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Altera_Forum
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13 years ago

horizontal blanking problem with D5M on tPaD board

I am having the following problem with the duration of horizontal blanking at the D5M's output. I have tried two image sizes with the same result, 1920x1080 and 800 x 600, no binning. Horizonta...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Some more analysis shows a regular behaviour which is either not documented or I am simply a lame...

When there is no binning, there are 276 extra cycles in horizontal blanking

When there are both horizontal and vertical binning equalling 1, there are 552 = 2 * 276 extra cycles in horizontal blanking.

Regardless the image width in both cases!

So 276 is the magic number, but I could not find it mentioned in the documentation.

I hope there is somebody experienced in this, able to advise.

Cheers