GTA02 GPS rework for SD card interference issue

[Michael Kluge]

This additional capacitor has been added between clock and GND for the 
SD card. So it is most probably just there to filter frequencies higher 
than the clock rate itself.

Michael

Yaroslav Halchenko schrieb:
> sorry to be pain in the b%%t, but was testing done to check if there is
> any affect on SD card performance? (I am lazy to look now even what pins
> at SD are those ;)) just wanted to check
> 
> On Fri, 18 Jul 2008, 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