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TPS65982: 4CC Command useing

Huazi
Prodigy 200 points
Part Number: TPS65982

Hi Team,

I take TPS65982 as a PD Sink role,when I rewrite the TX Sink Capabilities Register(0x33),how should I update the message to the far-end Source Device?

Now i can do it by used 4CC "HRST" Command,but there is 1 second delay when Hard Rest is going;

Is there any other way faster?

In addition,when i use 4CC "CRST" Command,i can ont see any change on the CC Cable(using the Power Delivery Protocol Analyzer to monitor),it is why?

  • 0
    TI__Mastermind 36756 points

    Hi Huazi,

    The easiest way would be to send the GSrC command to renegotiate the PD contract after you updated the Sink Capabilities. This would force the Source to send it's source capabilities again and your Sink device would request the correct voltage based on the new Sink Capabilities that you adjusted.

    If this answers your question, PLEASE select This resolved my issue

    Thank you,

    Eric