毕业设计 抢答器课程设计.doc

《单片机技术》课程设计说明书 抢答器 院 、 部： 电气与信息工程学院 学生姓名： 指导教师： 职称 专 业： 电子信息工程 班 级： 完成时间： 摘 要 抢答器经常在团队竞赛或大型娱乐活动中使用，具有很大的实用价值和效应。该项目的主要是基于MCS51单片机控制系统来完成的课程研究，其中主要应用单片机系统中的按键、数码显示、指示灯等模块，而在该项目中研究的重点就是怎样使用按键来实现任务所需要的的结果，而在本项目程序设计中使用了键盘扫描的方式来简化程序的长度。通过使用Proteus的仿真，实现了一个4人的抢答器。 关键词：抢答器；AT89S52；按钮；数码显示管 ABSTRACT Responder team competition or often used in large-scale entertainment events , has great practical value and effect . The project s main research programs MCS51 microcontroller -based control system to complete , the main application of the SCM system keys , digital display , lights and other modules, while the focus of the project is to study how to use the keys to achieve the required tasks the results, and program design in this project are used to simplify the way the keyboard scan the length of the program. By using Proteus simulation , achieving a 7 Responder Key words ：responder;AT89S52; keys;digital display 目 录 1 课题任务、功能要求及设计方案·····································1 1.1 课题任务····················································1 1.2 功能要求说明···············································1 1.3 设计方案及工作原理·········································1 2 课题硬件系统的设计···············································3 2.1 单片机硬件结构及硬件电路···································3 2.2 硬件系统各功能模块的简介···································4 2.3 电路原理图、PCB图、元器件布局图···························4 2.4 元器件清单·················································4 3 课题软件系统的设计···············································5 3.1 课题中单片机资源使用情况···································5 3.2 软件系统中各模块功能的介绍·································5 3.3 软件系统流程框图···········································7 3.4 软件系统程序清单···········································7 4 结论和误差分析···················································8 4.1 项目的设计结论和使用说明···································8 4.2 仿真结果··································