main.c

单片机读写E2P程序 利用单片机和2402连接,向2402内写入一串数据,单片机通过按键来将写入的数据读出来 用LED显示

 #include "reg52.h"
 #include "def.h"
 #include "absacc.h"
 #include "DISPLAY.h"
 //#include "key.h"
 #include "eep16.h" 
sbit key_1=P1^0	;	
sbit key_2=P1^1	;	
sbit key_3=P1^2	;	
sbit key_4=P1^3;

 
  //uchar code single[10]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
 // uchar code single_point[9]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0xff};
  
  
   uchar led_0=0,led_1=0,led_2=0,led_3=0,led_display=0;
   uchar idata read_buff[12]=0; 
  
  
  
   uchar q=0,p=0,write_buff[12]={0,1,2,3,9,8,4,2,2,1,10,11};
  //uchar light1_0=0,light1_1=0,light2_0=0,light2_1=0,light3_0=0,light3_1=0;

void time_again(int t)
 { 
   int i;
   while(t--)
     for(i=0;i<5;i++)
	        display(read_buff[q],q,write_buff[p],p);
}



 void key_function(void)
   {
    
	if((P1&0x0f)!=0x0f)
    	{ 
	     time_again(10);
	       if(key_1==0)
           {
             if(p==9)
			  { 
              CAT24C16Write( &write_buff[p],p,1);
			  p=0;}
			  else{
			  CAT24C16Write( &write_buff[p],p,1);
  			  p++;}
            }
	       if(key_2==0)
	       {
		     q++;
		     if(q>9)
			   {
			   	q=0;
                CAT24C16Read( &read_buff[q],q,1);
			   }
              else 
			     CAT24C16Read( &read_buff[q],q,1);
  			       
			  
		       
			}
	       if(key_3==0)
            {
			  uchar nothing[10]=0;
			  CAT24C16Write( nothing,0,10); 
               q=0;
			   p=0;
			   read_buff[10]=0;

              
	        }
           if(key_4==0)
                 {
                  
                  }
	     
          }

   while((P1&0x0f)!=0x0f)display(read_buff[q],q,write_buff[p],p);
     }
	 


  void main(void)
 {
  
   while(1)
   {key_function();
    display(read_buff[q],q,write_buff[p],p);
	}
  }