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Explorer
Explorer
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Registered: ‎09-29-2018

ZCU102 DP PHY setting failed (suspect of failed board)

Hi,

We have a ZCU102 and used it for Displayport application. Things have been working fine and I was able to get DP output (vivado 2019.1). Later, the board was used to run some GPIO test. Now I re-run DP project, the DP TX PHY setting has failed. DP AUX read also failed. I used ZCU102 system control GUI to read voltage level, they are good. I also re-set frequency. Nothing helped the DP interface. I suspect the board is damaged during GPIO test but not sure, so I wonder if there's any board interface test I can run to identify the issue.

Thanks!

Regards,

Michelle

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Moderator
Moderator
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Registered: ‎11-09-2015

Hi @michelle 

Start by checking the register values of the Video Phy. Something might be flagged there.

Also, did it still happen after the board is power down after few hours?


Florent
Product Application Engineer - Xilinx Technical Support EMEA
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