io.h

通过并口控制I2C总线的动态库源码

//#include <windows.h>

/*
extern  void WINAPI PortOut(short int Port, char Data);
extern  void WINAPI PortWordOut(short int Port, short int Data);
extern  void WINAPI PortDWordOut(short int Port, int Data);
extern  char WINAPI PortIn(short int Port);
extern  short int WINAPI PortWordIn(short int Port);
extern  int WINAPI  PortDWordIn(short int Port);
extern  void WINAPI SetPortBit(short int Port, char Bit);
extern  void WINAPI ClrPortBit(short int Port, char Bit);
extern  void WINAPI NotPortBit(short int Port, char Bit);
extern  short int WINAPI  GetPortBit(short int Port, char Bit);
extern  short int WINAPI  RightPortShift(short int Port, short int Val);
extern  short int WINAPI  LeftPortShift(short int Port, short int Val);
extern  short int WINAPI IsDriverInstalled();
*/

/*
extern "C"  void  PortOut(short int Port, char Data);
extern "C"  void  PortWordOut(short int Port, short int Data);
extern "C"   void  PortDWordOut(short int Port, int Data);
extern "C"  char  PortIn(short int Port);
extern "C"   short int  PortWordIn(short int Port);
extern "C"   int   PortDWordIn(short int Port);
extern "C"   void  SetPortBit(short int Port, char Bit);
extern "C"   void  ClrPortBit(short int Port, char Bit);
extern "C"   void  NotPortBit(short int Port, char Bit);
extern "C"   short int   GetPortBit(short int Port, char Bit);
extern "C"   short int   RightPortShift(short int Port, short int Val);
extern "C"   short int   LeftPortShift(short int Port, short int Val);
extern "C"   short int  IsDriverInstalled();
*/

typedef void (WINAPI *PORTOUT) (short int Port, char Data);
typedef void (WINAPI *PORTWORDOUT)(short int Port, short int Data);
typedef void (WINAPI *PORTDWORDOUT)(short int Port, int Data);
typedef char (WINAPI *PORTIN) (short int Port);
typedef short int (WINAPI *PORTWORDIN)(short int Port);
typedef int (WINAPI *PORTDWORDIN)(short int Port);
typedef void (WINAPI *SETPORTBIT)(short int Port, char Bit);
typedef void (WINAPI *CLRPORTBIT)(short int Port, char Bit);
typedef void (WINAPI *NOTPORTBIT)(short int Port, char Bit);
typedef short int (WINAPI *GETPORTBIT)(short int Port, char Bit);
typedef short int (WINAPI *RIGHTPORTSHIFT)(short int Port, short int Val);
typedef short int (WINAPI *LEFTPORTSHIFT)(short int Port, short int Val);
typedef short int (WINAPI *ISDRIVERINSTALLED)();

extern PORTOUT PortOut;
extern PORTWORDOUT PortWordOut;
extern PORTDWORDOUT PortDWordOut;
extern PORTIN PortIn;
extern PORTWORDIN PortWordIn;
extern PORTDWORDIN PortDWordIn;
extern SETPORTBIT SetPortBit;
extern CLRPORTBIT ClrPortBit;
extern NOTPORTBIT NotPortBit;
extern GETPORTBIT GetPortBit;
extern RIGHTPORTSHIFT RightPortShift;
extern LEFTPORTSHIFT LeftPortShift;
extern ISDRIVERINSTALLED IsDriverInstalled;

extern HMODULE hio;

extern void UnloadIODLL();
extern int  LoadIODLL();
//extern unsigned char f_I2C_Error;
 struct IICaddress
{
    short int LPTaddress;
    char NoBit;
    unsigned char CPLflag;
};

//extern  IICaddress  SDA_Out; 
//extern IICaddress  SDA_In;  
//extern IICaddress  SCL_Out;
//extern IICaddress  SCL_In;
/*
 void LPT_WriteByte( short int address, char data);
  char LPT_ReadByte( short int address);
 unsigned char IicReadByte( unsigned char SlaveAddr, unsigned char RegAddr );
 void IicWriteByte( unsigned char SlaveAddr, unsigned char RegAddr, unsigned char RegData );
 void IicAckTest( unsigned char SlaveAddr );
*/