AnsweredAssumed Answered

ADV7842 EDID output  problem

Question asked by BHMoon on Nov 29, 2010
Latest reply on Jan 6, 2011 by YannP

Hello

 

If i receive HDMI from Playstation3 to HDMI splitter, it`s OK.

If i receive HDMI from Playstation3 directly, PS3 check again olny header of EDID.

I wrote in EDID register "00 FF FF FF FF FF FF 00(header) 04 43 07~" (It`s from standard EDID document example)

and i can read same value from ADV7842 EDID map.

But if i read DDC through Osiloscope, it was not same.

"02 00 FF FF FF FF FF 00 missing ack 02 00 FF FF FF FF FF 00 missing ack ~ "

I can`t change first and second value 0x02 0x00.

It seems PS3 checked  EDID header and fail.

Do i have to setting more? I just set the script from ADI.

and it`s not an ADV7842P.

Please let me know to check more.

 

Thank you.

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