111人行过马路交通灯论文

摘要I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AbstractIIAbstractThroughoutthedevelopmentandapplicationofSCM,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：ARM7LPC2103LEDlights目录III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....................................................42.2.4LPC2103电路原理图和最小系统实物图...............................52.2.5人行过马路交通灯控制系统电路原理图..............................63工程建立和调试..........................................................73.1ADS1.2集成开发环境的组成...........................................73.1.1CodeWarriorIDE简介.............................................73.2工程的编辑..........................................................93.2.1建立工程..........................................................93.2.2建立文件.......................................................103.2.3添加文件到工程.................................................103.2.4编辑连接工程...................................................113.3工程的调试.........................................................124LPC2103基础知识详解...................................................134.1引脚链接模块.......................................................134.1.1概述...........................................................134.1.2寄存器描述.....................................................134.2GPIO...............................................................154.2.1概述...........................................................15目录IV4.2.2寄存器描述.....................................................164.3向量中断控制器.....................................................174.3.1概述...........................................................174.3.2寄存器描述.....................................................174.3.3向量IRQ中断...................................................184.4定时器0和定时器1..................................................194.4.1概述...........................................................194.4.2特性...........................................................194.4.3引脚描述.......................................................204.4.4寄存器描述.....................................................204.4.5定时器中断.....................................................235带闪烁人行过马路交通灯控制系统的设计与实现.............................265.1带闪烁人行过马路交通灯控制的基本规则...............................265.2人行过马路交通灯点亮与熄灭的原理...................................285.3ARM定时器控制的原理...............................................285.4ARM中断控制的原理.................................................295.5人行过马路交通灯控制系统的硬件设计......