本系统采用AT89C51控制MAX038产生波形的频率范围和类型，并采用输出驱动放大电路，对MAX038输出的波形信号进行放大。同时还设计了时钟复位电路和键盘显示接口。系统中利用AT89C51的功能，设计了频率测量电路，并完成了硬件电路所需要的软件驱动程序。-AT89C51 control system uses the MAX038 waveform generated frequency range and type, and the use of output driver amplifier circuit, the output of the MAX038 waveform signal amplification. At the same time, also designed the clock reset circuit and a keyboard display interface. AT89C51 use system functions, frequency measurement circuit was designed and completed the circuit by the hardware required software drivers.