p10_int0中断 _2.cpp.c

单片机C语言15个实验附有原理图和程序 是我的课程作业 以经过实践验证

//int0+int1
#include <stdio.h>
#include <reg51.h>
#include <intrins.h>
#define hi 0x3c
#define lo 0xb0   //50ms
sbit P10=P1^0;
unsigned char led_no,mask=0xfe,disp[4],int_count,t1_count,sec;
unsigned char code ledk[14]
       ={0x3f,0x06,0x5b,0x4f,0x66,0x6d,
        0x7d,0x07,0x7f,0x6f,0xf3,0x79,0x3e,0x31};//p10,E11,U12,r13
sbit P37=P3^7;sbit clk=P0^7;sbit sda=P0^6;               //74LS164
void delay(unsigned int n)
 {unsigned int i,j;
  for(i=0;i<n;i++)
     for(j=0;j<n;j++)
       ;}
void shift(unsigned char dx)
{static unsigned char d;
   unsigned char j=0;
    d=dx;
   	while(j<8)
	{if((d&0x80)!=0) sda=1;
       else  sda=0;
	   clk=0;clk=1;
	   d<<=1;j++;}  }
void hextodec_int(char xx)
{unsigned  char B;
xx=xx%100;
 B=xx/10;          disp[1]=B;
xx=xx%10;
 B=xx;             disp[0]=B;}
void hextodec_sec(char xx)
{unsigned  char B;
xx=xx%100;
 B=xx/10;          disp[3]=B;
xx=xx%10;
 B=xx;             disp[2]=B;}
void  int0() interrupt 0  //6号键，外中断0
{ int_count++;if(int_count>99)int_count=0;   }
void  int1() interrupt 2 //外中断1 ，5号键
{ TR1=1;   }
void t1() interrupt 3//定时中断1
{TH1=hi;TL1=lo;t1_count++;
  //if(t1_count==20)
      //{t1_count=0;sec++;P10=!P10;}
  if(t1_count<=10)P10=1;
             else P10=0;
  if(t1_count==20)
      {t1_count=0;sec++;P10=1;}
  if(sec>99)sec=0;   }
 void out()
 {hextodec_int(int_count);
  hextodec_sec(sec);
  shift(ledk[disp[led_no]]);P2=mask;
  led_no++;if(led_no>3)led_no=0;
  mask=_crol_(mask,1);if(mask==0xef)mask=0xfe;
   } 
void main(void)
{TMOD=0x10;TH1=hi;TL1=lo;
 ET1=1;EX0=1;EX1=1;IT0=1;IT1=1;EA=1;int_count=0;P10=1;
 while(1)
  {out();delay(20);}    }