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Altera_Forum's avatar
Altera_Forum
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16 years ago

detect video Signal

hello, could someone explain me this following code? i have found it in a demo application but with no Comments. thank you module sigdetect( oTD_Stable, iTD_VS, iTD_HS, ...
Altera_Forum's avatar
Altera_Forum
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16 years ago

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i cannot find this info that the V-blank is 9 horizontal sync pulses, can you give me more details...thanks

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It's depend on video signal. Different video signal have different parameter. The exactly 9 pulses looks very strange. Usually for video signal specified duration of V-blank, H-blank. And not exactly. You can find parameters for PAL or SECAM or VGA.