Reason for GPS problems found!

Neng-Yu Tu (Tony Tu) tony at openmoko.com
Wed Jul 16 10:14:08 CEST 2008


Hi Jay-

Jay Vaughan ??:
>> To say the true I never saw a firm to admit the problem and to start  
>> to
>> work for a fix in 11h!
> 
> 
> Please do not ignore the fact that GPS has been complained about for  
> months.
> 

I think this main reason is our test environment is badly synced 
(factory/lab/developers/test software).

For my GTA02 it's GPS always fixed around 1 minutes, and my SD card was 
format into vfat + ext2 format for other testing, so could not used as 
normal SD card stay at boot, so most of time won't have SD card in while 
doing GPS testing.

We did also have big fight internal over last week for about test 
specification and why GPS when wrong in field. And we still working on 
possible hardware improvement and software solutions.

Please check Andy's branch for SD clk, in kernel list there are more 
explanation at

http://lists.openmoko.org/pipermail/openmoko-kernel/2008-July/003837.html

Tony Tu






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