RE: [iPAQ] Inaccurate time on iPAQ

With bootldr 2.17.7 or newer and kernel 2.4.16-rmk1 hh12 or newer, the
RTC is preserved as long as power is supplied to it.

bootldr 2.18.01 is the currently recommended bootldr. Among other
things, it supports direct restore of wince_image.gz.

Jamey

> -----Original Message-----
> From: Michael Scott Shappe [mailto:mikey@hundred-acre-wood.com]
> Sent: Monday, February 04, 2002 10:38 AM
> To: Hicks, Jamey
> Cc: tercero12@yahoo.com; ipaq@handhelds.org
> Subject: Re: [iPAQ] Inaccurate time on iPAQ
>
>
> For what it's worth, I have also seen some clock skew (about
> 8 hours worth),
> but I put it down to having reboot the unit, rather than to
> it having been
> asleep.
>
> It would be nice if there were some way to preserve the RTC under all
> conditions except total battery drain.
>
> Mikey
>
> Jamey:
> > The RTC runs at the same speed while asleep as while awake. Are you
> > experiencing significant RTC drift? Are you running ntpd
> to maintain
> > time while it is awake? Can you give me a more
> quantitative value for
> > "skews badly"?
>
> Timothy:
> > > I've noticed that, the iPAQ, when left for more than a few
> > > hours (asleep)
> > > with no external power, the rtc skews badly. Is there some
> > > way to make it
> > > retain time better while asleep? (I'm on the latest
> > > 2.4.16-rmk1 kernel)
>
>
Received on Mon Feb 4 08:30:36 2002