Agilent Technologies FS2010 Guide de l'utilisateur télécharger pdf (Page 120)

120 Agilent VISA User’s Guide

4 Programming via GPIB and VXI

If the value of VI_ATTR_DEST_INCREMENT is 1 (the

default),viMoveOut does a block write. If the

value of VI_ATTR_DEST_INCREMENT is 0, viMoveOut

does a FIFO write.

============================================= */

/* Demonstrate block read.

Read instrument id register and device type

viMoveIn16 (vi, VI_A16_SPACE, 0x00, 2,

memArray);

/* Print results */

printf (" viMoveIn16: ID Register = 0x%4X\n",

memArray[0]);

printf (" viMoveIn16: Device Type Register =

0x%4X\n", memArray[1]);

/* Demonstrate FIFO read.

First set the source increment to 0 so we will

repetitively read from the same memory

location.*/

viSetAttribute( vi, VI_ATTR_SRC_INCREMENT, 0

);

/* Do a FIFO read of the Id Register */

viMoveIn16 (vi, VI_A16_SPACE, 0x00, 2,

memArray);

/* Print results */

printf (" viMoveIn16: 1 ID Register =

0x%4X\n",

memArray[0]);

printf (" viMoveIn16: 2 ID Register =

0x%4X\n",

memArray[1]);

/* Close sessions */

viClose (vi);

viClose (defaultRM); }

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Agilent Technologies FS2010 Guide de l'utilisateur Page 120