IIC协议 EEPROM24c02 存数读取数据,用于检测EEPROM性能，测试方法如下：写入24c02一个数据，然后在内存中改变这些数据，掉电后主内存将失去这些信息，然后从24c02中调入这些数据。看是否与写入的相同。(IIC protocol EEPROM24c02 number read data, is used to detect EEPROM performance testing methods are as follows: write a 24C02 data, and the