CONFIGURE FOR NRESET P0.18 TO GPIO I/O

[Duong Nguyen]

Hi everyone,

I have a custom board in nrf52833. Currently, the gpios on nrf52833 are gone, except for the NReset pin (P0.18).
Can I configure the NReset GPIO as a GPIO I/O to use for my function?

file .dts:

&uicr {
	gpio-as-nreset;
};

I tried to configure:
CONFIG_GPIO_AS_PINRESET=n, but it doesn't work.



Please help me solution,

Thanks,

[Hieu]

Hi Duong,

If I think you misunderstood the DTS property gpio-as-nreset. You will want to not set it in this case.

If it is set in another file, and you need to overlay it away, you can use /delete-property/ as shown here:  Use RESET pin as GPIO - nRF52840 

Hieu

[Duong Nguyen]

Hi Hieu,

I added:
&uicr {
/delete-property/ gpio-as-nreset;
};

in the overlay file and tested with DK, but it doesn't work.