NCS Low Power Button Press/Release Detection

RE: NCS Low Power Button Press/Release Detection

Sigurd — Fri, 20 Jan 2023 12:54:07 GMT

Hi,

I don't think that matters in recent versions of NCS. 1-2 years ago, EDGE interrupt in Zephyr used GPIOTE IN event, but it now support sense/port event as well.

RE: NCS Low Power Button Press/Release Detection

erickcinco — Thu, 12 Jan 2023 20:02:56 GMT

Sigurd I was using GPIO_INT_EDGE_BOTH for the flags param of gpio_pin_interrupt_configure_dt(). It looks like its working but should I use (GPIO_INT_ENABLE | GPIO_INT_LEVELS_LOGICAL | GPIO_INT_TRIG_BOTH) instead?

Referencing Marte Myrvold comment in RE: reducing current consumption of nrf5340 GPIO interrupts configured for edge triggering

RE: NCS Low Power Button Press/Release Detection

erickcinco — Thu, 12 Jan 2023 18:53:38 GMT

Thank you!

RE: NCS Low Power Button Press/Release Detection

Sigurd — Thu, 12 Jan 2023 12:47:08 GMT

Hi,

You need to set the sense-edge-mask in the devicetree for this. Like this:

https://github.com/nrfconnect/sdk-zephyr/blob/main/tests/drivers/gpio/gpio_basic_api/boards/nrf52840dk_nrf52840_sense_edge.overlay

See the description here: https://github.com/nrfconnect/sdk-zephyr/blob/main/dts/bindings/gpio/nordic,nrf-gpio.yaml#L17