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Subject: Re: battery-safe bootloader

Re: battery-safe bootloader

From: Jvo Studer <>
Date: Mon, 10 Apr 2006 00:47:11 +0200

Hi Jouke,

I did this patch but it wasn't yet tested.
Theoretically I can test it (by creating a valid hex file) but was
afraid of flashing my ihp-140 without having any possible backup if it
fails for some reson. somebody with a GDB debug connection could
reflash in case of flash firmware upgrade failure.

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.

Am 08.04.2006 um 21:19 schrieb Jouke Witteveen:

> Hi,
> Would someone (with firmware flash access) please test patch 3039
> ( Someone wrote it some
> months ago and I want to use it. It would be nice if someone commented
> wether it breaks functionality or not.
> If it is good (which I expect it to be), I suggest a merge with CVS.
> regards,
> Jouke
Received on 2006-04-10

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