目 录第 1 章 概述.......................................................11.1 讨论背景..................................................11.2 设计实际目与意义..........................................21.2.1 设计目...............................................21.2.2 设计意义.............................................31.3 行人过街设施..............................................31.3.1 跑道灯...............................................41.3.2 倒计时灯.............................................4第 2 章 系统设计方案...............................................52.1 系统总体方案..............................................52.2 硬件设计..................................................52.2.1 单片机简介...........................................52.2.2 单片机进展三大阶段...................................62.2.3 单片机进展趋势.......................................62.2.4 单片机应用...........................................82.2.6 本设计中所用单片机 AT89C51...........................92.2.7 AT89C51 重要特性.....................................92.2.8 AT89C51 引脚排列及功能..............................102.2.9 AT89C51 最小系统电路................................112.3 主电路模块简介...........................................122.4 AT89C51 电路各功能模块设计...............................132.5 硬件系统功能原理.........................................14第 3 章 软件系统设计..............................................163.1 设计中所用到编程语言.....................................163.1.1 Keil C51 简介.......................................163.1.2 汇编语言简介........................................183.1.3 Keil C51 与汇编语言接口.............................193.2 重要程序与流程...........................................203.3 各重要某些软件设计.......................................213.4 Proteus 软件仿真..........................................21结 论............................................................24致 谢.............
