Debugging Your Application; Running Ibtest; Presence Test Of Driver - National Instruments NI-488.2M Software Reference Manual

Chapter 4

Debugging Your Application

This chapter describes several ways to debug your application program.

Running ibtest

Before you run your application program, you should run the software
diagnostic test, ibtest, that came with your NI-488.2M software. The
ibtest program is an NI-488.2M application that makes calls to the driver. If
ibtest passes, your GPIB hardware and NI-488.2M software are interacting
correctly. The following paragraphs describe the messages you might receive
while running ibtest and how to resolve each problem. The term GPIBx
refers to one of the boards GPIB0, GPIB1, GPIB2, and GPIB3.

Presence Test of Driver

The following message appears in response to any of four situations:
No driver present for GPIB x .
<<<
• The ibtest program always tries to test the four AT-GPIB boards. In
most cases, you have fewer than four boards installed in your computer.
The above message appears when ibtest tries to test a board that does not
exist. You can ignore this message when it applies to a nonexistent board.
• The GPIB driver might not be installed. To correct this situation, make
certain that the line device=y:\at-gpib\gpib.sys—where y refers
to the letter of the drive where the NI-488.2M software is installed—is in
your config.sys file, then reboot.
• The Use this GPIB Interface field in ibconf might be set to no
for board GPIB x . If you want to use this board, you must set this field to
yes.
© National Instruments Corp.
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4-1 NI-488.2M SRM for OS/2