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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?

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  • +1

    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.

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  • +1

    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.

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