NFC pins stuck in weird state

RE: NFC pins stuck in weird state

Alex_S@Aperia — Tue, 22 Oct 2024 16:21:28 GMT

Any update/guidance on this ? We definitely see it on multiple devices at this point

RE: NFC pins stuck in weird state

Alex_S@Aperia — Mon, 16 Sep 2024 14:39:14 GMT

Hi Sigurd !
There are several other boards in the field that experienced similar symptoms, so we suspect it happens on more than one device.
But we only got our hands on one of these and were able to inspect it with JTAG
Thank you,
Alex

PS Just for completeness of information, after reading similar tickets, CONFIG_NFCT_PINS_AS_GPIOS is set to 'n' in my case.

RE: NFC pins stuck in weird state

Sigurd — Mon, 16 Sep 2024 14:23:50 GMT

Hi!

I have not seen this behavior happen before.

Are you seeing this behavior on 1 nRF52833 device or do you see it on multiple nRF52833's ?

RE: NFC pins stuck in weird state

Alex_S@Aperia — Sat, 07 Sep 2024 20:42:15 GMT

Attached pdf shows comparison between select NFC registers during successful and stuck NFC read scenarios
Column C is a success case, column D - stuck

devzone.nordicsemi.com/.../Cyclone-1004C954-NFC-debug-_2D00_-Sheet1.pdf