/*************************************************************************
*                           Point RTOS(51)                               *
*                 The Real-Time Kernel(For Keil c51)                     *
*                                                                        *
*                     (c) Copyright 2005, PenGH                          *
*                         All Rights Reserved                            *
*                                                                        *
*                              Ver 01.0.2                                *
*                                                                        *
*        File :  I2C.h                                                   *
*      Author :  彭光紅                                                  *
*     History :                                                          *
*                2006/04  By PenGH  文件建立                             *
*************************************************************************/


/*----------------------------------------------------------------------*/
#ifndef _I2C_H_

   #define _I2C_H_


 #include ".\OS_INC\config.h"

 #define p1  P1                               /*define the p1 port*/

#ifdef  __IN_I2C_FILE__
  #define  I2C_EXT
#else
  #define  I2C_EXT  extern
#endif

/*************************************************************************
*
*  DESCRIPTION : 定義I2C操作的數(shù)據(jù)線(xiàn)與時(shí)鐘線(xiàn)，用戶(hù)應(yīng)根據(jù)系統(tǒng)更改
*
*************************************************************************/
   sbit  scl=p1^6;
   sbit  sda=p1^7;

/*************************************************************************
*
*  DESCRIPTION : 定義I2C設(shè)備的物理地址
*
*************************************************************************/
#define  DeviceAddr    0xA0

/*************************************************************************
*
*  DESCRIPTION : 定義I2C設(shè)備的類(lèi)型
*
*************************************************************************/
#define  Device_24C02   1
#define  Device_24C04   0
#define  Device_24C08   0
#define  Device_24C16   0
#define  Device_24C32   0
#define  Device_24C64   0

I2C_EXT  void i2c_start();
I2C_EXT  void i2c_stop();
I2C_EXT  void i2c_ack();
I2C_EXT  void i2c_not_ack();
I2C_EXT UINT8 i2c_write(UINT8 buf);
I2C_EXT UINT8 i2c_read();
I2C_EXT UINT8 i2c_write_address(UINT8 addr);
I2C_EXT UINT8 i2c_write_bytes(UINT8 offset,UINT8 len,UINT8 *buf);
I2C_EXT UINT8 i2c_read_bytes(UINT8 offset,UINT8 len,UINT8 * buf);

#endif