摘 要.............................................................................................................................IAbstract..........................................................................................................................II引 言............................................................................................................................11 绪论............................................................................................................................21.1 倒车报警器的背景和进展现状......................................................................21.2 汽车倒车报警器的意义..................................................................................31.3 完成工作..........................................................................................................32 相关的硬件和软件....................................................................................................52.1 单片机概述......................................................................................................52.2 STC89C52RC 芯片简介...................................................................................62.2.1 参数简介：.............................................................................................62.2.2 芯片引脚介绍.........................................................................................62.3 LCD 显示器简介..............................................................................................82.3.1 LCD1602 显示器简介............................................................................82.3.2 LCD1602 芯片引脚及功能介绍............................................................92.3 Keil 8051 C 编译器概述.................................................................................113 硬件电路设计.........................................................................................................133.1 超声波测距原理.........
