GD32F150的timer2输入捕获进不了中断

只看该作者 · 2021-4-27 14:19

void TIM2_init(void)
{

rcu_periph_clock_enable(RCU_GPIOA);
gpio_deinit(GPIOA);

/**************Pulse Input******************/
gpio_mode_set(GPIOA,GPIO_MODE_AF,GPIO_PUPD_NONE,GPIO_PIN_6);
gpio_af_set(GPIOA,GPIO_AF_1,GPIO_PIN_6);

timer_parameter_struct TIM2_BaseInitStructure;
timer_ic_parameter_struct TIM2_CaptureInitStructure;
rcu_periph_clock_enable(RCU_TIMER2);
timer_deinit(TIMER2);

TIM2_BaseInitStructure.prescaler       = 225;
TIM2_BaseInitStructure.alignedmode       = TIMER_COUNTER_EDGE;
TIM2_BaseInitStructure.counterdirection = TIMER_COUNTER_UP;
TIM2_BaseInitStructure.clockdivision    = TIMER_CKDIV_DIV1;
TIM2_BaseInitStructure.repetitioncounter = 0;
TIM2_BaseInitStructure.period             = 0xFFFFFFFF;
timer_init(TIMER2,&TIM2_BaseInitStructure);

TIM2_CaptureInitStructure.icpolarity = TIMER_IC_POLARITY_RISING;
TIM2_CaptureInitStructure.icselection = TIMER_IC_SELECTION_DIRECTTI;
TIM2_CaptureInitStructure.icprescaler = TIMER_IC_PSC_DIV2;
TIM2_CaptureInitStructure.icfilter    = 15;

timer_input_capture_config(TIMER2,TIMER_CH_0,&TIM2_CaptureInitStructure);
//timer_auto_reload_shadow_enable(TIMER2);

timer_interrupt_flag_clear(TIMER2,TIMER_INT_FLAG_CH0);
timer_interrupt_enable(TIMER2,TIMER_INT_CH0);
nvic_irq_enable(TIMER2,2,1);
timer_enable(TIMER2);

}

只看该作者 · 2021-4-27 14:22

void TIMER2_IRQHandler(void)
{
if(timer_interrupt_flag_get(TIMER2, TIMER_INT_FLAG_CH0)!= RESET)
{
timer_interrupt_flag_clear(TIMER2, TIMER_INT_FLAG_CH0);
}
if(timer_interrupt_flag_get(TIMER2, TIMER_INT_FLAG_UP)!= RESET)
{
timer_interrupt_flag_clear(TIMER2, TIMER_INT_FLAG_UP);
}
}

就是进不来，数据有。。。