Sample Programs

The following example demonstrates how to program the board using the C programming language under Windows. The example shows how to close or open a relay.

To run, Enter the following command line:

GXPIOEX <PciSlot> <specific_command>

Where:

<slot>	PCI/PXI Explorer slot number where the board reside.
<port \| counter numbers>	The digital i/o port number (0-6) or the counter number (0-3).
<operation>	Operation code: RD=read port direction WD=write port direction RP=read port value WP=write port value RC=read counter WC=write counter
<direction \| value \| count>	Direction for WP operation: 0-15=for the port 4 groups. Each bit controls the direction of a byte of the port. 1 for output, 0 for input. Value for WP operation: 0 - 0xFFFFFFFF for port value Count for WC operation: 0 - 255 for counter value

Sample Programs

<slot>

PCI/PXI Explorer slot number where the board reside.

<port | counter numbers>

The digital i/o port number (0-6) or the counter number (0-3).

<operation>

Operation code:

RD=read port direction

WD=write port direction

RP=read port value

WP=write port value

RC=read counter

WC=write counter

<direction | value | count>

Direction for WP operation:

0-15=for the port 4 groups. Each bit controls the direction of a byte of the port. 1 for output, 0 for input.

Value for WP operation:

0 - 0xFFFFFFFF for port value

Count for WC operation:

0 - 255 for counter value