Configuring GPIO pins on the nRF 52 DK as UART pins

[Aqib Mastan]

Hello

I'm trying to use GPIO pins as UART on the nRF 52 DK rather than the default UART pins. How do I change the pin configuration? 
I'm using nRF SDK version 17.1. 0

[Kenneth]

Hello,

Typically this is controlled through boards.h in the projects.

For instance the nRF52-DK use the BOARD_PCA10040:

#elif defined(BOARD_PCA10040)
#include "pca10040.h"

So if you open pca10040.h you can find (these can be changed as you want, as long as they don't overlap with any other usage in the file):

#define RX_PIN_NUMBER 8
#define TX_PIN_NUMBER 6
#define CTS_PIN_NUMBER 7
#define RTS_PIN_NUMBER 5
#define HWFC true

Kenneth