【正文】 編號(hào)： 課程設(shè)計(jì)說明書題 目： 基于單片機(jī)的數(shù)字時(shí)鐘 院 （系）： 信息與通信學(xué)院 專 業(yè)： 電子信息工程 學(xué)生姓名： 學(xué) 號(hào)： 指導(dǎo)教師： 2022 年 12 月 03 日摘 要電子時(shí)鐘是一種非常廣泛日常計(jì)時(shí)工具，對(duì)現(xiàn)代社會(huì)越來越流行。它可以實(shí)現(xiàn)對(duì)年、月、日、星期、時(shí)、分、秒進(jìn)行計(jì)時(shí)等多種功能。數(shù)字時(shí)鐘采用直觀數(shù)字顯示，還具有時(shí)間校準(zhǔn)等功能。該電路采用AT89S52單片機(jī)作為核心，功耗小，能在3V的低壓工作，電壓可選用35V電壓供電。本系統(tǒng)硬件部分由AT89S52單片機(jī)、1062液晶顯示器、鍵盤、蜂鳴器系統(tǒng)等部分構(gòu)成。軟件部分在keil環(huán)境下用C51語(yǔ)言編寫，包括時(shí)間顯示、時(shí)間校對(duì)。基于單片機(jī)技術(shù)原理，以單片機(jī)芯片AT89C52作為核心控制器，通過硬件電路的制作以及軟件程序的編制，設(shè)計(jì)制作出一個(gè)簡(jiǎn)易數(shù)字時(shí)鐘系統(tǒng)。單片機(jī)擴(kuò)展的LCD顯示器用來顯示秒、分、時(shí)、星期、日、月、年計(jì)數(shù)單元中的值。整個(gè)設(shè)計(jì)包括兩大部分：硬件部分和軟件部分，以單片機(jī)為核心，配以一定的外圍電路和軟件。硬件是整個(gè)系統(tǒng)的基礎(chǔ)，軟件部分則要合理、充分地支持和使用系統(tǒng)的硬件，從而完成系統(tǒng)所要完成的任務(wù)。關(guān)鍵詞：?jiǎn)纹瑱C(jī)AT89S52；液晶顯示1602；按鍵AbstractElectronic clock is a very extensive daily timing tool , more and more popular in modern society . It can be achieved on the year, month , date, day , hour, minute , seconds chronograph and other functions . Intuitive digital display digital clock , also has a time calibration functions. This circuit uses AT89S52 microcontroller as the core , low power consumption , can work in lowvoltage 3V voltage can choose 3 ~ 5V voltage supply.The hardware of the system by the AT89S52 microcontroller , some 1062 LCD monitor, keyboard , buzzer systems and other accessories. Software part in keil environment with C51 language, including the time display, time proofreading.Based on the principle of singlechip technology , chip AT89C52 microcontroller as the core controller , and a software program produced by the preparation of the hardware circuit , designed to create a simple digital clock system. Singlechip LCD display is used to display the extended seconds, minutes , hours, day, date, month, year counting unit value. The whole design consists of two parts: hardware and software ponents , microcontroller as the core , with some peripheral circuits and software. Hardware is the foundation of the entire system, the software part will have reasonable and adequate to support the use of systems and hardware ,thus pleting the system to plete the task .Keywords: Microcontroller AT89S52。 LCD 1602。 buttons目 錄引言 ...............................................................................................................................................................51 設(shè)計(jì)方案 .............................................................................................................................................5 數(shù)字時(shí)鐘的設(shè)計(jì)分析 .........................................................................................................5 設(shè)計(jì)要求 .............................................................................................................................62 總體系統(tǒng)方案的設(shè)計(jì)與選擇論證 .......................................................................................6 計(jì)時(shí)方案 .............................................................................................................................6 控制芯片的選擇 ........................................................6 芯片控制語(yǔ)言的選擇 ....................................................73 系統(tǒng)電路的設(shè)計(jì)及原理說明 ...........................................8 .......................................................................................................8 ...........................................................................................8 單片機(jī)最小系統(tǒng)電路介紹 ..............................................................................................................8 LCD1602顯示電路 .............................................................................................................................94 軟件設(shè)計(jì)部分 .................................................................................................................................9 軟件編程思路 ......................................................................................................................................9 電路的仿真........................................................................................................................................10 ....................................................................................................................10..........................................................................................................................10 電路調(diào)試.............................................................................................................................................10..........................................................................................................................................10..........................................................................................................................................10 5 結(jié)論 ......................................................................................................................................................10謝 辭 .............................