Use dtm via two-wire UART on custom BM833A

RE: Use dtm via two-wire UART on custom BM833A

JONATHAN LL — Tue, 26 Apr 2022 07:08:17 GMT

Hi,

Pleas update to DTM app v2.0.2 , should be a fix there now, see if it solves your issue.

Regards,
Jonathan

RE: Use dtm via two-wire UART on custom BM833A

JONATHAN LL — Thu, 21 Apr 2022 13:43:45 GMT

Tiny update,

Dev team has been informed and are looking in to add a update to include the option to select any comport not just the DK\debuggers.

Regards,
Jonathan

RE: Use dtm via two-wire UART on custom BM833A

JONATHAN LL — Wed, 13 Apr 2022 20:48:27 GMT

Hi Richard,

Sorry for the misunderstanding, I have requested that the developers comment on this issue, and why it is not possible to just select a serial port of choice, but due to Easter holiday you might not get a answer before next week.

Regards,
Jonathan

RE: Use dtm via two-wire UART on custom BM833A

RichardHdrd — Wed, 13 Apr 2022 06:03:01 GMT

Hi Jonathan,

Of course I did that - I thought, that was clear when I stated, that I even sent a test message via UART.

But I cannot select the UART, because the App "Direct Test Mode v. 2.0.1" from "nRF Connect for Desktop v3.11.0" doesn't allow to select /dev/ttyUSB0.

If I use the default Rx/Tx settings and the nrfBM833DK, I can select this nordic development kit in the App's dropdown list and it works.

If I instead connect my custom BM833 (with modifiied Rx/Tx rendering working /dev/ttyUSB0) the App's dropdown box is empty!

So, what do I need to do to be able to select /dev/ttyUSB0 as 2-wire DTM?

Best regards,

Richard

RE: Use dtm via two-wire UART on custom BM833A

JONATHAN LL — Tue, 12 Apr 2022 20:26:28 GMT

Hi,
When you build and compile the DTM sample you need to change the RX and TX_PIN_NUMBER to the correct ones you are using on your custom HW.

Regards,
Jonathan