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數(shù)字時鐘的課程設(shè)計--基于單片機(jī)的數(shù)字時鐘(已修改)

2025-06-19 14:00 本頁面
 

【正文】 編號: 課程設(shè)計說明書 題 目: 基于單片機(jī)的數(shù)字時鐘 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: 指導(dǎo)教師: 2021 年 12 月 03 日 摘 要 電子時鐘是一種非常廣泛日常計時工具,對 現(xiàn)代社會越來越流行。它可以實(shí)現(xiàn)對年、月、日、星期、時、分、秒進(jìn)行計時等多種功能。數(shù)字時鐘采用直觀數(shù)字顯示,還具有時間校準(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語言編寫,包括時間顯示、時間校對。 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)計制作出一個簡易數(shù)字時鐘系統(tǒng)。 單片機(jī)擴(kuò)展的 LCD顯示器用來顯示秒、分、時 、星期、日、月、年 計數(shù)單元中的值。整個設(shè)計包括兩大部分: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: 單片機(jī) AT89S52;液晶顯示 1602;按鍵 Abstract Electronic 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 ........................................................................................................................................... 1 1 設(shè)計方案 .......................................................................................................................... 2 數(shù)字時鐘的設(shè)計分析 ........................................................................................................ 3 設(shè)計要求 ............................................................................................................................ 2 2 總體系統(tǒng)方案的設(shè)計與選擇論證 .................................................. 錯誤 !未定義書簽。 計時方案 ........................................................................................... 錯誤 !未定義書簽。 控制芯片的選擇 ....................................... 錯誤 !未定義書簽。 芯片控制語言的選擇 ................................... 錯誤 !未定義書簽。 3 系統(tǒng)電路的設(shè)計及原理說明 .......................... 錯誤 !未定義書簽。 單片機(jī)性能與特點(diǎn) ......................................................................................... 8 單片機(jī)的引腳及內(nèi)部結(jié)構(gòu) ............................................................................... 9 單片機(jī)最小系統(tǒng)電路介紹 ................................................................................................ 9 LCD1602 顯示電路 ............................................................................................................. 9 4 軟件設(shè)計部分 ............................................................................... 錯誤 !未定義書簽。 軟件編程思路 .................................................................................................................... 9 電路的仿真 ........................................................................................................................ 9 仿真原理圖 ..................................................................................................... 10 仿真結(jié)果 ..........................................................................................................................10 電 路調(diào)試 .............................................................................................................................................10 硬件調(diào)試 ..........................................................................................................................................10 軟件調(diào)試 ..........................................................................................................................................10 5 結(jié)論 ...................................................................................................................................10 謝 辭 .....................................................................................................................................10 參考文獻(xiàn) ................................................................................................................................12 附 錄 ........................................................................................................................................................13 附錄一:原理圖 ...................................................................................................................................13 附錄二: PCB圖 ......................................................................................................
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