On Mon, Jun 24, 2013 at 9:42 AM, Jaap Winius <[email protected]> wrote:
> On Mon, 24 Jun 2013 00:38:38 -0400, Jon Meek wrote: > > > Here is a good reference for the 4501 as a Stratum 1 NTP server: > > > > http://c59951.r51.cf2.rackcdn.com/5348-160-vandrunen.pdf > > Right, I needed to know that. Instead of Voyage Linux, the OS used in the > article is NanoBSD, but that's likely not important. The hardware > modifications are, which is why I wasn't receiving a PPS signal. Luckily, > the hardest part will be cutting a hole for the second COM port without > mangling the chassis too much. > > Thanks Jon, and good luck with your ALIX board project. > > Cheers, > > Jaap > > Here is some additional, possibly useful, information. Raspberry Pi NTP with PPS on GPIO pin: http://ntpi.openchaos.org/pps_pi/ Voyage Linux NTP with PPS on serial port: http://whatexit.org/~meekj/jon_meek_ntp_poster2009a.pdf I'm actually using my own 2009 work to adjust the Raspberry Pi implementation. Jon
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