National Instruments GPIB-SCSI-A, Руководство пользователя

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G Mode Functions Chapter 7
GPIB-SCSI-A User Manual 7-54 © National Instruments Corp.
rcnct (continued)
ibwrt (gpibscsia, "getscsi\n", 8);
/* Request the GPIB-SCSI-A to arbitrate for the
* SCSI bus.
*/
ibrd (gpibscsia, miscbuf, 100);
/* Get the response from the GPIB-SCSI-A. */
get_stat(&ibstat,&gpiberr,&scsierr,miscbuf);
/* Call a routine to connect the character
* strings representing numerical values to
* binary data.
*/
if (ibstat < 0)
/* The status would be negative if any form of
* error occurred with the GPIB or SCSI ports.
*/
processerr (ibstat)
/* If error, go and process it. */
else
{
ibwrt (gpibscsia, "selwa\n", 6);
/* Continue with the operation. At each step
* in the process, check the status as you did
* after getscsi above. Because this does not
* show anything new, it is not duplicated in
* the remainder of this example. selwa causes
* the GPIB-SCSI-A to attempt selecting a SCSI