--- In "jirimacku" <> wrote:
>
> The time obtained from RTC by rtc7800 makes random jumps. To find out
> more details I added following to crontab:
>
> 0,10,20,30,40,50 * * * * /usr/local/bin/rtc7800; date >>
/var/log/rtc.log
>
> Interesting parts of rtc.log:
>
> Mon Mar 10 15:30:12 CET 2008
> Mon Mar 10 15:40:05 CET 2008
> Mon Mar 10 15:50:04 CET 2008
> Thu Mar 13 20:00:06 CET 2008 (+ 76 h)
> ***********************************
> Thu Mar 13 20:40:06 CET 2008
> Thu Mar 13 20:50:04 CET 2008
> Thu Mar 13 09:00:05 CET 2008 (- 12 h)
> ***********************************
> Thu Mar 13 19:20:10 CET 2008
> Thu Mar 13 19:30:11 CET 2008
> Thu Mar 13 19:40:07 CET 2008
> Thu Mar 13 19:50:12 CET 2008
> Tue Mar 11 12:00:12 CET 2008 (- 50 h)
>
> After correction (ntpdate, rtc7800 -s)
> Tue Mar 11 11:20:05 CET 2008
> Tue Mar 11 11:30:05 CET 2008
> Tue Mar 11 11:40:05 CET 2008
> Tue Mar 11 11:50:04 CET 2008
> Fri Mar 14 20:00:05 CET 2008 (+ 80 h)
>
> There was no reboot during the test.
>
> I'm booting the factory preloaded Debian from on-boad flash.
> I use the current version of rtc7800 from ts's ftp site.
>
> Because I'm new to ts systems may be I'm doing something wrong.
>
> Thank you for any hints.
>
> Jiri
>
I can verify this behavior. I am running on onboard flash with distro
debian-sarge-udev-512MB-jan182008.tar.gz
Updated tsuart1.ko module and using latest rtc7800.
I can't predict when it happens, it apears to be random. But reseting
system clock from hwclock with rtc7800 corrects time again (given that
the hwclock is correct). So it probably is not a problem with the rtc.
Michael Nordseth
TLab West AB
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