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TUSB1146EVM: GPIO control mode not working

Fred P
Expert 2235 points

Part Number: TUSB1146EVM
Other Parts Discussed in Thread: TPS65987D

Hello,

Out-of-the-box, I²C control mode (JMP24 pos 1-2 and JMP4 pos 2-3) works.  I get a video feed on my monitor through the EVM.

However, GPIO control mode (JMP24 pos 2-3 and JMP4 pos 1-2) does not work.

Am I missing something? Any clue on what to check to have GPIO mode working?

Regards,

Frederic

  • 0
    Expert 2235 points

    There is a bug in the EVM project file.

    GPIO1 and GPIO2 mapped events need to be swapped so to match table 14 in TPS65987D datasheet.

    I did the swap and reflashed the EVM.  GPIO mode now works!

    Maybe you should release a new EVM binary...