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ADV7393 Black Bar Test Pattern - SD does not work

Question asked by buffteethr on Apr 19, 2011
Latest reply on Apr 21, 2011 by PaulS

I protoyped a new monochrome camera design using a xilinx eval board, aptina sensor and adv7393 eval board. However, the image does not seem to very much range between light and dark pixels. I decide to put the adv7393 in black bar test pattern mode in NTSC mode. As you can see in the picture the output does not match a true ntsc black bar test pattern. There is very little gradiation between lightest to darkest pixel.

 

Has anyone gotten the black ar test pattern to work on the ADV7393?

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