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Altera_Forum
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10 years ago

VIP Clocked Video Out Problem

I am having some problems with the VIP CVO IP. My QSYS core frequency is 100Mhz But my CVO IP output must run at a different frequency. Initially I used 44.8Mhz And it seemed to work ok. H...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

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The FR reads 32bit from DDR of which only 3*8=24 are needed that is where the CPS comes in to discard the upper 8 bits and stream only 24bits to the CVO. Yes, I can configure the FR to send only 3 color planes directly to the CVO, all compile, but no video comes out!!!

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Did you make any others changes in project when you change FR configuration from 4 bytes to 3 bytes?