How to detect GPIO interrupt source from deep sleep

RE: How to detect GPIO interrupt source from deep sleep

user75734 — Wed, 18 May 2022 05:58:14 GMT

I would suggest checking out this thread where my colleague Håkon discuss and explains how to use the DETECT signal and LATCH register. There are no example projects specifically showcasing the LATCH registers features, but any that use the nrfx_gpiote driver should be rather easy to implement.

Best regards,

Simon

RE: How to detect GPIO interrupt source from deep sleep

user116143 — Sat, 14 May 2022 18:18:15 GMT

Hm, that's a good idea! 👍 I'm using nRF52832, so it seams that LATCH is supported. Do you know if there is any application example that uses this feature?

RE: How to detect GPIO interrupt source from deep sleep

user18935 — Sat, 14 May 2022 08:57:08 GMT

Check if your chip supports the LATCH register in GPIO. The triggered pin should read a 1 in that register.