Wifi / let's have RF stuff powered with high current source all the time because...

Joerg Reisenweber joerg at openmoko.org
Mon Aug 25 22:22:43 CEST 2008

Am Mo  25. August 2008 schrieb Andy Green:
> Point taken about the GTA03+ module though -- it should take care of
> power switching inside the module boundary in a reliable way or the
> module is broken, so we presumably should be able to just use the module
> boundary power arrangements.  But still I guess we learn about it during
> GTA03 EVB.  There was that guy who saw his GTA02 battery consumption was
> stuck at 500mA on VB when he made no call, I really did not like to hear
> about it since only the GSM side TX stuff gets that hungry and it seemed
> there to be doing its own thing.

100% ACK about scariness of story.
Though this wasn't exactly for GSM-powerdown state IIRC. So it seems our 
biggest problem these days (for GTA02 GSM at least) is serial communication 
between CPU and calypso, including not resuming at all, unsolicited resume 
etc pp.
A hung call wouldn't seem impossible to me.


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