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RJain.1
Associate III
March 12, 2025
Solved

USBPD GUI interface not working

  • March 12, 2025
  • 3 replies
  • 1043 views

Hi,

I have designed a custom board using STM32G431CB and TCPP03. I am trying to make as a sink device. I followed this video : https://youtu.be/cbdFHmMOMwk?si=GqcDTJeDxTsrFDiG

I have successfully generated and compiled the code. Also, i enabled the GUI interface and TRACE. I am able to get the trace messages in STM32CubeMonUCPD. But unable to see the GUI interface board port, I tried refreshing it several times but no luck . 

Please help.

Thanks in advance.

Best answer by FBL

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 tool. Otherwise, any competitor could use our tool.

3 replies

Technical Moderator
March 17, 2025

Hi @RJain.1 

Did you ensure that SysTick is initialized correctly ? Please attach .cpd file to dive further.

To give better visibility on the answered topics, please click on "Best answer" on the reply which solved your issue or answered your question.Best regards,FBL
RJain.1
RJain.1Author
Associate III
March 21, 2025

Hi @FBL ,

Yes, I have checked systick is working as expected. I am able to get the traces as shown below:

RJain1_0-1742567126177.pngRJain1_1-1742567150919.png

I am unable to get the .cpd file, just captured the traces in UCPD monitor. I am using monitor - UCPD 1.4.0

I have attached my .ioc file.

Please check the configurations.

I am stuck with the project, I just want to access the GUI Interface to get the SINK configuration. please help.

Thanks,

 

 

 

RJain.1
RJain.1Author
Associate III
March 23, 2025

Hi,

I can get the trace and GUI Interface by connecting the UART wires to ST-link UART, but why an ordinary USB to UART converter like CP2102 module cannot display the GUI Interface, only showing traces!!

Technical Moderator
March 25, 2025

Hi @RJain.1 

You can save the trace by simply clicking on save trace. 

FBL_2-1742898036159.png

 

Check demo implementation and UART configured for GUI interface as a reference.

To give better visibility on the answered topics, please click on "Best answer" on the reply which solved your issue or answered your question.Best regards,FBL
RJain.1
RJain.1Author
Associate III
March 25, 2025

Hi @FBL ,

Please check my above post:

Hi,

I can get the trace and GUI Interface by connecting the UART wires to ST-link UART, but why an ordinary USB to UART converter like CP2102 module cannot display the GUI Interface, only showing traces!!

FBLBest answer
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 tool. Otherwise, any competitor could use our tool.

To give better visibility on the answered topics, please click on "Best answer" on the reply which solved your issue or answered your question.Best regards,FBL
RJain.1
RJain.1Author
Associate III
March 26, 2025

Okay, got it.
Thanks!!