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Altera_Forum
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12 years ago

Using VIP suite for Up-Scaling.

Hello, I am using VIP suite and SDI Ip core for converting DVI video input to 3G-SDI video output for sending video to long distance (150 mtrs). For the input DVI resolution 1600X1200 @60Hz, ...
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Altera_Forum
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12 years ago

See "Overflow" on page 11-7 of http://www.altera.com/literature/ug/ug_vip.pdf

In your system, Scaler will assert backpressure as it outputs the pixels between 1280 and 1920 on each line. The first few lines work OK because the FIFO hasn't filled up yet.

As fpgajeg mentioned, you can solve it with different clocks and/or frame buffer.