[LinuxPPS] Tentative Success using git:linuxpps and ntp-4.2.4 ; and a question

[Udo van den Heuvel]

Scott Doty wrote:

[interesting info snipped]

> Here's the thing, though -- when I run ntptime, I get:
> 
>       _[/root]_(root at time2.sr)_
>       # ntptime
>       ntp_gettime() returns code 0 (OK)
>         time c963511c.98a60000  Thu, Jan 25 2007  7:54:04.596, (.596283),
>         maximum error 8817 us, estimated error 18 us
>       ntp_adjtime() returns code 0 (OK)
>         modes 0x0 (),
>         offset 2486.000 us, frequency 40.875 ppm, interval 1 s,
>         maximum error 8817 us, estimated error 18 us,
>         status 0x1 (PLL),
>         time constant 4, precision 1.000 us, tolerance 512 ppm,
> 
> With PPSKit, this would mention "PPS" in the status -- does this look like
> the PPS signal is working? 

I think so but I am more familiar with `ntpq -pn`.
Can you post that output?

>    refclock_nmea: cannot find PPS path "ttyS0" in the system
> 
> The solution:  I had a symlink /dev/gps0 -> ttyS0 -- to fix, the full path must be in the
> symlink target,e.g.:  # cd /dev ; ln -sf /dev/ttyS0 gps0

Correct.
I also had to fix that problem.

> Also, I was showing double-digit estimated errors until I
> did a "setserial /dev/gps0 low_latency" -- not sure if that

It is a good one!