[LinuxPPS] NTP not using PPS

[Rodolfo Giometti]

On Wed, Oct 24, 2007 at 03:44:51PM -0000, susmi sarah george wrote:
> 
>    i configured my GPS Receiver for NMEA(RMC),
>    I used latest LinuxPPS Patch - ntp-pps-2.6.23-bis.diff
>    My ntp package is : ntp-4.2.4p4
>    i patched ntp package for Linuxpps Support bu using nmea.patch.
>    Kernel version :2.6.23rc2
> 
>    i am getting following outputs,but i dont know whether NMEA is taking pps
>    or not.No information about pps in kernel log messages.

You should receive such info in system log messages, not in kernel
one.

However you should see something like:

	refclock_nmea: found PSS source "/dev/pps0"

>    Please Help me how to check whether my time server is taking PPS or NOT
> 
>    root at localhost log]# dmesg
>    PPS event on source 3 at at 1193236985.781147147
>    capture assert seq #2788 for source 3
>    PPS event on source 3 at at 1193236986.520945043
>    capture clear seq #2789 for source 3
>    PPS event on source 3 at at 1193236986.780678343
>    capture assert seq #2789 for source 3
>    PPS event on source 3 at at 1193236987.520951972
>    capture clear seq #2790 for source 3
>    PPS event on source 3 at at 1193236987.780722708
>    capture assert seq #2790 for source 3
>    PPS event on source 3 at at 1193236988.520958638
>    capture clear seq #2791 for source 3

Great! Those are PPS events. :)

However I see "PPS event on source 3 at..." so maybe you should
provide /dev/pps3 to NTPD.

Ciao,

Rodolfo

-- 

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