AT89C51单片机开发板程序

AT89C51单片机开发板程序1个LED数码管静态显示（0-9）includereg52.h#defineucharunsignedchar#defineuintunsignedintuchari;ucharcodea[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};voiddelay(uintz);voidmain(){while(1){for(i=0;i10;i++){P2=0xfe;P0=a[i];delay(1000);}}}voiddelay(uintz){uintx,y;for(x=z;x0;x--)for(y=122;y0;y--);}LED数码管显示（0-99）#includereg52.hunsignedcharcount,num;unsignedcharcodetable[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};voidmain(){P2=0xfe;IE=0x82;TMOD=0x01;TCON=0x30;while(1);}voidTOINT()interrupt1{TH0=0xd8;TL0=0xf0;if(P2&1)P1=table[num/10];elseP1=table[num%10];P2^=3;if(++count100)return;count=0;if(++num99)num=0;}定时控制一只闪亮的灯#includereg51.h#defineucharunsignedchar#defineuintunsignedintuintn;sbitled=P0^0;voidmain(){TMOD&=0xf1;TMOD|=0x01;TH0=(65536-10000)/256;TL0=(65536-10000)%256;EA=1;ET0=1;TR0=1;while(1){}}voidtimer0()interrupt1{TH0=(65536-10000)/256;TL0=(65536-10000)%256;n++;if(n==100){n=0;led=~led;}}用独立键盘显示LED数码管（1-4）#includereg52.h#defineucharunsignedchar#defineuintunsignedintucharcodea[]={0xc0,0xf9,0xa4,0xb0,0x99,0xff};voiddelay(uintz);voidmain(){ucharb,c;c=5;while(1){P0|=0x0f;b=P0;b&=0x0f;if(b!=0x0f){delay(20);P0|=0x0f;b=P0;b&=0x0f;if(b!=0x0f){switch(b){case0x0e:c=1;break;case0x0d:c=2;break;case0x0b:c=3;break;case0x07:c=4;break;default:c=0;}}}P1&=0xfe;P2=a[c];}}voiddelay(uintz){uintx,y;for(x=z;x0;x--)for(y=122;y0;y--);}用矩阵键盘显示LED数码管（0-9，A-F）#includereg52.h#defineuintunsignedint#defineucharunsignedcharucharcodea[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e,0xff};voiddelay(uintz);sbithang1=P0^3;sbithang2=P0^2;sbithang3=P0^1;sbithang4=P0^0;voidmain(){ucharb,c;c=16;while(1){hang1=0;hang2=1;hang3=1;hang4=1;P0|=0xf0;b=P0;b&=0xf0;if(b!=0xf0){delay(10);P0|=0xf0;b=P0;b&=0xf0;if(b!=0xf0){switch(b){case0xe0:c=0;break;case0xd0:c=1;break;case0xb0:c=2;break;case0x70:c=3;break;default:c=16;}}}P3&=0xf0;P2=a[c];hang1=1;hang2=0;hang3=1;hang4=1;P0|=0xf0;b=P0;b&=0xf0;if(b!=0xf0){delay(10);P0|=0xf0;b=P0;b&=0xf0;if(b!=0xf0){switch(b){case0xe0:c=4;break;case0xd0:c=5;break;case0xb0:c=6;break;case0x70:c=7;break;default:c=16;}}}P3&=0xf0;P2=a[c];hang1=1;hang2=1;hang3=0;hang4=1;P0|=0xf0;b=P0;b&=0xf0;if(b!=0xf0){delay(10);P0|=0xf0;b=P0;b&=0xf0;if(b!=0xf0){switch(b){case0xe0:c=8;break;case0xd0:c=9;break;case0xb0:c=10;break;case0x70:c=11;break;default:c=16;}}}P3&=0xf0;P2=a[c];hang1=1;hang2=1;hang3=1;hang4=0;P0|=0xf0;b=P0;b&=0xf0;if(b!=0xf0){delay(10);P0|=0xf0;b=P0;b&=0xf0;if(b!=0xf0){switch(b){case0xe0:c=12;break;case0xd0:c=13;break;case0xb0:c=14;break;case0x70:c=15;break;default:c=16;}}}P3&=0xf0;P2=a[c];}}voiddelay(uintz){uintx,y;for(x=z;x0;x--)for(y=122;y0;y--);}一只闪亮的灯#includereg52.h#defineucharunsignedchar#defineuintunsignedintsbitled=P2^0;voiddelay(uintz);voidmain(){led=0;delay(1000);led=1;delay(1000);}voiddelay(uintz){uintx;uinty;for(x=z;x0;x--)for(y=122;y0;y--);}中断控制流水灯(从右向左)#includereg52.h#includeintrins.h#defineucharunsignedchar#defineuintunsignedintucharled,temp;voiddelay(uintz);voidmain(){EA=1;EX1=1;temp=0x7f;while(1){P2=temp;temp=_cror_(temp,1);delay(1000);}}voiddelay(uintz){uintx,y;for(x=z;x0;x--)for(y=122;y0;y--);}voidextern1()interrupt2{P2=0x00;delay(2000);P2=0xff;delay(2000);}中断控制流水灯(从左向右)#includereg52.h#includeintrins.h#defineucharunsignedchar#defineuintunsignedintucharled,temp;voiddelay(uintz);voidmain(){EA=1;EX1=1;temp=0xfe;while(1){P2=temp;temp=_crol_(temp,1);delay(1000);}}voiddelay(uintz){uintx,y;for(x=z;x0;x--)for(y=122;y0;y--);}voidextern1()interrupt2{P2=0x00;delay(2000);P2=0xff;delay(2000);}1位密码锁#includereg52.h#defineucharunsignedchar#defineuintunsignedint#definemima3#defineduanmaP1sbitweima=P3^0;sbitredled=P0^5;sbitgreenled=P0^6;ucharkey=0xff;voidscankey();voiddelay(uintz);voidmain(){weima=0;while(1){duanma=0xbf;redled=1;greenled=1;scankey();if(key==mima){duanma=0x8c;greenled=0;delay(3000);key=0xff;}if(key!=0xff){duanma=0x86;redled=0;delay(3000);key=0xff;}else{duanma=0xbf;redled=1;greenled=1;}}}voidscankey(){ucharkeyinput;P0|=0x0f;keyinput=P0;keyinput&=0x0f;if(keyinput!=0x0f){delay(10);P0|=0x0f;keyinput=P0;keyinput&=0x0f;if(keyinput!=0x0f){switch(keyinput){case0x0e:key=0;break;case0x0d:key=1;break;case0x0b:key=2;break;case0x07:key=3;break;default:key=0xff;}}}}voiddelay(uintz){uintx,y;for(x=z;x0;x--)for(y=122;y0;y--);}电子钟#includereg52.h#defineucharunsignedchar#defineuintunsignedintucharcodeduan[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};ucharcodewei[]={0xfe,0xfd,0xfb,0xf7};uchartt,i,sec,min;ucharxianshi[4];voiddelay(uintz);voidinit();voidmain(){init();while(1){if(tt=20){tt=0;sec++;if(sec==60){sec=0;min++;if(min==60){min=0;}}}xianshi[0]=duan[sec%10];xianshi[1]=duan[sec/10];xianshi[2]=duan[min%10];xianshi[3]=duan[min/10];for(i=0;i4;i++){P2=xianshi[i];P0=wei[i];delay(5);}}}voidinit(){TMOD&=0XF1;TMOD|=0X01;TH0=(65536-50000)/256;TL0=(65536-50000)%256;EA=1;ET0=1;TR0=1;}voidtimer0()interrupt1{TH0=(65536-50000)/256;TL0=(65536-50000)%256;tt++;}voiddelay(uintz){uintx,y;for(x=z;x0;x--)for(y=122;y0;y--);}交通灯#includereg52