Keithley 2657A User Manual

Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 7: TSP command reference
2657A-901-01 Rev. B/December 2012 7-193
smuX.makebuffer()
This function creates a reading buffer.
Type TSP-Link accessible
Affected by Where saved Default value
Function Yes
Usage
bufferVar = smuX.makebuffer(bufferSize)
bufferVar
The created reading buffer
X
Source-measure unit (SMU) channel (for example, smua.makebuffer() applies
to SMU channel A)
bufferSize
Maximum number of readings that can be stored
Details
Reading buffers can be created and allocated dynamically using this function. Use bufferSize to designate the
number of readings the buffer can store.
Dynamically allocated reading buffers can be used interchangeably with the smuX.nvbufferY buffers.
A reading buffer can be deleted by setting all references to the reading buffer equal to nil, then running the
garbage collector (see the collectgarbage() function in Standard libraries (on page 6-25)).
Example
mybuffer2 = smua.makebuffer(200)
Creates a 200 element reading buffer (mybuffer2)for
SMU channel A.
Also see
collectgarbage() in Base library functions (on page 6-25)
Remote reading buffer programming
(on page 3-10)
savebuffer()
(on page 7-156)
smuX.nvbufferY
(on page 7-210)
smuX.measure.adc
This attribute contains the analog-to-digital converter selection.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes Instrument reset
SMU reset
Recall setup
Saved setup 0 (smuX.ADC_INTEGRATE)
Usage
adc = smuX.measure.adc
smuX.measure.adc = adc
adc
The analog-to-digital (A/D) converter used for measurements; set to one of the
following:
0 or smuX.ADC_INTEGRATE: Integrating A/D converter
1 or smuX.ADC_FAST: Fast A/D converter
X
Source-measure unit (SMU) channel (for example, smua.measure.adc applies to
SMU channel A).

Keithley 2657A Specifications

General

Brand	Keithley
Model	2657A
Category	Measuring Instruments
Language	English