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    SubjectRe: A/D converter
    On Wed, 21 Apr 1999, Philip Blundell wrote:

    > >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.
    >

    Yes it does. And, in fact, a simple real-mode DOS ISR which uses the same
    hardware (as stated) runs approximately 10 times faster. I get damn tired
    of having everybody and their brother "explain" that I don't know what
    I'm doing. I presented true, factual, information. It was not a complaint.
    It was just fact. Take it or leave it.



    Cheers,
    Dick Johnson
    ***** FILE SYSTEM WAS MODIFIED *****
    Penguin : Linux version 2.2.6 on an i686 machine (400.59 BogoMips).
    Warning : It's hard to remain at the trailing edge of technology.


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