畢業(yè)設(shè)計(jì)論文-基于單片機(jī)控制的led漢字顯示-展示頁(yè)
2024-11-22 10:05本頁(yè)面
【正文】 maintenance and update frequency of the Chinese character screen will be LED by the widespread application, it has very development prospects. In this paper, based on AT89C51 microcontroller 16 16 LED scrolling display character design and the use of software in the simulation and realization of Proteus. Introduces the character LED display hardware design, assembly programming and debugging, Proteus software simulation and other aspects of physical production, the design of the screen is small, less hardware, the circuit structure is simple and easy to implement. Can help the fans understand the character of the lattice electronic display principle, understanding the basic structure of SCM, working principle and application of methods and technologies to improve knowledge and ability to use single chip. Keywords： microcontroller, LED dot matrix ,Proteus simulation. LED 漢字顯示 III 目 錄 摘 要 ............................................................................................................................. 1 ABSTRACT ..................................................................................................................... 2 目 錄 ............................................................................................................................. 2 1 引 言 ........................................................................................................................... 1 LED漢字顯示研究背景及意義 ........................................................................... 2 本設(shè)計(jì)的研究?jī)?nèi)容及方法 ..................................................................................... 2 本設(shè)計(jì)的主要工作 .............................................................................................. 3 2 硬件電路組成及工作原理 .......................................................................................... 4 硬件電路組 成 .................................................................................................... 4 AT89C51簡(jiǎn)介 ............................................................................... ……… 4 時(shí)鐘電路設(shè)計(jì) .......................................................................................... 7 復(fù)位電路設(shè)計(jì) ........................................................................................... 15 1616LED點(diǎn)陣屏 ....................................................................................... 9 元器件選擇 ......................................................................................................10 硬件電路工作原理 ............................................................................................19 3 LED漢字顯示原理及字庫(kù)代碼獲取方法 .......................................................................20 漢字的點(diǎn)陣顯示原理 ........................................................................................20 字庫(kù)代碼獲取方法 ............................................................................................20 LED屏的顯示 ..................................................................................................22 4 程序設(shè)計(jì) .....................................................................................................................25 主程序 .............................................................................................................25 顯示子程序、延時(shí)子程序 ...................................................................................25 程序編譯、仿真 ...............................................................................................19 5 基于 PROTEUS的電路仿真 .........................................................................................30 PROTEUS 繪制原理圖 ......................................................................................30 PROTEUS 對(duì)單片機(jī)內(nèi)核的仿真 ...........................................................................31 6 結(jié)束語(yǔ) .......................................................................................................................33 參考文獻(xiàn) .........................................................................................................................35 致謝 ................................................................................................................................37 1 1 引 言 LED 漢字顯示研究背景及意義 受到體育場(chǎng)館用 LED 顯示屏需求快速增長(zhǎng)的帶動(dòng)，近年來(lái)，中國(guó) LED 顯示屏應(yīng)用逐步增多。而隨著奧運(yùn)會(huì)、世博會(huì)的到來(lái)， LED 顯示屏將廣泛的應(yīng)用在體育場(chǎng)館以及道路交通指示中， LED 顯示屏在體育廣場(chǎng)中的應(yīng)用將出現(xiàn)快速增長(zhǎng)。 [1] 2020 年奧運(yùn)會(huì)的召開(kāi)將會(huì)直接推動(dòng)體育場(chǎng)用屏幕數(shù)量的快速增加，同時(shí)，由于奧運(yùn)會(huì)用屏對(duì) LED 顯示屏的質(zhì)量要求也較高，因此，高端屏幕的使用比例也將會(huì)增加，數(shù)量和質(zhì)量的提高帶動(dòng) LED 顯示屏市場(chǎng)的增長(zhǎng)。 奧運(yùn)會(huì)和世博會(huì)等重大活動(dòng)的召開(kāi)必然會(huì)伴隨著很多大型活動(dòng)，政府、新聞媒體和各種組織都可能會(huì)在奧運(yùn)會(huì)和世博會(huì)之間舉辦各種相關(guān)活動(dòng)，某些活動(dòng)可能需要大屏 LED，這些需求直接帶動(dòng)顯示屏市場(chǎng)。目前，本土 LED 顯示屏生產(chǎn)企業(yè)除供應(yīng)國(guó)內(nèi)需求外，還不斷把產(chǎn)品出口到國(guó)外市場(chǎng)。隨著國(guó)際 LED顯示屏生產(chǎn)大廠不斷把生產(chǎn)基地轉(zhuǎn)移至國(guó)內(nèi)， 加之國(guó)內(nèi)眾多的 LED 顯示屏本
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