Just shy of a half dozen folks have asked, so I'll post here as soon as I finish cleaning it up. I'll put it on Github when it's ready. I just need a day or two.
Sent from my iPhone > On Jan 13, 2016, at 6:43 AM, Nick Sayer via time-nuts <time-nuts@febo.com> > wrote: > > If anyone is interested in the equivalent functionality using an ATTiny25 > (for instance, if you’re already heavily invested in AVR instead of PIC, like > I am), ping me. I’ve privately written code to solve almost the same problem > and it could easily be adapted into doing the same job. > >> On Jan 13, 2016, at 5:23 AM, Edesio Costa e Silva <time-n...@tardis.net.br> >> wrote: >> >> Hi! >> >> Try TVB's picDiv at http://www.leapsecond.com/pic/picdiv.htm >> >> Edésio >> >>> On Wed, Jan 13, 2016 at 09:22:09AM +0000, Jerome Blaha wrote: >>> Hey Guys, >>> >>> Is there an easy circuit to build that can consistently deliver a 1 PPS >>> from a 10MHz source with excellent resolution and repeatability? My first >>> application is to test different 10MHz oscillators without a TIC always >>> attached and then compare the PPS output change over time against a master >>> GPSDO PPS with an HP53132A. >>> >>> The circuit used for PPS generation would have to deliver consistent PPS >>> output with preferably not more than 100ps noise or jitter, assuming a >>> perfect source. I'm totally guessing that for this resolution, the PPS >>> would have to be generated and accurate to within 0.001Hz every second. If >>> this is too difficult, maybe the integration time can be increased to >>> generate one pulse every 10second or every 100,000,000.00 cycles? >>> >>> Finally, is a square 10Mhz reference any better in this case than a >>> sinusoidal input for generating the PPS? >>> >>> Thanks, >>> Jerome >>> >>> _______________________________________________ >>> 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. >> _______________________________________________ >> 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. > > _______________________________________________ > 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. _______________________________________________ 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.
