D12和89s52+K9F5608组成的系统，完成U盘的功能，此程序是C语言版本，其中D12的操作部分，是周立功的D12开发板上提供的库函数-D12 and 89s52 K9F5608 system consists of complete U-function, this procedure is C language version, which D12 part of the operation, Zhou, who is the D12 development board for the

优盘程序,符合USB1.1规范。硬件平台：ATmega162+PDIUSBD12+K9F5608。软件平台：ICCAVR。协议：Bulk-Only Transport,Reduced block command.-Youpan procedures, in line with standard USB 1.1. Hardware platforms : ATmega162 PDIUSBD12 K9F5608. Software platform : ICCAVR. Agreement : Bul