at24c256.c

通过AT89S52的I/O口模拟IIC接口,读写控制AT24C256,适用于AT24C64、AT24C256、At24C512

#include<reg52.h>
#include<absacc.h>
#include<MY7219.h>
#include<SerialPort.h>
//#include<DS1302.h>
#include<I2C.h>
#include<I2C_EEPROM.h>
//#include<28C64_6264.h>



void Display_LED(unsigned char location,unsigned char *dat,unsigned char n)
{
  unsigned char i;
  for(i=0;i<n;i++)
   {
     LED_Drive(location+i,dat[i]&0x0f);
    }   
}

/*
void DisplayTimer(unsigned char LED_START,unsigned char *sec)
{ 
  unsigned char Timer[7],x,y;
  GetTimer(Timer);

  x=(Timer[2]&0xf0)>>4;
         
  LED_Drive(LED_START,x);

  x=Timer[2]&0x0f;
  y=Timer[1]&0x0f;
  if(*sec!=Timer[0])
          {
            x+=0x80;
			y+=0x80;
            *sec=Timer[0];
          }
  LED_Drive(LED_START+1,x);
  LED_Drive(LED_START+2,(Timer[1]&0xf0)>>4);
  
 
  LED_Drive(LED_START+3,y);
  LED_Drive(LED_START+4,(Timer[0]&0xf0)>>4);
  LED_Drive(LED_START+5,Timer[0]&0x0f);
  
}
*/
void main()
{
 unsigned char dat[16]={1,9,8,2,0,1,3,0,0,0,0x0a,0x0d,0x0c,0x0d,0x0e,0x0f}; 
// unsigned char dd[6];
/* 
unsigned char code Time[7]={
                           0x04,//sec
                           0x09,//min
                           0x01,//hour
                           0x01,//date
                           0x02,//month
                           0x05,//dat
                           0x00,//year
                           };
 */
 unsigned char  code Time2[]={0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x09,0x08};
 unsigned char c=0;
 XBYTE[0x03]=1;
 InitSerialPort0();                             
 Init_MAX7219();
 Cls();

 Display_LED(0,dat,6);
 Delay7219(3000);
 //Write_I2C_EEPROM(0,0x00,Time2,8);
 Delay7219(100);


 while(1)
 {  
     Read_I2C_EEPROM(0,0x02,dat,7);
	 Display_LED(0,dat,6);
	 Delay7219(1000);     }
}