Aaeon PFM-540I Rev.А Manuel d'utilisateur télécharger pdf (Page 52)

PC 104 CPU Module PFM-540I

Appendix A Programming the Watchdog Timer A-7

; game port enable

mov cl, 9

call Set_Logic_Device

Initial_OK:

CALL Exit_Configuration_mode

MOV AH,4Ch

INT 21h

Enter_Configuration_Mode PROC NEAR

MOV SI,WORD PTR CS:[Offset Cfg_Port]

MOV DX,02Eh

MOV CX,04h

Init_1:

MOV AL,BYTE PTR CS:[SI]

OUT DX,AL

INC SI

LOOP Init_1

RET

Enter_Configuration_Mode ENDP

Exit_Configuration_Mode PROC NEAR

MOV AX,0202h

CALL Write_Configuration_Data

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Aaeon PFM-540I Rev.А Manuel d'utilisateur Page 52