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March 30, 2025
Question

Unable to select SRC PDO

  • March 30, 2025
  • 1 reply
  • 795 views

Hi,

I am using a custom board based on STM32G4. I have successfully generated SINK code using cubemx and testing it using UCPDcube monitor. Explicit contract has done correctly but unable to select a source PDO.

 

PFA, trace, and screenshot.

 

RJain1_1-1743366126480.png

 

I appreciate any help you can provide.

@FBL , Can you please check

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    1 reply

    Technical Moderator
    April 22, 2025

    Hi @RJain.1 

    Did you check the demo provided here.

    It appears that the issue lies in the implementation of the USBPD_DPM_SNK_EvaluateCapabilities()function. This function is crucial for selecting the appropriate Source PDO.