how to reduce NRF52840 GPIOTE's power consume under NCS 2.9.1 ?

RE: how to reduce NRF52840 GPIOTE's power consume under NCS 2.9.1 ?

always18 — Tue, 06 May 2025 05:12:31 GMT

ok，i see.

thanks

RE: how to reduce NRF52840 GPIOTE's power consume under NCS 2.9.1 ?

Vidar Berg — Tue, 06 May 2025 05:06:22 GMT

You can call gpio_pin_interrupt_configure_dt() with the GPIO_INT_DISABLE flag if you need to reset the configuration. But this is not necessary to reduce the power consumption when using PORT events

RE: how to reduce NRF52840 GPIOTE's power consume under NCS 2.9.1 ?

always18 — Tue, 06 May 2025 05:03:34 GMT

thanks,

Is it necessary to do something to reduce power consumption like these?

nrfx_gpiote_in_event_disable() 、nrfx_gpiote_in_uninit() and nrfx_gpiote_uninit().

 i can`t find zephyr api to do this


My prj.conf has included:

CONFIG_NRFX_GPIOTE0=y

CONFIG_PM_DEVICE=y

RE: how to reduce NRF52840 GPIOTE's power consume under NCS 2.9.1 ?

Vidar Berg — Tue, 06 May 2025 04:37:51 GMT

Hello,

You can use sense-edge-mask property in your gpio node(s) in your devicetree to make gpio_pin_interrupt_configure_dt() use PORT event for edge triggering. Unlike GPIOTE IN events, PORT events do not have any impact on the sleep current.

&gpio0 {
	/* Use PORT event rather than GPIOTE IN event, to save power */
	sense-edge-mask = <0xffffffff>;
};

Best regards,

Vidar