基于Proteus的频率计教学案例设计

Design of frequency meter teaching case based on Proteus

结合Proteus和STC89C51设计了一个频率测量系统,利用单片机内部的定时器T1产生1 s的闸门信号,通过LCD1602液晶显示频率和周期.在测量方波及正弦波时,利用放大整形电路将信号变换为单片机能采集到的矩形波,再提供给单片机控制模块.整个系统结合Proteus进行了效果的仿真.基于此的教学案例生动、直观,可以很好地把握教学的侧重点,又利于知识的综合运用及学生综合能力的提升.

In combination with Proteus and STC89C51,a frequency measurement system is designed to generate the gate signal of 1s by using the timer T1 inside the single chip microcomputer and display the frequency and cycle through LCD1602 liquid crystal.In the measurement of sine wave and square wave,the amplification and shaping circuit is used to transform the signal into a rectangular wave,which is then provided to the single chip computer control module.In the design,the system was simulated with the Proteus simulation software.Based on this case,intuitive and vivid.Teaching focus can be well implemented,the comprehensive utilization of students′knowledge and the comprehensive improvement of their ability can also be well realized.