From: [IDC]Dragon <idc-dragon_at_gmx.de>
Date: Fri, 26 Sep 2003 21:22:17 +0200 (MEST)

> > AFAIK charging is done in hardware on the FM recorder because charging a
> > li-ion battery is much more critical than ni-mh batteries.
> > Have you tried the F1-boot option (hold F1 key during startup)?
>
> This is correct. On the FM Recorder, Rockbox has nothing to do with the
> charging whatsoever. I was a very early adopter of flashing on my FM unit,
> and have had no problems with charging whatsoever. If it doesn't charge
> under the Archos firmware either, then your unit is faulty.

Recently I got the impression that some FM revisions might have a software
control for the charging. Some "flash customers" had problems with my
bootloader, neither the Archos software (with F1) nor Rockbox was changing the cell.
It looks like the Archos boot code did some initialization which is now
absent. They had to revert to original flash content, unless this will be solved.

I just carefully checked the PCB revision 2.1 of an FM (hardware mask
0x0304). The "PROG" pin of the LTC1734 charger chip is connected to some circuitry,
but no programmable influence for this. Maybe other revisions are different?

Jörg

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Received on 2003-09-26