51单片机交通灯程序及PROTEUS仿真集合.doc

51单片机外接8255A做成的交通灯程序及PROTEUS仿真结果（附对应C语言程序）2010-04-21 22:01 CONTROL EQU 7FFFH PORTA EQU 7FFCH ORG 0START: MOV DPTR,#7FFFH MOV A,#80H MOVX DPTR,A MOV DPTR,#7FFCH MOV A,#0FFH MOVX DPTR,ALOOP: MOV A,#21H MOV DPTR,#7FFCH MOVX DPTR,A ;东西红，南北绿 CALL DELAYLONG MOV A,#11H MOV DPTR,#7FFCH MOVX DPTR,A ;三次闪烁 CALL DELAYSHORT MOV A,#01H MOV DPTR,#7FFCH MOVX DPTR,A CALL DELAYSHORT MOV A,#11H MOV DPTR,#7FFCH MOVX DPTR,A CALL DELAYSHORT MOV A,#01H MOV DPTR,#7FFCH MOVX DPTR,A CALL DELAYSHORT MOV A,#11H MOV DPTR,#7FFCH MOVX DPTR,A CALL DELAYSHORT MOV A,#01H MOV DPTR,#7FFCH MOVX DPTR,A CALL DELAYSHORT MOV A,#0CH MOV DPTR,#7FFCH MOVX DPTR,A CALL DELAYLONG MOV A,#0AH MOV DPTR,#7FFCH MOVX DPTR,A CALL DELAYSHORT MOV A,#08H MOV DPTR,#7FFCH MOVX DPTR,A CALL DELAYSHORT MOV A,#0AH MOV DPTR,#7FFCH MOVX DPTR,A CALL DELAYSHORT MOV A,#08H MOV DPTR,#7FFCH MOVX DPTR,A CALL DELAYSHORT MOV A,#0AH MOV DPTR,#7FFCH MOVX DPTR,A CALL DELAYSHORT MOV A,#08H MOV DPTR,#7FFCH MOVX DPTR,A CALL DELAYSHORT AJMP LOOPDELAYLONG: MOV R7,#40L1: MOV R6,#200L2: MOV R5,#250 DJNZ R5,$ DJNZ R6,L2 DJNZ R7,L1 RETDELAYSHORT: MOV R4,#200L3: MOV R3,#250 DJNZ R3,$ DJNZ R4,L3 RET ENDC语言程序：# include# define PORTA XBYTE0X7FFC# define CONTROL XBYTE0X7FFFvoid DELAYLONG(void);void DELAYSHORT(void);void main(void)CONTROL=0x80;PORTA=0XFF;while(1) PORTA=0X21; DELAYLONG(); PORTA=0X11; DELAYSHORT(); PORTA=0X01; DELAYSHORT(); PORTA=0X11; DELAYSHORT(); PORTA=0X01; DELAYSHORT(); PORTA=0X11; DELAYSHORT(); PORTA=0X01; DELAYSHORT(); PORTA=0X0C; DELAYLONG(); PORTA=0X0A; DELAYSHORT(); PORTA=0X08; DELAYSHORT(); PORTA=0X0A; DELAYSHORT(); PORTA=0X08; DELAYSHORT(); PORTA=0X0A; DELAYSHORT(); PORTA=0X08; DELAYSHORT(); void DELAYLONG(void)unsigned i,j,k;for(i=0;i20;i+) for(j=0;j40;j+) for(k=0;k2500;k+);void DELAYSHORT(void)unsigned i;for(i=0;i30000;i+); =# includeunsigned char i=0,j=0;unsigned char count=0,m,n;unsigned char temp;unsigned char code p3=0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80;unsigned char code p1=0,1,2,3,4,5,6,7,8,9;unsigned char code temp14=6,9,18,27, 3,3,12,21, 27,6,9,18, 21,3,3,12, 18,27,6,9, 12,21,3,3, 9,18,27,6, 3,12,21,3;void main()EA=1;TH0=(65536-2500)/256;TL0=(65536-2500)%256;P2=0x02;TMOD=0X01;TR0=1;ET0=1;while(1)if(j%2=0)P3=p3j;P1=p1(temp1mn-temp)/10;elseP3=p3j;P1=p1(temp1mn-temp)%10;switch(count)case 0:P2=0x01;m=0;temp=0;break; / 1号绿灯亮case 30:P2=0x03;m=1;temp=0;break;/ 1号黄灯亮case 45:P2=0x04;m=2;temp=0;break;/ 2号绿灯亮case 75:P2=0x0c;m=3;temp=0;break; / 2号黄灯亮case 90:P2=0x10;m=4;temp=0;break;/ 3号绿灯亮 case 120:P2=0x30;m=5;temp=0;break; / 3号黄灯亮case 135:P2=0x40;m=6;temp=0;break; / 4号绿灯亮case 165:P2=0xc0;m=7;temp=0; / 4号黄灯亮 void time0() interrupt 1j=j+1;if(j%