3 Nov
2013
3 Nov
'13
6:05 p.m.
On 11/03/2013 02:12 PM, Robert Jarratt wrote:
So, according to the manual I have, the data rate is
5megabits/sec. But, the
pulse width that you need to detect (and generate) is 50ns, requiring the
signal to be sampled at 25ns intervals, or 40MHz. Someone suggested to me
that even 40MHz may not be enough, but I have not had a reply back when I
asked what a better sampling frequency might be.
No, I don't agree--the pulse that comes from the drive is used as input
to an edge-triggered T-type flip-flop; the pulse width itself is
irrelevant--only the time between pulses.
--Chuck