Appendix B
Troubleshooting and Common Questions
PC/104-GPIB for Windows 95
B-2
©
National Instruments Corporation
EDVR Error Condition with ibcntl Set to 0xE0320029 (-533594071) or
0xE1050029 (-519765975)
If a call is made with a board number that is assigned to a PC/104-GPIB
that is unusable because of a resource conflict, an EDVR error condition
occurs with
ibcntl
set to 0xE0320029 or 0xE1050029. This error
indicates that the PC/104-GPIB is not working properly. Refer to the
GPIB Interface Not Working Properly
section later in this appendix.
EDVR Error Condition with ibcntl set to 0xE1030043 (-519897021)
This error occurs if you have enabled DOS GPIB support and attempted
to run an existing GPIB DOS application that was compiled with an
older, unsupported DOS language interface.
Troubleshooting Device Manager Problems
The Windows 95 Device Manager contains configuration information
for all of the GPIB hardware that it detects or you input information for.
To start the Windows 95 Device Manager, double-click on the System
icon under Start»Settings»Control Panel. In the System Properties
dialog box that appears, select the Device Manager tab and click on the
View devices by type button at the top of the page. Depending on the
problem, do one of the following:
• If there is no National Instruments GPIB Interfaces item and
you are certain you have a PC/104-GPIB installed, refer to the
No National Instruments GPIB Interfaces Item
appendix.
•
If the National Instruments GPIB Interfaces item exists, but the
PC/104-GPIB is not listed there, refer to the
section of this appendix.
• If the PC/104-GPIB is listed, but has a circled X or exclamation
mark (!) over its icon, refer to the
section of this appendix.
No National Instruments GPIB Interfaces Item
The National Instruments GPIB Interfaces item might be missing from
the Device Manager because you have not yet used the Add New
Hardware Wizard in the Control Panel to add the new GPIB hardware
to the system. To start the Add New Hardware Wizard, double-click on
the Add New Hardware icon under Start»Settings»Control Panel. For
