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TPS65983B: TPS65983B: TPS65983B for Intel Titan Ridge restart problem

Chen Sid
Prodigy 30 points
Part Number: TPS65983B

We have a problem that the platform restart will black screen with connected a docking attached DP monitor.
We perform a reset with HRESET pin, the problem disappears.
The HRESET pin is reserved in TI TPS65983B spec, is the problem can be fixed by firmware?

  • 0
    TI__Expert 4455 points
    Hi Chen,

    The only restriction on HRESET in the datasheet is to ground the pin if HRESET functionality is not used.

    Are you able to capture PD traces? We can check to see if there is any issue with PD negotiation and entry into an alternative mode.

    Regards,
    Scott