Tom,
I think I wrote some VHDL code for a project like this... if I should
dig it out again?
Cheers,
Magnus
On 10/14/2014 11:19 PM, Tom Van Baak wrote:
Hi Simon,
Some additional info. I first heard about the D-FF method of frequency
comparison in the late 90's (from Rick Hambly, I think) on the old gps mailing
list. It sounded really interesting. Since then, the subject has turned up
every few years on this list. But each time, the topic seems to go away quietly
with little or no data, plots or explanation. In addition, none of the
commercial products I've taken apart appear to use this approach. Hmm. So that
begs the question -- what's really going on, and why.
I'm enjoying this thread because you've shown both technical competence and
optimistic persistence. Perhaps once and for all, with your efforts, we can
settle this matter. You will either find a working combination with excellent
performance, or you will uncover enough uncontrolled variables that you never
want to try it again. Either way, we all learn a lot. Keep the photos, data,
and plots coming.
Thanks,
/tvb
----- Original Message -----
From: "Simon Marsh" <subscripti...@burble.com>
To: <time-nuts@febo.com>
Sent: Tuesday, October 14, 2014 9:34 AM
Subject: Re: [time-nuts] Digital Mixing with a BeagleBone Black and D Flip Flop
Yes, I do understand I'm asking for trouble, though I kinda expected to
see more noise rather than less.
I guess its time to break out the soldering iron.
Cheers
Simon
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