Re: Abysmal clock chip on netwinder?
On Sun, Jan 25, 2004 at 09:44:19PM +0100, Adrian 'Dagurashibanipal' von Bidder wrote:
>
> Is anythin known about the builtin clock on netwinders? After a short time
> running, ntpd runs away and ends up detecting all available time sources as
> falsetickers or unavailable, and the frequency running away to (-)500.00,
> with a huge jitter (several 100s)
Hmm, _without_ NTP running it is a known issue. But with NTP your
clock should be solid. For example this is netwinder.org's current
output for 'ntpq -c pe':
+time.nrc.ca tic.nrc.ca 2 u 396 512 377 313.296 143.173 143.749
*ntp0.usno.navy. .USNO. 1 u 443 512 377 166.212 -0.985 23.966
(There always seems to be considerable delta between NRC and USNO,
which I don't understand...)
Check what revision of netwinder hardware you have (/proc/cpuinfo).
In the very early models the clocks were "shaken" but that was
corrected for Rev 4 and 5 - the firmware picks a nonshaken clock and
calibrates itself against the RTC.
--
Ralph Siemsen
www.netwinder.org
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