www.pudn.com > hello_led_0.rar > Open_I2C.h

#ifndef __Open_I2C_H__ 
#define __Open_I2C_H__ 
 
//  Open_I2C 
#define I2C_PRER_LO 0 
#define I2C_PRER_HI 1 
#define I2C_CTR     2 
#define I2C_TXR     3 
#define I2C_RXR     3 
#define I2C_CR      4 
#define I2C_SR      4 
//------------------------------------------------------------------------- 
typedef union _I2C_Ctrl_Reg 
{ 
  struct _I2C_Ctrl_Flags 
  { 
    unsigned char RESERVED    : 6; 
    unsigned char INT_ENABLE  : 1; 
    unsigned char CORE_ENABLE : 1; 
  }I2C_Ctrl_Flags; 
   
  unsigned char Value; 
}I2C_Ctrl_Reg; 
//------------------------------------------------------------------------- 
typedef union _I2C_CMD_Reg 
{ 
  struct _I2C_CMD_Flags 
  { 
    unsigned char IACK      : 1; 
    unsigned char RESERVED  : 2; 
    unsigned char ACK       : 1; 
    unsigned char WR        : 1; 
    unsigned char RD        : 1; 
    unsigned char STO       : 1; 
    unsigned char STA       : 1; 
  }I2C_CMD_Flags; 
   
  unsigned char Value; 
}I2C_CMD_Reg; 
//------------------------------------------------------------------------- 
typedef union _I2C_Status_Reg 
{ 
  struct _I2C_Status_Flags 
  { 
    unsigned char IF        : 1; 
    unsigned char TIP       : 1; 
    unsigned char RESERVED  : 3; 
    unsigned char AL        : 1; 
    unsigned char BUSY      : 1; 
    unsigned char RXACK     : 1; 
  }I2C_Status_Flags; 
   
  unsigned char Value; 
}I2C_Status_Reg; 
//------------------------------------------------------------------------- 
unsigned int  I2C_Read_Period(); 
unsigned char I2C_Read_Ctrl(); 
unsigned char I2C_Read_RX(); 
unsigned char I2C_Read_Status(); 
void          I2C_Write_Period(unsigned int Period); 
void          I2C_Write_Ctrl(unsigned char value); 
void          I2C_Write_TX(unsigned char value); 
void          I2C_Write_CMD(unsigned char value); 
void          I2C_Init(unsigned int Period); 
unsigned char I2C_Send(unsigned char value,unsigned char STA,unsigned char STO); 
//------------------------------------------------------------------------- 
 
#endif