RE: Changing default UART0 pins makes console print gibberish

newUser — Fri, 12 Jun 2020 12:40:23 GMT

This thread can be marked as resolved. A faulty connector was causing the problem.

RE: Changing default UART0 pins makes console print gibberish

newUser — Fri, 12 Jun 2020 10:05:06 GMT

Hi again Håkon,

[quote userid="2115" url="~/f/nordic-q-a/62511/changing-default-uart0-pins-makes-console-print-gibberish/254650"]Which UARTx interface are you using? I assume UARTE0, but have to ask.[/quote]

Yes, I am using UART0. I did not change the configurations in this regard. In short:
- I copied the board folder of the nRF9160DK
- Changed the file names and references
- Changed the UART0 TX and RX pins in the common.dts file
- Remapped some GPIO pins

So for example, I did not change the console to UART0 mapping.

[quote userid="2115" url="~/f/nordic-q-a/62511/changing-default-uart0-pins-makes-console-print-gibberish/254650"]Which pins are being used, and have you checked if anything else in your system is trying to use the same pins?[/quote]

I am using TX pin 27. I have done a in-file search through the whole board folder and my .c file, and I did not find any other hits for this pin.

[quote userid="2115" url="~/f/nordic-q-a/62511/changing-default-uart0-pins-makes-console-print-gibberish/254650"]Is it printing only jibberish, or is it "a bit off"?[/quote]

It is truely jibberish. The actual output is "▒▒▒Q▒▒57▒▒", but I would expect "Button pressed".

RE: Changing default UART0 pins makes console print gibberish

Håkon Alseth — Fri, 12 Jun 2020 09:55:17 GMT

Hi,

Which UARTx interface are you using? I assume UARTE0, but have to ask.

Which pins are being used, and have you checked if anything else in your system is trying to use the same pins?

Is it printing only jibberish, or is it "a bit off"?

Kind regards,

Håkon