tim1输入捕获设置问题

只看该作者 · 2016-1-13 20:39

我想用pe9作为tim1  通道1，设置如下，现在的问题是不能进入捕获中断。tim1 定时器中断能进入。

void TIM1_Int_Init(u16 arr,u16 psc)
{
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
NVIC_InitTypeDef NVIC_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE); //Ê±ÖÓÊ¹ÄÜ

//¶¨Ê±Æ÷TIM1³õÊ¼»¯
TIM_TimeBaseStructure.TIM_Period = arr; //ÉèÖÃÔÚÏÂÒ»¸ö¸üÐÂÊÂ¼þ×°Èë»î¶¯µÄ×Ô¶¯ÖØ×°ÔØ¼Ä´æÆ÷ÖÜÆÚµÄÖµ
TIM_TimeBaseStructure.TIM_Prescaler =psc; //ÉèÖÃÓÃÀ´×÷ÎªTIMxÊ±ÖÓÆµÂÊ³ýÊýµÄÔ¤·ÖÆµÖµ
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //ÉèÖÃÊ±ÖÓ·Ö¸î:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //TIMÏòÉÏ¼ÆÊýÄ£Ê½
TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); //¸ù¾ÝÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯TIMxµÄÊ±¼ä»ùÊýµ¥Î»

TIM_ITConfig(TIM1,TIM_IT_Update,ENABLE ); //Ê¹ÄÜÖ¸¶¨µÄTIM3ÖÐ¶Ï,ÔÊÐí¸üÐÂÖÐ¶Ï

//ÖÐ¶ÏÓÅÏÈ¼¶NVICÉèÖÃ
NVIC_InitStructure.NVIC_IRQChannel = TIM1_UP_IRQn;  //TIM1ÖÐ¶Ï
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;  //ÏÈÕ¼ÓÅÏÈ¼¶0¼¶
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 5;  //´ÓÓÅÏÈ¼¶3¼¶
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQÍ¨µÀ±»Ê¹ÄÜ
NVIC_Init(&NVIC_InitStructure);  //³õÊ¼»¯NVIC¼Ä´æÆ÷

TIM_Cmd(TIM1, ENABLE);  //Ê¹ÄÜTIMx
}

TIM_ICInitTypeDef  TIM_ICInitStructure;

void TIM1_Cap_Init(u16 arr,u16 psc)
{
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
   NVIC_InitTypeDef NVIC_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE|RCC_APB2Periph_AFIO, ENABLE); //Ê¹ÄÜGPIOEÊ±ÖÓ

//
GPIO_InitStructure.GPIO_Pin  = GPIO_Pin_9;  //PE9 Çå³ýÖ®Ç°ÉèÖÃ
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD; //PE9 ÊäÈë

GPIO_Init(GPIOE, &GPIO_InitStructure);
GPIO_ResetBits(GPIOE,GPIO_Pin_9);    //PE9 ÏÂÀ

GPIO_PinRemapConfig(GPIO_FullRemap_TIM1, ENABLE);

TIM_TimeBaseStructure.TIM_Period = arr; //ÉèÖÃÔÚÏÂÒ»¸ö¸üÐÂÊÂ¼þ×°Èë»î¶¯µÄ×Ô¶¯ÖØ×°ÔØ¼Ä´æÆ÷ÖÜÆÚµÄÖµ
TIM_TimeBaseStructure.TIM_Prescaler =psc; //ÉèÖÃÓÃÀ´×÷ÎªTIMxÊ±ÖÓÆµÂÊ³ýÊýµÄÔ¤·ÖÆµÖµ
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //ÉèÖÃÊ±ÖÓ·Ö¸î:TDTS = Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //TIMÏòÉÏ¼ÆÊýÄ£Ê½
TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure); //¸ù¾ÝÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯TIMxµÄÊ±¼ä»ùÊýµ¥Î»

//³õÊ¼»¯TIM1ÊäÈë²¶»ñ²ÎÊý

TIM_ICInitStructure.TIM_Channel = TIM_Channel_1|TIM_Channel_2|TIM_Channel_3|TIM_Channel_4; //CC1S=01 Ñ¡ÔñÊäÈë¶Ë IC1Ó³Éäµ½TI1ÉÏ
    TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising; //ÉÏÉýÑØ²¶»ñ
    TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI; //Ó³Éäµ½TI1ÉÏ
    TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;    //ÅäÖÃÊäÈë·ÖÆµ,²»·ÖÆµ
    TIM_ICInitStructure.TIM_ICFilter = 0x00;//IC1F=0000 ÅäÖÃÊäÈëÂË²¨Æ÷ ²»ÂË²¨
    TIM_ICInit(TIM1, &TIM_ICInitStructure);

//ÖÐ¶Ï·Ö×é³õÊ¼»¯
NVIC_InitStructure.NVIC_IRQChannel = TIM1_CC_IRQn;  //TIM1²¶»ñÖÐ¶Ï
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;  //ÏÈÕ¼ÓÅÏÈ¼¶2¼¶
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;  //´ÓÓÅÏÈ¼¶0¼¶
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQÍ¨µÀ±»Ê¹ÄÜ
NVIC_Init(&NVIC_InitStructure);  //¸ù¾ÝNVIC_InitStructÖÐÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯ÍâÉèNVIC¼Ä´æÆ÷

TIM_ITConfig(TIM1,TIM_IT_CC1,ENABLE);//ÔÊÐí¸üÐÂÖÐ¶Ï ,ÔÊÐíCC1IE²¶»ñÖÐ¶Ï

   TIM_Cmd(TIM1,ENABLE ); //Ê¹ÄÜ¶¨Ê±Æ÷1

}

void TIM1_UP_IRQHandler(void)
{
if (TIM_GetITStatus(TIM1, TIM_IT_Update) != RESET)  //¼ì²éTIM1¸üÐÂÖÐ¶Ï·¢ÉúÓë·ñ
{
TIM_ClearITPendingBit(TIM1, TIM_IT_Update  );  //Çå³ýTIMx¸üÐÂÖÐ¶Ï±êÖ¾
LED2=!LED2;
}
}

void TIM1_CC_IRQHandler(void)
{
LED4=!LED4;
if (TIM_GetITStatus(TIM1, TIM_IT_CC1) != RESET)  //¼ì²éTIM1²¶»ñÖÐ¶Ï·¢ÉúÓë·ñ
{
TIM_ClearITPendingBit(TIM1, TIM_IT_CC1  );  //Çå³ýTIMx¸üÐÂÖÐ¶Ï±êÖ¾

}
}

main
{
TIM1_Cap_Init(50000,719); //ÒÔ1MhzµÄÆµÂÊ¼ÆÊý

TIM1_Int_Init(50000,719);
}

注释都是乱码
哪位帮忙看下，哪里设置不对。谢谢！