GPIO interrupt does not occur when STM32_WPAN middleware is enabled

[TTaka.19]

​I am using P-NUCLEO-WB55.

I set 3 buttons (SW1 / SW2 / SW3) to GPIO_EXTI. I confirmed that an interrupt is generated when the button is pressed.

After that, if the middleware STM32_WPAN (BLE) is enabled, no interrupt will occur even if the button is pressed.

How can I use GPIO interrupts with STM32_WPAN enabled?

[TTaka.19]

Sorry.

The cause was that IPCC interrupts were not enabled.

[LWChris]

Hi, it seems like I have a very similar problem, but I'm not using the STM32_WPAN middleware, yet GPIO interrupts are very unreliably triggered. I would like to try your solution, but where do you enable those IPCC interrupts? I went to System Core > IPCC, set it to "Activated" and checked both checkboxes in Configuration, but that didn't make a difference at all. Anything else you did for your solution?

[TTaka.19]

Yes.

I selected "System Core"-> "IPCC" and checked "Activated" to enable IPCC. Then pressing the switch will generate a GPIO interrupt.