USB通信具有快速，热插拔的特性，可以广泛的应用到与计算机通信的地方。本示例是计算机通过USB总线，控制单片机对I2C E2PROM进行读写操作。下位机电路主要采用广州周立功单片机发展有限公司推出的USB Smart Board，*一个24系列的E2PROM。-USB Communication is fast, hot swap features can be applied to a wide range of computer and communications areas. This example is the computer through USB, I2C control of E2PROM microcontroller and write. Under the main road machinery used Guangzhou weeks MCU Development Limited, who introduced the USB Smart Board, an external 24 series of E2PROM.