|
Rockbox mail archiveSubject: Re: battery-safe bootloaderRe: battery-safe bootloader
From: Jouke Witteveen <j.witteveen_at_gmail.com>
Date: Mon, 10 Apr 2006 08:53:40 +0200 On 4/10/06, Miika Pekkarinen <miipekk_at_ihme.org> wrote: > Hi, > > On Mon, 10 Apr 2006, Jvo Studer wrote: > > The only thing this patch adds is a battery voltage check (3.3V) during > > booting and if it is too low it refuses to start. It then just switches > > off without even spinning up the harddisk. This prevents possible deep > > discharge of the lithium polymer battery. Normally the iriver hardware > > cuts off power if voltage gets below 2.6V or so but it's even better > > not to let this happen. > > Generally that sounds like a good idea, but there must be a way to > override this check. For example a failure in the battery voltage monitor > sensor could prevent booting entirely (i have heard that at least one unit > had such a defect). > That sounds like a real issue to me. Is someone willing to investigate/develop/test a fully functional version of this patch in question? I would like to help but my skills on this matter are realy limitted. IIRC the current bootloader already runs a test on certain key-combinations. It wouldn't be hard to add one to overrule the battery checks to at least be able to enter USB mode (when in real trouble this would allow you to flash your iriver). Isn't it so that the current Rockbox firmware does checks on the battery too, and turns the device off when the _reported_ battery level is too low? It would be nice if the fix for this is not just "boot into the original firmware and flash your device back to the iRiver firmware"... Regards, Jouke Received on 2006-04-10 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |