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Battery runtime on iPod 5,5 gen

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rapster:

--- Quote ---Reduced battery consumption on PP5002 targets (iPod 1st/2nd gen and 3rd gen). Now rockbox battery runtime is better than OF, verified on 2nd gen :-)

--- End quote ---
Great! This is good news! Is there a chance that iPod 5,5 gen will soon have reduced battery consumption too?

Greetings

rapster

Llorean:
The PP502x targets have different hurdles. It gives us some things to look for, but by no means guarantees that it will discovered soon.

Buschel:
I also cannot wait the next good news as I saw the progress on 2nd and 3rd generation iPODs the last days!  :)

sadffffff:
what was the reason for the improvement? I'd be curious to hear some more about this.

GodEater:

--- Quote from: sadffffff on August 07, 2007, 12:52:58 AM ---what was the reason for the improvement? I'd be curious to hear some more about this.

--- End quote ---

As I understand it, this is how it went down :

1) amiconn took delivery of a 2nd Gen iPod he'd bought on ebay
2) On dumping the flash from it (or the original firmware, I'm unclear on which) and then disassembling the same, he found some hardware routines that were performed during device initialisation that we didn't do before. These routines accessed bits of the Portal Player that are previously unknown to both us, and iPodLinux.
3) Copying these routines into our bootloader, and also figuring out finally how to turn the hard drive off when it's not being used resulted in :

Rockbox using less battery than the original firmware on the all PP5002 targets (which is the 1st, 2nd and 3rd Gen iPods).

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