[time-nuts] CentOS 7, Motorola GPS receiver and NTP

Edesio Costa e Silva time-nuts at tardis.net.br
Wed Nov 26 13:36:59 EST 2014


Hello!

Current version of NTP supports Motorola Oncore and PPS. Take a look at
http://support.ntp.org/bin/view/Support/ConfiguringMotorolaOncoreRefclocks

Ed├ęsio

On Wed, Nov 26, 2014 at 11:49:59AM -0500, xaos wrote:
> Hello everyone.
> 
> Currently my Stratum 1 NTP server is made up of the following:
> 
> Pentium 4 Motherboard, Single core, 1.4GHz., 1GB memory
> Slackware Linux, 11.0.0
> PPSkit-2.1.7 Kernel
> uname -a:
> Linux timelord 2.4.33.3-NANO #1 Fri Nov 12 21:28:51 EST 2010 i686
> pentium4 i386 GNU/Linux
> 
> Motorola, GPS Receiver Version: 3, Revision: 1, Software Date: 1A30,
> Model: R5222U1114/[UT], Serial: R0AZSU
> 
> As far as I know the PPSKit was never released for the
> later kernels and this machine is showing it's age.
> I want to get a new box and run CentOS 7 on it.
> 
> Question: How do I setup NTP with a 1 PPS from serial port
> and the Motorola receiver hooked up?
> 
> I hope that some here have done this already and
> I wont have to start from scratch.
> 
> I was thinking about the Atom driver?
> How do I tell the driver to use the data from the serial port?
> 
> Any help would be greatly appreciated.
> 
> George, N2FGX
> 
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