[gta02] GPS performance issues on GTA02v5

Daniel Willmann daniel at openmoko.org
Fri Apr 25 03:31:48 CEST 2008


On Fri, 25 Apr 2008 00:00:23 +0800
"Neng-Yu Tu (Tony Tu)" <tony at openmoko.com> wrote:

> u-blox has strange behavior is: If you start fix at indoor, then go
> out door, then the fix will take much longer than direct start fix at
> outdoor.

I saw that behaviour, too, and I'm not quite sure what the reason is.
Our u-blox seems to be configured in auto mode which means it will
revert to high sensitivity mode if it can't find any  signal at the
beginning. That could be related.

> BTW, did a5 and a4 using the same test program? (i mean binary or 
> compile from same source).

Yeah both were running
http://people.openmoko.org/olv/tmp/openmoko-agpsui

Regards,
Daniel Willmann
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