Uwe Klein <[EMAIL PROTECTED]> writes:

>Unruh wrote:

>> Since my GPS is only good to just under a usec, and since servicing of
>> interrupts is also at that level, it does not really seem to matter. The
>> program I wrote was to run off the parallel port interrupt, but it seems to
>> have about 2usec jitter on readout.
>That is about the time an 8Bit ISA buscycle takes +- .
>Is the jitterdistribution a gauss bell or a box?

>uwe

It seems to be a "bell". A bit hard to tell since the clock only has a usec
resolution, so one is working near the quantization limit. But it is
definitely larger than 1usec, and nearer 2.5-3usec.

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