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RJain.1
RJain.1
Associate III
March 12, 2025
Question

custom board using STM32G431 and TCPP03

  • March 12, 2025
  • 3 replies
  • 706 views

Hi @Susu ,

I have designed a custom board using STM32G431 and TCPP03, am able to see the debug traces in CubeMonUCPD. But unable to get the GUI interface and board is not detected. I have enabled the GUI interface in cubemx ,still not working.Can you please help! 

 

Thanks in advance!
edit: moved from STM32G4 UCPD:Debug issue - STMicroelectronics Community

3 replies

S
Susu
Associate
March 12, 2025

@RJain.1 

You can refer to this wiki ,Chapter 9.1.

But I have also tried to use a UART to USB converter (like CH340) to visualize debug trace, but get the same result as yours. It seems like that only using the onboard ST-LINK can work effectively.

RJain.1
RJain.1Author
Associate III
March 12, 2025

So, currently you are using ST-link with your custom board to access GUI_INTERFACE? 

S
Susu
Associate
March 12, 2025

Yep, using the Nucleo onboard ST-LINK.

 

    F
    FBL
    Technical Moderator
    March 26, 2025

    Hi @RJain.1 

    Only STMicroelectronics COM ports are authorized.

    In your specific case of a USB UART converter that appears as a COM port to the PC, it is excluded from the list of potential COM ports by the STM32CubeMonitor-UCPD. Otherwise, any competitor could use our tool.

    To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.Best regards,FBL
    RJain.1
    RJain.1Author
    Associate III
    April 3, 2025

    Hi @FBL , 

    The explicit contract has been completed correctly, but it is unable to select a source PDO (the Selected SRC PDO is empty, as shown in the image by the arrow).

     

    PFA, trace, and screenshot.

     

    RJain1_0-1743701045006.png

     

     

    I appreciate any help you can provide.

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