EEPROM 24C64读写程序

/*****************************************
           AT24C64C语言程序
    copyright@lance
******************************************/
#include <REG51.H>   
#include <intrins.h>
//#include"AT24C64.h"
typedef unsigned char  uchar;
typedef unsigned short ushort;
typedef unsigned int   uint;

sbit ISDA=P1^0;
sbit ISCL=P1^1;
sbit LED=P2^0;

void Delay16(unsigned int i)
{
while(i--);
}
/*****************************************
i2c project
******************************************/

void I2cInit(void);
void I2cStart(void);
void I2cStop(void);
void I2cWait(void);
bit I2cSentByte(uchar bytedata);
void SendAcknowledge(bit ack);

/*****************************************
i2c start
condition SDA 1-0 while SCL=1
******************************************/
void I2cStart(void)
{
    ISDA=1;
    ISCL=1;
    I2cWait();
    ISDA=0;
    I2cWait();
    ISCL=0;
}


/*****************************************
I2c sotp
condition SDA=0-1 while SCL=1
******************************************/
void I2cStop(void)
{
    ISDA=0;
    I2cWait();
    ISCL=1;
    I2cWait();
    ISDA=1;
}