Rockbox Ports are now being developed for various digital audio players!
Battery Charging Specification 1.0: Released in March 2007. Adds support for dedicated chargers (power supplies with USB connectors), host chargers (USB hosts that can act as chargers) and the No Dead Battery provision which allows devices to temporarily draw 100 mA current after they have been attached. If a USB device is connected to dedicated charger or host charger, maximum current drawn by the device may be as high as 1.5 A. (Note that this document is not distributed with USB 2.0 specification package.)
A 12 Ohm resistor was the smallest that I could lay my hands on. Â When I get to a suitable shop I'll buy 1 Ohm and a 0.1 Ohm resistors for current sensing - or maybe a decent multimeter. Â Also, I thought that a largish resistor might reduce the current to the compliant range, but something is (falsely) deciding that the battery is dead.
Compliant devices should not draw more than 100 mA before negotiation. Â USB 2.0 allows negotiation up to 500 mA. Â
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