[gta02] Re: DM2 GPS issue - CN

Miles Hsieh miles_hsieh at openmoko.com
Tue Apr 15 12:16:10 CEST 2008

Willie Chen wrote:
> Andy Green wrote:
>> Somebody in the thread at some point said:
>> | Today I improved our DM2 GPS performance. I go to the outside and 
>> test it.
>> | After DM2 GPS test gets the position, it needs 40-50 seconds.
>> |
>> | Miles, I give you gps_perf.patch to improve the performance.
>> Nice work Willie it proves that suspicious buffering code is the
>> problem.  We will beat on that code some more as soon as I can build it.
>> -Andy
> Hi all,
> Our DM2 CNR test is also caused by suspicious buffering problem.
> Today, I use R&S SMU200A to test CNR. It seems very good.
> We can get PRN and C/N during 10 seconds.
> Regards,
> Willie
Hi, Willie & Tony,

I know that you can improve the performance.
It seems very good.
If willie make sure OK, we will release later.
Do we need to release in 0.0.24 version to factory ???
If it needs, I will integrate GPS CN test to dm2.
Please tell me.

Best Regards,

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