Re: [ntp:questions] Raspberry Pi error in PPM offset

2013-08-27 Thread David Woolley
On 27/08/13 02:46, james.perou...@gmail.com wrote: That's actually my code so I'm very familiar with it :) I'm hard coding a 2.5ppm offset to compensate for the difference between the measured frequency and the ntp reported frequency. The reason I'm posting is that I'm unhappy with this

Re: [ntp:questions] Start of new GPS 1024 week epoch

2013-08-27 Thread Martin Burnicki
Rob schrieb: Martin Burnicki martin.burni...@meinberg.de wrote: Rob wrote: Martin Burnicki martin.burni...@meinberg.de wrote: Extracting some refclock driver code from ntpd, modify it so that it uses the SHM interface instead of ntpd's native refclock interface, and putting all this into an

Re: [ntp:questions] Help with Oncore PPS

2013-08-27 Thread Thomas Laus
On 2013-08-25, Ron Hahn (EI2JP) ntp-questi...@dhco.org wrote: Hello, I am trying to get an Oncore GPS board to PPS a FreeBSD 8.3 installation. Originally I was using a Sure GPS board and now I want the better Oncore board to be working. From the log output below I am talking to the

Re: [ntp:questions] Start of new GPS 1024 week epoch

2013-08-27 Thread Rob
Martin Burnicki martin.burni...@meinberg.de wrote: What I meant is the usage of CreateFileMapping() and MapViewOfFile() for shared memory segments, as it is done in ntpd's refclock_shm.c. We are using this in the Windows driver package for our PCI cards, but this usage is not related to

Re: [ntp:questions] Help with Oncore PPS - Update

2013-08-27 Thread Ron Hahn (EI2JP)
Colleagues, an update: I now have the OnCore board actually speaking to the computer. All signals including the PPS signal are translated level using a MAX232 chip, with the PPS signal on the DCD line. I also have the kernel recompiled as described on http://blog.doylenet.net/?p=145. So the

Re: [ntp:questions] Help with Oncore PPS - Update

2013-08-27 Thread Charles Swiger
Hi, Ron-- On Aug 27, 2013, at 3:02 PM, Ron Hahn (EI2JP) ntp-questi...@dhco.org wrote: So the everything is appearing to be wired correctly and ntpd is communicating with the OnCore board. So far, so good. Now the output from ntpq -c pe is not looking so good: [root@jupiter /etc]#