disabling Pin 21 of nrf52832

Question

Hi, 
 I want to use pin21 as normal GPIO ?How to disable reset on Pin 21 of nrf52832?

endnode · Accepted Answer

Simply define globally CONFIG_GPIO_AS_PINRESET , as per explanation in components	oolchain\system_nrf52.c file: 
 /* Configure GPIO pads as pPin Reset pin if Pin Reset capabilities desired. If CONFIG_GPIO_AS_PINRESET is not
 defined, pin reset will not be available. One GPIO (see Product Specification to see which one) will then be
 reserved for PinReset and not available as normal GPIO. */

kphalak · Answer

actually opposite of that. CONFIG_GPIO_AS_PINRESET should be removed if you want to use pin as GPIO.