仿真圖：
源程序： #include <reg51.h> #define uchar unsigned char #define uint unsigned int uchar data buf[4]; uchar data sec_dx=27; uchar data sec_nb=17; uchar data set_timedx=27; uchar data set_timenb=17; int n; uchar data countt0,countt1; sbit k4=P3^7; sbit k1=P3^5; sbit k2=P3^6; sbit k3=P3^4; sbit k5=P3^1; sbit k6=P1^5; sbit Red_nb=P2^6; sbit Yellow_nb=P2^5; sbit Green_nb=P2^4; sbit Red_dx=P2^3; sbit Yellow_dx=P2^2; sbit Green_dx=P2^1; bit set=0; bit dx_nb=0; bit shanruo=0; bit yejian=0; uchar code table[11]={ 0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f, 0x00 }; void delay(int ms); void key(); void key_to1(); void key_to2(); void key_to3(); void display(); void logo(); void Buzzer(); void main() { TMOD=0X11; TH1=0X3C; TL1=0XB0; TH0=0X3C; TL0=0XB0; EA=1; ET0=1; ET1=1; TR0=1; TR1=0; logo(); P2=0Xc3; sec_nb=sec_dx+3; while(1) { key(); display(); } } void key(void) { if(k1!=1) { display(); if(k1!=1) { TR0=0; shanruo=0; P2=0x00; TR1=0; if(set==0) set_timedx++; else set_timenb++; if(set_timenb==100) set_timenb=1; if( set_timedx==100) set_timedx=1; sec_nb=set_timenb; sec_dx=set_timedx; do { display(); } while(k1!=1); } } if(k2!=1) { display(); if(k2!=1) { TR0=0; shanruo=0; P2=0x00; TR1=0; if(set==0) set_timedx--; else set_timenb--; if(set_timenb==0) set_timenb=99; if( set_timedx==0 ) set_timedx=99; sec_nb=set_timenb; sec_dx=set_timedx; do { display(); } while(k2!=1); } } if(k3!=1) { display(); if(k3!=1) { TR0=1; sec_nb=set_timenb; sec_dx=set_timedx; TR1=0; if(set==0) { P2=0X00; Green_dx=1; Red_nb=1; sec_nb=sec_dx+3; } else { P2=0x00; Green_nb=1; Red_dx=1; sec_dx=sec_nb+3; } } } if(k4!=1) { display(); if(k4!=1) { TR0=0; set=!set; TR1=0; dx_nb=set; do { display(); } while(k4!=1); } } if(k5!=1) { display(); if(k5!=1) { TR0=0; P2=0x00; Red_dx=1; Red_nb=1; TR1=0; sec_dx=00; sec_nb=00; do { display(); } while(k5!=1); } } if(k6!=1) { display(); if(k6!=1) { TR0=0; P2=0x00; TR1=1; sec_dx=00; sec_nb=00; do { display(); } while(k6!=1); } } } void display(void) { buf[1]=sec_nb/10; buf[2]=sec_nb%10; buf[3]=sec_dx/10; buf[0]=sec_dx%10; P1=0xff; P0=0x00; P1=0xfe; P0=table[buf[1]]; delay(1); P1=0xff; P0=0x00; P1=0xfd; P0=table[buf[2]]; delay(1); P1=0xff; P0=0x00; P1=0Xfb; P0=table[buf[3]]; delay(1); P1=0xff; P0=0x00; P1=0Xf7; P0=table[buf[0]]; delay(1); } void time0(void) interrupt 1 using 1 { TH0=0X3C; TL0=0XB0; TR0=1; countt0++; if(countt0==10) { if((sec_nb<=3)&&(dx_nb==0)&&(shanruo==1)) { Green_dx=0; Yellow_dx=0; } if((sec_dx<=3)&&(dx_nb==1)&&(shanruo==1)) { Green_nb=0; Yellow_nb=0; } } if(countt0==20) { countt0=0; sec_dx--; sec_nb--; if((sec_nb<=3)&&(dx_nb==0)&&(shanruo==1)) { Green_dx=0; Yellow_dx=1; } if((sec_dx<=3)&&(dx_nb==1)&&(shanruo==1)) { Green_nb=0; Yellow_nb=1; } if(sec_dx==0&&sec_nb==3) { sec_dx=3; shanruo=1; } if(sec_nb==0&&sec_dx==3) { sec_nb=3; shanruo=1; } if(dx_nb==0&&sec_nb==0) { P2=0x00; Green_nb=1; Red_dx=1; dx_nb=!dx_nb; shanruo=0; sec_nb=set_timenb; sec_dx=set_timenb+3; } if(dx_nb==1&&sec_dx==0) { P2=0X00; Green_dx=1; Red_nb=1; dx_nb=!dx_nb; shanruo=0; sec_dx=set_timedx; sec_nb=set_timedx+3; } } } void time1(void) interrupt 3 { TH1=0X3C; TL1=0XB0; countt1++; if(countt1==10) { Yellow_nb=0; Yellow_dx=0; } if(countt1==20) { countt1=0; Yellow_nb=1; Yellow_dx=1; } } void logo() { for(n=0;n<50;n++) { P0=0x40; P1=0xfe; delay(1); P1=0xfd; delay(1); P1=0Xfb; delay(1); P1=0Xf7; delay(1); P1 = 0xff; } } void delay(int ms) { uint j,k; for(j=0;j<ms;j++) for(k=0;k<124;k++); }
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