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SubjectRe: A/D converter
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>The maximum number available is slightly less than 50,000. This is
>on my fastest dual-pentium 400 Mhz. Other machines I have tested are
>slower.

That equates to one interrupt every 20us, which seems pretty slow. Did you
attempt to discover what the bottleneck was? You might find that the parallel
port circuitry is slowing things down -- the ACK pin doesn't connect directly
to an interrupt line.

p.



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