[ntp:questions] GPS/PPS and "enable calibrate"
david-taylor at blueyonder.co.uk.invalid
Fri Sep 6 11:09:43 UTC 2013
On 05/09/2013 21:00, Horvath Bob-BHORVAT1 wrote:
> this runs perfectly for me:
> OK, maybe I'll have to try that image.
> In general though, when it comes to this line...
> fudge 127.127.20.0 flag1 1 time2 0.496
> ... how do you know what value to set for time2?
> Did you got through the instructions here?
> ... or are you using 0.496 - what is shown on the http://open.konspyre.org/blog/2012/10/18/raspberry-pi-time-server/ ?
No need to change the Kernel,Bob. There's a program which does /not/
require you to change the OS - it runs the PPS collection in user-mode
rather than kernel-mode, and the performance is only a shade worse than
the kernel-mode version:
All my Raspberry Pi experiments with different NTP versions and
different GPS receivers are here:
so I hope you find something of interest there.
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