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56 IB940 User’s Manual
printf("System will reset after %d seconds\n", bTime);
EnableWDT(bTime);
return 0;
}
//=======================================================================
void copyright(void)
{
printf("\n======== Winbond 83627EHF Watch Timer Tester (AUTO DETECT)
========\n"\
" Usage : W627E_WD reset_time\n"\
" Ex : W627E_WD 3 => reset system after 3 second\n"\
" W627E_WD 0 => disable watch dog timer\n");
}
//=======================================================================
void EnableWDT(int interval)
{
unsigned char bBuf;
bBuf = Get_W627EHF_Reg( 0x2D);
bBuf &= (!0x01);
Set_W627EHF_Reg( 0x2D, bBuf); //Enable WDTO
Set_W627EHF_LD( 0x08); //switch to logic device 8
Set_W627EHF_Reg( 0x30, 0x01); //enable timer
bBuf = Get_W627EHF_Reg( 0xF5);
bBuf &= (!0x08);
Set_W627EHF_Reg( 0xF5, bBuf); //count mode is second
Set_W627EHF_Reg( 0xF6, interval); //set timer
}
//=======================================================================
void DisableWDT(void)
{
Set_W627EHF_LD(0x08); //switch to logic device 8
Set_W627EHF_Reg(0xF6, 0x00); //clear watchdog timer
Set_W627EHF_Reg(0x30, 0x00); //watchdog disabled
}
//=======================================================================