Operation without battery (GTA02)

Dale Schumacher dale.schumacher at gmail.com
Thu Jul 24 01:08:30 CEST 2008


On Wed, Jul 23, 2008 at 5:51 PM, Andy Green <andy at openmoko.com> wrote:

> That's right, to start Freerunner needs a battery in and the battery
> needs some decent charge left in it, for the reason briefly during
> startup it needs to eat more current that it is allowed via USB.  It
> causes a "brownout" at that time since the USB current limit does its
> job well, it chokes and restarts repeatedly.
>

Does the latest u-boot <
http://buildhost.openmoko.org/daily/freerunner/200807/20080723/u-boot-gta02v5-1.3.1+gitr6+ba029a1426bfca169572bf80d50a8b190a6b0e19-r0.bin>
contain the start-up current limiting code that keeps <100mA during boot?
If so, does that mean we should be able to boot from USB power only?
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