C8051F a USB-based firmware, realize the control channel descriptor transmission, as well as the basic channel BULK data transfer, USB devices for beginners is a good reference. Can refer to the descriptors Liezi information according to their own equipment will be able to realize the corresponding changes to their own devices enumeration process.

Firmware
........\c8051F320.h
........\Interrupt Firmware Reference Manual.pdf
........\ReadMe.txt
........\USB_DESCRIPTOR.c
........\USB_DESCRIPTOR.h
........\USB_INT
........\USB_Int.wsp
........\USB_ISR.c
........\USB_MAIN.c
........\USB_MAIN.h
........\USB_REGISTER.h
........\USB_STD_REQ.c

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