利用fm24c256存储器记录实时电平信号，采用速率33us，记录时间约7秒(The FM24C256 memory is used to record the real time level signal, and the rate is 33us. The recording time is about 7 seconds)

c8051f340控制时钟芯片ds3231读取数据到at2402存储再写入显示屏显示(C8051f340 control clock chip ds3231 reads data to at2402 storage and writes it to display screen)