Interrupts on GPIO Pin

RE: Interrupts on GPIO Pin

Roiger — Tue, 18 Apr 2023 13:06:15 GMT

Good to know! Thanks very much!

RE: Interrupts on GPIO Pin

Edvin — Tue, 18 Apr 2023 13:02:10 GMT

Glad to hear.

By default, the NFC pins, P0.09 and P0.10 are not working as normal GPIOs, because they are reserved for the NFC peripheral. However, it is possible to use them as normal GPIOs, but it requires that config to be enabled. It is a common pitfall. At least if you are using custom boards. It is printed on the back of the DKs that these are not routed out to the headers, and that makes people start looking for how to do that, but if you don't see the print, it just looks like the pin is not working.

Best regards,

Edvin

RE: Interrupts on GPIO Pin

Roiger — Tue, 18 Apr 2023 12:30:07 GMT

Wow... works perfectly!
Thanks very much Edvin!

RE: Interrupts on GPIO Pin

Edvin — Tue, 18 Apr 2023 12:19:36 GMT

Hello,

I see that you are trying to use P0.10, which is one of the NFC pins on the nRF52833. Add the following config to prj.conf:

CONFIG_NFCT_PINS_AS_GPIOS=y

And give that a go. Let me know if it doesn't work.

Best regards,

Edvin