nRF52 changing PIO from Analog to Digital Output

[Jagadish.H]

Dear Wang,

I am unable find any documentation and board Initialisation code on how to change PIO from analog to digital output. but can't seem to locate the setting.

Need PIO1 to operate in Digital mode. And similarly other PIOs as well.

Regards, jagadish.H

[Jørgen Holmefjord]

On the nRF52-DK you have to cut and solider SB1-SB4 to disconnect the external 32 kHZ crystal, to use the pins as GPIO. Make sure your application is not configured to use external crystal. To use RESET pin (P0.21) as GPIO, you need to remap the RESET pin in the UICR registers, and solider SB17 on nRF52-DK.