51單片機(jī)入門—定時(shí)器0和定時(shí)器1同時(shí)工作

ID:65608 · 發(fā)表于 2014-9-12 01:02

#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit dula=P2^6;
sbit wela=P2^7;
sbit led1=P1^0;
sbit key=P3^2;
uchar code table[]=
{
  0x3f,0x06,0x5b,0x4f,
  0x66,0x6d,0x7d,0x07,
  0x7f,0x6f,0x77,0x7c,
  0x39,0x5e,0x79,0x71
};
void delayms(uint);
void display(uchar,uchar);
uchar num,num1,num2,shi,ge;
void main()
{
  TMOD=0x11;
  TH0=(65536-45872)/256;
  TL0=(65536-45872)%6;
  TH1=(65536-45872)/256;
  TL1=(65536-45872)%6;
  EA=1;
  ET0=1;
  ET1=1;
  TR0=1;
  TR1=1;
  IT0=1;
  EX0=1;
  while(1)
  {
display(shi,ge);
  }

}

void display(uchar shi,uchar ge)
{
dula=1;
P0=table[shi];
dula=0;
P0=0xff,
wela=1;
P0=0xfe;
wela=0;
delayms(5);

dula=1;
P0=table[ge];
dula=0;
P0=0xff;
wela=1;
P0=0xfd;
wela=0;
delayms(5);
}
void delayms(uint xms)
{
uint i,j;
for(i=xms;i>0;i--)
  for(j=110;j>0;j--);
}
void int0()interrupt 0
{
  num2++;
}
void T0_time() interrupt 1
{  TH0=(65536-45872)/256;
  TL0=(65536-45872)%6;

}

void T1_time()interrupt 3
{
  TH1=(65536-45872)/256;
  TL1=(65536-45872)%6;
if(num2==4)
{
   num2=0;
num++;
if(num==100)
num=0;

shi=num/10;
ge=num;
}
}