目 录绪论............................................................................................................11 设计目的和意义.....................................................................................22 目标与总体方案.....................................................................................22.1 时钟信号发生器.................................................................................................................32.2 计数器................................................................................................................................42.3 主控制器............................................................................................................................53 设计方法和内容.....................................................................................63.1 实验器材及介绍.................................................................................................................63.1.1 74LS00.....................................................................................................................73.1.2 74LS48.....................................................................................................................83.1.3 74LS90.....................................................................................................................83.1.4 74LS20.....................................................................................................................93.1.5 显示数码管............................................................................................................103.1.6 电阻.......................................................................................................................133.1.7 发光二极管............................................................................................................144、 软件仿真..........................................................................................164.1、EWB ...
