Problems waking up from Sleep using GPIO interrupt

[mraposo1]

I'm using my accelerometer's GPIO interrupt to wake up the MPU from PowerOFF mode and it works great.
Now, I'm trying to use the same interrupts to wake it up from Sleep mode, but it stays in Sleep mode and ignores the interrupts.


while (true)
{
   err_code = sd_app_evt_wait();  
   APP_ERROR_CHECK(err_code);
}

It stays there forever.
I already looked at other similar issues at the devZone and could not find a solution.

Could you help, please?

[Einar Thorsrud]

Hi,

The sense mechanism needed to wake up from system OFF is different from pin interrupt, so enabling sense for a pin to wake up from system OFF is not enough to get interrupts on that pin (which will wake up the device from system ON low power mode / sleep). How have you configured pin interrupt in your application? The Pin Change Interrupt Example demonstrates GPIO pin interrupts using the GPIOTE driver.