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1、摘要随着单片机的日益发展，其应用也越來越广泛，通过对“汽车转弯灯单片机控制系统”设计，可以对单片机的知识得到巩固和扩张。本设计是设计一个单片机控制系统。在汽车进行左转弯、右转弯、刹车、合紧急开关、停靠等操作吋，实现对■各种信号指示灯的控制。本设计主要是对旳片机的并行输入/输出口电路的应用，通过I/O口控制发光二极管的亮、灭、闪烁，加上一•些复位电路、按键电路、驱动电路来模拟汽车尾灯的功能。汽车在驾驶时有左转弯、右转弯、刹车、合紧急开关、停靠等操作。在左转弯或右转弯时，通过转弯操作杆应使左转开关或右转开关合上，从而使左头灯、仪表板左转弯灯、左尾灯或右头灯、仪衣板右转弯灯、右尾灯闪烁；合紧急开
2、关时要求前面所述的6个信号灯全部闪烁；汽车刹车时，两个尾灯点亮；如止当转弯吋刹车，则转弯吋原应闪烁的信号灯仍应闪烁。以上闪烁，都是频率为1Hz的低频闪烁；在汽车停靠而停靠开关合上吋，左头灯、右头灯、左尾灯、右尾灯按频率为30Hz的髙频闪烁。通过做实物，编写程序，完成了设计的要求。通过该设计，対单片机的认识有了更进—涉的了解，对单片机的各个口的功能作用了解加深，对Protel的应用更加熟练，对设计系统有了了解，掌握了一些设计方法，受益不少。关键词：单片机，汽车信号转弯灯，电路基础，数字电子技术ABSTRACTAlongwiththedevelopmentofsinglechip,itsapp
3、licationinmoreandmorewidely,throughtotheMautolampsingle-chipmicrocomputercontrolsystem11turningtothesinglechipdesign,cantheknowledgehasbeenconsolidatedandexpansion.Thisdesignisthedesignofasingle-chipmicrocomputercontrolsystem.Inthecarleftturn,turnright,brakes,andemergencyswitch,calloperation,sucha
4、stherealizationtothevarioussignalindicatorlightcontrol.Thisdesignismainlytothechipparallelinput/outputcircuitapplication,throughtheI/Ocontrolledsonthemouth,destroy,flashing,plussomeresetcircuitcircuit,drivecircuit,keystosimulatethefunctionofoutsourcing.Inacardrivingleftturn,turnright,brakes,andeme
5、rgencyswitch,calloperation.In(umleftorrightturn,turnthroughtheoperationshouldmakealeftturnpoleswitchorturnrightswitchclosed,sothatlefttheheadlamp,instrumentpanelturnleftlamp,leftorrighttaillightstheheadlamp,dashboardsturnrightlamp,righttaillightsflashing;Andemergencyswitch,andtherequirementsofthem
6、entionedsixlightsflashingall;Automobilebraking,twotaillightslight;Suchaslegitimateturningthebrakes,isturningtheflashinglightsshouldbeshouldstillflashing.Aboveall,thefrequencyofflashing,is1Hzacfrequencytwinkle;Incardockandparkedclosetheswitchwhentheheadlamp,right,left,theheadkinip,left,andrighttail
7、lightsfor30Hzacfrequencytaillightsinthehighfrequencyblinking.Throughthedophysical,writeprograms,completethedesignrequirements・Throughthedesignofthesinglechip,recognizethefurtherunderstandingofthesinglechip,thefun
