摘要摘要纵观单片机的发展和应用，51单片机越来越无法满足用户的需求，ARM高速32位单片机的出现，缔造了嵌入式系统的新纪元.嵌入式系统是指以应用为中心，以计算机技术为基础，软件，硬件可裁减，适应应用系统对功能、可靠性、成本、体积、和功耗严格要求的专用计算机系统。嵌入式系统已广泛地渗透到科学研究、工程设计、军事等各种领域、甚至商业、文化、艺术、及人们日常生活的方方面面。随着国内外各种嵌入式产品的进一步开发和推广，嵌入式技术的重要性日益凸显，使得我们不得不将注意力转移到它身上。ARM的应用已遍及工业控制、消费类电子产品、通信系统、网络系统、无线系统等各类产品市场。此设计采用了ARM7微处理器LPC2103作为核心处理器。本文介绍了一个智能交通灯系统的设计。该智能交通灯控制系统可以实现的功能有：对某人行马路的交通路口进行控制和对红绿灯的闪亮控制；各路口有固定的工作周期。人行过马路交通灯控制系统不仅可以缓解交通拥堵，还能阻止一些交通事故的发生。它采用LPC2103来实现对红绿灯的控制。其中通过设置LPC2103的GPIO功能用定时器来实现LED灯的亮灭与闪亮。关键词：ARM7LPC2103LED灯IAbstractAbstractThroughoutthedevelopmentandapplicationofSCM,51SCMincreasinglyunabletosatisfythedemandofusers,ARMspeed32bitMCUembeddedsystems,createstheneweraofembeddedsystem.Refertotheapplicationforthecentertocomputertechnologyasthefoundation,software,hardware,canadapttofunction,applicationsystemreliability,cost,volume,andthepowerofthestrictspecializedcomputersystem.Theembeddedsystemhasbeenwidelypermeatesscientificresearchandengineeringdesign,militaryandotherfields,orevencommercial,culture,art,andallaspectsofPeople'sDailylife.Withthefurtherdevelopmentofembeddedproducts,andtheimportanceoftheembeddedtechnologyallowsustoincreasinglyprominent,divertattentiontoit.TheARMoftheapplicationinindustrialcontrol,consumerelectronics,communicationsystem,networksystem,wirelesssystemsandotherkindsofproductmarket.ThisdesignusestheLPC2103ARM7microprocessorcoreprocessors.Thisarticledescribesanintelligenttrafficlightsystem.Theintelligenttrafficlightcontrolsystemfunctionscanbeachieved:theroadtripagainstapersontocontrolthetrafficjunctionsandtrafficlightstoflashcontrol;theintersectionwithafixeddutycycle.Pedestriancrossingtrafficlightcontrolsystemcannotonlyeasetrafficcongestion,butalsopreventanumberoftrafficaccidents.ItusesLPC2103torealizethecontroloftrafficlights.LPC2103'sGPIObysettingthemwithatimerfunctiontoachievebrightLEDlightsoffandshine.Keywords：ARM7LPC2103LEDlightsII目录目录摘要......................................................................IAbstract.................................................................II目录....................................................................III1引言....................................................................11.1背景.................................................................11.2现状问题.............................................................22工作硬件原理............................................................32.1LPC2103简介.........................................................32.1.1概述.............................................................32.1.2管脚信息.........................................................32.2ARM2103底板原理图...................................................42.2.1电源电路.........................................................42.2.2时钟电路.........................................................42.2.3JTAG接口电路.........................................
