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Chapter 2
Application Examples
This chapter contains nine sample applications designed to illustrate specific
GPIB concepts and techniques that can help you write your own applications.
The description of each example includes the programmer's task, a program
flowchart, and numbered steps that correspond to the numbered blocks on the
flowchart.
Use this chapter along with your distribution disk, which contains the
C source code for each of the nine examples. If you are new to GPIB
programming, you might want to study the contents and concepts of the
first sample, simple.c, before moving on to more complex examples.
•
simple.c is the source code file for Example 1. It illustrates how you can
establish communication between a host computer and a GPIB device.
•
clr_trg.c is the source code file for Example 2. It illustrates how you
can clear and trigger GPIB devices.
•
asynch.c is the source code file for Example 3. It illustrates how you can
perform non-GPIB tasks while data is being transferred over the GPIB.
•
eos.c is the source code file for Example 4. It illustrates the concept of the
end-of-string (EOS) character.
•
rqs.c is the source code file for Example 5. It illustrates how you can
communicate with GPIB devices that use the GPIB SRQ line to request
service. This sample is written by using NI-488 functions.
•
easy4882.c is the source code file for Example 6. It is an introduction to
NI-488.2 routines.
•
rqs4882.c is the source code file for Example 7. It uses NI-488.2
routines to communicate with GPIB devices that use the GPIB SRQ line to
request service.
•
ppoll.c is the source code file for Example 8. It uses NI-488.2 routines to
conduct parallel polls.
•
non_cic.c is the source code file for Example 9. It illustrates how you
can use the NI-488.2M driver in a non-Controller application.
© National Instruments Corp.
2-1
NI-488.2M SRM for OS/2
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