date and GPS related questions
ed at kapitein.org
Fri Mar 13 08:49:03 CET 2009
On Thu, 2009-03-12 at 22:19 +0100, Fernando Martins wrote:
> 1) I got the date reset to 1970 a few times. I was not paying attention
> but I guess this happens when battery is removed, i.e., there's no
> battery specific for the clock?
> 2) Several posts mentioned that GPS could only get the fix if date was
> correct, the requirements being within 1 sec precision. However, with
> the date/time completely messed up, GPS is getting the fix anyway (and
> it's fairly fast, 1 min or so). So, what's up? I'm using SHR unstable
> from January. Is the GPS driver (?) being to ignore dates before FR
> production, or something else?
There is no need for the clock to be correct to get a fix, however if
you want to use AGPS, the time has to be accurate in order to know where
the satelites are a what time.
I hope the other questions are answwered by someone else... ;-)
> 3) While using tangoGPS and I enter a building, when I come out, a fix
> is not gotten until I reboot FR. Is this a known issue? any quicker
> workaround than rebooting?
> 4) How can I avoid going into suspend mode? (alternatively, are Power
> Mng settings working in recent SHR testing?)
> Regards and TIA,
> Openmoko community mailing list
> community at lists.openmoko.org
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