基于单片机的LED路灯时控光控模拟系统设计.doc

基于单片机的LED路灯时控光控模拟系统设计原理图中的滑动变阻器实际使用光敏电阻。程序如下#include<reg52.h>#defineucharunsignedchar#defineuintunsignedintsbitkey_0=P2^3;sbitkey_1=P2^2;sbitkey_2=P2^1;sbitkey_3=P2^0;sbitwela_0=P2^7;sbitwela_1=P2^6;sbitwela_2=P2^5;sbitwela_3=P2^4;sbitludeng=P1^0;sbitinlamp1=P1^2;sbitinlamp2=P1^4;sbitguangmin=P1^6;ucharcodetable[]={0x3f0x060x5b0x4f0x660x6d0x7d0x070x7f0x6f};unsignedinthourminSTHSTMLHLMf1f0;uintaa;voiddelay(uintu)//延时子程序{uintxy;for(x=u;x>0;x--)for(y=110;y>0;y--);}voiddisplay(ucharhucharm)//动态扫描子程序扫描周期为50ms{ucharhhourlhourhminlmin;hhour=h/10;lhour=h%10;hmin=m/10;lmin=m%10;P0=table[hhour];P2=0x8f;//P0口加上拉电阻才能显示高电平。不然是高阻态。delay(2);P0=table[lhour];P2=0x4f;delay(2);P0=table[hmin];P2=0x2f;delay(2);P0=table[lmin];P2=0x1f;delay(2);}voidmain(){EA=1;TMOD=0x11;TH0=0x4b;TL0=0xfd;TH1=0x4b;TL1=0xfd;TR0=1;TR1=1;ET0=1;ET1=1;EX0=1;EX1=1;IT0=1;IT1=1;PX0=1;PX1=0;hour=12;min=0;STH=19;STM=0;LH=5;LM=0;aa=0;while(1){if(key_0==0){delay(2);if(key_0==0){hour++;}//在检测按键按下时按键需要一个消除//抖动的延时if(hour==24)hour=0;while(key_0!=1)display(hourmin);}if(key_1==0){delay(2);if(key_1==0){min++;}if(min==60)min=0;while(key_1!=1)display(hourmin);}if(hour==STH)//条件符合点亮路灯{if(min==STM)ludeng=0;TR1=0;}if(hour==LH)//条件符合熄灭路灯{if(min==LM)ludeng=1;TR1=1;}display(hourmin);}}voidtime1()interrupt3{TH1=0x3c;TL1=0xb0;f1=guangmin;if(ludeng==1){switch(f1){case1:ludeng=0;break;case0:ludeng=