DTM custom board

[Gueston]

I want to use the Direct Test Mode software in the nRFConnect App for radio testing on my custom board, but it's not working. I suppose this is happening because I connect my custom board to the nordic devkit via SWDCLK, SWDIO, SWO for flashing and debugging via RTT. However I see that the DTM software uses UART.

Now my question is, can I assign any pin to use as UART? And if so, should I connect a wire from the corresponding UART pins (RxD, TxD etc.) to the devkit UART pins, and will I be able to communicate via UART or is there another way around to be able to use the DTM software with my custom board?

[Gueston]

Ok, I already managed to solve it. In case someone else encouters this problem. What I did is first get the sourcode of the DTM, which is found here

Then I adjusted the RxD, TxD, RTS, CTS pins of the source to the pins which I use on my custom board. Then I connected with wires (yes you need to solder ;)) from my custom board these pins to the pins on my devkit, which in my case is P05 to P08 on the DK52, so it has an UART connection.

[Håkon Alseth]

Hi!

I am glad to hear that you found a solution, and bonus points to you for also updating the case with the solution!

Hope you have a nice day!

Cheers,

Håkon