How to change Pin settings directly in the Register?

[Mechatroniker]

I want to change the GPIO settings for the pin P1.08 but in the register description (nRF52840_PS_v1.2.pdf)  there are only the names and offsets for the pins from P0.00 to P0.31.

- Where can I change the Instance from P0 to P1 and how can I write this in the code?

I need like this description for the pins with P1. ...

Thanks in advance

[Jørgen Holmefjord]

Hi,

The nRF52840 have two instances of the GPIO peripheral, P0 with pins from 0-31, and P1 with pins from 0-15. 

If you want to write to the pins on P1, you should use the P1 instance, e.g. for P1.08:

NRF_P1->PIN_CNF[8] = ...;

NRF_GPIO is mapped to the base address of P0, and cannot be use for interfacing pins on PORT P1.

Best regards,
Jørgen