GTA01 battery charge circuit: ID pin?

Joerg Reisenweber joerg at openmoko.org
Wed May 28 04:22:25 CEST 2008


Am Sa  24. Mai 2008 schrieb Major A:
> 
> Hi,
> 
> I have a GTA01 and want to use it even when I don't carry a computer
> with me. I read that the battery charge circuit of the GTA02 will
> switch to high current if a 48k resistor is present between the
> mini-USB ID pin and ground. Does this also apply to the GTA01, i.e.,
> is it worth hacking up a cable for that model?

47k (no need for 48k-1% ;) detection is defined and built in to the hardware 
of GTA01 as well - just checked the "old" schematics and datasheets.
Dunno whether the sw is handling it correctly...
HTH
jOERG
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