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cpu/stm32/gpio_f1: fix IRQ handler

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This commit is contained in:
Jue 2021-04-12 18:45:04 +02:00
parent 3571db64e6
commit 80360e5308
1 changed files with 5 additions and 2 deletions
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7
cpu/stm32/periph/gpio_f1.c
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@ -242,12 +242,15 @@ void gpio_irq_disable(gpio_t pin)
void isr_exti(void)
{
/* only generate interrupts against lines which have their IMR set */
uint32_t pending_isr = (EXTI->PR & EXTI->IMR & GPIO_ISR_CHAN_MASK);
/* read all pending interrupts wired to isr_exti */
uint32_t pending_isr = (EXTI->PR & GPIO_ISR_CHAN_MASK);
/* clear by writing a 1 */
EXTI->PR = pending_isr;
/* only generate soft interrupts against lines which have their IMR set */
pending_isr &= EXTI->IMR;
/* iterate over all set bits */
uint8_t pin = 0;
while (pending_isr) {