stm32f030 tim3 4通道捕获没有反映？

只看该作者 · 2014-5-17 16:09

直接触发事件产生器，可以捕获，但引脚变化没有反映？大家分析一下。
void REMOTE_config(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;
  TIM_ICInitTypeDef  TIM_ICInitStructure;
  TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);//PA1
      RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);//PB1

  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 ;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOA, &GPIO_InitStructure);
  GPIO_PinAFConfig(GPIOA, GPIO_PinSource1, GPIO_AF_1);


  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_4 ;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOB, &GPIO_InitStructure);
  GPIO_PinAFConfig(GPIOB, GPIO_PinSource0, GPIO_AF_1);
  GPIO_PinAFConfig(GPIOB, GPIO_PinSource1, GPIO_AF_1);
  GPIO_PinAFConfig(GPIOB, GPIO_PinSource4, GPIO_AF_1);

  TIM_TimeBaseStructure.TIM_Period = 65535;
  TIM_TimeBaseStructure.TIM_Prescaler = 19;//24ms
  TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
  TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);

  TIM_ICInitStructure.TIM_Channel = TIM_Channel_1;
  TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Falling;
  TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI;
  TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;
  TIM_ICInitStructure.TIM_ICFilter = 0x00;
  TIM_ICInit(TIM3, &TIM_ICInitStructure);

  TIM_ICInitStructure.TIM_Channel = TIM_Channel_2;
  TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Falling;
  TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI;
  TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;
  TIM_ICInitStructure.TIM_ICFilter = 0x00;
  TIM_ICInit(TIM3, &TIM_ICInitStructure);

  TIM_ICInitStructure.TIM_Channel = TIM_Channel_3;
  TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Falling;
  TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI;
  TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;
  TIM_ICInitStructure.TIM_ICFilter = 0x00;
  TIM_ICInit(TIM3, &TIM_ICInitStructure);

  TIM_ICInitStructure.TIM_Channel = TIM_Channel_4;
  TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Falling;
  TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI;
  TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;
  TIM_ICInitStructure.TIM_ICFilter = 0x00;
  TIM_ICInit(TIM3, &TIM_ICInitStructure);


  TIM_ClearITPendingBit(TIM3,  TIM_IT_Update);
  TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);
  TIM_Cmd(TIM3, ENABLE);
}

只看该作者 · 2014-5-17 16:28

好了。
GPIO_PinAFConfig(GPIOA, GPIO_PinSource1, GPIO_AF_1);
改为
GPIO_PinAFConfig(GPIOA, GPIO_PinSource7, GPIO_AF_1);

只看该作者 · 2015-2-13 19:33

你好，你的STM32F030的输入捕获搞得怎么样了？我调试这块遇见了些问题。你程序能发我看看吗？谢谢 525739121@qq.com

1万 · 2015-2-14 18:34

帮忙顶一个。。

只看该作者 · 2015-4-29 15:51

我也遇到了同样的
问题
我是的是STM32F030F4

      GPIOB->MODER &= ~(3UL << 2*5);
   GPIOB->PUPDR &= ~(3UL << 2*5);
   GPIOB->PUPDR |=  (1UL << 2*5);
/////////////////////////////////////////////////////////
GPIOB->AFR[0] |= (1UL << 4*1);//PB1ÎªÆË×½ÊäÈëTIM3_CH4
  RCC->AHBENR |=  (1UL << 18);                /* Enable GPIOB clock       */

void TIM3_INIT(void)
{///TIM3_CH4
   RCC->APB1ENR |= (1UL << 1);//tim3 clock
   TIM3->SR=0;//¸´Î»×´Ì¬¼Ä´æÆ÷
TIM3->DIER|=1<<4;//ÔÊÐíÆË×½ÖÐ¶Ï
TIM3->PSC=71;//ÆµÂÊÉèÖÃ³É1M¡£Ê±¼ä1US
TIM3->ARR=10000;//10MSÒç³öÊ±¼ä
TIM3->CCMR2|=1<<8;//CC4ÉèÖÃ³ÉÊäÈë,IC4Ó³Éäµ½TI4ÉÏ;
TIM3->CCER&=~(1<<13);//CH4ÉÏÉýÑØÆË×½
TIM3->CCMR2|=3<<12;//½øÐÐÂË²¨´¦Àí
TIM3->CCER|=1<<12;//²¶»ñÊ¹ÄÜ
TIM3->CR1|=1<<0;//¼ÆÊýÊ¹ÄÜ

   NVIC->ISER[0]|=1<<16;
}

我在外部触发PB1都没有进入中断。没有反应。
请求LZ帮助