Re: [ntp:questions] How to debug PPS?

2010-05-07 Thread Terje Mathisen
Hal Murray wrote: GPGGA has one added benefit: If you turn on clockstats you get a log of the current position every second, this is perfect input for a statistical averaging of the current antenna position. :-) It doesn't have the date. GPRMC is the only one I know of with both time and

Re: [ntp:questions] nmea and initial large offset

2010-05-07 Thread Kalle Pokki
On Thu, May 6, 2010 at 17:36, unruh un...@wormhole.physics.ubc.ca wrote: The funny thing is that the exact date is provided by e.g. the SHM refclock driver, but the year information is intentionally discarded when the timestamp propagates up towards the NTP core code. Then the code does all

Re: [ntp:questions] nmea and initial large offset

2010-05-07 Thread Rob
Kalle Pokki kalle.po...@iki.fi wrote: Yes, but reference clock drivers don't use the ntp timestamp. Take a look at e.g. the SHM driver. There Is this piece of code something that our friend does not want to change because he believes it is doing the right thing? Or is it merely badly written

Re: [ntp:questions] nmea and initial large offset

2010-05-07 Thread Andy Helten
Rob wrote: Kalle Pokki kalle.po...@iki.fi wrote: Yes, but reference clock drivers don't use the ntp timestamp. Take a look at e.g. the SHM driver. There Is this piece of code something that our friend does not want to change because he believes it is doing the right thing? Or is it

Re: [ntp:questions] nmea and initial large offset

2010-05-07 Thread Rob
Andy Helten andy.hel...@dot21rts.com wrote: Rob wrote: Kalle Pokki kalle.po...@iki.fi wrote: Yes, but reference clock drivers don't use the ntp timestamp. Take a look at e.g. the SHM driver. There Is this piece of code something that our friend does not want to change because he

Re: [ntp:questions] nmea and initial large offset

2010-05-07 Thread David Woolley
Rob wrote: With such an attitude against change, it often surprises me that there hasn't been a major fork of ntpd yet. It's an infrastructure component with no user interface for the normal user. Forked products tend to have significant user interfaces.

Re: [ntp:questions] nmea and initial large offset

2010-05-07 Thread Richard B. Gilbert
Rob wrote: Andy Helten andy.hel...@dot21rts.com wrote: Rob wrote: Kalle Pokki kalle.po...@iki.fi wrote: Yes, but reference clock drivers don't use the ntp timestamp. Take a look at e.g. the SHM driver. There Is this piece of code something that our friend does not want to change