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FS#9072 - iPod color/photo battery voltage invalid

Attached to Project: Rockbox
Opened by Yoshihisa Uchida (Uchida) - Wednesday, 04 June 2008, 16:23 GMT+2
Last edited by Andree Buschmann (Buschel) - Tuesday, 16 February 2010, 23:54 GMT+2
Task Type Patches
Category Battery/Charging
Status Closed
Assigned To No-one
Player Type iPod 4G Color
Severity Low
Priority Normal
Reported Version Daily build (which?)
Due in Version Version 3.1
Due Date Undecided
Percent Complete 100%
Private No

Details

For iPod color/photo, the following values invalid.
-battery_level_dangerous
-battery_level_shutoff
-percent_to_volt_discharge
-percent_to_volt_charge

This patch file was made based on the test result
of using my iPod color.

   ipod_color_battery.patch (2.4 KiB) 
 firmware/target/arm/ipod/powermgmt-ipod-pcf.c |   30 +++++++++++++++++---------
 1 file changed, 20 insertions(+), 10 deletions(-)

This task depends upon

Closed by  Andree Buschmann (Buschel)
Tuesday, 16 February 2010, 23:54 GMT+2
Reason for closing:  Accepted
Additional comments about closing:  Suubmitted with r24709
Comment by Andree Buschmann (Buschel) - Wednesday, 04 June 2008, 21:33 GMT+2
Can you provide battery benchs with old and new calibrated settings?

And next question: Why is the lowest tableized battery voltage (3230mV) below the shutdown limit voltage (3300V)? This would lead to never reach 0% capacity but shutting down at ~2% capacity.
Comment by Yoshihisa Uchida (Uchida) - Sunday, 08 June 2008, 08:49 GMT+2
I'm sorry that the answer is late.

The result of "Battery bench" is sent (I use the firmware which the patch applied).

In my experiment, the Rockbox doesn't move in the value whose voltage of the battery of iPod is smaller than that of 3230mV.
Therefore, it thought whether I should shutdown the Rockbox at about 3300mV in the voltage of the battery.
   battery_bench.txt (153.4 KiB)
Comment by Yoshihisa Uchida (Uchida) - Monday, 09 June 2008, 04:33 GMT+2
I send the result of the battery bench where the firmware of original Rockbox (svn 17703) was used.
   battery_bench_orig.txt (82.6 KiB)
Comment by Yoshihisa Uchida (Uchida) - Sunday, 23 November 2008, 16:33 GMT+2
The battery bench was executed by using new Rockbox　(svn. 19103).
The value of voltage of iPod color/photo was corrected by using the result of the battery bench.

BatteryBencｈ
player: iPod photo 30G (ModelNum: M9829/J) 27.4GB free
music file format: ogg vorbis Quality=6 (230kbis/s)
   battery_bench_2008_11_22.txt (40.9 KiB)
   battery_bench_ipod_photo.ods (158.4 KiB)
   ipod_color_battery_2.patch (2.3 KiB) 
 firmware/target/arm/ipod/powermgmt-ipod-pcf.c |   30 +++++++++++++++++---------
 1 file changed, 20 insertions(+), 10 deletions(-)

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