UART Example Problem when changing pins

[TK Here]

Using the UART example of the 52DK with the TX and RX pins set as 8 and 6 the example works.  If I try to change the pins to different pins such as 22 and 23, it does not work by giving an UART Comm Error.  Problem is reported from the UART ISR.

[WestCoastDaz]

TK Here Which version of the 52DK are you using?  Is it the nRF52832(PCA10040) or the nRF52840 (PCA10056)?  Have you checked to see if those pins are available on the DK by reviewing DK hardware files?

[TK Here]

PCA10040 1.2.1 2017.45

Yes, pins should be free