本例通过24C02芯片来对IIC加以学习，编写一些常用的IIC程序。24C02芯片片，就是一个带有I2C总线接口的E2PROM存储器，具有掉电记忆的功能.-24c02

-In this case by the 24C02 chip on the IIC to study, write some of the IIC program. 24C02 chip-chip, is a E2PROM memory with I2C bus interface, power-down-memory function.-24c02