问答-
TIMER0的刹车中断死活进不去，这配置有问题吗
rcu_periph_clock_enable(RCU_GPIOB);gpio_mode_set(GPIOB,GPIO_MODE_AF,GPIO_PUPD_PULLUP,GPIO_PIN_12);gpio_af_set(GPIOB,GPIO_AF_2,GPIO_PIN_12);//PB12刹车功能，低电平有效timer_interrupt_enable(TIMER0,TIMER_INT_BRK);nvic_irq_enable(TIMER0_BRK_UP_TRG_COM_IRQn,2,3);//使能TIMER0的刹车中断voidTIMER0_BRK_UP_TRG_COM_IRQHandler(void)//入口和TIMER0更新复用{if(timer_interrupt_flag_get(TIMER0,TIMER_INT_FLAG_BRK)){timer_interrupt_flag_clear(TIMER0,TIMER_INT_FLAG_BRK);BRK_CNT=1000;gpio_bit_toggle(GPIOA,GPIO_PIN_7);//测试}if(timer_interrupt_flag_get(TIMER0,TIMER_FLAG_UP))｛timer_interrupt_flag_clear(TIMER0,TIMER_FLAG_UP);//更新PWM占空比｝}将PB12拉低电平PWM输出全部关闭，说明PB12配置正确，但就是进不去中断，示波器观察PA7口没反应，PA7口输出配置正确求知道，谢谢
2025-02-24 0
