Re: [time-nuts] NTP and Oncore UT+

2014-04-20 Thread Hal Murray
b...@evoria.net said: The reference pages indicate that a PPS interface is required. Most times when somebody says that PPS is required, they leave off the for decent timekeeping. I don't have a UT+, but I'd be very surprised if NTP didn't work without PPS. You can add noselect to the

Re: [time-nuts] NTP and Oncore UT+

2014-04-20 Thread Paul
On Sun, Apr 20, 2014 at 2:24 PM, Hal Murray hmur...@megapathdsl.net wrote: I don't have a UT+, but I'd be very surprised if NTP didn't work without PPS. Currently (based on the comments) the driver won't start and in a previous incarnation it actually stopped NTPD.

Re: [time-nuts] NTP and Oncore UT+

2014-04-20 Thread Chris Albertson
I tried to run a UT+ based ref clock with no PPS. I wanted to use the PPS but it was not working because I was using a long cable with no drivers. I gave up and moved the NTP server physically close to the GPS receiver and it worked. With no reliable PPS the reference clock got rejected. What

[time-nuts] NTP and Oncore UT+

2014-04-19 Thread Bob Stewart
I've done as much as I can do with my little Adafruit, so I guess it's time to move to a timing receiver.  I already have a UT+, so I might as well make use of it.  My thought was to use the NTP refclock driver and probably take the sawtooth from SHMEM with a simple C program to pass to my

Re: [time-nuts] NTP and Oncore UT+

2014-04-19 Thread Bob Camp
Hi If you have a serial “thing” hooked to the GPS, pulling the sawtooth data out of it is not very hard. They all have some sort of repeating message that contains time / date / sawtooth information. Bob On Apr 19, 2014, at 4:58 PM, Bob Stewart b...@evoria.net wrote: I've done as much as I

Re: [time-nuts] NTP and Oncore UT+

2014-04-19 Thread Bob Stewart
Sent: Saturday, April 19, 2014 5:17 PM Subject: Re: [time-nuts] NTP and Oncore UT+ Hi If you have a serial “thing” hooked to the GPS, pulling the sawtooth data out of it is not very hard. They all have some sort of repeating message that contains time / date / sawtooth information. Bob

Re: [time-nuts] NTP and Oncore UT+

2014-04-19 Thread Bob Stewart
have the right document. Bob From: Bob Camp li...@rtty.us To: Bob Stewart b...@evoria.net; Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Saturday, April 19, 2014 7:03 PM Subject: Re: [time-nuts] NTP and Oncore UT+ Hi

Re: [time-nuts] NTP and Oncore UT+

2014-04-19 Thread Bob Camp
of precise time and frequency measurement time-nuts@febo.com Sent: Saturday, April 19, 2014 5:17 PM Subject: Re: [time-nuts] NTP and Oncore UT+ Hi If you have a serial “thing” hooked to the GPS, pulling the sawtooth data out of it is not very hard. They all have some sort of repeating

Re: [time-nuts] NTP and Oncore UT+

2014-04-19 Thread Chris Albertson
If you are running NTP, always you are going to need the PPS. This applies for any GPS receiver. The data you get over the serial port is never intended for timingIf you do not use PPS your NTP server will see the GPS as being such a poor clock that it will likely ignore it in favor of some

Re: [time-nuts] NTP and Oncore UT+

2014-04-19 Thread Bob Camp
b...@evoria.net; Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Saturday, April 19, 2014 7:03 PM Subject: Re: [time-nuts] NTP and Oncore UT+ Hi There are a series of init strings you send to any of these modules to get them into the “right” mode. There’s

Re: [time-nuts] NTP and Oncore UT+

2014-04-19 Thread Paul
On Sat, Apr 19, 2014 at 9:18 PM, Bob Stewart b...@evoria.net wrote: Somehow I missed that page in all the times I looked through the Oncore manuals I have. I see various commands to tell it to change this or change that, but no clear path on how to talk to a UT+ that is mute but not bricked.

Re: [time-nuts] NTP and Oncore UT+

2014-04-19 Thread Bob Stewart
To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Saturday, April 19, 2014 9:36 PM Subject: Re: [time-nuts] NTP and Oncore UT+ On Sat, Apr 19, 2014 at 9:18 PM, Bob Stewart b...@evoria.net wrote: Somehow I missed that page in all the times I looked through the Oncore