Software interrupt doesn't work

z1060 · ‎2016-09-30

Posted on September 30, 2016 at 13:41

Hello!

I use STM32F429ZI and I try to set a software interrupt, but it doesn't work.

I set it as follows:

EXTI->IMR |= EXTI_IMR_MR0;

NVIC_SetPriority(EXTI0_IRQn, 15);

NVIC_EnableIRQ(EXTI0_IRQn);

__HAL_GPIO_EXTI_GENERATE_SWIT(EXTI_SWIER_SWIER0);

void EXTI0_IRQHandler (void)

{

SET(TEST_X2);//test point

}

Software interrupt is not trigered. Help me please. Am I missing something?

Thank you for your help.

Tesla DeLorean · ‎2016-09-30

Posted on September 30, 2016 at 15:13

SYSCFG clock enabled?

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slimen · ‎2016-09-30

Posted on September 30, 2016 at 15:35

Hello,

Make sure you've configured the pins, and that the GPIO and SYSCFG clocks are enabled.

Regards

z1060 · ‎2016-09-30

Posted on September 30, 2016 at 15:38

Yes, I use __HAL_RCC_SYSCFG_CLK_ENABLE(); in HAL_GPIO_Init