Re: cannot read DS2760 Battery chip on h5555: cannot enter learn mode

Milan Plzik a écrit :
> On St, 2008-02-13 at 08:37 +0100, Thierry Bugier wrote:
>
>> Hello
>>
>> I just bought a ipaq h5555 and flashed ROM to run familiar. I cannot get
>> battery status, and I cannot enter learnong mode.
>>
>> cat /proc/asic/battery
>> Unable to read DS2760 battery monitor
>>
>> cat /proc/asic/ds2760
>> Unable to read DS2760 battery monitor
>>
>> cat /proc/asic/ds2760_raw
>> ff ff ff ff ff ff ff ff
>> ff ff ff ff ff ff ff ff
>> ff ff ff ff ff ff ff ff
>> ff ff ff ff ff ff ff ff
>> ff ff ff ff ff ff ff ff
>> ff ff ff ff ff ff ff ff
>> ff ff ff ff ff ff ff ff
>> ff ff ff ff ff ff ff ff
>>
>>
>> cat /proc/hal/battery
>> AC status : 1 (online) <= ok, changes when I unplug pda
>> Battery #0
>> Chemistry :0xff (unknown) <= Li-polymer written on the battery pack
>> status :0x08 (charging) <= ok; becomes 0x01 when AC unplugged
>> voltage :0x030f (3823 mV) <= doesn't decrease when running a
>> few hours unplugged
>> percentage :0x00 (0%) <= I've never seen any other value
>> Life (min) : 0
>>
>> My battery is a replacement battery pack for 54xx/55xx (1400mAh). I'm
>> not sure it is an authentic HP battery. I wonder if DS2760 is present in
>> the battery.
>>
>
> Looks like the battery really doesn't contain ds2760 chip
>
I received a new battery pack. I tried the same commands as above: cat
/proc/... I got the same results, except to
cat /proc/asic/ds2760_raw
Unable to read battery (-512)

I also opened my old battery. I found some electronics, and the DS2760 chip.

I'll try to read the source code to understand the meaning of -512.

If I'm right, the DS2760 is connected to a serial interface in the
h5555. I'm thinking about a damaged interface...
>
>> Because voltage never decreases, I cannot enter learn mode. As long I
>> plug AC power, the battery LED flash, and load the battery. I thing it
>> may be damaged when charging if it is already full.
>>
>> I'm wating for a new 3000 mAh battery pack. I'll test it with above
>> commands.
>>
>>
>> Regards
>>
>>
>
> Milan
>
>
Received on Fri Feb 15 2008 - 06:30:20 EST