Advantech TPC-1770 Manual do Utilizador descarregar pdf (Página 42)

TPC-1770/1780 User Manual 34

;----------------------------

; select WDT timeout value

;----------------------------

mov dx, bx

add dx, 66h

mov al, 10 ; 10 seconds

out dx, al

2. Enable watchdog timer and set 5 minutes of timeout interval

;----------------------------

; enter configuration state

;----------------------------

mov dx, 2Eh

mov al, 55h

out dx, al

;----------------------------

; select watchdog registers

;----------------------------

mov al, 7

mov dx, 2Eh

out dx, al

mov dx, 2Fh

mov al, 0ah

out dx, al

;----------------------------

; get base address

;----------------------------

mov al, 60h

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Advantech TPC-1770 Manual do Utilizador Página 42