I2C using ARM Cortex:

I2C EEPROM Write using ARM Cortex:

#include <stdio.h>
#include "NUC1xx.h"
#include "SYS.h"
#include "GPIO.h"
//#include "I2C.h"
#include "Scankey.h"
#include "LCD.h"
#include "EEPROM_24LC64.h"

#define ENABLE_I2C1
#define I2C_ADDR 0x00
int main(void)
{
    uint32_t i2cdata=0;
    unsigned char temp;
    char TEXT0[16]="                ";
    char TEXT1[16]="Addr:           ";
    char TEXT2[16]="Write:          ";
    char TEXT3[16]="Read:           ";

    UNLOCKREG();
    SYSCLK->PWRCON.XTL12M_EN = 1; // enable external clock (12MHz)
    SYSCLK->CLKSEL0.HCLK_S = 0;      // select external clock (12MHz)
    LOCKREG();   
   
    init_LCD();  //call initial pannel function
    clear_LCD();
   
    print_Line(0, "I2C with 24LC65");
    print_Line(1, "test read and  ");
    print_Line(2, "write function ");     
    print_Line(3, "press key1-key9");

    DrvGPIO_InitFunction(E_FUNC_I2C1);    
  OpenKeyPad();

    while(1)
    {   
      temp=ScanKey();

        if (temp!=0) sprintf(TEXT0,"Key%d is pressed",temp);
        else         sprintf(TEXT0,"Key not pressed");
        print_Line(0,TEXT0);
        print_Line(1,"               ");
        print_Line(2,"               ");
      print_Line(3,"               ");
                    
        Write_24LC64(0x00000000+temp,temp+temp*10+temp);
        i2cdata= Read_24LC64(0x00000000+temp);
        sprintf(TEXT1+6,"%x",temp);
        sprintf(TEXT2+6,"%x",temp+11);
        sprintf(TEXT3+6,"%x",i2cdata);
        print_Line(1,TEXT1);
        print_Line(2,TEXT2);
        print_Line(3,TEXT3);
       
    DrvSYS_Delay(200000);       
    }
}