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Powering down the ZedBoard at shutdown

Former Member

Hello everybody,
i'd like to power down the ZedBoard automatically when the shutdown command is issued, anybody has done it yet?

I was thinking of connecting a GPIO with proper level shifting to the EN/SLOPE pin of IC32 (VCC5V DCDC converter) better ideas?

C.

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    I have a question about the system level intent.  If you tie the EN/SLOPE pin to an FPGA open collector I/O pin, yes you can shut down power to the ZedBoard.  My question is would this I/O signal come from another board?  If the Zynq device sends a shutdown to the enable pin, once it does the board will power down and restart since the FPGA will lose it's configuration and release the enable signal.  If you want to shut down ZedBoard from another board, that would be ok as long as you don't have any other devices connected to I/O pins that might still be powered, say through the FMC or other I/O ports.  If the board is shut down, just make sure the FPGA can't see voltages on it's I/O pins.  I'm not sure if I properly answered your question.  Please let me know the specifics of what you are trying to do and maybe I can give you a better answer.
    Thanks
    Chris