使用AVR单片机Atmega16作为mcu，CH376S作为USB控制芯片，使用C语言在CVAVR环境下编程。实现了AVR单片机U盘通讯。功能：检测U盘插入、初始化磁盘、读取U盘厂商信息、在根目录下新建文件NEWFILE1.TXT、写入“欢迎王之清进入U盘世界！”、关闭文件。-AVR microcontroller ATmega16 as the MCU, CH376 USB controller chip, using the the programming of the C language CVAVR environment. The AVR microcontroller U disk newsletter. Functions: detection U disk inserted, initialize the disk, read U disk vendor information, in the root directory the New File NEWFILE1.TXT, write " Welcome Wang Qing enter the U disk world!"　Close the file.