ADLINK Technology DLAP-3200-CF Series, User Manual

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Digital Input/Output Function Library 133
DLAP-3200-CF
Appendix E Digital Input/Output Function
Library
DI/O provides input/output to support inter-device communica-
tions. Simple programming guides allow easy transmission of digi-
tal signals between the system and attached peripherals.
DI/O with API/Windows
DLAP-3200 DI/O API library files and a demo program (including
source code) can be downloaded from:
https://www.adlinktech.com/Products/Industrial_PCs_Fanless_
Embedded_PCs/IPCSystems/DLAP-3200-CF_Series
.
To use the DI/O function library for the DLAP-3200 series, include
the header file (GpioLib.h) and linkage library (GpioLib.lib) in the
C++ project. DI/O functions are as follows.
GPIO_Init
This API checks if the GPIO driver handle is valid.
char GPIO_Init ()
Return values:
GPIO_OK
on success.
GPIO_ERROR
on failure.
GPI_Read
This API reads the digital input (DI) pin status:
char GPI_Read(UCHAR GpioNum, PUCHAR data)
Arguments:
GpioNum
: The number of a digital input pin (0-3)
data
: The digital input pin status will be copied to this
address reference
Return values:
GPIO_OK
on success.
GPIO_ERROR
on failure.