nrf51822 gpiote could not enter interrupt routine

[mm81]

Hello I am using SDK12.3 without softdevice on a custom board (with nrf51822 256k flash, 16kram without 32768 crystal).

I have written some code using GPIOTE to detect two buttons (with app_button library) when pressed and it worked no problem on nrf5 dev board.

However when i ported the code to the custom board i found that button press could only wake up the MCU but it won't enter the interrupt routine (button handler function).

Any idea could lead to this problem??

Thanks. MM

[Amigo]

NVIC_EnableIRQ(GPIOTE_Irqn) ?

[MartinBL]

1. So the exact same code works on the nRF51, but not your custom board?
2. I assume you have double checked that you use the correct pins?
3. Is there a reason why you configure Button 1 without pullup resistor, and button 2 with pullup?