FPGA实现usb驱动
代码说明：
应用背景This is the very first officially available release of the core - It is still under active development - Please do not modify the sources ! - Things that are not implemented yet, or are known not to work yet: - UTMI line/link control interface is not implemented yet. This includes: - Detection of attach/detach - Speed negotiation (Full/High Speed) - USB reset - USB suspend - There is no logic in the core to "help" suspending it. I"m not quite sure yet what to do in this area. (Suggestions welcomed !) - There is no easy way to configure the core (number of endpoints, buffer size) - There has been absolutely no testing done on the core 关键技术This file describes the current status of the checked in HDL code. Please su
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