Ibase SI-304 User Manual download pdf (Page 56)

SI-304 User Manual

D. 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" WITHOUT 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 "F81866.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 81866 watch dog program\n");

SIO = Init_F81866();

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Ibase SI-304 User Manual Page 56