2651 a conversion of TSP Script for LabVIEW

Hello

I have a problem on the conversion of all TSP scripts that contain functions and appeal for the end loops. I'm new to the TSP with models of trigger scripts. I used the Script Builder (TSB) Test tool and am able to run any TSP and generate raw data, but I don't seem able to convert most of the codes in the command of LabVIEW VISA or loader LV TSP TSP and run it to generate data... I can't find any tutorial or examples how to do it.

Let's say that... Use the example of KE2651A_Fast_ADC_Usage.tsp (pulse) and I'll just focus on the portion of function CapturePulseV (pulseWidth, pulseLimit, pulseLevel, numPulses). I have seen a few examples of LV that says loadscript myscript and close on endscript. I did a lot of different approaches, and I kept getting errors in particular the print function that I am not able to generate data through LV by to read the data in the buffer to inside the instrument. Some approaches, I have had no errors but no data... Some approaches, I got error-285.

The part of the code TSP pulse that works in TSB is here (I'm not including loadscript and endscript) and what is the RIGHT way to modify the code for LabVIEW and run it and obtain data? Thank you:

function CapturePulseV(pulseLevel, pulseWidth, pulseLimit, numPulses)
    if (numPulses == nil) then numPulses = 1 end

    -- Configure the SMU
    reset()
    smua.reset()
    smua.source.func            = smua.OUTPUT_DCVOLTS
    smua.sense                  = smua.SENSE_REMOTE
    smua.source.rangev          = pulseLevel
    smua.source.levelv          = 0     -- The bias level
    smua.source.limiti          = 5     -- The DC Limit
    smua.measure.autozero       = smua.AUTOZERO_ONCE

    -- Use a measure range that is as large as the biggest
    -- possible pulse
    smua.measure.rangei         = pulseLimit
    smua.measure.rangev         = pulseLevel

    -- Select the fast ADC for measurements
    smua.measure.adc            = smua.ADC_FAST

    -- Set the time between measurements.  1us is the smallest
    smua.measure.interval       = 1e-6

    -- Set the measure count to be 1.25 times the width of the pulse
    -- to ensure we capture the entire pulse plus falling edge.
    smua.measure.count          =
                    (pulseWidth / smua.measure.interval) * 1.25

    -- Prepare the reading buffers
    smua.nvbuffer1.clear()
    smua.nvbuffer1.collecttimestamps    = 1
    smua.nvbuffer1.collectsourcevalues  = 0
    smua.nvbuffer2.clear()
    smua.nvbuffer2.collecttimestamps    = 1
    smua.nvbuffer2.collectsourcevalues  = 0
    -- Can't use source values with async measurements

    -- Configure the Pulsed Sweep setup
    -----------------------------------
    -- Timer 1 controls the pulse period
    trigger.timer[1].count          = numPulses - 1
    -- -- 1% Duty Cycle
    trigger.timer[1].delay          = pulseWidth / 0.01
    trigger.timer[1].passthrough    = true
    trigger.timer[1].stimulus       = smua.trigger.ARMED_EVENT_ID

    -- Timer 2 controls the pulse width
    trigger.timer[2].count          = 1
    trigger.timer[2].delay          = pulseWidth - 3e-6
    trigger.timer[2].passthrough    = false
    trigger.timer[2].stimulus       =
                smua.trigger.SOURCE_COMPLETE_EVENT_ID

    -- Configure SMU Trigger Model for Sweep/Pulse Output
    -----------------------------------------------------
    -- Pulses will all be the same level so set start and stop to
    -- the same value and the number of points in the sweep to 2
    smua.trigger.source.linearv(pulseLevel, pulseLevel, 2)
    smua.trigger.source.limiti      = pulseLimit
    smua.trigger.measure.action     = smua.ASYNC
    -- We want to start the measurements before the source action takes
    -- place so we must configure the ADC to operate asynchronously of
    -- the rest of the SMU trigger model actions

    -- Measure I and V during the pulse
    smua.trigger.measure.iv(smua.nvbuffer1, smua.nvbuffer2)

    -- Return the output to the bias level at the end of the pulse/sweep
    smua.trigger.endpulse.action    = smua.SOURCE_IDLE
    smua.trigger.endsweep.action    = smua.SOURCE_IDLE
    smua.trigger.count              = numPulses
    smua.trigger.arm.stimulus       = 0
    smua.trigger.source.stimulus    = trigger.timer[1].EVENT_ID
    smua.trigger.measure.stimulus   = trigger.timer[1].EVENT_ID
    smua.trigger.endpulse.stimulus  = trigger.timer[2].EVENT_ID
    smua.trigger.source.action      = smua.ENABLE

    smua.source.output              = 1
    smua.trigger.initiate()
    waitcomplete()
    smua.source.output              = 0

    PrintPulseData()
end

function PrintPulseData()
    print("Timestamp\tVoltage\tCurrent")
    for i=1, smua.nvbuffer1.n do
        print(string.format("%g\t%g\t%g",
                            smua.nvbuffer1.timestamps[i],
                            smua.nvbuffer2[i],
                            smua.nvbuffer1[i]))
    end
end

I finally solved it myself! I first create support shell, according to the documents, but the problem was with functions of scripts but I solved by introducing VISA separate, feature writing and THEN retrieve the data from the instrument directly by VISA buffer read more. I did TSP_Function Script Loader that allows simply copy/paste codes teaspoon (any * .tsp) of: TSB program or incorporated into this type of function and loader.vi, name (parameters), defined by its own pasted script then it will generate RAW files directly in the array of strings that can be broken into pieces or restructured into what you want as for the graphics, etc..

That's all I really need to do, I can do codes of tsp in LV and get the data off of it easily via the function defined. Now, this Loader.VI behaves in the same way that TSB keithley-made program I use.

Here I add Loader.vi Script TSP_Function (in LV 2011 +).

Tags: NI Software

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