自動(dòng)報(bào)時(shí)系統(tǒng)

①頁(yè)數(shù) 34
②字?jǐn)?shù) 10216
③摘要
摘 要：本設(shè)計(jì)是利用單片機(jī)原理設(shè)計(jì)的自動(dòng)報(bào)時(shí)系統(tǒng)。其中，自動(dòng)報(bào)時(shí)系統(tǒng)以AT89C51單片機(jī)為核心，采用4個(gè)獨(dú)立式按鍵來(lái)調(diào)整時(shí)間和設(shè)置鬧鈴，用共陰極動(dòng)態(tài)六段LED動(dòng)態(tài)顯示來(lái)顯示時(shí)間，計(jì)時(shí)方案采用時(shí)鐘芯片DS1302。以8路反向動(dòng)態(tài)緩沖器74LS240作為L(zhǎng)ED的動(dòng)態(tài)掃描的段碼控制驅(qū)動(dòng)信號(hào),用P2.0—2.5外接一片集電極開路反向門電路7406(OC門)做6位LED的位選信號(hào)驅(qū)動(dòng)口，6個(gè)數(shù)碼管的8根段選線分別接74LS240的輸出,LED共陰極端與7406的輸出端相連,從左到右依次來(lái)顯示時(shí)，分，秒。
正文中首先簡(jiǎn)單描述了硬件系統(tǒng)的工作原理，且附以硬件系統(tǒng)的設(shè)計(jì)框圖，論述了本次畢業(yè)設(shè)計(jì)所應(yīng)用的各種硬件接口技術(shù)和各個(gè)接口模塊的功能及工作過程, 并具體描述了外接電路接口的軟、硬件調(diào)試。
本文撰寫的主導(dǎo)思想是軟、硬件相結(jié)合，以硬件為基礎(chǔ)，來(lái)進(jìn)行各功能模塊的編寫。
Abstract:This design principle is to use microcontroller designed for automated timekeeping system. Among them, automated timekeeping system to AT89C51 microcontroller as the core, with four separate buttons to adjust time and alarm settings, with a total of cathode dynamic sixth LED dynamic display to display the time clock chip timing program using DS1302. 8-way reverse Dynamic Buffer 74LS240 as the dynamic scan segment LED code control drive signal, with P2.0-2.5 External 1 open-collector reverse gate 7406 (OC doors) to do the 6-bit selection signal drive LED mouth, 6 to 8 segment digital tube alignment were then 74LS240's output,
First, a brief description of the body of the hardware system works, and accompanied by the design of the hardware system block diagram, discussed the application of this graduation design a variety of hardware interface technology and various interface module functions and work processes, and specific description of the external circuit interface hardware and software debugging.
This article written by the leading idea is that hardware and software combined with hardware-based, to the preparation of various functional modules.

④目錄
目 錄
1 前言 1
2 硬件系統(tǒng)設(shè)計(jì) 1
2.1 總體框圖設(shè)計(jì) 1
2.2 單片機(jī)選型 1
2.3 獨(dú)立式按鍵控制電路 4
2.4 LED動(dòng)態(tài)顯示電路 7
2.5 時(shí)鐘芯片DS1302 10
2.6 電路原理 13
3 軟件設(shè)計(jì) 14
3.1 設(shè)計(jì)思路 14
3.2主程序模塊 14
3.3顯示程序模塊 16
3.4 DS1302的寫時(shí)鐘程序模塊 18
3.5按鍵程序模塊 18
3.6 定時(shí)器程序模塊 20
4 系 統(tǒng) 調(diào) 試 22
結(jié) 論 25
致 謝 26
參考文獻(xiàn) 27
附 錄A 28


⑤關(guān)鍵字
單片機(jī)，自動(dòng)報(bào)時(shí)系統(tǒng)，位碼，段碼，顯示
: microcontroller; automatic timekeeping system;-bit code; segment code; show
⑥參考文獻(xiàn)
[1] 林軍.單片機(jī)微型計(jì)算機(jī)原理及接口技術(shù)實(shí)驗(yàn)指導(dǎo)與實(shí)訓(xùn).北京.中國(guó)水利水電出版社,2004
[2] 李傳軍.單片機(jī)原理及應(yīng)用.鄭州.河南科技出版社,2006
[3] 華羅庚.王元.論一致分布與近似分析.北京.中國(guó)科學(xué),1973
[4] 朱善軍等.單片機(jī)接口技術(shù)與應(yīng)用.北京.清華大學(xué)出版社,2005
[5] 饒慶.89c51單片機(jī)實(shí)用技術(shù).北京.人民郵電出版社,2003
[6] 楊西明.朱騏.單片機(jī)編程與入門.北京.機(jī)械工業(yè)出版社,2004
[7] 劉和平，劉躍.單片機(jī)原理及應(yīng)用.重慶.重慶大學(xué)出版社，2004
[8] 陳明熒.89C51單片機(jī)課程設(shè)計(jì)實(shí)訓(xùn)教材.北京.清華大學(xué)出版社，2004