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Old 17 October 2006, 21:59   #9
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Join Date: Sep 2006
Location: New Zealand
Posts: 55
Signal speed

Ok I think ive got this sussed now, looking at the scan doubler on aminet that you mentioned i think I know what it does, it doubles the sync yes but it times the writing of the colour data to the new sync pulse - thats where the timing comes from - now I understand what you are saying.

Looking at this circuit also - if you removed the output stages and converted the output to a digital signal using a 3 channel ADC you could then store the data to RAM on change of the timing pulse resulting in a frame (line) being in the devices ram.

I wonder how well flicker fixing would go if you read line 1 then line 2 while writing line 1 and so on, this would result in only a small a ram being required. duel ported ram could be used so that it could be written to on odd cycles and read from on even ones.

Just a thought
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