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ID:9936159
大小:200.00 KB
页数:28页
时间:2018-05-16
《毕业设计(论文)-基于单片机的八路抢答器设计》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、廊坊师范学院本科生毕业论文摘要很多人都抢答器作为一种工具,已广泛应用于各种智力和知识竞赛场合。但抢答器的使用频率较低,且有的要么制作复杂,要么可靠性低。作为一个单位,如果专门购一台抢答器虽然在经济上可以承受,但每年使用的次数极少,往往因长期存放使(电子器件的)抢答器损坏,再购置的麻烦和及时性就会影响活动的开展,因此设计了本抢答器。本设计是以八路抢答为基本理念。考虑到依需设定限时回答的功能,利用AT89C51单片机及外围接口实现的抢答系统,利用单片机的定时器/计数器定时和记数的原理,将软、硬件有机地结合起来,使得系统能够正确地进行计时,同时使数码管能够正确地显示时间。关
2、键词:单片机;抢答器;AT89C5125AbstractManypeoplearescare-answeringdeviceasatool,hasbeenwidelyappliedinallkindsofintelligenceandknowledgecompetitionsituation.Butviestoimplementusefrequencyisquitelow,andsomeeithermakecomplicatedorlowreliability.Asaunit,ifspecializedpurchasedaviestoimplementwherease
3、conomicallymayinherit,buteveryyearthenumberoflittleuseforlong-termstorage,oftenmake(electronics)viesisdamaged,againthepurchaseoftroubleandtimelinesswillaffectactivities,sothiscontestwasdesigneddevice.Thisdesignis8viesforbasicideas.Consideringaccordingtoneedtosetlimittoanswerfunction,usi
4、ngAT89C51andperipheryinterfaceimplementationofscare-answeringsystem,ofthemicrocontrollertimer/countertimingandnumerationprinciple,softwareandhardwareorganically,andmakesthesystemcancorrectlytothetime,atthesametimemakingdigitaltubecanproperlyshowsthetime.Keywords:Microcontroller;Scare-an
5、sweringdevice;AT89C5125目录摘要.......................................................................Ⅰ英文摘要..................................................................Ⅱ目录......................................................................Ⅲ绪论..........................................
6、............................1第1章系统设计内容......................................................11.1系统设计根据...........................................................11.2设计任务和要求.........................................................11.3设计目的..................................................
7、.............2第2章硬件设计........................................................22.1单片机控制原理.........................................................22.2抢答器的原理...........................................................32.2.1原理及电路总框图..................................................
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