Advantech PCM-3353 Manual de usuario descargar pdf (Pagina 54)

PCM-3353 User Manual 46

C.1 Watchdog Function

;The SCH3114 Runtime base I/O address is 800h

;Setting WatchDog time value location at offset 66h

;If set value "0", it is mean disable WatchDog function.

Superio_GPIO_Port = 800h

mov dx,Superio_GPIO_Port + 66h

mov al,00h

out dx,al

.model small

.486p

.stack 256

.data

SCH3114_IO EQU 800h

.code

org 100h

.STARTup

;====================================================

;47H

;enable WDT function bit [0]=0Ch

;====================================================

mov dx,SCH3114_IO + 47h

mov al,0Ch

out dx,al

;====================================================

;65H

;bit [1:0]=Reserved

;bit [6:2]Reserve=00000

;bit [7] WDT time-out Value Units Select

;Minutes=0 (default) Seconds=1

;====================================================

mov dx,SCH3114_IO + 65h ;

mov al,080h

out dx,al

;====================================================

;66H

;WDT timer time-out value

;bit[7:0]=0~255

;====================================================

mov dx,SCH3114_IO + 66h

mov al,01h

out dx,al

;====================================================

;bit[0] status bit R/W

;WD timeout occurred =1

;WD timer counting = 0

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 69 70

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Advantech PCM-3353 Manual de usuario Pagina 54

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