ADLINK cPCI-6520 - Manual (Page 72)

60 Utilities
Sample Code
The sample program written in C shown below offers an interac-
tive way to test the Watchdog Timer under DOS.
#include<stdio.h>
#include<dos.h>
static unsigned int W83627UHG_ioPort = 0x2e;
void Enter_W83627UHG_Config(unsigned int flag)
{
if(flag) W83627UHG_ioPort = 0x4e;
outportb(W83627UHG_ioPort, 0x87);
outportb(W83627UHG_ioPort, 0x87);
}
void Get_W83627UHG_ID(unsigned int &ID1, unsigned int
&ID2)
{
outportb(W83627UHG_ioPort, 0x20);
ID1 = inportb(W83627UHG_ioPort+1);
outportb(W83627UHG_ioPort, 0x21);
ID2 = inportb(W83627UHG_ioPort+1);
}
void W83627UHG_WDT_Run(unsigned int count_value, unsigned
int PLEDflag)
{
unsigned int tempCount, registerValue;
outportb(W83627UHG_ioPort, 0x07);
outportb(W83627UHG_ioPort+1, 8); // CR07 set Logical
Device 8
if(count_value >= 60)
{
outportb(W83627UHG_ioPort, 0xf5);
registerValue = inportb(W83627UHG_ioPort+1);
registerValue |= 0x04;
outportb(W83627UHG_ioPort+1, registerValue); /
/ set Minute mode