Advantech PCM-9588 user manual RA02 Start

;.....

;bit 7 = gpio 7 , 0 => Low; 1 => High ;===============================================================

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

;Set GPIO status

;Input:

;ax=5E87h

;bh=04h

;cl= n ; n means which group of GPIO you want to set

;bl= the n group of gpio status

;bit 0 = gpio 0 , 0 => Low; 1 => High

;bit 1 = gpio 1 , 0 => Low; 1 => High

;.....

;bit 7 = gpio 7 , 0 => Low; 1 => High

;output:

; ax=5E78 ;function success, other value means function fail ;===============================================================

;RA02 - END
;RA02 - START
mov	ax,5e87h
mov	bh,00h
int	15h
cmp	ax,5e78h
je	next_test
lea	dx, Error_Str1
mov	ah,09h
int	21h
jmp	Finish_Test
next_test:
xor	ch,ch
push	cx	;save NO. of GPIO chip
;RA02 - END
;1.Set GPIO 0,2,4,6 as output, GPI 1,3,5,7 as input
;RA02 - START
mov	ax,5e87h
mov	bx,02aah
int	15h
;RA02 - END
;2. Set GPIO 0,2,4,6 Output Low
;RA02 - START
pop	cx	;restore NO. of GPIO chip
push	cx	;save NO. of GPIO chip
mov	ax,5e87h

PCM-9588 User Manual 82