GD32F150R定时器中断问题

只看该作者 · 2016-10-29 16:51

定时器中断的配置没有什么问题，可是中断服务函数进去后不知道为什么出不来，求大神帮忙分析一下，程序在下面：
int main(void)
{
/* Init Test Status LED */
TestStatusLedInit();
SysTick_Configuration();//Òª·ÅÔÚ¿¿Ç°µÄÎ»ÖÃ
/* Flash LED for test */
FlashLED ( 5  );

NVIC_Configuration();

GPIO_Configuration();
TIM2_Int_Init(499,7199);
while (1)
{
}

}

//TIM2µÄ¶¨Ê±Æ÷ÖÐ¶Ï³õÊ¼»¯
//arr£º×Ô¶¯ÖØ×°Öµ
//psc£ºÊ±ÖÓÔ¤·ÖÆµÊý
void TIM2_Int_Init(uint16_t arr,uint16_t psc)
{
TIMER_BaseInitPara  TIM_TimeBaseStructure;

RCC_APB1PeriphClock_Enable(RCC_APB1PERIPH_TIMER2, ENABLE);

//³õÊ¼»¯TIM3
TIMER_DeInit(TIMER2);
TIM_TimeBaseStructure.TIMER_Period = arr; //ÉèÖÃÔÚÏÂÒ»¸ö¸üÐÂÊÂ¼þ×°Èë»î¶¯µÄ×Ô¶¯ÖØ×°ÔØ¼Ä´æÆ÷ÖÜÆÚµÄÖµ
TIM_TimeBaseStructure.TIMER_Prescaler =psc; //ÉèÖÃÓÃÀ´×÷ÎªTIMxÊ±ÖÓÆµÂÊ³ýÊýµÄÔ¤·ÖÆµÖµ
TIM_TimeBaseStructure.TIMER_ClockDivision = TIMER_CDIV_DIV1; //ÉèÖÃÊ±ÖÓ·Ö¸î:TDTS = Tck_tim
TIM_TimeBaseStructure.TIMER_CounterMode = TIMER_COUNTER_UP;  //TIMÏòÉÏ¼ÆÊýÄ£Ê½
TIMER_BaseInit(TIMER2, &TIM_TimeBaseStructure); //¸ù¾ÝTIM_TimeBaseInitStructÖÐÖ¸¶¨µÄ²ÎÊý³õÊ¼»¯TIMxµÄÊ±¼ä»ùÊýµ¥Î»

TIMER_CARLPreloadConfig(TIMER2,ENABLE);

TIMER_INTConfig(TIMER2,TIMER_INT_UPDATE,ENABLE);

TIMER_Enable(TIMER2, ENABLE);
}

void GPIO_Configuration(void)
{
GPIO_InitPara GPIO_InitStructure;
RCC_AHBPeriphClock_Enable(RCC_AHBPERIPH_GPIOC ,ENABLE);

/*Configure PA8(TIMER1 CH1) as alternate function*/
GPIO_InitStructure.GPIO_Pin = GPIO_PIN_11;
GPIO_InitStructure.GPIO_Mode  = GPIO_MODE_OUT;
GPIO_InitStructure.GPIO_Speed = GPIO_SPEED_50MHZ;
GPIO_InitStructure.GPIO_OType = GPIO_OTYPE_PP;
GPIO_InitStructure.GPIO_PuPd  = GPIO_PUPD_NOPULL;
GPIO_Init(GPIOC,&GPIO_InitStructure);

}

/**
  * @brief  Configure the nested vectored interrupt controller.
  * @param  None
  * @retval None
  */
void NVIC_Configuration(void)
{
NVIC_InitPara NVIC_InitStructure;

NVIC_PRIGroup_Enable(NVIC_PRIGROUP_1);

/* Enable the TIMER3 Interrupt */
NVIC_InitStructure.NVIC_IRQ             = TIMER2_IRQn;
NVIC_InitStructure.NVIC_IRQPreemptPriority = 0;
NVIC_InitStructure.NVIC_IRQSubPriority    = 1;
NVIC_InitStructure.NVIC_IRQEnable       = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}

只看该作者 · 2016-10-29 16:52

这是中断服务函数
void TIMER2_IRQHandler(void)
{
if(TIMER_GetIntBitState(TIMER2,TIMER_INT_UPDATE)!=0)
{
TIMER_ClearIntBitState(TIMER2,TIMER_INT_UPDATE);
GPIOC->DOR ^= GPIO_PIN_11;

//GPIOC->BOR = GPIO_PIN_11;
}
}