Contec BX-700W, Руководство пользователя, Страница: 54 / 58

3-2
Appendix
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WDT Sample Code
SIO_INDEX_Port equ 04Eh
SIO_DATA_Port equ 04Fh
SIO_UnLock_Value equ 087h
SIO_Lock_Value equ 0AAh
WatchDog_LDN equ 007h
WDT_UNIT equ 60h ; 6 0 h = s e c o n d ,
68h=minute, 40h=Disabled Watchdog timer
WDT_Timer
equ 30 ;ex. 30 seconds
Sample Code
;Enable config mode
mov dx, SIO_INDEX_Port
mov al, SIO_UnLock_Value
out dx, al
jmp short $+2 ;Io_delay
jmp short $+2 ;Io_delay
out dx, al
;Change to WDT
mov dx, SIO_INDEX_Port
mov al, 07h
out dx, al
mov dx, SIO_DATA_Port
mov al, WatchDog_LDN
out dx, al
;Acive WDT
mov dx, SIO_INDEX_Port
mov al, 30h
out dx, al
mov dx, SIO_DATA_Port
in al, dx
or al, 01h
out dx, al
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