Model 2657A High Power System SourceMeter® Instrument Reference Manual
Section 3: Functions and features
2657A-901-01 Rev. B/December 2012
3-11
Reading buffer commands
The following table summarizes commands associated with the reading buffers. See
(on page 7-1) for detailed reading buffer command information.
Reading buffer commands
Command Description
Commands to save/clear readings:
smua.savebuffer(smua.nvbuffer
Y
)
Saves the reading buffer to the nonvolatile memory on the Model
2657A.
smua.nvbuffer1.clear()
Clears buffer 1.
smua.nvbuffer2.clear()
Clears buffer 2.
mybuffer = smua.makebuffer(
n
)
Creates a dynamically allocated buffer for
n
readings.
mybuffer = nil
Deletes the dynamically allocated buffer.
savebuffer(smua.nvbuffer1,"csv",
"/usb1/mybuffer.csv")
Saves the reading buffer to the USB flash drive.
Commands to store readings
smua.measure.count =
count
The number of measurements to acquire.
smua.measure.overlappedi(
rbuffer
)
Takes current measurements; stores readings in
rbuffer
.
smua.measure.overlappediv(
ibuffer,
vbuffer
)
Takes both current and voltage measurements; stores current
readings in
ibuffer
and stores voltage readings in
vbuffer
.
smua.measure.overlappedp(
rbuffer
)
Takes power measurements; stores readings in
rbuffer
.
smua.measure.overlappedr(
rbuffer
)
Takes resistance measurements; stores readings in
rbuffer
.
smua.measure.overlappedv(
rbuffer
)
Takes voltage measurements; stores readings in
rbuffer
.
smua.measure.v(
rbuffer
)
Takes voltage measurements; stores readings in
rbuffer
.
smua.measure.i(
rbuffer
)
Takes current measurements; stores readings in
rbuffer
.
smua.measure.iv(
ibuffer,
vbuffer
)
Takes both current and voltage measurements; stores current
readings in
ibuffer
and stores voltage readings in
vbuffer
.
smua.measure.r(
rbuffer
)
Takes resistance measurements; stores readings in
rbuffer
.
smua.measure.p(
rbuffer
)
Takes power measurements; stores readings in
rbuffer
.
smua.trigger.measure.v(
rbuffer
)
Configures voltage measurements to be made during a sweep
including the location where readings will be stored (
rbuffer
).
smua.trigger.measure.i(
rbuffer
)
Configures current measurements to be made during a sweep
including the location where readings will be stored (
rbuffer
).
smua.trigger.measure.r(
rbuffer
)
Configures resistance measurements to be made during a sweep
including the location where readings will be stored (
rbuffer
).
smua.trigger.measure.p(
rbuffer
)
Configures power measurements to be made during a sweep
including the location of readings where readings will be stored
(
rbuffer
).
smua.trigger.measure.iv(
ibuffer,
vbuffer
)
Configures both current and voltage measurements to be made
during a sweep including the location of where readings will be
stored; current readings will be stored in
ibuffer
and voltage
readings will be stored in
vbuffer
.
Содержание 2657A
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