text1.c

单片机外部中断和定时的c源码和cpld开发

#include<reg51.h>
#define uchar unsigned char
sbit START=P3^2;
sbit TOUT=P3^4;
sbit TIN=P3^5;
bit f=0;
uchar count=0,n=0;
uchar code seg[16]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x77,0x7C,0x39,0x5E,0x79,0x71};
void display(uchar n);
void main()
{
  TOUT=0;
  TIN=1;
  IE=0x8B;
  while(1)
  {
   display(count);
   if(16==count)
     count=0;
  }
}


void intrrupt0(void) interrupt 0 using 1
{
  TMOD=0x51;
  IE=0x8B;
  TL0=(65536-1833)%256;
  TH0=(65536-1833)/256;
  TL1=(65536-30000)%256;
  TH1=(65536-30000)/256;
  TR0=1;
  TR1=1;
}

void int_Timer0(void) interrupt 1 using 2
{
  TL0=(65536-1833)%256;
  TH0=(65536-1833)/256;
  TOUT=~TOUT;

}

void int_Count1(void) interrupt 3 using 3
{
  count++;
  TR0=0;
  TR1=0;
}

void display(uchar n)
{
 P1=seg[n];
}