURE_STA&0X40)   
   {      
    TIM5CH2_CAPTURE_STA|=0X80;  
     TIM5CH2_CAPTURE_VAL=TIM_GetCapture2(TIM5);
     TIM_OC2PolarityConfig(TIM5,TIM_ICPolarity_Rising);
   }else         
   {
    TIM5CH2_CAPTURE_STA=0;  
    TIM5CH2_CAPTURE_VAL=0;
    TIM5CH2_CAPTURE_STA|=0X40;  
    TIM_Cmd(TIM5,DISABLE );  
     TIM_SetCounter(TIM5,0);
     TIM_OC2PolarityConfig(TIM5,TIM_ICPolarity_Falling);  
    TIM_Cmd(TIM5,ENABLE );  
   }      
  }                     
  }
TIM_ClearITPendingBit(TIM5, TIM_IT_CC2|TIM_IT_Update);
}
void TIM2_IRQHandler(void)
{
  if((TIM2CH3_CAPTURE_STA&0X80)==0)
{
  if(TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET)
  {      
   if(TIM2CH3_CAPTURE_STA&0X40)
   {
    if((TIM2CH3_CAPTURE_STA&0X3F)==0X3F)
    {
     TIM2CH3_CAPTURE_STA|=0X80;  
     TIM2CH3_CAPTURE_VAL=0XFFFFFFFF;
    }else TIM2CH3_CAPTURE_STA++;
   }  
  }
  if(TIM_GetITStatus(TIM2, TIM_IT_CC3) != RESET)
  {
   if(TIM2CH3_CAPTURE_STA&0X40)   
   {      
    TIM2CH3_CAPTURE_STA|=0X80;  
     TIM2CH3_CAPTURE_VAL=TIM_GetCapture3(TIM2);
     TIM_OC3PolarityConfig(TIM2,TIM_ICPolarity_Rising);
   }else         
   {
    TIM2CH3_CAPTURE_STA=0;   
    TIM2CH3_CAPTURE_VAL=0;
    TIM2CH3_CAPTURE_STA|=0X40;  
    TIM_Cmd(TIM2,DISABLE );  
     TIM_SetCounter(TIM2,0);
     TIM_OC3PolarityConfig(TIM2,TIM_ICPolarity_Falling);  
    TIM_Cmd(TIM2,ENABLE );  
   }      
  }                     
  }
TIM_ClearITPendingBit(TIM2, TIM_IT_CC3|TIM_IT_Update);

if((TIM2CH4_CAPTURE_STA&0X80)==0)
{
  if(TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET)
  {      
   if(TIM2CH4_CAPTURE_STA&0X40)
   {
    if((TIM2CH4_CAPTURE_STA&0X3F)==0X3F)
    {
     TIM2CH4_CAPTURE_STA|=0X80;  
     TIM2CH4_CAPTURE_VAL=0XFFFFFFFF;
    }else TIM2CH4_CAPTURE_STA++;
   }  
  }
  if(TIM_GetITStatus(TIM2, TIM_IT_CC4) != RESET)
  {
   if(TIM2CH4_CAPTURE_STA&0X40)  
   {      
    TIM2CH4_CAPTURE_STA|=0X80;  
     TIM2CH4_CAPTURE_VAL=TIM_GetCapture4(TIM2);
     TIM_OC4PolarityConfig(TIM2,TIM_ICPolarity_Rising);
   }else         
   {
    TIM2CH4_CAPTURE_STA=0;   
    TIM2CH4_CAPTURE_VAL=0;
    TIM2CH4_CAPTURE_STA|=0X40;  
    TIM_Cmd(TIM2,DISABLE );  
     TIM_SetCounter(TIM2,0);
     TIM_OC4PolarityConfig(TIM2,TIM_ICPolarity_Falling);  
    TIM_Cmd(TIM2,ENABLE );  
   }      
  }                     
  }
TIM_ClearITPendingBit(TIM2, TIM_IT_CC4|TIM_IT_Update);
}

c627933142

问题找到了 只怪我太粗心了

c627933142

代码有点长 但格式是一样的 TIM5的能用但是TIM2的就不行

正点原子

这种问题，一般都不难，慢慢找

自动化学生

c627933142 发表于 2018-8-22 15:48
问题找到了 只怪我太粗心了

我也仿照原子例程写了定时器2的输入捕获程序，但也不好用，你在代码哪里错了啊？我还是没懂，

自动化学生

c627933142 发表于 2018-8-22 15:49
代码有点长 但格式是一样的 TIM5的能用但是TIM2的就不行

都为通用定时器，怎么又有什么大差别呢？