A.2 di/o with api/windows, Gpio_init, Gpi_read() – ADLINK MXE-1300 Series User Manual

Page 58: Di/o with api/windows, Gpio_init gpi_read()

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Watchdog Timer (WDT) & DI/O Function Libraries

FALSE

if watchdog timer fails to stop.

A.2 DI/O with API/Windows

Matrix DI/O API library files and a demo program (incl. source
code) are located on the included driver CD or downloaded from
http://www.adlinktech.com.

DI/O functions are as follows.

GPIO_Init

Reserves system resources for digital input/output API ser-
vice.It is necessary to call this function before using other MXE-
1300 DI/O functions.

@ Syntax

C/C++

I16 GPIO_Init(void)

@ Parameters

None

@ Return code

NoError

ErrorOpenDriverFailed

ErrorDeviceIoctl

GPI_Read()

Reads the digital logic state of the digital input line..

@ Syntax

C/C++

I16 GPI_Read(U16 *pwState)

@ Parameters

pwState

Returns the digital logic state of MXE-1300 digital input chan-
nels 1~4 (bit 0~3)

@ Return code