电子时钟设计_DS1302+1602+可调闹钟+程序清单.doc

word完美格式 PAGE 精心整理 学习帮手 word完美格式 精心整理 学习帮手 摘要 随着单片机技术的飞速发展，在其推动下，现代的电子产品几乎渗透到了社会的各个领域，有力地推动了社会生产力的发展和社会信息化程度的提高，同时也使现代电子产品性能进一步提高。 时间就是金钱、时间就是生命、时间就是胜利……，准确的掌握时间和分配时间对人们来说至关重要，时钟是我们生活中必不可少的工具。电子钟的设计方法有很多种，但是基于单片机并通过LCD显示的电子时钟具有编程灵活、精确度高、便于携带、显示直观等特点。 利用STC89C52单片机对DS1302时钟芯片进行读写操作并通过1602字符液晶显示实时时钟信息，这样便构成了一个单片机电子时钟。 关键词：单片机，电子时钟，STC89C52，蜂鸣器 Abstract With the rapid development of microcomputer technology in its promotion, modern electronics into almost all areas of society, a strong impetus to the development of social productive forces and social improvement in the level of information, but also to further improve the performance of modern electronic products. Time is a money, time is life, time is victory… Accurate grasp of time and allocation of time is crucial to people, The clock is necessary in our life tools . 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 STC89C52 microcontroller by DS1302 clock chips for reading and writing operation and through 1602 character liquid crystal display real-time clock information so that forming a single chip electronic clock. Key Words: Microcontroller，STC89C52，Electronic clock，buzzer 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc292297214 HYPERLINK \l _Toc292297217 绪论 PAGEREF _Toc292297217 \h 1 HYPERLINK \l _Toc292297218 概述 PAGEREF _Toc292297218 \h 1 HYPERLINK \l _Toc292297219 研究目的 PAGEREF _Toc292297219 \h 1 HYPERLINK \l _Toc292297220 第1章 设计要求与方案论证 PAGEREF _Toc292297220 \h 2 HYPERLINK \l _Toc292297221 1.1 设计要求 PAGEREF _Toc292297221 \h 2 HYPERLINK \l _Toc292297222 1.2 系统基本方案选择和论证 PAGEREF _Toc292297222 \h 2 HYPERLINK \l _Toc292297223 1.2.1 单片机芯片的选择方案和论证 PAGEREF _Toc292297223 \h 2 HYPERLINK \l _Toc292297224 1.2.2 显示模块选择方案和论证————————————— PAGEREF _Toc292