[time-nuts] Modern HW replacement for ATOM based NTP server?

Edesio Costa e Silva time-nuts at tardis.net.br
Tue Apr 7 16:36:41 EDT 2015


Hi!

Take a look at
<https://www.febo.com/pipermail/time-nuts/2014-December/089217.html> and
<https://www.febo.com/pipermail/time-nuts/2014-December/089681.html>. There
you can see sub-microsecond accuracy.

Ed├ęsio

On Tue, Apr 07, 2015 at 09:52:57PM +0200, Attila Kinali wrote:
> On Tue, 7 Apr 2015 17:39:01 +0100
> "David J Taylor" <david-taylor at blueyonder.co.uk> wrote:
> 
> > "Problematic" if you are after microsecond-level accuracy, perhaps, but so 
> > would the BeagleBone be.  If your needs are more in the 100 microsecond 
> > range, either would be fine with a reasonably wide PPS pulse.
> 
> Not really. If you know how to write C, you can use the
> timer on the BBB and get to sub-us accuracy levels (IIRC ~10ns).
> The biggest problem would be to get the data into ntp
> in the right way, as I am not sure whether ntp supports
> that kind of input. But I know at least someone working
> on this.
> 
> The rpi has, AFAIK, no timer units
> 
> 			Attila Kinali
> 
> -- 
> < _av500_> phd is easy
> < _av500_> getting dsl is hard
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