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GPIB Spy Chapter 6
NI-488.2 User Manual for Windows 6-4 © National Instruments Corp.
Store Configuration
You can use this option to make the current GPIB Spy configuration the default GPIB
Spy configuration. If you want to set the default GPIB Spy configuration, select the
Store Configuration menu item from the Configure menu.
GPIB Spy Output Options
To Screen
You can use this option to select the number of NI-488 and NI-488.2 calls that are
displayed in GPIB Spy. By default GPIB Spy displays 100 calls. Only the most recent
information is stored so that when the number of recorded calls exceeds the limit the
oldest information is discarded. To change the number of calls displayed, select the
To Screen menu item from the Output menu. Then enter the new number and click OK
to save the change.
To File
You can use this option to specify an output file in which to save the information
currently recorded in GPIB Spy. To save the information to a file, select the To File
menu item from the Output menu. This causes the standard Windows file selection
dialog box to pop up. Select a drive, directory and file name in which to save the
information. When you click OK , the information recorded in GPIB Spy is saved to the
specified file.
Check the Update Continuously check box in the dialog box if you want the GPIB Spy
information to be saved as soon as it is recorded. The output file is opened, written, and
closed as each NI-488 or NI-488.2 call is recorded. This option is useful if you are trying
to debug a Windows application that causes the system to crash before you get an
opportunity to close GPIB Spy. Use this option only if you need to because it is likely to
slow down all Windows applications. In addition, if you are low on disk space, choosing
this option could cause you to run out of disk space. To turn off the continuous update
feature, unselect the Update Continuously check box in the file selection dialog box.
Clear Screen
This option clears the display and the information stored in GPIB Spy. You cannot
retrieve information that has been cleared.