A.1.3 Example Program - Advantech PCE-5124 User Manual

A.1.3 Example program

1. Enable watchdog timer and set 10 sec. as timeout interval
;-----------------------------------------------------------
Mov dx,2eh
Mov al,87h
Out dx,al
Out dx,al
;-----------------------------------------------------------
Mov al,07h
Out dx,al
Inc dx
Mov al,08h
Out dx,al
;-----------------------------------------------------------
Dec dx
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;-----------------------------------------------------------
Dec dx
Mov al,0f5h
Out dx,al
Inc dx
In al,dx
And al,not 08h
Out dx,al
;-----------------------------------------------------------
Dec dx
Mov al,0f6h
Out dx,al
; Unlock W83627HG
; Select registers of watchdog timer
; Enable the function of watchdog timer
; Set second as counting unit
; Set timeout interval as 10 seconds and start counting
95 Appendix A