text1.c

单片机最小系统

		#include "reg51.h"
int Led[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};  
int   i,j;
char Display[]={0x00,0x81,0xc3,0xe7,0xff,0xe7,0xc3,0x81};  //0000,0000  1000,
                                                //0001  1100,0011  1110,0111   
   
//void Led_Display(void);
void delay10ms(void)
{
  unsigned char i,j;
  for(i=20;i>0;i--)
  for(j=248;j>0;j--);
}
void delay02s(void)
{
  unsigned char i;
  for(i=20;i>0;i--)
    {delay10ms();
    }
}
void main()
{
 P2=0xff;
 while(1)
 {
   for(j=0;j<6;j++)
   {
  for(i=0;i<8;i++)
  {
   P2=Display[i];
   delay02s();  
  }
      }
      for(j=0;j<3;j++)
   {
  for(i=0;i<8;i++)
  {
   P2=Led[i];
   delay02s();    
  }
     for(i=0;i<8;i++)
  {
            P2=Led[7-i];
   delay02s(); 
  }   
   }  
 }        
}