Is It Possible to Check Print Statements and String Information in MCU Viewer?

[PrimaryK]

Hello,

I am one of the users who is really making great use of MCUViewer.

Currently, I have deployed various communication and motor control codes on FreeRTOS and am monitoring them through MCUViewer.

During debugging, there are times when I need to use strings or print statements. Is there any way to check these outputs? Alternatively, may I ask if this functionality will be supported in the future?

Thank you for creating such a great program!

[klonyyy]

Hello! Actually I haven't thought of such way of debugging as usually printf-like debugging has a lot of overhead. Since MCUViewer in Variable Viewer mode works by sampling variables I don't think it would be a good way for reading a buffer of chars (there could be update issues when the string changes during sampling). I can't say it won't ever be added, I just need a good idea for it - maybe you have something concrete on your mind :)?

[PrimaryK]

How about using SWV/ITM or SEGGER RTT to output your string? Both of these methods impose far lower overhead than a traditional printf and stream data in real time, effectively sidestepping MCUViewer’s sampling‑based limitations. I’ll think about this approach a bit more and follow up soon.