Garbled UART console output on Thingy:91 X

[cgnd_chris]

I'm seeing garbled/malformed UART console output when running apps on the Thingy:91 X. This includes pre-built apps from Nordic and custom apps I build myself.

Here's an example running the pre-built thingy91x_hello.nrfcloud.com_v2.0.2.hex binary from Nordic:

Here's another example running the pre-compiled Thingy:91 Example app from Golioth:

I'm seeing the same behavior on multiple Thingy:91 X devices on different host machines (both Mac and Windows).

Any idea what might be causing this issue? Could this be an issue with the Connectivity Bridge firmware on the nRF53?

[dejans]

Hi,

Do you get the same result if you use Serial Terminal application for viewing log output?

You could try to use USB to TTL converter to check if you get the same output. You can look at discussion in this ticket.

Best regards,
Dejan

[Achim Kraus]

dejans said:

You could try to use USB to TTL converter to check if you get the same output.

Just from my ticket:

I put my app in nearly the same version on a Thingy:91X and a nRF9151-DK (same NCS version, different board supports).

"Ghost-chars" on the Thingy:91X on "faster output".

No such "Ghost-chars" on the nRF9151-DK, even on "faster output".

Yes, some one may try, if using a USB to TTL will change that, but I don't consider to spend more time into this.