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Originally Posted by ppppenguin
What you really want is a small CPLD.
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I knew you'd say that! I know you find my adhesion to TTL/CMOS unfathomable
Quote:
Originally Posted by ppppenguin
Should be possible to get a Xilinx Coolrunner evaluation kit quite cheaply.
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But then I'd have to learn how to program it, and I'm monumentally lazy. I also think that would make any future 'production' cost more. At the moment, all the bits I've used really are bargain basement.
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Originally Posted by ppppenguin
Alternatively in CMOS etc the only sensible way to do it is with '163 chips.
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Nah! On this one I'm going to dare to fail to concur with your assertion! There was a reason I ruled out '163s at an early stage.
Quote:
Originally Posted by ppppenguin
I think RR used 12MHz because it allowed a convenient size PROM and ran a speed that was friendly to the PROM. It's pretty marginal for full bandwidth TV. 13.5MHz is the international standard for SDTV.
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I know what you're saying, but I reasoned that 720 pixels at 625 was fine for a still image. All the resolution bars are produced correctly. I could push it up to 13.5 (may need 55ns PROMs) if you think it would add a certain something I've overlooked
Parabola