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BZhu.4 · 2022-08-08

Try to implement an atomtic operation to avoid a specific interrupt generated by GPIOB GPIO_PIN_8 . If using the code as below, it works.HAL_NVIC_DisableIRQ(EXTI9_5_IRQn); //atomtic operationHAL_NVIC_EnableIRQ(EXTI9_5_IRQn); But tried the code as...

BZhu.4 · 2022-08-08

What said in last comment is not accuracy. From the logic analyzer, the interrupt pin is always pulled low.If use the following code, it's OK.HAL_NVIC_DisableIRQ(EXTI9_5_IRQn); //atomtic operationHAL_NVIC_EnableIRQ(EXTI9_5_IRQn);

BZhu.4 · 2022-08-08

Thanks!Tried the code as below: And confirmed IMR value has been changed. It doesn't enable/disable interrupt generated by GPIOB GPIO_PIN_8/* enable/disable nfc irq */void set_nfc_irq_callback(u8 enable){u32 value;if(enable){//HAL_NVIC_EnableIRQ(EX...

BZhu.4 · 2022-08-08

Thanks!Tried the code as below: And confirmed IMR value has been changed. It doesn't enable/disable interrupt generated by GPIOB GPIO_PIN_8/* enable/disable nfc irq */void set_nfc_irq_callback(u8 enable){ u32 value; if(enable) { //HAL_NVIC_Enable...

BZhu.4 · 2022-08-08

typo.But tried the code as following, it doesn't work. Using PB GPIO_PIN_8 as external interrupt.EXTI->IMR &= ~(EXTI_LINE_8);//atomtic operation EXTI->IMR |= (EXTI_LINE_8);

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