Advantech ARK-1503 User Manual page 63

xor ch,ch
push cx ;save NO. of GPIO chip
;1.Set GPIO 0,2,4,6 as output, GPI 1,3,5,7 as input
mov ax,5e87h
mov bx,02aah
int 15h
;2. Set GPIO 0,2,4,6 Output Low
pop cx ;restore NO. of GPIO chip
push cx ;save NO. of GPIO chip
mov ax,5e87h
mov bx,0400h
int 15h
;3. Check GPI 1,3,5,7 value
pop cx ;restore NO. of GPIO chip
push cx ;save NO. of GPIO chip
mov ax,5e87h
mov bx,03FFh
int 15h
pop cx ;restore NO. of GPIO chip
push cx ;save NO. of GPIO chip
dec cx
mov al,Fail_lenght
mul cl
lea dx, Fail_Str
add dx,ax
cmp bl,00
jne test_result
;4. Set GPIO 0,2,4,6 Output differential
pop cx ;restore NO. of GPIO chip
push cx ;save NO. of GPIO chip
mov ax,5e87h
mov bx,0411h
int 15h
;5. Check GPI 1,3,5,7 value
pop cx ;restore NO. of GPIO chip
push cx ;save NO. of GPIO chip
mov ax,5e87h
mov bx,03FFh
int 15h
pop cx ;restore NO. of GPIO chip
51 ARK-1503 User Manual