Sooo... I may have blown up my battery.
gilbertf at gmail.com
Sat Dec 12 02:56:50 CET 2009
Mine does not boot up with USB only. It's a buzz-fixed A6, and
couldn't start without battery power (AFAIK). Moreover, the version
of UBoot I have in NOR dates back to may, 2008, so it is probably very
stale. I have so little juice NAND U-Boot won't.
Let's see what I have on hand:
1) a 2500 mAh 4.8v batt
2) proto-board friendly wires
3) a need for a booting phone
If the battery posts of the FR accept 5v from a USB wire without
damage, could I jury-rig the AA batt's in lieu of the FR battery? If
I understood well, the FR needs a lot of mA to boot, but could get by
on USB after boot.
Has anybody tried this? Is there some reason I shouldn't? Is there
some place where I could see the specs for the power input circuits?
Le 09-12-11 à 11:37, Werner Almesberger a écrit :
> Fran?ois-L?onard Gilbert wrote:
>> 4) try to plug the led + resistor between the FR terminals: very
>> light, but OK
> Great !
>> 5) plug the FR in my computer, put the battery in, power up the NAND
>> boot menu
> Hmm, it should power up on its own when you plug in USB. Didn't
> it do this ? Maybe try the opposite order: insert battery, connect
> USB, then wait and see what happens.
> (I'm assuming you're using u-boot. Things are a bit more complicated
> with Qi, because as far as I know, the low-power path into and inside
> the kernel is still incomplete.)
> - Werner
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> support at lists.openmoko.org
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