[ntp:questions] Re: serial driver with time stamping please...
David L. Mills
mills at udel.edu
Fri Apr 29 20:54:14 UTC 2005
Monica,
If I read your message literally, and knowing exact measurement and
interpretation are German specialties, I offer the literal answer. In
the NTP distribution are two driver add-ons that capture the system time
when one of a set of selected characters appear in the data stream and
insert the time value in the data stream itself. One of them works as a
line discipline, the other as a streams driver. So far as I can
contribute, they last operated in SunOS 4.1.3, but might have legs for
modern systems.
I doubt these would be useful with those GPS receivers known to me, as
the serial timecode has high jitter. The usual solution is to use the
PPS signal as the primary reference and the serial timecode only to
number the seconds.
Dave
Monica wrote:
> Hello all,
>
> I am Monica from Germany working with GPS receiver connected through a
> serial cable.I am searching for a serialdriver which gives time
> stamping along with the data.
>
> I am working in linux and have searched and read some articles how to
> implement it.
>
> Can anybody please help me if you know where can i get such a serial
> port driver.If not I will prepare myself to write such a driver.
>
> Thanking you,
> Monica
>
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