Installation Verification And Troubleshooting; Run The Software Installation Test Program; Troubleshooting Error Messages - National Instruments AT-GPIB/TNT Getting Started

Chapter 4

Installation Verification and Troubleshooting

This chapter describes how to verify the software installation and how to troubleshoot
problems.

Run the Software Installation Test Program

The software installation test has two parts: ibtsta and ibtstb .
• ibtsta checks for a correct node /dev/gpib0 and correct access to the device
driver.
• ibtstb checks for correct DMA and interrupt operation. ibtstb requires a GPIB
analyzer and can be omitted if an analyzer is not available.
Complete the following steps to verify the software installation:
1. Run ibtsta by entering the following command:
ibtsta
2. If ibtsta completes with no errors and a bus analyzer is available, connect the bus
analyzer to the GPIB board, then run ibtstb by entering the following command:
ibtstb
If no error occurs, the NI-488.2M driver is installed correctly.

Troubleshooting Error Messages

If ibtsta fails, the program generates common error messages that appear on your
screen. These error messages explain what went wrong when you ran ibtsta and
describe how you can correct the errors. For example, the following message might
appear on your screen if you forgot to disconnect all your GPIB cables:
The fact that the ENOL error was not received when expected
indicates the possible presence of other devices on the bus.
Please disconnect ALL GPIB cables from the GPIB board,
then run this test again.
If ibtstb fails, or if the results you observe on the bus are not as described in the test,
verify that you are following the on-screen instructions correctly and run the test again.
If you are still unable to run ibtsta and/or ibtstb successfully after you have
followed the suggestions provided by the error messages, contact National Instruments
for assistance.
© National Instruments Corp. 4-1 AT-GPIB/TNT for LynxOS