National Instruments NI-488.2 NI-488.2 User Manual page 112

Solutions
EWIP (26)
Solutions
ERST (27)
© National Instruments Corporation
• A outside the range of 0–99 is passed in to a traditional
boardID
NI-488 board-level function or NI-488.2 routine.
• or
ibconfig ibask
a board-only configuration option, or with a board unit descriptor
and a device-only configuration option.
Do not use a device descriptor in a board function or vice-versa.
Make sure that the board index passed to the NI-488.2 call is valid.
EWIP indicates that an
unit descriptor. This error occurs when one thread within a process calls
on a given descriptor when another thread within the same process
ibwait
is already performing an
Make sure that for any given unit descriptor only one thread calls
at a time using that descriptor.
ERST results when an event notification was cancelled due to a reset of the
interface.
An call pending in the driver returns ERST in the following
ibwait
situations:
• Another thread in the same process calls
descriptor as ibwait.
• Another thread or another process issues a board-level
An Callback may be invoked with ERST in the following
ibnotify
situations:
• Another process issues a board-level
Appendix C
is called with a device unit descriptor and
call is already in progress on the specified
ibwait
using that same descriptor.
ibwait
ibonl 1
C-11
Error Codes and Solutions
ibwait
using the same unit
ibonl
ibonl 1
.
NI-488.2 User Manual
.