On Fri, 9 May 2014 21:59:22 -0500 Bill Dailey <docdai...@gmail.com> wrote:
> I have the adafruit and a ublox-6T each mated to raspberry pi's. > With NTP they are essentially indistinguishable. I have something > other than NTP in mind for the 6Tpi. > > Sent from my iPad > > > On May 9, 2014, at 9:32 PM, Brian Lloyd <br...@lloyd.com> wrote: > > > > On Fri, May 9, 2014 at 8:49 PM, Chris Albertson > > <albertson.ch...@gmail.com>wrote: > > > >>> On Fri, May 9, 2014 at 1:55 PM, Brian Lloyd <br...@lloyd.com> > >>> wrote: > >>> > >>> Has anyone here made NTP run on BBB? My plan is to run NTP > >>> disciplined by my Trimble Thunderbolt on BBB. > >> > >> > >> NTP is likely already installed on the BBB. It ships with the BBB. > > > > > > That may be the case for the Angstrom distro but it is not the case > > for the Debian distro, which seems to be the future direction of > > BBB. > > > > > >> Some > >> configuration is needed to enable the service. Do this first and > >> verify you can run using Internet pool servers. Then after this > >> is running you physically connect your GPS then add lines in NTP's > >> config file telling NTP you have added another ref. clock. > > > > This link: > > > > http://the8thlayerof.net/2013/12/08/adafruit-ultimate-gps-cape-creating-custom-beaglebone-black-device-tree-overlay-file/ > > > > Seems to have the bulk of the requisite information including > > building a GPS cape using the Adafruit GPS module. See: > > > > https://www.adafruit.com/product/746 > > > > This isn't a timing receiver but would probably be adequate for > > NTP. But since I already have a T-bolt I figured I would use that > > as my timing source. > > > > -- I can tell you that the BBB is really reliable. You don't hear that about the R. Pi, plus it is about 4x the CPU power of the R PI, granted at $20 more cost. The R Pi has a better GPU if you need resolution. I'm running dump1090 on the BBB, for those familiar with the project. [Probably just "satellite Dave."] The only issue I found with the BBB is when I booted my router and the connection to the BBB didn't fire up. I probed the BBB with the serial port connector and it was running just fine, so I don't know why the router didn't connect to it. I booted the BBB and it did connect to the router. Reliability is of course key to any timing reference. Angstrom uses systemd. The R Pi is still on initd IIRC. Note a bug on the BBB is if you use a cape, it blocks the connector to the serial port. _______________________________________________ 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.