Writing a program that will use an xbox controller and a pic to control motors

I am looking for advice on where to start with regards to writing a c code program that will use an xbox controller and a pic to activate motors. Would anyone have advice on 开发者_开发知识库where to start?

Thank you,

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The xbox controller is a usb hub plus a usb hid device. Now I heard that the PIC24F can act as a usb host, so you'd only need an implementation of the usb hid class and you're almost done.