Manuals / Brands / Computer Equipment / Switch / National Instruments / Computer Equipment / Switch

National Instruments GPIB-COM Section Four Running Diagnostic Tests

1 56

Download 56 pages, 334.01 Kb

© National Instruments Corporation 4-1 GPIB-COM User Manual

Section FourRunning Diagnostic Tests

The GPIB-COM Test Commands

The GPIB-COM Diagnostic Tests can be used to verify the configuration of the GPIB-COM and

its connection to a GPIB printer or plotter.

To run a GPIB-COM diagnostic test, connect a printer or plotter to the GPIB and run the program

com.exe from the GPIB-COM diagnostic test diskette. The following message will appear on the

screen:

NATIONAL INSTRUMENTS GPIB-COM DIAGNOSTIC TESTS

This program assumes the GPIB-COM is configured at base address

3F8 (COM1).

If you reconfigured your GPIB-COM you must change the address

that this program uses. To do this, enter command c from the

menu.

Enter one of the following commands:

-1 printer test

-2 plotter test

-c change COM configuration

-q quit

?

A short explanation of each command is given in the following paragraphs.

-1 printer test

Select this test to verify the configuration of the GPIB-COM when connecting it to a GPIB ASCII

printer. This test will send characters to the printer.

Entering this command returns the prompt:

Starting printer test.

Press any key to stop printing.

Contents

Main Page Page FCC/DOC Radio Frequency Interference Compliance Preface Introduction to the GPIB-COM Organization of This Manual Related Documents Abbreviations Used in This Manual Contents Page Figures Tables Section One Introduction GPIB-COM Characteristics What Your Kit Should Contain Optional Equipment Page Page Switch and Jumper Settings Base I/O Address and Interrupt Selection Talk/Listen Modes Talk/Listen Address and Special Function Selection Page Installation Special Considerations When Using the GPIB-COM filename Page Function Description Section Three GPIB-COM User Manual 3-2 National Instruments Corporation Figure 3-1 shows a block diagram of the GPIB-COM. GPIB Figure 3-1. Block Diagram of GPIB-COM GPIB-COM Components Page Section Four Running Diagnostic Tests The GPIB-COM Test Commands -1 printer test -2 plotter test -c change COM configuration -q quit Section Five Programming the GPIB-COM The GPIB-COM Registers Transmitter Holding Register Receive Buffer Register Divisor Latch Least Significant Byte (LSB) Register Divisor Latch Most Significant Byte (MSB) Register Interrupt Enable Register Page Interrupt Identification Register Line Control Register Page Modem Control Register Page Line Status Register Page Modem Status Register Page Programming the Serial Adapter Polling Method Interrupt-Driven Method The GPIB-COM Controller Function Appendix A Specifications Page Multiline Interface Messages Hex Oct Dec ASCII Msg Hex Oct Dec ASCII Msg Message Definitions Multiline Interface Messages Hex Oct Dec ASCII Msg Hex Oct Dec ASCII Msg Appendix C Operation of the GPIB History of the GPIB Types of Messages Talkers, Listeners, and Controllers System Controller and Active Controller GPIB Signals Appendix C Operation of the GPIB National Instruments Corporation C-3 GPIB-COM User Manual Figure C-1 shows the arrangement of these signals on the GPIB cable connector. Data Lines Handshake Lines NRFD (not ready for data) NDAC (not data accepted) Page Page Page Configuration Restrictions User Comment Form