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Atari coding BBS
| Detecting VIDEL clocks |
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Posted by: Peter
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Oct,07.2007-12:32
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The 32Mhz and EXT clock inputs can have just about any frequency nowadays. If I use one of them, I surely need to know which frequency it is.
A couple of methods pops up in my head:
- measuring the video address counter
- measuring the VBL frequency
- measuring the HBL frequency
Frankly, I don't know if any of this would gain proper results. Any thoughs on this matter?
-- Peter
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