实现单片机和PC的USB通信，并识单片机为USB鼠标 使用KEIL C编程，已经经过验证。源码包括USB通信模块， 鼠标操作模块。内有详细使用说明-Achieve the microcontroller and PC, USB communications, and knowledge to use MCU for the USB mouse KEIL C programming, has been verified. Source, including USB communication mo