毕业设计论文基于at89c52多功能数字钟的设计与仿真.doc

江阴职业技术学院 毕业论文 课题： 基于AT89C52多功能数 字钟的设计与仿真 专 业 学生姓名 班 级 学 号 指导教师 完成日期 摘 要 时钟，自从它发明的那天起，就成为人类的朋友，但随着时间的推移，科学技术的不断发展，人们对时间计量的精度要求越来越高，应用越来越广。怎样让时钟更好的为人民服务，怎样让我们的老朋友焕发青春呢？这就要求人们不断设计出新型的时钟。现今，高精度的计时工具大多数都使用了石英晶体振荡器，由于电子钟，石英钟都采用了石英技术，因此走时精度高，稳定性好，使用方便，不需要经常调校，数字式电子钟用集成电路计时时，译码代替机械式传动，用LED 显示器代替指针显示进而显示时间，减小了计时误差，这种表具有时、分、秒显示时间的功能，还可以进行时和分的校对，片选的灵活性好。本文利用单片机实现数字时钟计时功能的主要内容，其中AT89C52 是核心元件，同时采用数码管动态显示“时”、“分”、“秒”的现代计时装置。与传统机械表相比，它具有走时精确、显示直观等特点。它的计时周期为24 小时，显满刻度为“23时59 分59秒”。 Abstract Clock, since it invented the day to become the friend of mankind, but as time goes on, science and technology The continuous development of the precision measurement of time people have become increasingly demanding, more and more widely. How to make the clock better Serve the people, how to make our old friend rejuvenated it? This requires that people continue to design a new type of clock. Today, the majority of high-precision timing tools are used in crystal oscillator, the electronic clock, quartz clock Have used quartz technology, so take the time and high precision, good stability, easy to use, does not require frequent calibration, digital Time clock integrated circuit, the decoding instead of mechanical transmission, display with LED display instead of a pointer and then were Show time, reduce the timing error, this table has hours, minutes and seconds time display function, also can be hours and minutes Proof-reading, the flexibility of a good chip select. In this paper, single chip digital clock timing function of the main elements, which AT89C52 is a core component, while using digital dynamic display when, sub, second of the modern fashion dollars Home. Compared with the traditional mechanical watch, it has the exact travel time, visual display and so on. Its time period is 24 hours, Full scale was 23:59:59. 目 录 摘 要 I Abstract II 目 录 III 第一章 绪论 1 1.1设计目的 1 1.2设计步骤 1 1.3设计指标 1