基于单片机的公交车报站器的设计Basedonsinglechipdesignofbusstops基于单片机的公交车报站器的设计目录摘要....................................................................................................................................IIAbstract.....................................................................................................................................II第1章绪论...............................................................................................................................21.1课题研究背景及意义...................................................................................................21.2国内外研究现状...........................................................................................................21.3主要设计目标...............................................................................................................21.4本文研究内容...............................................................................................................2第2章系统硬件设计...............................................................................................................22.1基于单片机的公交车报站器系统总体设计...............................................................22.2电源系统设计...............................................................................................................22.3中央处理单元...............................................................................................................22.3.1STC89C52单片机主要特性............................................................................22.3.2单片机的最小系统............................................................................................22.4语音播报模块...............................................................................................................22.4.1ISD4004语音芯片...........................................................................................22.4.2语音电路设计....................................................................................................22.5显示模块.......................................................................................................................22.5.18×8点阵模块介绍...........................................................................................22.5.2显示电路设计....................................................................................................22.6按键控制模块...............................................................................................................22.6.1键盘扫描原理....................................................................................................22.6.2键盘电路设计....................................................................................................22.7本章小结.......................................................................................................................2第3章系统软件设计...............................................................................................................23.1公交车报站器软件总体设计.......................................................................................23.2录音子程序设计...........................................................................................................23.3报站子程序设计...............
