National Instruments GPIB-PC - page 169

BASICA/QuickBASIC GPIB-PC Function Calls Section Four A
GPIB-PC User Manual 4A-94 ©National Instruments Corp.
The board IBWRTF operation terminates on any of the following events:
• All bytes sent;
• Error is detected;
• Time limit is exceeded; or
• Device Clear (DCL) or Selected Device Clear (SDC)
command is received from another device which is the CIC.
After termination, IBCNT% contains the number of bytes written,
modulo 65,536.
Device Example:
1. Write data to the device RDR% from the file Y.DAT on the
current disk drive.
100 FLNAME$ = "Y.DAT"
110 CALL IBWRTF (RDR%,FLNAME$)
Board Example:
1. Write data to the device at listen address &H2C (ASCII ,) from
the file Y.DAT on the current drive, and then unaddress the
interface board BRD0%.
100 REM Perform addressing in preparation
110 REM for board write.
120 CMD$ = "?@," ' UNL MTA LAD
130 CALL IBCMD (BRD0%,CMD$)
140 REM Perform board write.
150 FLNAME$ = "Y.DAT"
160 CALL IBWRTF (BRD0%,FLNAME$)
170 REM Unaddress the Talker and Listener.
180 CMD$ = "_?" ' UNT UNL
190 CALL IBCMD (BRD0%,CMD$)