Re: [time-nuts] Discipline an oscillator with NTP?
On Sat, Jul 23, 2011 at 8:17 PM, Don Latham d...@montana.com wrote: So, I essentially want to feed ntpd and its MSoft equivalents. I found the www.ntp.net site, that apparently has open software to do Use http://www.ntp.org/ instead. You can also look at the Public NTP pool project, http://www.pool.ntp.org/. Additional NTP links: http://support.ntp.org/bin/view/Main/ExternalTimeRelatedLinks US NIST Primary NTP servers http://tf.nist.gov/tf-cgi/servers.cgi Canadian government NTP servers http://www.nrc-cnrc.gc.ca/eng/services/inms/time-services/network-time.html UK National Physics Lab NTP servers http://www.npl.co.uk/science-technology/time-frequency/time/products-and-services/time-synchronisation-of-computers-to-utc%28npl%29 ___ 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.
Re: [time-nuts] 5370 firmware hacking status report
A quick check shows digikey sells them in single quantities, and has current stock. http://search.digikey.com/scripts/DkSearch/dksus.dll?Detailname=ADUM4160BRWZ-ND regards, Fred From: John Seamons j...@jks.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Sunday, July 24, 2011 11:05 PM Subject: Re: [time-nuts] 5370 firmware hacking status report On Jul 24, 2011, at 2:40 PM, Poul-Henning Kamp wrote: Ethernets big advantage is that it is galvanically isolated, USB is not. You had mentioned this issue in February. And since I currently flash using USB I went ahead and bought the evaluation card for the Analog Devices ADuM4160 power/signal isolator chip (see last pic on jks.com). Even though I programmed the GPIO pins on the micro for open drain I didn't know if the +5 on the USB from the host computer would fight the signals from the 5370. Plus I didn't want the ground loop. So the isolator chip splits the power domains and the micro is powered by +5 from the 5370. Works great. But I haven't found anyone who sells the chip in small quantities yet. You also had mentioned PyRevEng back then. I will try it. It will be very useful at this point. ___ 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.
Re: [time-nuts] 5370 firmware hacking status report
On Jul 25, 2011, at 2:32 PM, Tijd Dingen wrote: A quick check shows digikey sells them in single quantities, and has current stock. Good news. I hadn't checked for five months, but maybe my original search was faulty. Funny that they're $1.40 more expensive than the microcontroller ($10 vs $8.60 for 25 pieces). ___ 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.
