Advantech TREK-674, Manual

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4.1 Introduction
To make the hardware easier to access for programmers, Advantech has
developed an demo program in order to let customer test the functions on
TREK-674. This document describes detailed information for each Advantech
demo program so that application developers can become more familiar with
using them.
For technical support, contact Advantech application engineers
worldwide. For news updates, visit our website:
www.advantech.com
4.1.1 Execute DIO Sample Code
DIO Sample Code is demonstration of Digital input and output. It can read the
digital input status and control digital output by user self.
System Menu
TREK V3 DIO Sample Code as below figure
1.
Library Version
2.
Digital Input Status
3.
Control Digital Output
4.
Start Monitor Button
Digital Input Status

Digital Input HIGH/1 as below figure

Digital Input LOW/0 as below figure
Note : If your Digital Input is floating, it value should be HIGH since the port
is pull High by default
Digital Output Status