Unable to use NFC p0.10 as GPIO.

RE: Unable to use NFC p0.10 as GPIO.

Kazi Afroza Sultana — Thu, 25 May 2023 07:37:49 GMT

Hello,

It looks strange. Is everything else working as it should on the custom board apart from this NFC pin?

RE: Unable to use NFC p0.10 as GPIO.

noob_123 — Fri, 12 May 2023 11:28:59 GMT

In the prj.conf I am setting `CONFIG_NFCT_PINS_AS_GPIOS=y` and in the board overlay P0.10 is set active high using

<&gpio0 10 GPIO_ACTIVE_HIGH>;

and set as output using gpio_pin_configure_dt(&pin, GPIO_OUTPUT_INACTIVE);

I have checked the PCB using multimeter and the P0.10 is connected to the point where it is used.

Thanks

RE: Unable to use NFC p0.10 as GPIO.

Kazi Afroza Sultana — Fri, 12 May 2023 11:20:57 GMT

Hello,

nrfjprog --memrd 0x1000120C output as FFFFFFFF; so it seems pins 0.10 is configured as GPIO pin. Can you share the code you use to configure the pin as output and set it high?

I can not say surely what is the wrong with this custom board. Perhaps the GPIO pin is not routed to where you measure. Could you please check out your layout again? If you want can share with us also, I can make the case private.

Thanks.

Kazi