AMD MD740 - Watchdog Timer Configuration

APPENDIX
MB740 User’s Manual 51
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 CODES:
File name:Main.CPP
//============================================================
// 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 <stdio.h>
#include <stdlib.h>
#include "ITE8705.H"
//============================================================
int main (int argc, char *argv[]);
void copyright(void);
void EnableWDT(int);
void DisableWDT(void);
//============================================================
int main (int argc, char *argv[])
{
unsigned char bTime;
char **endptr;
copyright();
if (argc != 2)
{
printf(" Parameter incorrect!!\n");
return 1;
}
if (Init_ITE8705() == 0)
{
printf(" ITE8705 is not detected, program abort.\n");
return 1;
}
bTime = strtol (argv[1], endptr, 10);
printf("System will reset after %d seconds\n", bTime);
EnableWDT(bTime);
return 0;
}
//============================================================
void copyright(void)