[求助] STM8S打开定时器中断，进入@far @interrupt void NonHandledInterrupt (void)

huzi741 2015-11-9 17:31 楼主

如题：STM8S系列单片机，TIM4作为基本的定时器，但是当中断打开以后，运行一段时间直接进入@far @interrupt void NonHandledInterrupt (void)，不知道为啥，TIM4初始化：
void TIM4_Init(void)
{
CLK->PCKENR1 |= 0x10; //enable TIM4;
TIM4->CR1 = 0x00 ;  /*!< control register 1 */
TIM4->IER = 0x01;  /*!< interrupt enable register */ //enable  update interrupt
TIM4->SR1 = 0x00;  /*!< status register 1 */
TIM4->CNTR = 0x00; /*!< counter register */
TIM4->PSCR = 0x07; /*!< prescaler register */
TIM4->ARR = 249; /*!< auto-reload register */
//TIM4->EGR = 0x01;  /*!< event generation register */
//enableInterrupts();
//TIM4->CR1 |= 0x01; // enable CEN
}
中断函数：
INTERRUPT_HANDLER(TIM4_UPD_OVF_IRQHandler, 23)
{
  /* In order to detect unexpected events during development,
   it is recommended to set a breakpoint on the following instruction.
  */
//TIM4_ClearITPendingBit(TIM4_IT_UPDATE);
TIM4->SR1 = 0xfe;       //clear UIF flag
//SysTaskFlag |= 0x01;
Gpio_Reverse(GPIOB,0x10);
SysTask10msCnt++;
if(SysTask10msCnt >= SYSTASK_10MS_CNT)
{
SysTask10msCnt = 0;
SysTaskTicksFlag |= 0x01;
}
SysTask100msCnt++;
if(SysTask100msCnt >= SYSTASK_100MS_CNT)
{
SysTask100msCnt = 0;
SysTaskTicksFlag |= 0x02;
SysTask1sCnt++;
if(SysTask1sCnt >= SYSTASK_1S_CNT)
      {
      SysTask1sCnt = 0;
SysTaskTicksFlag |= 0x08;
SysTask5sCnt++;
if(SysTask5sCnt >= SYSTASK_5S_CNT)
{
SysTask5sCnt = 0;
SysTaskTicksFlag |= 0x10;

}
SysTask1minCnt++;
if(SysTask1minCnt >= SYSTASK_1MIN_CNT)
{
SysTask1minCnt = 0;
SysTaskTicksFlag |= 0x20;

}

}

}
SysTask500msCnt++;
if(SysTask500msCnt >= SYSTASK_500MS_CNT)
{
SysTask500msCnt = 0;
SysTaskTicksFlag |= 0x04;
}
}
主函数：
main()
{
SysClkInit();
Gpio_Init_Set();
TIM4_Init();
GPIOB->ODR = 0x00;
delayxus(100);
GPIOB->ODR |= 0x30;
enableInterrupts();
TIM4->CR1 |= 0x01;
while (1)
{
      //delayxus(1000);
      //GPIOB->ODR = 0x00;
//GPIO_TEST_Cnt++;
//if(  GPIO_TEST_Cnt == 40000)
      //{
         GPIO_TEST_Cnt = 0;
//    Gpio_Reverse(GPIOB,0x30);
      //}
      if((SysTaskTicksFlag & 0x08) == 0x08)
      {
      SysTaskTicksFlag &= 0xf7;
Gpio_Reverse(GPIOB,0x20);
}

}
}
求大神们指教。

回复评论（5）

沙发 huzi741

如果屏蔽掉中断使能函数 enableInterrupts();程序可以正常运行

点赞 2015-11-9 17:32

板凳 huzi741

我知道问题在哪里啦，是中断向量没有配置
struct interrupt_vector const _vectab[] = {
{0x82, (interrupt_handler_t)_stext}, /* reset */
{0x82, NonHandledInterrupt}, /* trap  */
{0x82, NonHandledInterrupt}, /* irq0  */
{0x82, NonHandledInterrupt}, /* irq1  */
{0x82, NonHandledInterrupt}, /* irq2  */
{0x82, NonHandledInterrupt}, /* irq3  */
{0x82, NonHandledInterrupt}, /* irq4  */
{0x82, NonHandledInterrupt}, /* irq5  */
{0x82, NonHandledInterrupt}, /* irq6  */
{0x82, NonHandledInterrupt}, /* irq7  */
{0x82, NonHandledInterrupt}, /* irq8  */
{0x82, NonHandledInterrupt}, /* irq9  */
{0x82, NonHandledInterrupt}, /* irq10 */
{0x82, NonHandledInterrupt}, /* irq11 */
{0x82, NonHandledInterrupt}, /* irq12 */
{0x82, NonHandledInterrupt}, /* irq13 */
{0x82, NonHandledInterrupt}, /* irq14 */
{0x82, NonHandledInterrupt}, /* irq15 */
{0x82, NonHandledInterrupt}, /* irq16 */
{0x82, NonHandledInterrupt}, /* irq17 */
{0x82, NonHandledInterrupt}, /* irq18 */
{0x82, NonHandledInterrupt}, /* irq19 */
{0x82, NonHandledInterrupt}, /* irq20 */
{0x82, NonHandledInterrupt}, /* irq21 */
{0x82, NonHandledInterrupt}, /* irq22 */
//{0x82, (interrupt_handler_t)TIM4_Overglag_Interrupt}, /* irq23 */
{0x82,TIM4_UPD_OVF_IRQHandler},
{0x82, NonHandledInterrupt}, /* irq24 */
{0x82, NonHandledInterrupt}, /* irq25 */
{0x82, NonHandledInterrupt}, /* irq26 */
{0x82, NonHandledInterrupt}, /* irq27 */
{0x82, NonHandledInterrupt}, /* irq28 */
{0x82, NonHandledInterrupt}, /* irq29 */
};
太大意啦，希望大家以此为戒。

点赞 2015-11-9 18:27