Tangent VITA 474, Руководство пользователя

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82
NOTE:
The Watchdog Timer is activated through software. The software
application that activates the Watchdog Timer must also deactivate it
when closed. If the Watchdog Timer is not deactivated, the system will
automatically restart after the Timer has finished its countdown.
EXAMPLE PROGRAM:
; INITIAL TIMER PERIOD COUNTER
;
W_LOOP:
;
MOV
MOV
AX, 6F02H
BL, 30
;setting the time-out value
;time-out value is 48 seconds
INT 15H
;
; ADD THE APPLICATION PROGRAM HERE
;
CMP
JNE
EXIT_AP, 1
W_LOOP
;is the application over?
;No, restart the application
MOV
MOV
AX, 6F02H
BL, 0
;
;disable Watchdog Timer
INT 15H
;
; EXIT ;