how to enable rtt log?

[peter.min]

Hi,

I close the uart log and open the rtt log

why uart log can be used still?

why rtt log display error state?

I set the log config like this:

I set the test code like this

I test the log like this:

Thank you for all your assistance.
Kind regards,
Peter.Min

[Simonr]

Hi Peter

Are you sure that you've compiled and built the application again after you've set the UART backend to 0? If you have, a lot of the data seems somewhat jumbled up, are you positive that it is the logging information that is printed to UART? It looks like you need to increase the log backend queue size to get the correct output on your RTT viewer.

Best regards,

Simon

[peter.min]

Hi Simonr,

My configuration was to just print the RTT log and I recompiled the project.

How to increase the log backend queue size?

Thank you for all your assistance.
Kind regards,
Peter.Min

[Simonr]

This is discussed in detail in this case. Please give the methods described here a shot.

Best regards,

Simon

[peter.min]

Hi Simonr,

I tested it again and it was strange that this project could not turn off serial port printing.

Thank you for all your assistance.
Kind regards,
Peter.Min