FS#4975 - No Charge with USB Power Adapter pn G5

Attached to Project: Rockbox
Opened by Anonymous Submitter - Friday, 31 March 2006, 13:07 GMT
Task Type Bugs
Category Battery/Charging
Status Closed
Assigned To No-one
Operating System iPod 5G
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No


If u Use Ipod USB Power Charger (Official Charger with APPLE)
the IPOD spins up in Diskmode and after Few Secon a Reset comes,
then comes up a Rockbox Charge Symbol and than it resets again to discmode,
then it spin up in discmode ... and so on ... its a very bad Loop (and my harm the RockPod. :( )

it must be possible to charge the RockPod while Playing (the orginal Firmware do that)
This task depends upon

Closed by  Dave Chapman (linuxstb)
Saturday, 08 April 2006, 20:21 GMT
Reason for closing:  Duplicate
Additional comments about closing:  Duplicate of
Comment by Ralf Herz (herz42) - Saturday, 01 April 2006, 14:24 GMT
Two problems here:
1. We don't know how to differentiate between an USB data connection to a computer and just 'power over USB'. So rockbox always assumes a connection to a computer and switches to built-in USB disk mode.
2. When preventing to switch to usb disk mode (by pressing menu button while inserting the usb cable), the usb charging circuit is restricted to 100mA. So it will take more than a day to fully charge while running rockbox (at least on my ipv-60gb). But it 'works'.

btw: My ipod doesn't automatically reset after exiting USB disk mode, just showing the big checkmark. Anybody knows how this behaviour can be changed?
Comment by Thomas B (Hyperbit) - Saturday, 01 April 2006, 19:46 GMT

the original Firmware can diff. between usb data connection and Power over usb ... (but its a big problem that rockbox boot to apple os and charge some seconds and jumps back to rockbox ... and than jumps back to apple os.. and so on)

is it possible to pushe the 100mA up to 500 or more?

Im not sure but i belive the apple os
different usb data connection from Power over usb very easy,
if DATA + and DATA - = Ground (it will think its a USB Charger

greetz from Berlin :)