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21615 Discussions

VGA issue

Altera_Forum
Honored Contributor II
‎01-19-2011 03:49 PM
1,100 Views

Hi 

 

I am working on digital image processing on cyclone II and having daughtercard tvp5146. 

Camera input in NTSC format and out from the cyclone II in VGA. 

In my design there is no error in compilation. 

But at the display (CRT display) the window appear : 

 

HF : 80KHz 

VF : 150Hz 

 

"operating frequency for CRT Display" 

HF : 30-71 KHz 

VF : 50-160Hz 

 

I donot know how to handle this, can anyone help me here to resolve this issue? 

Your suggestion will be appreciated. 

 

Thank You 

Rizwan
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Altera_Forum
Honored Contributor II
‎01-19-2011 05:11 PM
386 Views

The general idea is very clear in this link: 

http://www.cs.columbia.edu/~sedwards/classes/2010/4840/video.pdf
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