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ADV7611 DE regeneration block failed

Question asked by goldbearhz on Dec 1, 2017
Latest reply on Dec 4, 2017 by JeyasudhaMuthuPerumal

ADV7611  DE regeneration block has not been locked.

 

Hi Engineer :

 

We are now debugging the ADV7611 ,sometimes it works fine,but sometimes it does not work.

the input source HDMI is fixed to 1280x1024@60,

 the IO & HDMI register are read as below

1. IO Map R0x6F  :   01
2. IO Map R0x6A  :    50@bad,  53@good
3. HDMI Map R0x04  :  23
4. HDMI Map R0x05  :  B0
5. HDMI Map R0x07  :  00@bad, a5@good

 

I check the adv7611 manual,it indicated that ADV7611  DE regeneration block has not been locked.So what caused that?

Thanks a lot!

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