National Instruments NI-488.2 User Manual page 7

Contents
Chapter 7
NI-488.2 Programming Techniques
Termination of Data Transfers ...................................................................................... 7-1
High-Speed Data Transfers (HS488)............................................................................. 7-2
Enabling HS488 .............................................................................................. 7-2
System Configuration Effects on HS488 ........................................................ 7-3
Waiting for GPIB Conditions........................................................................................ 7-4
Asynchronous Event Notification in Win32 NI-488.2 Applications ............................ 7-4
Calling the ibnotify Function .......................................................................... 7-4
ibnotify Programming Example...................................................................... 7-5
Writing Multithreaded Win32 NI-488.2 Applications .................................................. 7-9
Device-Level Calls and Bus Management .................................................................... 7-11
Talker/Listener Applications ......................................................................................... 7-11
Serial Polling ................................................................................................................. 7-12
Service Requests from IEEE 488 Devices ...................................................... 7-12
Service Requests from IEEE 488.2 Devices ................................................... 7-12
Automatic Serial Polling ................................................................................. 7-13
SRQ and Serial Polling with Device-Level Traditional NI-488.2 Calls......... 7-14
SRQ and Serial Polling with Multi-Device NI-488.2 Calls............................ 7-15
Parallel Polling .............................................................................................................. 7-17
Implementing a Parallel Poll........................................................................... 7-17
Appendix A
GPIB Basics
Appendix B
Status Word Conditions
Appendix C
Error Codes and Solutions
Appendix D
Windows 98/95: Troubleshooting and Common Questions
NI-488.2 User Manual for Windows
Stuck SRQ State ............................................................................... 7-13
Autopolling and Interrupts................................................................ 7-14
Example 1: Using FindRQS ............................................................. 7-16
Example 2: Using AllSpoll............................................................... 7-16
Parallel Polling with Traditional NI-488.2 Calls.............................. 7-17
Parallel Polling with Multi-Device NI-488.2 Calls .......................... 7-19
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