四位数码管时钟程序.doc

#include #define uint unsigned int#define uchar unsigned charuint n,tt;uchar qian,bai,shi,ge;sbit key1=P32;sbit key2=P33;sbit key3=P34;sbit key4=P35;void delay(uint x)uint i,j;for(i=x;i0;i-)for(j=110;j0;j-);uchar code tab=0xc0,0xf9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90;void init()n=1752;qian=n/1000;bai=(n%1000)/100;shi=(n%1000)%100)/10;ge=(n%1000)%100)%10;void keyscan()if(key4=0)delay(10);if(key4=0)while(!key4);switch(ge)case 0:ge+;break;case 1:ge+;break;case 2:ge+;break;case 3:ge+;break;case 4:ge+;break;case 5:ge+;break;case 6:ge+;break;case 7:ge+;break;case 8:ge+;break;case 9:ge=0;break;if(key3=0)delay(10);if(key3=0)while(!key3);switch(shi)case 0:shi+;break;case 1:shi+;break;case 2:shi+;break;case 3:shi+;break;case 4:shi+;break;case 5:shi=0;break;if(key2=0)delay(10);if(key2=0)while(!key2);if(qian=0)switch(bai)case 0:bai+;break;case 1:bai+;break;case 2:bai+;break;case 3:bai+;break;case 4:bai+;break;case 5:bai+;break;case 6:bai+;break;case 7:bai+;break;case 8:bai+;break;case 9:bai=0;break;if(qian=1)switch(bai)case 0:bai+;break;case 1:bai+;break;case 2:bai+;break;case 3:bai+;break;case 4:bai+;break;case 5:bai+;break;case 6:bai+;break;case 7:bai+;break;case 8:bai+;break;case 9:bai=0;break;if(qian=2)switch(bai)case 0:bai+;break;case 1:bai+;break;case 2:bai+;break;case 3:bai=0;break;if(key1=0)delay(10);if(key1=0)while(!key1);if(bai=0)switch(qian)case 0:qian+;break;case 1:qian+;break;case 2:qian=0;break;if(bai=1)switch(qian)case 0:qian+;break;case 1:qian+;break;case 2:qian=0;break;if(bai=2)switch(qian)case 0:qian+;break;case 1:qian+;break;case 2:qian=0;break;if(bai=3)switch(qian)case 0:qian+;break;case 1:qian+;break;case 2:qian=0;break;if(bai=4)switch(qian)case 0:qian+;break;case 1:qian=0;break;if(bai=4)switch(qian)case 0:qian+;break;case 1:qian=0;break;if(bai=5)switch(qian)case 0:qian+;break;case 1:qian=0;break;if(bai=6)switch(qian)case 0:qian+;break;case 1:qian=0;break;if(bai=7)switch(qian)case 0:qian+;break;case 1:qian=0;break;if(bai=8)switch(qian)case 0:qian+;break;case 1:qian=0;break;if(bai=9)switch(qian)case 0:qian+;break;case 1:qian=0;break;void main ()P3=0xff;init();TMOD=0x01; /001TH0=(65536-50000)/256;/TL0=(65536-50000)%256;EA=1;/ET0=1;/0TR0=1;/EX0=1;EX1=1;IT0=1;IT1=1;while(1)P0=0xfe;P2=tabge;delay(1);P0=0xff;P2=0xff;P0=0xfd;P2=tabshi;delay(1);P0=0xff;P2=0xff;P0=0xfb;P2=tabbai-0x80;delay(1);P0=0xff;P2=0xff;P0=0xf7;P2=tabqian;delay(1);P0=0xff;P2=0xff;keyscan();void zijia() interrupt 1TH0=(65536-50000)/256;/TL0=(65536-50000)%256;tt+;if(tt=1200)tt=0;ge+;if(g