Digitize Program - HP 54501A Programming Reference Manual

Digitize
Program
This sample program demonstrates
some
of the commands used to
digitize
a
waveform.
The
program assumes
that the
AC CAL signal from
the rear panel
of the instrument
is
connected to channel
1
through
a
10:1
probe.
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CLEAR 707
!initia1izes HP-IB
registers.
i
OUTPUT
707;":EOI
ON"
OUTPUT
707;"*RST"
OUTPUT 707;":AUTOSCALE"
WAIT 3
OUTPUT
707;":BNC
PROBE"
OUTPUT 707
OUTPUT 707
OUTPUT 707
OUTPUT 707
OUTPUT
707
OUTPUT
707
!
i
ACQUIRE:TYPE NORMAL"
CHANNELl:PROBE 10"
CHANNEL1:RANGE
1.6"
CHANNELl:OFFSET
-.4"
CHANNELl
COUPLING DC"
TIMEBASE:RANGE
1E-7"
OUTPUT 707;":WAVEFORM:SOURCE CHANNELl"
OUTPUT 707;":ACQUIRE:COMPLETE 30"
OUTPUT
707;":ACQUIRE:POINTS 32"
OUTPUT 707;":DI6ITIZE CHANNELl"
REAL
Pts.Cmp
INTEGER
J
OUTPUT 707;":BEEPER"
OUTPUT 707;":SYSTEM:DSP
'PRESS ENTER
-
CHANGES NUMBER OF POINTS DISPLAYED'"
ENTER 2
OUTPUT 707;":SYSTEM:DSP
""
Pts=32
i
'The
following lines
increase the
number
of points for
"each acquisition record
HP 54501A
Programming
!Device
clear
command.
!Turn
on EOI
!Reset instrument to
'known state
'Autoscales the
unit
!BNC
output to probe mode
!Set
display mode to normal
!Set
probe attenuation to
10:1
Set vertical
range
to 1.6
V
'Set
offset
to
-0.4
V
!Set coupling to
DC
'10
ns
per
division
'Selects channel
1 as
the source
!30X
completion criteria for
'each acquisition
!32
points for
'each acquisition
record
'Set
up
Pts
and Cmp
!as variables
'Set up J
as a
variable
•Set Pts
variable
to
32
Example Programs
B-9