National Instruments GPIB-SCSI-A, Руководство пользователя

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Chapter 7 G Mode Functions
© National Instruments Corp. 7-25 GPIB-SCSI-A User Manual
dtout (continued)
if (state == DCR)
{
ibwrt (scsidev,"Data to be stored.",18);
/* Because the Data Channel is ready, send out
* the data.
*/
ibwrt (gpibscsia, "cmp\n",4);
/* After transferring the data and ensuring
* that the Target is in the Status phase, a
* call to cmp allows the GPIB-SCSI-A to process
* the Status and Message In phases.
*/
}
else
/* state == RDY */
{
ibwrt (gpibscsia, "cmp\n",4);
/* Because you have a box ready indication
* from the GPIB-SCSI-A, the Target went into
* the Status phase instead of a Data Out
* phase. The call to cmp allows the
* GPIB-SCSI-A to process the Status and Message
* In phases.
*/
unexpected_abort();
/* Because there was no data transferred,
* an error occurred. Perform the desired
* type of error recovery.
*/
}