shumaguan.rar_数码管keil编程源程序

#include "reg52.h" sbit a=P1^0; sbit b=P1^1; sbit c=P1^2; sbit d=P1^3; sbit e=P3^7; unsigned char code Tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e}; unsigned char LedBuff[]={0xFF,0xFF,0xff,0xff,0xff,0xff}; unsigned char i = 0; unsigned int cnt = 0; unsigned char flagls=0; void delay_ms (unsigned int ms) { unsigned int i,j,k; for (i=0;i<ms;i++) for (j=0;j<3;j++) for(k=0;k<219;k++); } void main() { unsigned int i = 0; unsigned int aa = 0; unsigned int bb = 0; unsigned int k = 0; unsigned long sec =0; unsigned char h = 0; unsigned int q = 0; unsigned int w = 0; P1=0xff; ET0=1; TR0=1; TMOD=0x01; TH0=0xFC; TL0=0x67; TR0=1; EA=1; while(1) { if(a!=1) { delay_ms(15); if(a!=1) {k++;} } if(k>2)k=0; if(b!=1) { delay_ms(15); if(b!=1) q=1; } if(b!=1) { delay_ms(15); if(b!=1) q=1; } if(c!=1) { delay_ms(15); if(c!=1) w=1; } if(k==1&&q==1){aa++ ; q=0; } if(k==1&&w==1){aa--; w=0;} if(k==2&&q==1){bb++; q=0;} if(k==2&&w==1){bb--; w=0;} if (flagls==1&&h==0) { sec=bb*10+aa; LedBuff[0]=Tab[sec%10]; LedBuff[1]=Tab[sec/10%10]; } if(d!=1) { delay_ms(15); if(d!=1) h=1; } if(flagls==1&&h==1) { flagls=0; sec++; if(sec==60){sec=0;delay_ms(200); for(i=0;i<=2;i++) {e=~e; delay_ms(200);} } LedBuff[0]=Tab[sec%10]; LedBuff[1]=Tab[sec/10%10]; } } } void intl () interrupt 1 { TH0=0xFC; TL0=0x67; cnt++; if(cnt>=1000) { cnt=0; flagls=1; } P0=0XFF; if(i==0) {P2=0XFE;i++;P0=LedBuff[0];} else if (i==1) {P2=0XFD;i=0;P0=LedBuff[1];} }