目 录引言------------------------------------------------------------------------------------------------------------------ 1 -第一章 总体设计方案--------------------------------------------------------------------------------------- 3 -1.1 设计思路-------------------------------------------------------------------------------------------------- 3 -1.2 原件清单-------------------------------------------------------------------------------------------------- 4 -第二章 电路设计与分析----------------------------------------------------------------------------------- 5 -2.1 AT89C51-------------------------------------------------------------------------------------------------- 5 -2.1.1 主要特性-------------------------------------------------------------------------------------------- 5 -2.1.2 管脚说明------------------------------------------------------------------------------------------- 5 -2.1.3 AT89C51 单片机的 P 口特点----------------------------------------------------------------------- 7 -2.2 设计原理图---------------------------------------------------------------------------------------------- 9 -第三章 软件设计与分析----------------------------------------------------------------------- 11 -3.1 位控法--------------------------------------------------------------------------------------------------- 11 -3.2 proteus 仿真------------------------------------------------------------------------------------------ 14 -第四章 总结与致谢----------------------------------------------------------------------------------------- 15 -4.1 总结------------------------------------------------------------------------------------------------------ 15 -4.2 致谢------------------------------------------------------------------------------------------------------ 18 -参考文献---------------------------------------------------------------------------------------------------------- 19 -附录 1-------------------------------...