篮球比赛计时计分器的设计与仿真.doc
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篮球比赛计时计分器的设计与仿真,摘 要随着单片机在各个领域的广泛应用，许多用单片机作控制的计时计分系统也应运而生，如用单片机控制lcd液晶显示的计时计分器，用单片机控制led七段显示的计时计分器等。本文设计了一种由at89c51型号单片机编程控制led七段数码管作显示的篮球赛计时计分系统，并仿真实现。该系统具有赛程时间设...
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篮球比赛计时计分器的设计与仿真
摘 要
随着单片机在各个领域的广泛应用，许多用单片机作控制的计时计分系统也应运而生，如用单片机控制LCD液晶显示的计时计分器，用单片机控制LED七段显示的计时计分器等。本文设计了一种由AT89C51型号单片机编程控制LED七段数码管作显示的篮球赛计时计分系统，并仿真实现。该系统具有赛程时间设置，赛程时间暂停，以及即时刷新甲乙两队比分，上下半场交换比分，时间结束报警等功能。此外，该系统具有低功耗、可靠性、安全性以及低成本等特点，可广泛用于学校和小团体作为赛程计时计分。
关键词：单片机AT89C51，篮球赛计时，篮球赛计分，仿真
Abstract
With the extensive applications of the MCU, many system of timing and scoring which is controlled by MCU have come into being, for example the timing and scoring indicator displayed by the LCD which is controlled by MCU, and the timing and scoring indicator displayed by the MCU controlled seven-segment numeric display. In this article, the author designed a timing and scoring system for the basketball game showed by the seven-segment numeric display and it was programmed and controlled by the MCU in type AT89C51. This system has realized its simulation implementation. This system has various functions, such as setting and suspending the time of the game schedule, refreshing the results of the two groups and the point exchanging the places of the scores after shift their playgrounds and giving alarm when the game is over.Besides,this device owns the characters of low power consumption, reliability, safety and low cost, etc. the system is popular among the schools and group as a match schedule timing and scoring indicator.
Keywords: SCM AT89C51, basketball timing, basketball scoring，simulation
目录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1背景知识介绍 1
1.2 设计目的和意义 1
1.3球赛计时计分系统的发展和现状 2
1.4本文的主要研究内容 2
第2章 系统硬件介绍 3
2.1 MCS-51单片机简述 3
2.2显示器及其接口 5
2.3 CD4511芯片介绍 7
2.4 74LS21芯片介绍 8
2.5报警器工作原理 8
第3章 硬件电路设计 9
3.1 系统硬件组成和器件选择 9
3.2基本功能介绍 10
3.3计时电路和计分电路 11
3.4 串行接口工作原理 14
3.5比分校正控制电路 14
3.6球赛计时计分器的工作过程 15
第4章 系统软件设计和PROTEUS仿真 16
4.1总流程框图 16
4.2主要模块说明 16
4.3 系统仿真情况 18
第5章 结束语 20
参考文献 21
致 谢 22
附 录 23
摘 要
随着单片机在各个领域的广泛应用，许多用单片机作控制的计时计分系统也应运而生，如用单片机控制LCD液晶显示的计时计分器，用单片机控制LED七段显示的计时计分器等。本文设计了一种由AT89C51型号单片机编程控制LED七段数码管作显示的篮球赛计时计分系统，并仿真实现。该系统具有赛程时间设置，赛程时间暂停，以及即时刷新甲乙两队比分，上下半场交换比分，时间结束报警等功能。此外，该系统具有低功耗、可靠性、安全性以及低成本等特点，可广泛用于学校和小团体作为赛程计时计分。
关键词：单片机AT89C51，篮球赛计时，篮球赛计分，仿真
Abstract
With the extensive applications of the MCU, many system of timing and scoring which is controlled by MCU have come into being, for example the timing and scoring indicator displayed by the LCD which is controlled by MCU, and the timing and scoring indicator displayed by the MCU controlled seven-segment numeric display. In this article, the author designed a timing and scoring system for the basketball game showed by the seven-segment numeric display and it was programmed and controlled by the MCU in type AT89C51. This system has realized its simulation implementation. This system has various functions, such as setting and suspending the time of the game schedule, refreshing the results of the two groups and the point exchanging the places of the scores after shift their playgrounds and giving alarm when the game is over.Besides,this device owns the characters of low power consumption, reliability, safety and low cost, etc. the system is popular among the schools and group as a match schedule timing and scoring indicator.
Keywords: SCM AT89C51, basketball timing, basketball scoring，simulation
目录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1背景知识介绍 1
1.2 设计目的和意义 1
1.3球赛计时计分系统的发展和现状 2
1.4本文的主要研究内容 2
第2章 系统硬件介绍 3
2.1 MCS-51单片机简述 3
2.2显示器及其接口 5
2.3 CD4511芯片介绍 7
2.4 74LS21芯片介绍 8
2.5报警器工作原理 8
第3章 硬件电路设计 9
3.1 系统硬件组成和器件选择 9
3.2基本功能介绍 10
3.3计时电路和计分电路 11
3.4 串行接口工作原理 14
3.5比分校正控制电路 14
3.6球赛计时计分器的工作过程 15
第4章 系统软件设计和PROTEUS仿真 16
4.1总流程框图 16
4.2主要模块说明 16
4.3 系统仿真情况 18
第5章 结束语 20
参考文献 21
致 谢 22
附 录 23
