beautypg.com

IEI Integration ECW-281B_B2-D525 User Manual

Page 137

background image

ECW-281B/B2-D525 Embedded System

Page 124

NOTE:

When exiting a program it is necessary to disable the Watchdog Timer,

otherwise the system resets.

Example program:


; INITIAL TIMER PERIOD COUNTER
;
W_LOOP:

MOV AX, 6F02H

;setting the time-out value

MOV BL, 30

;time-out value is 48 seconds

INT 15H
;
; ADD THE APPLICATION PROGRAM HERE
;
CMP EXIT_AP, 1

;is the application over?

JNE W_LOOP

;No, restart the application


MOV AX, 6F02H

;disable Watchdog Timer

MOV BL, 0

;

INT 15H
;
; EXIT ;