Ni-488 Program Shell; Figure 3-1. General Program Shell Using Ni-488 Device Functions - National Instruments NI-488.2M Software Reference Manual

Developing Your Application

NI-488 Program Shell

Figure 3-1 is a flowchart of the steps to create your application program using
NI-488 functions. The flowchart is for device-level calls.

Figure 3-1. General Program Shell Using NI-488 Device Functions

NI-488.2M SRM for OS/2
Open Device without Knowing Device Name (ibdev)
Open Board/Device by Specifying Name (ibfind)
Boards/Devices
Yes
Make a Device-Level Call
• Send Data to Device
• Receive Data from Device
• Clear Device
• Serial Poll Device
and so on
Finished GPIB
Programming?
Yes
Close Board or Device (ibonl)
Boards/Devices?
START
or
Are All
No
Open?
(ibwrt)
(ibrd)
(ibclr)
(ibrsp)
No
Closed All No
Yes
END
3-8 © National Instruments Corp.
Chapter 3