目 录 一、题目要求................................................................................................................ 1 二、原理分析与方案设计............................................................................................ 2 2 .1 原理分析........................................................................................................... 2 2 .2 方案设计........................................................................................................... 2 三、系统设计................................................................................................................ 4 3 .1 系统框图........................................................................................................... 4 3 .2 模块设计........................................................................................................... 4 3 .2 .1 分频模块................................................................................................. 4 3 .2 .2 计数模块................................................................................................. 5 3 .2 .3 译码模块................................................................................................. 7 3 .2 .4 显示模块................................................................................................. 8 3 .2 .5 控制模块................................................................................................. 9 3 .3 系统顶层文件................................................................................................... 9 四、仿真及结果分析.................................................................................................. 1 1 4 .1 软件仿真......................................................................................................... 1 1 4 .1 .1 计数器仿真........................................................................................... 1 1 4 ....
