At 03:52 PM 11/23/2005, ecellison wrote:
Jim
Could we just not divide at all using the 1 pps gate and just use the
variance of the last 2 or three digits, and make the assumption that it was
accurate 200,000,xxx? I wouldn't think we would want to make any correction
in software more frequently than one second. Or perhaps we could store a
running average of the last three digits in an accumulator for the
comparison against the 'rock'.
Sure.. but the LSBs (which are the ones of interest) are the ones that have
to count the fastest, so you still need to have something running at 200 MHz.
Jim..
