基于单片机的八路智能抢答器的设计_毕业设计 - 百度文库 ر

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working principle of the system based on the study of the fully, and choose appropriate component model and parameter, garnish with protel drawing software draw circuit principle diagram, according to write software interface circuit program.

Keyword: vies to answer first; microcomputer; AT89C51;module; button

Vҳ ҳ

1

Ὰ漤ңѡ˲ţѡʤ֪ʶ֮ĻƵΪ׼ȷֱ۵жϳһߣҪһ豸ΪԱӦö

һӦ÷dz㷺豸ڸ־𳡺УѸ١͹۵طֱȻ÷Ȩѡ֣ǾӻǵӽĿ,ָٰܻ,õҪþֵȷ˺УIJƽΪ׼ȷֱ۵жϳһߣƵͨʾƹ⡢ȶֶָʾһߡΪʹֲƽֻпӲƷĸ׼ȷĹƽԡ

ڵֻɼܡɿع衢ܵɣָͨܵʾϳѡֺ롣ڴʹõƬ(MCS-51)ּɵ·¹ܣѡֺʾǰļʱѡֵ÷ʾȹܡ

1.1 о״

ҹгѸͷչ֮صĺӦзؽΪҵҵעĽ㡣գǺһҵǷȽԣǷ߱гǷܲھߵҪָݡ˽ļз򡢹豸ӦüƶҵƷгʮֹؼĿǰг෱ܸ࣬죬۸ҲܴôѡһʺϵͷdzҪ

һΪ͵ĿǰĹһ㶼ֵӼɵ·ɣַͬΪǼǷǷǷܼ򵥣һһťɣѡûмǷֵʾǷһʾԼѡֵļǷʾȹɣмǷֵȹܡѧУҵλеļ򵥵ַΪߵߵߵר

õ߰ťɡߵõԺͶӰǣ԰ջԾһʹڵ̨ȴ͵ĻߵҲ͵ٺͶӰרз׵ʮıա

ΪһֵӲƷѹ㷺Ӧڸ֪ʶϣĿǰʹõкܶȱ㣬еĵ·ϸӲ,ɿԵͣʵѣеһЩרõļɿ ,רüɿĹֺѡƵİ·Ԫͨ ,ڹŵ,ܺõؽѺڹ⡣ڹѾʼձӦá

1.2 ѡĿ

֪ʶУرĿʱУΪ֪һһλѡȴ⣬ҪһϵͳУӾǺжϳȴ⡣ʹԽʹʱ΢룬Ҳɷֱȴ⣿ͨо֤֣õƬƵ봫ͳȣȣ·Ӽ򵥣ΪܵԪͨڵƬڲڶܿɿڴͳܹ⡣ԱоһʵõĹƣдԡ

ͨƣ51ϵеƬԭ˽򵥶๦ɲ֣ϸԭͱ̷˽ⵥƬϵͳƻ߶˼ͱ̵߼˼άͬʱͨƣԼĶѧ֪ʶƬۺʵĽϣ˽๦Ԫ·֮Ĺϵ໥Ӱ죬Ӷȷơ㶨ʱĸԪ·һ˽ԵƬΪĿϵͳƷ̷

1.3 оҪ

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