Filename:w627dhg.cpp, Installations, Mb966 user’s manual – IBASE MB966 User Manual

Page 30

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INSTALLATIONS

24

MB966 User’s Manual

//NewData : 1 for input, 0 for output

Set_W627DHG_LD(0x09);

//switch to logic device 9

Set_W627DHG_Reg(0xF0, NewData);

}
//---------------------------------------------------------------------------
unsigned char Dio3GetDirection(void)
{

unsigned char result;


Set_W627DHG_LD(0x09);

//switch to logic device 9

result = Get_W627DHG_Reg(0xF0);

return (result);

}
//---------------------------------------------------------------------------

Filename:W627DHG.cpp

//---------------------------------------------------------------------------
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
//---------------------------------------------------------------------------
#include "W627DHG.H"
#include <dos.h>
//---------------------------------------------------------------------------
unsigned int W627DHG_BASE;
void Unlock_W627DHG (void);
void Lock_W627DHG (void);
//---------------------------------------------------------------------------
unsigned int Init_W627DHG(void)
{

unsigned int result;

unsigned char ucDid;


W627DHG_BASE = 0x4E;

result = W627DHG_BASE;


ucDid = Get_W627DHG_Reg(0x20);

if (ucDid == 0xA0)

//W83627DHG

{

goto Init_Finish;

}

else if (ucDid == 0xB0)

//W83627DHG-P

{

goto Init_Finish;

}


W627DHG_BASE = 0x2E;

result = W627DHG_BASE;


ucDid = Get_W627DHG_Reg(0x20);

if (ucDid == 0xA0)

//W83627DHG

{

goto Init_Finish;

}

else if (ucDid == 0xB0)

//W83627DHG-P

{

goto Init_Finish;

}


W627DHG_BASE = 0x00;

result = W627DHG_BASE;


Init_Finish:

return (result);

}
//---------------------------------------------------------------------------
void Unlock_W627DHG (void)
{

outportb(W627DHG_INDEX_PORT, W627DHG_UNLOCK);

outportb(W627DHG_INDEX_PORT, W627DHG_UNLOCK);

}
//---------------------------------------------------------------------------
void Lock_W627DHG (void)
{

outportb(W627DHG_INDEX_PORT, W627DHG_LOCK);

}
//---------------------------------------------------------------------------

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