【摘要】 介绍了基于示波器进行显示的简易逻辑分析仪的功能、系统组成和软硬件的设计方法,给出了详细的软件程序流程和硬件电路。该系统的控制部分采用单片机进行控制,输出电路采用由运算放大器构成的多踪显示电路设计,使电路结构简单,成本低。根据被测信号频率的高低,分别采用交替显示方式和断续显示方式,使高低频率的信号都能够稳定地显示,实用性强。更多还原

【Abstract】 This paper introduces the functions,system composition,software and hardware design methods of a simple logic analyzer which is based on an oscillograph for display.It also describes the program flow chart and circuit diagram.The control part uses SCM,and output part uses multi-trace circuit design consisted of operation amplifier,by which the circuit structure is simplified and cost reduced.It can uses alternating display mode or chop display mode respectively according to the frequency of measured signal.It can steadily display any signal in spite of the frequency,so it has good practicability.更多还原