[PATCH 0/4] More SD / GPS noise reduction

Andy Green andy at openmoko.com
Wed Jul 30 18:32:48 CEST 2008


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Somebody in the thread at some point said:
| Andy Green wrote:
|>  - use the minimum negotiated voltage for the SD Card,
|
| Nice !
|
|>  - when the GPS unit is powered, we dynamically reduce the
|>    clock rate to the SD Card.
|
| Hmm, so are we still seeing GPS performance problems that this change
| reduces ? I thought we had moved the bad frequency component(s) to a
| safe enough place already ...

Guy says it makes jitter for his tracking, other folks say it's not
impacting them.  Dunno, but these were "progress" anyway.

Couple of guys say that WLAN on also jitters GPS tracking.

- -Andy
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