GTA02 GPS rework for SD card interference issue

[Peter Kraker]

It's more likely you were too slow for Kalman filtering to do its magic.

Peter Kraker

Yorick Moko pravi:
> i tried to walk with tangogps and sometimes i jumed 1-2 km in a random
> direction and kept drifting
> there were no roads in openstreetmaps for my location, could this influence it?
>
> On Wed, Jul 23, 2008 at 7:51 PM, atweb <atweb at gmx.de> wrote:
>   
>> Hi,
>>
>> The last 50 Minutes I drived 8 km around with my bike for catch coordinates
>> for OpenStreetmap.
>> I was carefully with Tangogps, so only the one Map came from SD-Card but the
>> Track was written to the Flash.
>> The Track looks very good.
>>
>> cu
>> Markus
>>
>>
>>
>> steve schrieb:
>>
>> I have mail from Wolfy indicating that Andy's magic SW fix works.
>>
>> So, contact AG on this matter.
>>
>> -----Original Message-----
>> From: Michael Shiloh [mailto:michael at openmoko.org]
>> Sent: Tuesday, July 22, 2008 3:58 PM
>> To: steve
>> Cc: 'Joerg Reisenweber'; community at lists.openmoko.org; 'C R McClenaghan';
>> tony at openmoko.com; 'Andy Green'
>> Subject: Re: GTA02 GPS rework for SD card interference issue
>>
>> I have not had time to test any. But I could.
>>
>> M
>>
>> steve wrote:
>>
>>
>> Michael do you have any phones that fail GPS test?
>>
>> -----Original Message-----
>> From: Michael Shiloh [mailto:michael at openmoko.org]
>> Sent: Monday, July 21, 2008 10:10 PM
>> To: steve
>> Cc: 'Joerg Reisenweber'; community at lists.openmoko.org; 'C R
>> McClenaghan'; tony at openmoko.com; Andy Green
>> Subject: Re: GTA02 GPS rework for SD card interference issue
>>
>> ave ceasar!
>>
>> steve wrote:
>>
>>
>> Then I am Rome.
>>
>>   The SOP needs to be reviewed. Basically, I will need to hear from
>> jOERG, Werner,
>>   Micheal, Andy.
>>
>>   I would like to have micheal test the SOP.
>>
>>   Then  I can figure out how to offer the repair.
>>
>>
>>   1. Give people a free repair kit?
>>   2. work with distributors to do repair.
>>   3. Host repair PARTIES! Woo hoo. Bring your own soldering iron.
>> BYOSI
>>
>>
>>
>> -----Original Message-----
>> From: Michael Shiloh [mailto:michael at openmoko.org]
>> Sent: Monday, July 21, 2008 11:18 AM
>> To: Joerg Reisenweber
>> Cc: community at lists.openmoko.org; steve; C R McClenaghan;
>> tony at openmoko.com
>> Subject: Re: GTA02 GPS rework for SD card interference issue
>>
>> ...and Michael goes to Steve, so all roads lead to Steve.
>>
>> Expect a reply from Steve very shortly (if he hasn't already done so).
>>
>> Michael
>>
>> Joerg Reisenweber wrote:
>>
>>
>> This should go to Steve and Michael, I guess
>>
>>
>> Am Fr  18. Juli 2008 schrieb C R McClenaghan:
>>
>>
>> Tony,
>>
>> Will OpenMoko offer this repair to Freerunner owners? How and under
>> what terms?
>>
>> Chris
>>
>> On Jul 18, 2008, at 2:28 AM, Neng-Yu Tu (Tony Tu) wrote:
>>
>>
>>
>> Dear Community:
>>
>> For GTA02 SD card interference GPS issue, our hardware team
>> provide a hardware fix/workaround for this coexistence bug. Sorry
>> post it late, because we have to make sure this fix works and
>> don't have side effects.
>>
>> Here is the fix:
>>
>> http://www.openmoko.org/wiki/Image:Gta02_gps_10pf_rework_sop.pdf
>>
>> This fix could give almost same performance with SD card out of case.
>>
>> But this work still not suggest do by yourself, also, this fix
>> need proper size capacitor (10 pf with 0402 package), and some
>> solder technique.
>>
>> We saw people ask about service issues of Openmoko devices, and we
>> are working on it. Our sales discussing with our distributor about
>> proper services model, but do not have consensus yet, I will keep
>> update
>>
>>
>> it.
>>
>>
>> Thanks,
>>
>> Tony Tu
>>
>> Openmoko, Inc.
>>
>> Support
>>
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>>     
>
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