Agilent Technologies 4288A, Programming Manual

Page: 58 / 289

56 Chapter 5
Starting (Triggering) Measurement and Waiting for Completion of Measurement
Waiting For Completion Of Measurement (detecting completion of
measurement)
Sample program
Example 5-1 shows a sample program to detect the completion of measurement using an
SRQ. This program is stored on the sample program disk under the filename
“srq_meas.bas.”
This program stops the trigger system, sets up SRQ, and then starts up the trigger system
once. When an SRQ of the completion of the measurement occurs, it displays a
“Measurement Complete” message and finishes.
The program is detailed below.
Line 20 Sets the GPIB address.
Lines 40 to 60 Stops the trigger system and sets the trigger mode to the internal
trigger.
Lines 80 to 90 Enables bit 4 of the operation status event register and enables bit 7 of
the status byte register.
Lines 100 to 120 Clears the status byte register and operation status event register.
Lines 140 to 150 Sets the branch destination of the SRQ interrupt and enables the SRQ
interrupt.
Lines 160 to 180 Starts up the trigger system once to start the measurement and waits
for the completion of the measurement.
Line 230 Displays “Measurement Complete” message.
Example 5-1 Detecting the completion of measurement using SRQ (srq_meas.bas)
10 DIM Buff$[9]
20 ASSIGN @Agt4288a TO 717
30 !
40 OUTPUT @Agt4288a;":INIT:CONT OFF"
50 OUTPUT @Agt4288a;":ABOR"
60 OUTPUT @Agt4288a;":TRIG:SOUR INT"
70 !
80 OUTPUT @Agt4288a;":STAT:OPER:ENAB 16"
90 OUTPUT @Agt4288a;"*SRE 128"
100 OUTPUT @Agt4288a;"*CLS"
110 OUTPUT @Agt4288a;"*OPC?"
120 ENTER @Agt4288a;Buff$
130 !
140 ON INTR 7 GOTO Meas_end
150 ENABLE INTR 7;2
160 OUTPUT @Agt4288a;":INIT"
170 PRINT "Waiting..."
180 Meas_wait: GOTO Meas_wait
190 Meas_end: OFF INTR 7
200 PRINT "Measurement Complete"
210 END