数字时钟毕业论文.docVIP

郑州交通职业学院 毕 业 论 文（设 计） 论文（设计）题目：数字时钟的设计 所属系别 信息工程系 专业班级 电子信息工程 姓 名 袁 坐 春 学 号 200908060830243 指导教师 周 毅 撰写日期 2012 年 4 月 摘 要 近年来，随着电子产品的发展，人们对数字时钟的要求越来越高，本文针对人们的这一需求，设计了一种有单片机控制的智能化数字时钟，功能强大，界面友好，更好的满足了人们对它的智能化要求。近些年，随着科技的发展和社会的进步，人们对数字钟的要求也越来越高，传统的时钟已不能满足人们的需求。多功能数字钟不管在性能还是在样式上都发生了质的变化，有电子闹钟、数字闹钟等等。单片机在多功能数字钟中的应用已是非常普遍的，人们对数字钟的功能及工作顺序都非常熟悉。但是却很少知道它的内部结构以及工作原理。由单片机作为数字钟的核心控制器，可以通过它的时钟信号进行计时实现计时功能，将其时间数据经单片机输出，利用显示器显示出来。通过键盘可以进行定时、校时功能。输出设备显示器可以用液晶显示技术和数码管显示技术。 关键词：VHDL，数字时钟，显示，计时。 Abstract In recent years, with the development of electronic products, people on the digital clock and taller to the requirement of this paper, the demand of people, design a kind of a single chip microcomputer control intelligent digital clock, powerful, friendly interface, better satisfy the peoples its intelligent requirements. In recent years, with the development of science and technology and the progress of the society, the people to the requirements of the digital clock more and more is also high, the traditional clock already cant satisfy peoples needs. Multi-function digital clock in performance in the style or whatever have undergone a qualitative change, have an alarm clock, digital alarm clock, and so on. Microcomputer in the multi-function digital clock application already is very common, people on a digital clock function and working order is very familiar with. But few know its internal structure and working principle. By single chip microcomputer as the core of the digital clock controller can through its clock signal timing achieve timing function, its time data SCM outputs, use display shows out. Through the keyboard can be timing, reset function. Output devices monitor can use liquid crystal display technology and digital tube display technology. Key word: VHDL, digital clock, display, the timer. 目 录 1 引言 5 2 设计要求与方案论证 5 2.1　设计要求 5 2.2 功能要求 5 2.1.2 创新要求 6 2.2 系统基本方案选择和论证 6 2.2.1单片机芯片的选择方案和论证 6 2.2.2 显示模块选择方案和论证 6 2.2.3时钟芯