Wall clock accuracy

Eugene Surovegin ebs at ebshome.net
Wed Aug 10 02:59:57 EST 2005


On Tue, Aug 09, 2005 at 11:57:04AM -0500, Rune Torgersen wrote:
> > -----Original Message-----
> > From: Eugene Surovegin [mailto:ebs at ebshome.net] 
> > Sent: Tuesday, August 09, 2005 11:41
> > Hmm, if I'm correct this clock drift (130ppm) should be 
> > handled easily 
> > by NTPD without stepping clock but with slewing. This is why NTPD 
> > exists in the first place, so I don't see any reason to change 
> > the kernel.
> 
> NTPD probably handles this correct, but I would like the time to be
> correct anyways. In our case we might not always have access to a ntpd
> server, and our input clock is very accurate to begin with.

Well, NTPD doesn't mean you need to have network connectivity, IIRC if 
you have exact frequency source, you can add it to NTPD and it'll use 
it to correct drift.

-- 
Eugene




More information about the Linuxppc-embedded mailing list