定时器控制数码管动态显示和流水灯

#include

#define uchar unsigned char

int tt0,tt1,num,num1,ge,shi,bai;

uchar code table[]={

0x3f,0x06,0x5b,0x4f,

0x66,0x6d,0x7d,0x07,

0x7f,0x6f,0x77,0x7c,

0x39,0x5e,0x79,0x71};

uchar code table1[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};

void delay(int z)

{

int x,y;

for(x=z;x>0;x--)

for(y=110;y>0;y--);

}

void initialize()

{

P0=~0x00;//P0口全部接高

P1=~0x00;//起初数码管一个都不亮

P2=0xff;//起初流水灯一个不亮

TMOD=0x11;

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

TH1=(65536-50000)/256;

TL1=(65536-50000)%256;

EA=1;

ET0=1;

ET1=1;

TR0=1;

TR1=1;

num=0;

num1=0;

tt1=0;

tt0=0;

}

void display(uchar ge1,uchar shi1,uchar bai1)

{

P1=table[ge1];

P0=~0x04;

delay(5);

P0=~0;

P1=table[shi1];

P0=~0x02;

delay(5);

P0=~0;

P1=table[bai1];

P0=~0x01;

delay(5);

P0=~0;

}

void main()

{

initialize();

while(1)

display(ge,shi,bai);

}

void time0() interrupt 1 {

TH0=(65536-50000)/256; TL0=(65536-50000)%256; tt0++;

if(tt0==2)

{

tt0=0;

num++;

ge=num%10;

shi=num%100/10;

bai=num/100;

if(num==256)

num=-1;

}

}

void time1() interrupt 3 {

TH0=(65536-50000)/256; TL0=(65536-50000)%256; tt1++;

if(tt1==2)

{

P2=table1[num1];

num1++;

if(num1==8)

num1=0;

tt1=0;

}

}