nRF9160 wake up from button interrupt not working.

RE: nRF9160 wake up from button interrupt not working.

Håkon Alseth — Thu, 11 Jul 2019 14:21:28 GMT

Did you try the sample I posted?

RE: nRF9160 wake up from button interrupt not working.

rkreinin — Thu, 11 Jul 2019 13:57:01 GMT

I tried this but there was no difference. In my main function I have a simple while loop that increments a counter and prints the counter, and then does k_busy_wait(100000); If i switch out k_busy_wait for k_sleep(500), it won't go to sleep at all. "Sleeping" and "Waking" get printed but the counter just keeps incrementing and printing regardless of which state its in.

RE: nRF9160 wake up from button interrupt not working.

Håkon Alseth — Thu, 11 Jul 2019 11:39:26 GMT

Hi,

Try to use

k_cpu_idle();

instead of

__WFI();

I tested this with the following code:

devzone.nordicsemi.com/.../main.c

And do note the flags I put into the gpio configure:

gpio_pin_configure(gpio_dev, PIN, GPIO_DIR_IN | GPIO_INT | GPIO_INT_EDGE | GPIO_INT_ACTIVE_LOW | GPIO_PUD_PULL_UP);

Unless you have external pull resistor, you need to apply either pull up or pull down (depending on your active level).

Kind regards,

Håkon