此程序用于检测EEPROM性能，测试方法如下：写入24c02一些数据，然后在内存中清除这些数据，

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。-This procedure is used to detect EEPROM performance, test methods are as follows: Write 24c02 some data, and then remove the data in memory, power down the memory will lose the information emperor, and then transferred from the 24c02 in the data. And write to see if the same.