题目基于51单片机的LED显示屏摘要:由于科技的快速发展，LED显示屏已经是在大街上随处可见的应用了，它的应用已经普及到社会中的方方面面。LED点阵具有无限级联的特点，以一个个小的显示屏可以拼接出一块大的显示屏，在许多场合都可以见到它的身影，不仅因为LED显示屏可使呈现的信息更为直观，更为重要的是这种显示方式非常方便且具有较高的性价比，能够给人以视觉上的享受，更能给人一种美的享受。LED显示屏是一个犹发光二极管按照一定的形式排列封装形成的，可显示广告，图文信息等。本设计是基于STC89C51单片机的16*16点阵显示屏，该LED显示屏能实现分辨率16*16的汉字显示，简单的显示图像。该设计包含硬件设计、然健设计以及系统调试等，中需要简单的将硬件模块和软件模块进行组合即可实现显示功能。本文设计的基于51单片机的LED显示屏可实现预期功能，具有功耗低、操作简单、精度高等诸多优势。关键词：点阵显示屏级联51单片机Abstract:Duetotherapiddevelopmentoftechnology,LEDdisplayscreenhasbeenwidelyusedinthestreets.,anditsapplicationhasbeenpopularizedineveryaspectofsociety.LEDdotmatrixhasthecharacteristicsofinfinitecascade,withasmalldisplaycanpiecetogetheralargedisplay,onmanyoccasionscanseethefigureofit,isnotonlytheapplicationofittomakesomethingappearmorebeautiful,moreimportantisthatitsapplicationisconvenient,costislow,inadditiontocangiveapersonvisualimpact,morecangiveapersonakindofbeautifulenjoyment.LEDdisplaysarearrangedinamatrixbyseverallight-emittingdiodes,usuallyusedtodisplayadvertising,graphicsandotherinformation.Thisdesignisbasedonthe16*16pointarraydisplayofSTC89C51singlechip.TheLEDdisplaycandisplaytheChinesecharactersof16*16anddisplaytheimagesimply.Thedesignincludeshardware,software,debugging,etc.,whichcanrealizetheexpansionofthedisplayscreenwithsimplecascade,butbecarefulnottoexceedtheloadcapacity.Thedesignofthisdesignissmall,multi-function,convenientandpractical,costsmall,thecircuithasthestructuresimple,theoperationisconvenient,theprecisionishigh,theapplicationiswidelycharacteristic.Keywords:LatticedisplayCascade51singlechipmicrocomputer目录第1章引言........................................................................................................IV1.1选题背景................................................................................................11.2国内研究状况........................................................................................1第2章如何选择硬件..........................................................................................22.1主控芯片的选择....................................................................................22.2显示器件的选择....................................................................................22.3系统总体方案........................................................................................3第3章系统硬件电路设计...................................................................................43.1STC89C51单片机系统设计...................................................................43.1.1STC89C51的概述.......................................................................43.1.2STC89C51的引脚说明...............................................................43.1.3STC89C51单片机的最小系统...................................................73.216*16点阵显示电路设计.....................................................................93.2.1点阵显示屏的概述....................................................................93.2.2点阵显示屏驱动电路.......
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