Intel user manual Appendix, IB957 User’s Manual

APPENDIX

return 0;

}

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

void EnableWDT(int interval)

{

unsigned char bBuf;
bBuf = Get_F81865_Reg(0x2B);
bBuf &= (~0x20);
Set_F81865_Reg(0x2B, bBuf);	//Enable WDTO
Set_F81865_LD(0x07);	//switch to logic device 7
Set_F81865_Reg(0x30, 0x01);	//enable timer
bBuf = Get_F81865_Reg(0xF5);
bBuf &= (~0x0F);
bBuf = 0x52;
Set_F81865_Reg(0xF5, bBuf);	//count mode is second
Set_F81865_Reg(0xF6, interval);	//set timer
bBuf = Get_F81865_Reg(0xFA);
bBuf = 0x01;
Set_F81865_Reg(0xFA, bBuf);	//enable WDTO output
bBuf = Get_F81865_Reg(0xF5);
bBuf = 0x20;
Set_F81865_Reg(0xF5, bBuf);	//start counting
}
//---------------------------------------------------------------------------
void DisableWDT(void)
{
unsigned char bBuf;
Set_F81865_LD(0x07);	//switch to logic device 7
bBuf = Get_F81865_Reg(0xFA);
bBuf &= ~0x01;
Set_F81865_Reg(0xFA, bBuf);	//disable WDTO output
bBuf = Get_F81865_Reg(0xF5);
bBuf &= ~0x20;
bBuf = 0x40;
Set_F81865_Reg(0xF5, bBuf);	//disable WDT
}
//---------------------------------------------------------------------------

66 IB957 User’s Manual