基于單片機(jī)的信息顯示系統(tǒng)

電氣自動(dòng)化論文編號(hào):ZD1122    論文字?jǐn)?shù):17077,頁(yè)數(shù):47

目  錄
摘   要 i
Abstract ii
目  錄 iii
第一章  緒 論 1
1.1 概述 1
1.2 本次設(shè)計(jì)方案 1
第二章 AT89C51單片機(jī)介紹 3
2.1 AT89C51簡(jiǎn)介 3
2.2 AT89C51的主要特性 3
2.3 AT89C51的管腳說(shuō)明 4
2.4 AT89C51振蕩器特性 5
2.5 AT89C51的芯片擦除功能 5
第三章  漢字液晶顯示的原理與設(shè)計(jì) 6
3.1 LCD12864選擇 6
3.2 不帶中文字庫(kù)的12864概述 6
3.2.1 芯片模塊概述 6
3.2.2 漢字顯示原理 8
3.3 自帶字庫(kù)的12864概述 12
3.3.1模塊接口說(shuō)明 13
3.3.2 模塊主要硬件構(gòu)成說(shuō)明 14
3.3.3 指令說(shuō)明 15
3.3.4 應(yīng)用舉例 18
第四章  硬件設(shè)計(jì) 20
4.1 總體結(jié)構(gòu) 20
4.1.1 顯示系統(tǒng)的結(jié)構(gòu) 20
4.1.2 總體設(shè)計(jì)硬件圖 20
4.2單片機(jī)模塊 20
4.2.1 主要特性 22
4.2.2 管腳說(shuō)明 23
4.3 復(fù)位電路模塊 24
4.4 LCD液晶顯示電路 25
4.5 按鍵模塊 26
第五章 軟件設(shè)計(jì) 27
5.1 顯示系統(tǒng)的主程序 27
5.2 顯示子程序 28
5.3 按鍵子程序 29
第六章 結(jié)論 30
參考文獻(xiàn) 31
致謝 32
附錄 33

摘   要
 單片機(jī),是集CPU ,RAM ,ROM ,計(jì)數(shù)和多種接口于一體的微控制器。自20世紀(jì)70年代問(wèn)世以來(lái)，以其極高的性能價(jià)格比，受到人們的重視和關(guān)注。它體積小、重量輕、抗干擾能力強(qiáng)、環(huán)境要求不高、價(jià)格低廉、可靠性高、靈活性好、開(kāi)發(fā)較為容易，廣泛應(yīng)用于智能生產(chǎn)和工業(yè)自動(dòng)化上。     液晶顯示器(LCD) 由于體積小、質(zhì)量輕、功耗微、壽命長(zhǎng)、無(wú)電磁輻射等優(yōu)點(diǎn),已經(jīng)逐漸成為各種便攜式電子信息產(chǎn)品的理想顯示器. 在以單片機(jī)控制的產(chǎn)品中,液晶顯示器的使用更是越來(lái)越廣。
本課題通過(guò)MCS-51單片機(jī)來(lái)實(shí)現(xiàn)LCD的顯示，采用匯編語(yǔ)言進(jìn)行編程，可以實(shí)現(xiàn)以下一些功能：漢字的滾動(dòng)顯示，并可以通過(guò)按鍵進(jìn)行選擇性顯示。本次設(shè)計(jì)的顯示系統(tǒng)由LCD顯示電路，按鍵調(diào)整電路兩部分組成。51單片機(jī)通過(guò)軟件編程，在LCD12864液晶屏上實(shí)現(xiàn)漢字的滾動(dòng)顯示；用戶(hù)可以根據(jù)需要通過(guò)按鍵選擇所需要顯示的內(nèi)容。    本文詳細(xì)介紹了AT89C51單片機(jī)的基本原理，分析了AT89C51各個(gè)管腳的功能及它在設(shè)計(jì)電路中的作用。本文論述了LCD12864液晶屏的工作原理及其軟件設(shè)計(jì)過(guò)程。

關(guān)鍵詞：?jiǎn)纹瑱C(jī) LCD顯示 12864

Abstract
  The single-chip microcomputer, collects CPU, RAM, ROM, the counting and many kinds of connections in a body. It has been published since the 70's of 20th century and has high performance, so it attracts lots of people’s attention. Its volume is small，the weight is light，the capacity of resisting disturbance is strong，the environmental challenge is not high，the price is not expensive and the development is easy, for that, it is widely used in the intelligent production and the industrial automation.
 Because Liquid Crystal Display (LCD) has many merits , such as small bulk ,tiny weight , long life , and no electromagnetic radiation , and it consumes low power ,it has been an ideal display for all kinds of carry-home electron info products. LCD has been widely used in these products that are embedded a single chip.
 This topic through the MCS-51 single chip to achieve the LCD display, the use of assembly language programming, you can achieve the following functions: rolling display of Chinese characters, and can show selective button. The design of the display system by the LCD display circuit, buttons to adjust the circuit composed of two parts. 51 single-chip programmable via software on the LCD screen in the realization of LCD12864 rolling display of Chinese characters; the user can select through the key elements required to show     We can learn the basic principles of the AT89C51 from this text. It is good for us to realize the function of the base pins and the function in the circuit. This article also discourses the working principles of the LCD12864, we can understand their software design procedure from this passage.
 
 Keywords: Singlechip  LCD  12864