Intel SBC-455 manual Dog=dog/2

#include<stdio.h> #include<dos.h> #include<conio> #include <time.h> #include<graphics.h> void mydelay(void);

/* MAIN PROGRAM */ void main (void) { unsigned int dog=0

run_time=0;

char inkey;

clrscr();

gotoxy(15, 6);printf("AAEON TECHNOLOGY, INC."); gotoxy(15, 7);printf("WATCHDOG TIMER TEST & DEMO PROGRAM");

gotoxy(15, 9);printf("Please setup watchdog delay time:(2 Sec-30 Sec)");

/* Set watchdog timer time-out interval */

scanf("%2d",&dog);	/* Input watchdog timer time-
out interval (Sec) */
dog=dog/2;	/* Convert time-out interval
to designated Hex */
dog=15-dog;
outportb (0x443,dog);	/* Enable watchdog timer */
/* Setup screen display format */
gotoxy(15,11);printf("Now enable watchdog!");

gotoxy(15,12);printf("You can put keyboard reset or disable watchdog.");

gotoxy(15,13);printf(" [1]. Reset watchdog."); gotoxy(15,14);printf(" [2]. Disable watchdog."); gotoxy(15,15);printf(" [3]. Return to O.S."); /* Read key pressed */

while(1){

if(kbhit()){

inkey=getch();

switch(inkey){

case '1': /* Reset Watchdog timer */ gotoxy(15,11);printf("Now enable watchdog timer!"); outportb(0x443,dog); run_time=0;

break;

case '2': /* Disable Watchdog timer */ gotoxy(15,12);printf("Now disable watchdog timer!"); outportb (0x80,dog);

return;

default : break;

}

}

A-80SBC-455 User's Manual