Advantech ARK-3400, Руководство пользователя, Страница: 84 / 87

ARK-3400 User Manual 72
E.1 Programming GPIO
Advantech provides SUSI (Secure & Unified Smart Interface) API for customers. It is
a set of user-friendly, intelligent and integrated application programming interfaces,
which shortens development time, enhances security and offers add-on value for
Advantech platform users. SUSI makes applications easier and simpler to build and
operate. For the detailed GPIO register, please refer to below contents.
E.2 GPIO Programming
For DOS GPIO control is through INT 15 Hook
In windows XP system please use SUSI
Below is an example of how to call sub routine °×Get Number of GPIO group°±
========================================
mov ax,5e87h
mov bh,00h
int 15h
Detail information of INT 15 sub routine£½
;===============================================================
; Get Number of GPIO group
; one group mean 8 gpio pins (one GPIO Chip)
; Input:
; ax=5E87h
; bh=00h
; output:
; ax=5E78 ;function success, other value means function fail
; cl= n group of gpio
;===============================================================
;===============================================================
; Get GPIO Config
; Input:
; ax=5E87h
; bh=01h
; cl= n ; n means which group of GPIO you want to get
; output:
; ax=5E78 ;function success, other value means function fail
; bl= the n group of gpio config
; bit 0 = gpio 0 , 0 => output pin; 1 => input pin
; bit 1 = gpio 1 , 0 => output pin; 1 => input pin
; .....
; bit 7 = gpio 7 , 0 => output pin; 1 => input pin
;===============================================================
;===============================================================
; Set GPIO Config
; Input:
; ax=5E87h