基于Proteus软件仿真平台的虚拟示波器设计

Design of Virtual Oscilloscope Based on Proteus Software Simulation Platform

应用Proteus软件的仿真平台实现虚拟示波器的设计。把波形发生器产生的三角波或方波作为信号输入，通过ⅣD转换器对输入信号进行数据转换后输入到单片机中，通过单片机数据处理后用虚拟串口把数据输出到计算机中，最后由VC软件中的INGraph控件提取该数据并进行波形图的绘制。该文介绍了Proteus仿真软件的操作方法、波形发生器工作原理、A／D转换器的引脚功能咀及单片机的特点。

The design of virtual oscilloscope is realized by applying the simulation platform of Proteus software. The triangular wave or square wave generated by the waveform generator is taken as the input signal which is converted via A/D converter and then inputted to the MCU; furthermore it is processed by means Of the MCU and outputted to the computer by using a virtual serial port. Finally, the data is extracted by INGraph controls of VC software, and it to be plotted into the waveform as well. The article intro- duces the operational approach of Proteus simulation software, the working principle of the waveform generator, the lead - loot＇s func- tions of the A/D converter as well as the features of the MCU.