ƼѧԺҵƣģ
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˲ţѡʤ֪ʶ֮ĻƵΪȷֱ۵жϳһߣҪһ豸ΪԱӦö
һӦ÷dz㷺豸ڸ־УѸ١۵طֱȻ÷Ȩѡ֣ǾӻǵӽĿ,ָٰܻ,õҪþֵȷ˺УIJƽΪȷֱ۵жϳһߣƵͨʾƹ⡢ȶֶָʾһߡΪʹֲƽֻпӲƷĸȷĹƽԡ
ڵֻɼܡɿع衢ܵɣָͨܵʾϳѡֺ롣ڴʹõƬ(MCS-51)ּɵ·¹ܣѡֺʾǰļʱѡֵ÷ʾȹܡ
1.1 о״
ҹгѸͷչ֮صĺӦзؽΪҵҵעĽ㡣գǺһҵǷȽԣǷ߱гǷܲھߵҪָݡ˽ļз豸ӦüƶҵƷгʮֹؼĿǰгܸ࣬죬۸ҲܴôѡһʺϵͷdzҪ
һΪ͵ĿǰĹһ㶼ֵӼɵ·ɣַͬΪǼǷǷǷܼһһťɣѡûмǷֵʾǷһʾԼѡֵļǷʾȹɣмǷֵȹܡѧУҵλеļַΪߵߵߵר
õ߰ťɡߵõԺͶӰǣջԾһʹڵ̨ȴ͵ĻߵҲ͵ٺͶӰרзʮıա
ΪһֵӲƷѹ㷺Ӧڸ֪ʶϣĿǰʹõкܶȱ㣬еĵ·ϸӲ,ɿԵͣʵѣеһЩרõļɿ ,רüɿĹֺѡƵİ·Ԫͨ ,ڹŵ,ܺõؽѺڹ⡣ڹѾʼձӦá
1.2 ѡĿ
֪ʶУرĿʱУΪ֪һһλѡȴ⣬ҪһϵͳУӾǺжϳȴ⡣ʹԽʹʱ룬Ҳɷֱȴ⣿ͨо֤֣õƬƵ봫ͳȣȣ·ӼΪܵԪͨڵƬڲڶܿɿڴͳܹ⡣ԱоһʵõĹƣдԡ
ͨƣ51ϵеƬԭ˽ɲ֣ϸԭͱ̷˽ⵥƬϵͳƻ߶˼ͱ̵˼άͬʱͨƣԼĶѧ֪ʶƬۺʵĽϣ˽Ԫ·֮ĹϵӰ죬Ӷȷơ㶨ʱĸԪ·һ˽ԵƬΪĿϵͳƷ̷
1.3 оҪ
ľ幦ܣϸҪ£
1ͬʱ8ѡֻ8ӱֱ8ťS1S8ʾ