IBASE SI-06 - Manual (Page 42)

42
C. Watchdog Timer Configuration
The WDT is used to generate a variety of output signals after a user programmable
count. The WDT is suitable for use in the prevention of system lock-up, such as when
software becomes trapped in a deadlock. Under these sorts of circumstances, the
timer will count to zero and the selected outputs will be driven. Under normal
circumstance, the user will restart the WDT at regular intervals before the timer counts
to zero.
SAMPLE CODE:
//---------------------------------------------------------------------------
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" W ITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
//---------------------------------------------------------------------------
#include <dos.h>
#include <conio.h>
#include <stdio.h>
#include <stdlib.h>
#include "F81801.H"
//---------------------------------------------------------------------------
int main (int argc, char *argv[]);
void EnableWDT(int);
void DisableWDT(void);
//---------------------------------------------------------------------------
int main (int argc, char *argv[])
{
unsigned char bBuf;
unsigned char bTime;
char **endptr;
char SIO;
printf("Fintek 81801 watch dog program\n");
SIO = Init_F81801();
if (SIO == 0)
{
printf("Can not detect Fintek 81801, program abort.\n");
return(1);
}//if (SIO == 0)
if (argc != 2)
{
printf(" Parameter incorrect!!\n");
return (1);
}
bTime = strtol (argv[1], endptr, 10);