#ifndef __I2C_H
#define __I2C_H

//-------------------------------------------

#define Fpclk       (Fcclk / 1) * 1             //VPB clock frequence , must be 1、2、4 multiples of (Fcclk / 4).
#define Fi2c        10000//50000//SMBUS總線通訊率為50KBPS



class I2cObj;
class I2cObj {//系統通訊類
public:
  I2cObj(void);
private:
  void I2cInit(void);
public:
  void Start(void);
  void REStart(void);
  void Exit(void);
  void Stop(void);
  void Exec(void);
  unsigned char ReadByte(unsigned char, unsigned char &);
  unsigned char WriteByte(unsigned char, unsigned char);
  unsigned char ReadBlock(unsigned char, unsigned int);
  unsigned char WriteBlock(unsigned char, unsigned int);
public:
  volatile bool Busy;
  volatile unsigned int state;
  volatile unsigned int Count; 
  volatile unsigned int MainCount, SubCount; 
  volatile unsigned char SubAddr;
  volatile unsigned char MainComm, SubComm;
  volatile unsigned char TxBuffer[16], RxBuffer[16];//接收數據緩沖區
};


#endif  // __I2C_H