dianzizhong.rar_keil追逐灯

#include <reg51.h> #define uchar unsigned char void count(); void scan_screen(); void scan_key(); void add(); sbit k0=P3^2; sbit k1=P3^3; bit F_key0,F_spark,F_key1; uchar table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40,0x00}; //段码:0～9、- uchar screen[]={0,0,10,0,0,10,0,0}; uchar a,i,n,temp,j=0,h=0; int flag; void int_0()interrupt 0//INT0 { EX0=0; } void int_2()interrupt 2//INT1 { EX1=0; } void int_3()interrupt 3//T1 { TH1=0x00; TL1=0x00; if(EX0==0) { if(k0==1) { F_key0=1; j=j+1; if(j==3||j==6) j=j+1; if(j>8) { j=0; F_key0=0; } IE0=0; EX0=1; } } if(EX1==0) { if(k1==1) { if(F_key0==1) F_key1=1; IE1=0; EX1=1; } } } void int_1()interrupt 1//T0 { TH0=0xf6; TL0=0x3c; if(flag==400) { flag=0; count(); } if(h==100) { F_spark=~F_spark; h=0; } scan_screen(); add(); flag++; h++; } void scan_screen()//数码管动态显示 { P1=0x00; temp=screen[i]; if((F_key0==1)&&(i==(j-1))) { if(F_spark==0) P2=table[temp]; else P2=0x00; } else P2=table[temp]; P1=a; if(i==7) { i=0; a=0x01; } else { i++; a=a<<1; } } void add()//k1键加功能 { if(F_key1==1) { switch(j) { case 1: if(screen[1]>3) { screen[0]++; if(screen[0]>1) screen[0]=0; } if(screen[1]<4) { screen[0]++; if(screen[0]>2) screen[0]=0; } break; case 2: if(screen[0]<2) { screen[1]++; if(screen[1]>9) screen[1]=0; } if(screen[0]==2) { screen[1]++; if(screen[1]>3) screen[1]=0; } break; case 4: screen[3]++; if(screen[3]>5) screen[3]=0; break; case 5: screen[4]++; if(screen[4]>9) screen[4]=0; break; case 7: screen[6]++; if(screen[6]>5) screen[6]=0; break; case 8: screen[7]++; if(screen[7]>9) screen[7]=0; } F_key1=0; } } void count()//时间计数 { i=i-1; switch(i) { case 6: if(screen[i]==5&&screen[i+1]==9) { screen[i]=0; screen[i+1]=0; i=i-3; } else { if(screen[i+1]<9) screen[i+1]++; else { screen[i]++; screen[i+1]=0; } break; } case 3: if(screen[i]==5&&screen[i+1]==9) { screen[i]=0; screen[i+1]=0; i=i-3; } else { if(screen[i+1]<9) screen[i+1]++; else { screen[i]++; screen[i+1]=0; } break; } case 0: if(screen[i]==2&&screen[i+1]==3) { screen[i]=0; screen[i+1]=0; } else { if(screen[i]==2) screen[i+1]++; else { if(screen[i+1]<9) screen[i+1]++; else { screen[i]++; screen[i+1]=0; } } } } i=7; } void main() { EA=1; TMOD=0x11; ET0=1;//T0初始化 TR0=1; TH0=0xf6; TL0=0x3c; ET1=1;//T1初始化 TR1=1; TH1=0x00; TL1=0x00; IT0=1;//INT0初始化 EX0=1; IT1=1;//INT1初始化 EX1=1; P2=0x00; P1=0x00; a=0x01; i=0; flag=1; F_spark=0; F_key0=0; F_key1=0; while(1); }