基于单片机89C51的数码管显示时钟设计

基于单片机的数字时钟

摘 要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实现计时功能，将其时间数据经单片机输出，利用显示出来。通过键盘可以进行校时、定时等功能。输出设备显示器可以用液晶显示技术和数码管显示技术。 本系统利用单片机实现具有计时、校时等功能的数字时钟，是以单片机为核心元件同时采用LD数码管显示器动态显示“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。另外具有校时功能，利用单片机实现的数字时钟具有编程灵活，便于功能的扩充等优点。关键词：单片机显示Digital clock system

Abstract

SCM in multi-function digital clock in the application is already very common, people on the digital clock function and are very familiar with the work order. But very few know that its internal structure and working principles. SCM as a digital clock from the core controller, it can achieve the clock signal timing, its time data by the MCU output, use of monitors displayed. Keyboard can be carried out at the school, timing, and other functions. Output devices can be used liquid crystal display monitors and digital technology to display the technology. ???? The system uses MCU with time, the school features such as the digital clock, SCM AT89C51 is also used as the core components of the LED digital display dynamic display "when" and "points" and "seconds" of the modern time device . Compared with the traditional mechanical watches, it has a precise path that intuitive, and other characteristics. In addition a school function, stopwatch function, and the timer function to achieve MCU use of the digital clock with programming flexibility to facilitate the expansion of functional advantages. Key words: digital clock system; SCM; LED Monitor

目录

设计任务书………………………………………………………………………….………I

摘要…………………………………………………………………………………….……III

ABSTRACT…………………………………………………………………………….……IV

系统方案…………………………………………………………………………….…..I

系统概述设计任务书……………………………………………………….……………I

摘要……………………………………………………………………………….…….……III

ABSTRACT…………………………………………………………………………………..IV

系统方案………………………………………………………………………….………1

1.1 系统概述………………………………………………………………….…………1

1.2 方案论证…………………………………………………………………………….1

1.3 扩展功能…………………………………………………………………………….2

设计过程…………