【正文】 課 程 設 計 題目 基于 51 單片機的數(shù)字時鐘 摘要 I 摘 要 數(shù)字鐘已成為人們?nèi)粘Ｉ钪斜夭豢缮俚谋匦杵?，廣泛用于個人家庭以及辦公室等公共場所，給人們的生活、學習、工作、娛樂帶來極大的方便。由于數(shù)字集成電路技術的發(fā)展和 采用了先進的石英技術，使數(shù)字鐘具有走時準確、性能 穩(wěn)定 、攜帶方便等優(yōu)點，它還用于計時、自動報時及自動控制等各個領域。盡管目前市場上已有現(xiàn)成的數(shù)字鐘集成電路芯片出售，價格便宜、使用也方便，但鑒于單片機的定時器功能也可以完成數(shù)字鐘電路的設計，因此進行數(shù)字鐘的設計是必要的。在這里我們將已學過的比較零散的數(shù)字電路的知識有機的、系統(tǒng)的聯(lián)系起來用于實際，來培養(yǎng)我們的綜合 分析 和設計電路，寫程序、調試電路的能力 。 單片機具有體積小、功能強可靠性高、價格低廉等一系列優(yōu)點，不僅已成為工業(yè)測控領域普遍采用的智能化控制工具，而且已滲入到人們工作和和生活的各個角落，有力地推動了各行業(yè)的技術改造和產(chǎn)品的更新?lián)Q代，應用前景廣闊。 關鍵詞 :數(shù)字時鐘 智能 電路 目錄 II A digital clock has bee necessary in People39。s Daily life necessities, widely used in personal homes and offices in public places, give people life, study, work, entertainment bring great convenience. As digital integrated circuit technology development and the use of advanced quartz technology, make a digital clock has keeps good time, stable performance, carry convenience etc, it is also used in automatic timer, time and automatic control, etc. Despite already on the market at present the readymade integrated circuit chip digital clock sale, price cheap, use convenient, but with singlechip microputer timer function can also pleted a digital clock circuit design of digital clock, so the design is necessary. Here we will have already learned parative scattered digital circuit knowledge anic, system for actual, linked to develop our prehensive analysis and design circuits, writing programs, debugging circuit ability. SCM has small, strong function high reliability, low prices and so on a series of advantages, not only has bee widely used industry measurement and control field of intelligent control tool, and has perated into people work and and each corners of the life, effectively promote the various sectors of technical transformation and upgrading of products and broad prospect of application. Keywords: digital clock intelligent circuit 目錄 III 目 錄 摘 要 ........................................................................................................................ 1 目 錄 ........................................................................................................................ 3 第一章 數(shù)字時鐘設計的意義及目的 ..................................................................... 1 數(shù)字時鐘設計的意義 .......................................................................................... 1 數(shù)字時鐘設計的目的 .......................................................................................... 1 第二章 系統(tǒng)總體方案設計 ..................................................................................... 2 實現(xiàn)時鐘計時的基本方法 ................................................................................. 2 電子鐘的時間顯示 ...................................................................