Ibstop, Ibstop -46 – Measurement Computing GPIB-488 User Manual
Page 59
Chapter 3
GPIB 488.1 Library Reference
3-46
GPIB-488
IBSTOP
Terminate an asynchronous operation.
Syntax
C
ibstop (int boarddev)
Parameters
boarddev
is an integer containing the device or board handle.
Returns
ibsta
will contain a 16-bit status word as described in Appendix B,
. If an operation
is terminated, the
ERR
bit is set.
iberr
will contain an error code, if an error occurred. If an operation is terminated, an
EABO
error is returned.
Usage Notes
If a device is specified, all unfinished asynchronous operations (read, write, or command)
associated with that device is stopped. If a GPIB Interface Board is specified, all unfinished
asynchronous operations associated with that board is stopped. Once the operation(s) have
been terminated, the application is resynchronized with the driver.
Example
This example starts a background write command and then immediately stops it.
C
int dev;
dev = ibdev (0,2,0,13,1,0);
ibwrta(dev, "datafile");
ibstop (dev);