单片机论文5000字
Time is always so valuable for people who can say that time and money is the equal sign. Accurate grasp of time and allocation of time is crucial to people. Therefore, the digital control based on microcomputer-based electronic clock on the display reflects a great advantage. Clock Design There are many ways, however, produced by single chip electronic clock is more flexible programming, and easy expansion of electronic capabilities, high accuracy, easy to carry, display visual and so on.
In this paper, through the use of MCS-51 microcontrollers internal timer / counter function to implement the electronic clock timing method. Mainly by the AT89S51 chip and LED digital display tube as the core, forming a single chip electronic clock.
Key word: Monolithic integrated circuit，AT89S51，Electronic clock，LED 名目
1 前言........................................................................................................................... 1 1.1 概述.. (1)
1.2 讨论目的 (1)
2 单片机概述 (2)
2.1 单片机的概念 (2)
2.2 单片机的进展史和进展趋势 (2)
2.2.1 单片机的进展历史 (2)
2.2.2 单片机的进展趋势 (3)
2.3 单片机的特点 (3)
2.4 MCS-51单片机的基本结构 (3)
2.4.1 MCS-51单片机的基本组成 (3)
2.4.2 AT89S51单片机的引脚 (5)
3 系统设计 (6)
3.1 设计方法及原理 (6)
3.1.1 设计方法 (6)
3.1.2 电子时钟原理 (6)
3.1.3 数码管显示原理 (6)
3.2 总体设计 (7)
3.2.1 系统说明 (7)
3.2.2 系统框图 (7)
3.3 模块设计 (8)
3.3.1 电源部分 (8)
3.3.2 复位电路 (8)
3.3.3 数码管的连接电路 (9)
3.3.4 掌握部分 (10)
4 软件设计 (11)
4.1 程序流程图 (11)electronic是什么意思啊
4.2 源程序 (13)
4.2.1 中断入口程序..................................................................................... 14 4.2.2 主程序 (15)
4.2.3 1秒计时程序 (15)
4.2.4 闪动调时程序 (17)
4.2.5 加1子程序 (18)
4.2.6 清零程序 (19)
4.2.7 时钟调整程序 (19)
4.2.8 显示程序 (22)
4.2.9 延时程序 (23)
5 总结 (24)
致谢 (25)
参考文献 (26)

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