--- In "Don W. Carr" <> wrote:
>
> I have been running my 7260 now for about 8 hours since setting both the
> system clock with date, and the battery backed real-time clock with
hwclock
> to my atomic clock that synchronizes every night. It appears that the
> battery-backed real-time clock is right on, but the system clock has
lost
> about 4 seconds in 8 hours (not good). I have an application where I
need to
> know with max 1 second error when a train crosses a sensor.
>
> Below you can see I ran hwclock and date at the same time, right at
the top
> of the minute.
>
> $ hwclock ; date
> Mon Apr 17 20:10:00 2006 0.000000 seconds
> Mon Apr 17 20:09:56 UTC 2006
> $
>
> When I started the test, they both read exactly the same.
>
> Any ideas on how to keep the system clock in better sync? I would
like these
> systems to stay within 1 second even if they are disconnected from
the net
> for 24 hours.
>
Like I said, the only thing that comes to mind is to write a driver
for the RTC clock that interfaces with something like ntpd....
I don't have time for this right now, and won't have for another month
or two. I'm in a panic to get the basic UI written at the moment...
At some point I'll have to deal with it you haven't... :-)
--Yan
--Yan
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