[ntp:questions] TXCO derived PPS and Atom PPS Clock Discipline driver
Viktar Palstsiuk
viktar.palstsiuk at promwad.com
Mon Oct 18 14:52:34 UTC 2010
I added local clock driver to ntp.conf:
server 127.127.1.0 minpoll 4 maxpoll 4 prefer true
server 127.127.22.0 minpoll 4 maxpoll 4
fudge 127.127.22.0 flag3 1
The result repeats:
# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
LOCAL(0) .LOCL. 5 l 11 16 377 0.000 0.000 0.008
PPS(0) .PPS. 0 l - 16 0 0.000 0.000 0.000
On Mon, Oct 18, 2010 at 5:19 PM, Göran Sandin <gsan.news at mailnull.com> wrote:
> On 2010-10-18 15:05, Viktar Palstsiuk wrote:
>>
>> Hello
>>
>> I use TXCO derived PPS. I set date and time manually.
>> Is it correct to use Atom PPS Clock Discipline driver with ntp.conf like
>> this:
>>
>> server 127.127.22.0 minpoll 4 maxpoll 4 prefer
>> fudge 127.127.22.0 flag3 1
>
>> But still can not get good PPS(0) status in ntpq -p
>>
>>
>> remote refid st t when poll reach delay offset
>> jitter
>>
>> ==============================================================================
>> PPS(0) .PPS. 0 l - 16 0 0.000 0.000
>> 0.000
>
> Hi Viktar,
>
> as far as I understand, you need another source to provide the time as well.
> "prefer" keyword should be on the other source.
>
> Check this page
> http://www.eecis.udel.edu/~mills/ntp/html/drivers/driver22.html
>
> /Göran
>
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--
Viktar Palstsiuk
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