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TPS65994AE: GPIO9 behavior on TPS65994BF

Christina Lim
Expert 6305 points
Part Number: TPS65994AE

Hi,

May I know if there is any documentation or flow of how GPIO9 is controlled active (off and on) state during

    • PD power on and load EEPROM
    • update PD FW?
    • PD need access APU I2C (should be keep high)

My customer is seeing some strange behavior on GPIO9 which may be address if they understand how our firmware is controlling the GPIO9 during the above operation.

Thanks,

Christina

  • 0
    TI__Mastermind 32611 points

    Christina,

    The GPIO operation is configured in the Application Configuration GUI.  It will be mapped to a specific event.

    Please check the Application Configuration GUI IO Configuration register and let me know what event is configured and I can help with what should be happening.

    Regards,

    Chuck