Configure NFC pins as GPIO

[Bhumika]

Hi

I have a custom-designed board based on nrf52840 and on that board, I am using NFC pins as GPIO.

On Pin no 0.9 and 0.10, output peripherals are connected.

I have added  "CFLAGS += -DCONFIG_NFCT_PINS_AS_GPIOS=1" in makefile. Also when I read memory using "nrfjprog --memrd 0x1000120C", I get "0x1000120C: FFFFFFFE" as response.

But still, these pins are behaving as GPIO.

Please suggest what can be done. 

Thanks in anticipation.

[Einar Thorsrud]

Hi,

Everything looks correct for using the pins as GPIO's, and when you read FFFFFFFE from 0x1000120C that means that the pins are configured as GPIO pins. Can you elaborate on how this does not work?

[Bhumika]

hi,

I have the relay connected on GPIO pin (0,9) and pin (0,10). On giving set and reset commands on GPIO(0,9)  relay don't turn On.

[Einar Thorsrud]

I see. I am not able to explain this. Can you share your code (full project) so that I can look at it? And perhaps also schematics of your custom board? Alternatively a project that reproduce this issue on a DK so that I can test on my side.