justhomework/MCU/MCU_2 _External_Interrupt/led_num.c

#include <reg52.h>
#include "led_num.h"
#include <intrins.h>
#include "delay.h"

#define DUTY 10
static unsigned int i = 0;
const unsigned char hello_var[] = {0x89, 0x86, 0xc7, 0xc7, 0xc0,0xff};
static unsigned char get_var(int k)
{
	return hello_var[(65535-i+k)%6];
}


static unsigned char var2 = 0xfd;
static unsigned int count = 0;
static unsigned char e = 0xfe;

void hello_display()
{
  if(count  < DUTY)
    {
			P0 = 0xfe;
      P2 = get_var(5);
      delay(1);
      P2 = 0XFF;

      P0 = 0xfd;
      P2 = get_var(4);
      delay(1);
      P2 = 0XFF;
			
			P0 = 0xfb;
      P2 = get_var(3);
      delay(1);
      P2 = 0XFF;
			
			P0 = 0xf7;
      P2 = get_var(2);
      delay(1);
      P2 = 0XFF;
			
			P0 = 0xef;
      P2 = get_var(1);
      delay(1);
      P2 = 0XFF;
			
			P0 = 0xdf;
      P2 = get_var(0);
      delay(1);
      P2 = 0XFF;

//      var2 = var2 >> 1;
//      if(var2 == 0)
//        var2 = 0x10;
    }
  if(count  >= DUTY)
    {
      P2 = 0XFF;

    }
  count++;
  if(count >= 100)
    count = 0;
  return;
}

void hello_push()
{
//  var2 = _crol_(var2, 1);
  i++;
//  if(var2 < 0xdf)
//    {
//      i = 0;
//      var2 = 0xfd;
//    }
}

void num_display()
{
  if(count  < DUTY)
    {

      P0 = 0xfe;
      P2 = e;
      delay(1);
      P2 = 0XFF;

//      var2 = var2 >> 1;
//      if(var2 == 0)
//        var2 = 0x10;
    }
  if(count  >= DUTY)
    {
      P2 = 0XFF;
    }
  count++;
  if(count >= 100)
    count = 0;
  return;
}


void num_push()
{
  e = _crol_(e, 1);
}

void ledfull()
{
  P2 = 0xff;
  P0 = 0X00;
}


void hello_full_display()
{
  if(count  < DUTY)
    {
			unsigned char var3=0xfd;
			int j;
			for(j=0;j<5;j++)
			{
				  var3 = _crol_(var3,1);
					P1=var3;
					P2 = hello_var[i];
					delay(1);
					P2 = 0XFF;
			}

//      var2 = var2 >> 1;
//      if(var2 == 0)
//        var2 = 0x10;
    }
  if(count  >= DUTY)
    {
      P2 = 0XFF;

    }
  count++;
  if(count >= 100)
    count = 0;
  return;
}