RT685 GPIO Interrupt Handler not executing

mrichardson23 — Thu, 31 Aug 2023 17:54:06 GMT

So, I am trying to build out functionality and understand how everything fits together and I am having some trouble with a simple problem. I have put together a handler for systick that is functional, but when I try to add an interrupt for switch 2 on the rt685-aud-evk, the handler never executes when the switch is toggled. I have the following code:

if (EnableIRQ(SW_IRQ)) { PRINTF("Failed to enable interrupt\r\n"); } else { PRINTF("Interupt enabled\r\n"); } GPIO_SetPinInterruptConfig(GPIO, SW_PORT, SW_PIN, &config); GPIO_PinEnableInterrupt(GPIO, SW_PORT, SW_PIN, kGPIO_InterruptA);

where SW_IRQ is GPIO_INTA_IRQn and the config is for a trigger on a rising or falling edge. My interrupt handler looks like:

void SW_GPIO_INTA_IRQHandler(void) { GPIO_PinClearInterruptFlag(GPIO, SW_PORT, SW_PIN, 0); gpioIntSignal = true; SDK_ISR_EXIT_BARRIER; }

where SW_GPIO_INTA_IRQHandler is defined as GPIO_INTA_IRQHandler. I can see the switch toggling, but it seems that I am missing something with regards to actually using the handler. Any thoughts?

Re: RT685 GPIO Interrupt Handler not executing

kerryzhou — Mon, 04 Sep 2023 07:38:47 GMT

Hi @mrichardson23 ,

I think your main issue is related to the configuration, please refer to this SDK demo:

SDK_2_14_0_EVK-MIMXRT685\boards\evkmimxrt685\driver_examples\gpio\input_interrupt

It is also using GPIO_INTA_IRQn, GPIO_INTA_DriverIRQHandler.

Please refer to that code and try it.

#define APP_GPIO_INTA_IRQHandler GPIO_INTA_DriverIRQHandler
#define APP_SW_IRQ GPIO_INTA_IRQn

You still need the GPIO configuration:

GPIO_PortInit(GPIO, APP_SW_PORT);
GPIO_PinInit(GPIO, APP_SW_PORT, APP_SW_PIN, &sw_config);

Anyway, refer to the SDK, based on the SDK do the pin modification.

Wish it helps you!

Best Regards,

Kerry

topic RT685 GPIO Interrupt Handler not executing in i.MX RT Crossover MCUs

RT685 GPIO Interrupt Handler not executing

Re: RT685 GPIO Interrupt Handler not executing