Cursor alway run to EXTI line when hold press button

[TMai]

Hi all,

I have a issue about interrupt timer and interrupt button. When i alway press button. Run debug, cursor alway run to interrupt exti line. I change timer 2,4 or pin exti still error occur. When I comment TIM1_Config() i alway press button-->interrupt button is ok. I use STM8S003F3, IDE IAR. Please help me! Thanks. Below code:

void EXTI_Config(void){

GPIO_Init(GPIOB, (GPIO_Pin_TypeDef)GPIO_PIN_4, GPIO_MODE_IN_PU_IT);

EXTI_SetExtIntSensitivity(EXTI_PORT_GPIOB, EXTI_SENSITIVITY_FALL_ONLY);

enableInterrupts();

}

----------------------------------------------------------------------------------------------

void TIM1_Config(void){

CLK_PeripheralClockConfig (CLK_PERIPHERAL_TIMER1 , ENABLE);

TIM1_DeInit();

TIM1_TimeBaseInit(7999, TIM1_COUNTERMODE_UP, 1999, 0);//interrupt 1s

TIM1_ARRPreloadConfig(ENABLE);

TIM1_ITConfig(TIM1_IT_UPDATE, ENABLE);

TIM1_ClearITPendingBit(TIM1_IT_UPDATE);

TIM1_Cmd(ENABLE);

enableInterrupts();

}

----------------------------------------------------------------------------------------------

INTERRUPT_HANDLER(TIM1_UPD_OVF_TRG_BRK_IRQHandler, 11){

count++;

TIM1_ClearITPendingBit(TIM1_IT_UPDATE);

}

----------------------------------------------------------------------------------------------

INTERRUPT_HANDLER(EXTI_PORTB_IRQHandler, 4){

if(GPIO_ReadInputPin(GPIOB,GPIO_PIN_4)==0) flag=~flag;

}

[S.Ma]

What exactly is needed functionality? This is order to step back from the chosen implementation.

[TMai]

Thanks your relay! I want when click button. EXTI occur flag=flag^1. Timer TIM1 interrupt after 1s, varible count++. But when I hole button. EXTI occur continuos and flag=flag^1,flag=flag^1,......