dac.h

用VC编辑的一个MD5算法

//************************************************************************
//************************************************************************
//
//  DAC.h (from dac8.h user module template)
//  Rev A, 2002 Jul 18
//
//  C declarations for the DAC9 user module interface.
//
//  Copyright (c) Cypress MicroSystems 2002. All Rights Reserved.
//
//************************************************************************
//************************************************************************
#include <m8c.h>

// Power Setting Defines
#define DAC_OFF                 0
#define DAC_LOWPOWER            1
#define DAC_MEDPOWER            2
#define DAC_FULLPOWER           3

// Define constants for declaring function prototypes based on DataFormat parameter
#define DAC_OffsetBinary            0x04
#define DAC_TwosComplement          0x02
#define DAC_SignAndMagnitude        0x01
#define DAC_RawRegister             0x00
#define DAC_DATAFORMAT          0x1 
#define DAC_OFFSETBINARY        DAC_DATAFORMAT & DAC_OffsetBinary 
#define DAC_TWOSCOMPLEMENT      DAC_DATAFORMAT & DAC_TwosComplement 
#define DAC_SIGNANDMAGNITUDE    DAC_DATAFORMAT & DAC_SignAndMagnitude 


// Declare function fastcall pragmas
#pragma fastcall DAC_Start
#pragma fastcall DAC_SetPower
#pragma fastcall DAC_Stop

// Declare general functions
extern void  DAC_Start(BYTE bPowerSetting);
extern void  DAC_SetPower(BYTE bPowerSetting);
extern void  DAC_Stop(void);

// Declare overloaded functions based on DataForamt parameter selected
#if DAC_OFFSETBINARY 
   #pragma fastcall DAC_WriteBlind
   #pragma fastcall DAC_WriteStall
   extern void  DAC_WriteBlind(WORD wOutputValue);
   extern void  DAC_WriteStall(WORD wOutputValue);
#else 
   #if DAC_TWOSCOMPLEMENT 
      #pragma fastcall DAC_WriteBlind
      #pragma fastcall DAC_WriteStall
      extern void  DAC_WriteBlind(INT iOutputValue);
      extern void  DAC_WriteStall(INT iOutputValue);
   #else    //DAC_SIGNANDMAGNITUDE 
      #pragma fastcall DAC_WriteBlind2B
      #pragma fastcall DAC_WriteStall2B
      extern void  DAC_WriteBlind2B(BYTE bMSB, BYTE bLSB);
      extern void  DAC_WriteStall2B(BYTE bMSB, BYTE bLSB);
   #endif
#endif