On Wed, Jun 10, 2015 at 12:30 PM, Ed Armstrong <eds_equipm...@verizon.net> wrote:
> OK, here is the actual question. Do you think it is OK to consider a pulse > which arise 250 ns early to be close enough? And no, I am not forgetting > about that 3 ns, there is about 3 ns of delay added by the output circuitry. If you know what the offset is, and it is stable, (and you have shown you understand PCB traces, etc), I do not see how this is not OK. For someone like me, who cannot solder, and wants something off-the-shelf, it would be a problem. I would not know how to correct for the offset. If you are feeding this to NTP, the driver has a fuge factor, which you can use to consistently compensate for the 240ns (although I doubt the Pi is stable to that level). -- Sanjeev Gupta +65 98551208 http://www.linkedin.com/in/ghane _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
