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Altera_Forum's avatar
Altera_Forum
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15 years ago

How to change output format in Clocked Video Output

Hi, I have a question relating to the output stage of my VIP system. I have my video path working sending out 1080p @ 60 from a frame buffer without issues. My goal is to have the system ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

I haven't actually done what you are trying to do, but based on the documentation and other VIP experience, I have a couple ideas:

1. Are you clearing the GO bit, waiting for the STATUS bit to be cleared and then setting the GO bit again? (See the Avalon-MM Slave Interfaces section of the VIP document for some more details).

2. The CVO supports multiple banks of output configurations. If you have a 60Hz configuration before the 50 Hz one, you must disable the 60Hz configuration for it to use the later one.