篮球赛计时计分器设计(任务书,开题报告,外文翻译,论文14000字)
摘 要
篮球赛计时计分器设计是一个典型的单片机开发设计实例。本文通过对AT89C51单片机的开发设计，利用proteus仿真进行硬件电路的搭建，利用keil软件实现软件编程，并通过keil和proteus的联调实现篮球赛计时计分器设计的仿真，满足篮球赛计时计分器对记录比赛时间的记录、修改和暂停，保证比分的及时刷新、交换和当比赛结束时，能够发出报警表示比赛结束等实际功能的实现。
基于AT89C51的篮球赛计时计分器设计，是通过以8051系统的最小应用系统为设计的基本构架，单片机的外部接口电路扩展，软件编程控制LED七段数码管显示比赛分数和时间，AT89C51的中断等研究实现基本功能的满足。通过此次设计，加深了对串行口接口扩展的认识与理解，更对单片机的开发设计有了更深刻的认识。
关键字：AT89C51；串行口；七段数码管；中断
Abstract
The design of the basketball timing scorer is a typical example of microcontroller development and design. This article through the development and design of the AT89C51 microcontroller, the use of proteus simulation for the hardware circuit to build, using keil software to achieve software programming, and through the joint adjustment of keil and proteus to achieve the basketball game timing scoring design simulation, to meet the basketball game timing scoring The device records, modifies, and pauses the recording of the game time, guarantees timely refreshment and exchange of the score, and when the game ends, it can issue an alarm to indicate that the actual function such as the end of the game has been achieved.
Based on the AT89C51 basketball timing scoring device design is to use the 8051 system's minimum application system for the design of the basic framework, microcontroller external interface circuit expansion, software programming control LED seven-segment digital display game score and time, AT89C51 interrupt And so on to achieve the satisfaction of basic functions. Through this design, we have deepened the understanding and understanding of the serial port interface expansion, and we have a more profound understanding of the development and design of the microcontroller.
Key Words：AT89C51；Serial port；LED；Break
目录
第1章 绪论 1
1.1背景 1
1.2 研究目的意义 1
1.3 AT89C51国内外现状 2
1.4设计要求与研究内容 2
1.4.1设计要求 2
1.4.2研究内容 2
1.5系统方案设计 3
1.5.1方案设计及其框图 3
1.5.2器件选择 3
第2章系统硬件电路的设计 4
2.1 AT89C51 4
2.1.1 AT89C51的基本结构 4
2.1.2 AT89C51的引脚及功能 4
2.1.4 AT89C51的中断 9
2.1.5 AT89C51最小系统 10
2.1.5.2复位电路 11
2.2计时电路 11
2.2.1显示器及其接口 12
2.2.2报警电路 16
2.2.3计时电路工作原理 16
2.3 计分电路 17
2.3.1 比分的显示 17
2.3.2比分的刷新控制 18
2.3.3比分的交换 19
2.3.4计分电路的工作原理 19
第3章 系统软件设计 21
3.1 系统程序流程图 21
3.2 部分软件设计 21
3.2.1清零 21
3.2.2 设置比赛时间 22
第4章 仿真结果 24
结 论 26
致谢 27
参考文献 28
附录 29
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