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ADV7619 HDMI Compliance Test Failure - follow-up questions

Question asked by chrismhyao on May 17, 2016
Latest reply on Jul 22, 2016 by JeyasudhaMuthuPerumal

this post is a follow-up of

ADV7619 HDMI Compliance Test Failure

 

In my last lab visit, while we can get the device to pass 8-7 jitter tolerance, I noticed that there are many times that the DUT was not able to detect the 4k2k 297Hz HDMI input (sourced from the Jitter tolerance test generator) at all after plugged in, and thus did not trigger any hardware interrupts for ADV7619 to detect the generator as a proper HDMI input.

In the lab test setup, only TMDS bus and the 5V input were connected.

 

With the same setup and DUT, the DUT can detect the generator properly some times. I double checked all the connections and did not find any connectivity issue.

 

Please help me to list all the possible interrupt sources that can wake up the ADV7619 via TMDS and 5V inputs?

I would like to pin down the cause of this issue.

thanks.

 

regards,

Chris

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