IBASE MI900 User Manual
Page 61
APPENDIX
MI900 User’s Manual
57
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
}
//=======================================================================