ARB
(cant)
Clearing an ARB
Waveform
Pressing
the
PRESET
key of
the
3314A
while turning on
power
clears all non-volatile
memory. This includes ARB and non-ARB
wavefo
rm registers. To clear a particular ARB
waveform
register,
first
recall
the
desired
waveform.
Then press
the
BLUE sh
ift
and
ARB keys (equivalent to the
11
AR2"
HP-IB command). Other ARB waves are
not
affected.
To clear a
waveform,
the
3314A
deletes
vectors
one at a time at a rate
of
about
100
vectors
per second, beginning
with
the
next
to last
vector
. The cleared
waveform
is
reduced to
two
vectors. Then
it
is initialized
to
the
following
default
parameters:
..
\"
Amplitude
100mVp-p
.0.
t
0.2ms
Frequency 2.5kHz
Function Triangle
Function
Invert
OFF
Mode Free Run
Modulation
OFF
Offset
OVDC
Phase
0°
Number
of
Vectors 2
Vector
1
Vector
Height . . . . . . . . . . . . . 0
Vector Length 1
Vector
2
Vector Height 1FOO·
Vector
Length 1
Trigger Ext, / , 1V
Vector
Marker 1
• The last
vector
is
the
Return to
Start
Vector
,
which
closes
the
waveform.
Its
vector
height, displayed as
"1
FOO", is
not
programmable.
ARB
Waveforms
and
the
HP-IB
If you have numerous or complicated ARB waveforms, you
may
wish
to
use a com-
puter
proqrarnto
build
the
waveform
rather than using
the
3314A
front
panel.
At
the
end
of
the
REMOTE OPERATION section in
this
manual, there are examples
of
ARB
programs.
They
are
written
for
an -hp-
9000
Series
200/300
computer
using
the
BASIC
4.0
programming language.
47
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