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Associate
April 27, 2026
Question

STM32CubeMonitor-UCPD altanative trace application w/STM32G071B-DISCO

  • April 27, 2026
  • 1 reply
  • 53 views

Hello,

I made a small USB Power Delivery trace/monitor tool using the STM32G071B-DISCO.

STM32CubeMonitor-UCPD v1.4 does not correctly decode some PDO types defined in USB-PD 3.0 and later (e.g., AVS), which makes analysis difficult.
So I put together a tool that can decode and visualize these PDOs more clearly.

Project repository:
https://github.com/aso/UCPD-Monitor

Example output is shown below:

[Screenshot:Apple40WSPRAVS.png]

Apple40WSPRAVS.png

 

Apple40W+AdpCheck_SPR-AVS.png



If you have a chance to try it, I’d be interested in any feedback or suggestions.


    1 reply

    AsOAuthor
    Associate
    April 27, 2026

    SPR-AVS well decoded.
    Apple40W_SPR-AVS.png