How to see LOG_INF, LOG_WRN messages, preferably in real time

RE: How to see LOG_INF, LOG_WRN messages, preferably in real time

DiBosco — Thu, 28 Nov 2024 13:04:50 GMT

I think I finally might have got somewhere with this. Found a third party article that explains it a bit more clearly. Am finally getting some stuff spat out to Terminal in VSC.

RE: How to see LOG_INF, LOG_WRN messages, preferably in real time

DiBosco — Thu, 28 Nov 2024 09:25:29 GMT

Hi, Sorry to be a pain, but this isn't helping me at all.

I can see those connected devices, but what do I do with them? How do I get things like this:

LOG_ERR("could not start the discovery procedure, error "
 "code: %d", err);

LOG_INF("MTU exchange done");

LOG_WRN("MTU exchange failed (err %" PRIu8 ")", err);

Appearing somewhere? I am guessing they get stored in a log 
file somewhere? Where? And even better can I make them appear, 
in real time, in some kind of debug window, whether it be a 
standard serial terminal like Cutecom, or in VSC? 

If it is possible what are the exact steps needed to make this 
happen?

I did manage after hours of trying one thing and another to get
stuff coming out of /dev/ttyACM0 in a termninal window on VSC, but
it just shoves out exactly
what comes out of the standard UART.

RE: How to see LOG_INF, LOG_WRN messages, preferably in real time

Sigurd — Wed, 27 Nov 2024 21:27:05 GMT

easiest way to open COM port in VS code, is to do it from the Connected device view:

https://docs.nordicsemi.com/bundle/nrf-connect-vscode/page/reference/ui_sidebar_connected_devices.html#view-actions

https://docs.nordicsemi.com/bundle/nrf-connect-vscode/page/guides/bd_work_with_boards.html#how-to-connect-using-serial-port

RE: How to see LOG_INF, LOG_WRN messages, preferably in real time

DiBosco — Wed, 27 Nov 2024 15:03:00 GMT

Sorry to mither, but any chance of a reply on this please?

RE: How to see LOG_INF, LOG_WRN messages, preferably in real time

DiBosco — Wed, 27 Nov 2024 14:03:36 GMT

I do have the extension pack installed, but there's no nrf terminal available. There's nrf serial terminal and nrf debug.

RE: How to see LOG_INF, LOG_WRN messages, preferably in real time

Sigurd — Wed, 27 Nov 2024 13:45:58 GMT

[quote user=""]How do you actually *see* them?[/quote]

If you are already using a sample that uses LOG messages, and looking for a tool that sees the logs, then I suggest either:

1) If you are using VS Code, we have the nRF terminal:

https://marketplace.visualstudio.com/items?itemName=nordic-semiconductor.nrf-terminal

2) You could also use our Serial Terminal app:

https://docs.nordicsemi.com/bundle/nrf-connect-serial-terminal/page/index.html

RE: How to see LOG_INF, LOG_WRN messages, preferably in real time

DiBosco — Wed, 27 Nov 2024 13:33:28 GMT

Thanks, but that doesn't really help in terms of how you'd assign it, set it up, point the debugging info/LOG messages etc to the different UART and it doesn't address whether it's possible with minimal effort with the segger interface.

RE: How to see LOG_INF, LOG_WRN messages, preferably in real time

Sigurd — Wed, 27 Nov 2024 13:30:19 GMT

Hi!

The nRF52840 has 2 UARTE instances, so you can use one for logging and the other your application.