单片机60秒倒计时程序.doc

60 秒倒计时程序#include#define uchar unsigned char #define uint unsigned intuchar temp,bai,shi,ge,num;uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;void delay(uint);void main()temp=60;num=0;P2=0x00;TMOD=0x01;TH0=(65536-45872)/256;TL0=(65536-45872)%256;EA=1;ET0=1;TR0=1;while(1)shi=temp/10;ge=temp%10;P0=tableshi;P2=0x02;delay(5);P0=tablege;P2=0x01;delay(5);void T0_time()interrupt 1TH0=(65536-45872)/256;TL0=(65536-45872)%256;num+;if(num=40)num=0;temp-;if(temp=0)temp=60;void delay(uint z)uint x,y;for(x=z;x0;x-)for(y=110;y0;y-);