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Altera_Forum
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15 years ago

ADV7181B and Clocked input megacore function

Hello could somebody help me? I need to interface the adv7181B (with an YCbCr 4:2:2) with the Clocked Video Input function, but I have no idea about the settings I have to use. I think that i ...
Altera_Forum's avatar
Altera_Forum
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15 years ago

@Phate,

May I ask how you have solved this problem? When I use the Test Pattern Generator (YCbCr, 8 bit, 4:2:2, Interlaced, Sequential) I get a correct image on the screen, so all the components between the generator and the VCO are correct. When I attach the TV Decoder, i just get a black (or grey) image, with a correct sync on the screen (well, most of the times).

I use the following signals with embedded sync signals:

TD_CLK

TD_DATA

TD_RESET

vid_locked and vid_datavalid are tied to VCC. Is this correct?

Any help would be appreciated!