©
National Instruments Corporation
B-1
PC/104-GPIB for Windows 95
Appendix
B
Troubleshooting and
Common Questions
This appendix describes how to troubleshoot problems and answers
some common questions.
Troubleshooting EDVR Error Conditions
In some cases, calls to NI-488 functions or NI-488.2 routines may
return with the ERR bit set in
ibsta
and the value EDVR in
iberr
. The
value stored in
ibcntl
is useful in troubleshooting the error condition.
EDVR Error Condition with ibcntl Set to 0xE028002C (-534249428)
If a call is made with a board number that is within the range of allowed
board numbers (typically 0 to 3), but which has not been assigned to a
GPIB interface, an EDVR error condition occurs with
ibcntl
set to
0xE028002C. You can assign a board number to the PC/104-GPIB by
configuring the GPIB software and selecting the name of the
PC/104-GPIB. For information about how to configure the GPIB
software, refer to the
section of
Installation and Configuration
EDVR Error Condition with ibcntl Set to 0xE0140025 (-535560155)
If a call is made with a board number that is not within the range of
allowed board numbers (typically 0 to 3), an EDVR error condition
occurs with
ibcntl
set to 0xE0140025. Refer to the
section of Chapter 2,
Installation and Configuration
EDVR Error Condition with ibcntl Set to 0xE0140035 (-535560139)
If a call is made with a device name that is not listed in the logical
device templates that are part of the GPIB Configuration utility, an
EDVR error condition occurs with
ibcntl
set to 0xE0140035. Refer to
the
View or Modify Logical Device Templates (Optional)
section of
