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Sample Code
C Language for Watchdog Timer under DOS.
#include<stdio.h>
#include<dos.h>
static unsigned int 83627UHG_Port = 0x2e;
{
Outportb(83627UHG_Port,0x87);
Outportb(83627UHG_Port,0x87);
}
void W83627UHG_WDT(unsigned int count_setup)
{
unsigned int Counting, Register_Setup;
outportb(83627UHG_Port, 0x07);
outportb(83627UHG_Port+1, 8); // set as Logical
Device 8
if(count_value >= 60)
{
outportb(83627UHG_Port, 0xf5);
Register_Setup = inportb(83627UHG_Port+1);
Register_Setup |= 0x08;
outportb(83627UHG_Port+1, Register_Setup); /
/ set as minute mode
counting = count_setup / 60;
if((count_value%60) > 30)
counting++;
if(counting > 255)
counting = 255;
printf("WDT timeout in %d minutes.\n",
counting);
}
else
{
outportb(83627UHG_Port, 0xf5);
Register_Setup = inportb(83627UHG_Port+1);
Register_Setup &= 0xf7;
outportb(83627UHG_Port+1, Register_Setup); /
/ set as second mode
Counting = count_setup;
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