Hi, I have a microcontroller based USB device and want to connect it to the Freerunner (in host mode). Now I need some clarifications on the resistor trick:
The two 15k Ohm resistors are indispensable to comply with USB-spec? What will happen if I connect the device (with the resistors) to the USB port of my computer? (The external power supply is turned of) How do I have to design the USB endpoints on the device, so the Freerunner does charge with 1A? Or do I need the 47k Ohm resistor if the FR is in host mode? At http://wiki.openmoko.org/wiki/Specialized_USB_cables#How_to_make_a_USB_cable_for_powering_attached_USB_devices_and_charging_the_Neo_while_in_host_mode_.28aka_Y- Cable.29 it is written that "Future kernels should switch to hostmode + external power when seeing this 47k resistor." Is this already implemented? Furthermore, it is mentioned that the resistors can be used to avoid suspend of the Freerunner. I hope, I still can suspend if I want? Thanks for your help Sven P.S.: If you wonder, what are my plans, have a look here: http://mokowecker.klomp.eu :-) _______________________________________________ hardware mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/hardware
