Support and General Use > Hardware
iPod 5.5G w/CF card - bad battery or hardware issue?
saratoga:
--- Quote from: LurkAzusa on August 17, 2008, 04:23:21 PM ---
So, since the DEV_RS value is 00000000, then removing that first DEV_RS line really doesn't make a difference to the battery saving code? Can that line be permanently removed?
--- End quote ---
Looking at the SVN logs, that line seems to have begun with the Sansa port, then moved to other devices, and then finally was kept by Buschel when he and I put in the power saving code for all the PP targets. I don't know if its actually necessary though.
michaelc5047:
Ok, 13 hours and 2 minutes later, the iPod (w/CF card) is still playing (although the battery indicator is far into the "red zone" and almost out) in the original Apple firmware. Now, with a CF card, I'd hope for better battery life than that, but it's still quite a bit better than the 9hr 45m I got out of Rockbox.
It occurs to me that with the CF build w/the patch to allow the iPod to boot from the aData card, I'm using a non-SVN bootloader (installed from ipodpatcher v2.0 "with v2.0 bootloaders"). Could compiling a fresh bootloader from SVN make any difference in battery life in Rockbox?
EDIT: YES, a current SVN bootloader did make a difference. I got 10h40m out of it with the same settings after compiling a new bootloader and a new Rockbox install from current SVN (and modifying system-pp502x.c to get it to boot.)
LurkAzusa:
Did your ipod boot with the new bootloader, but without modifying the DEV_RS line?
My 4G gets 13 hours with the apple firmware and 9.2 hours with the modified DEV_RS line. I haven't done anything about the bootloader.
I wanted to post a bug in the tracker, but can't because of the freeze.
Llorean:
What does the freeze have to do with posting bugs?
michaelc5047:
--- Quote from: LurkAzusa on August 20, 2008, 10:27:08 PM ---Did your ipod boot with the new bootloader, but without modifying the DEV_RS line?
--- End quote ---
With the new bootloader and with modifying the DEV_RS line.
So -- to summarize:
w/old bootloader and modified DEV_RS line: 9hrs 45m
w/new bootloader and modified DEV_RS line: 10hrs 40m.
Original firmware: 13+ hours.
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