public void CheckGeneration()
{
if (!Environs.Debug)
{
_generating = _rfsgSession.CheckGenerationStatus();
}
}
/// <summary>Acquires the incoming signal, trains the DPD model, applies the memory polynomial to the reference waveform, and downloads the predistorted waveform to the generator.
/// If generation is in progress when this function is called, generation will resume with the predistorted waveform.</summary>
/// <param name="specAn">Specifies the SpecAn signal to configure.</param>
/// <param name="rfsgSession">Specifies the open RFSG session to configure.</param>
/// <param name="referenceWaveform">Specifies the <see cref="Waveform"/> whose data defines the complex baseband equivalent of the RF signal applied at the input
/// port of the device under test when performing the measurement. See the RFmx help for more documention of this parameter.</param>
/// <param name="selectorString">Pass an empty string. The signal name that is passed when creating the signal configuration is used.
/// See the RFmx help for more documention of this parameter.</param>
/// <returns>Common results after the application of memory polynomial based DPD.</returns>
public static MemoryPolynomialResults PerformMemoryPolynomial(RFmxSpecAnMX specAn, NIRfsg rfsgSession, MemoryPolynomialConfiguration mpConfig,
Waveform referenceWaveform, string selectorString = "")
{
//Instantiate new waveform with reference waveform properties
MemoryPolynomialResults mpResults = new MemoryPolynomialResults()
{
PredistortedWaveform = referenceWaveform
};
mpResults.PredistortedWaveform.Data = referenceWaveform.Data.Clone(); // clone waveform so RFmx can't act on reference waveform
mpResults.PredistortedWaveform.UpdateNameAndScript(referenceWaveform.Name + "postMpDpd");
RFmxSpecAnMXDpdApplyDpdIdleDurationPresent idlePresent = referenceWaveform.IdleDurationPresent ? RFmxSpecAnMXDpdApplyDpdIdleDurationPresent.True : RFmxSpecAnMXDpdApplyDpdIdleDurationPresent.False;
RfsgGenerationStatus preDpdGenerationStatus = rfsgSession.CheckGenerationStatus();
rfsgSession.Abort(); // abort so we don't mess with the loop logic
for (int i = 0; i < mpConfig.NumberOfIterations; i++)
{
specAn.Dpd.Configuration.ConfigurePreviousDpdPolynomial(selectorString, mpResults.Polynomial);
rfsgSession.Initiate();
specAn.Initiate(selectorString, "");
specAn.WaitForMeasurementComplete(selectorString, 10.0); // wait for polynomial coefficients to be calculated
//waveform data and PAPR are overwritten in post DPD waveform
specAn.Dpd.ApplyDpd.ApplyDigitalPredistortion(selectorString, referenceWaveform.Data, idlePresent, 10.0, ref mpResults.PredistortedWaveform.Data,
out mpResults.PowerResults.WaveformTruePapr_dB, out mpResults.PowerResults.WaveformPowerOffset_dB);
//Waveform's PAPR is modified to adjust the output power of the waveform on a per waveform basis rather than changing the
//user's configured output power on the instrument
mpResults.PredistortedWaveform.PAPR_dB = mpResults.PowerResults.WaveformPowerOffset_dB + mpResults.PowerResults.WaveformTruePapr_dB;
DownloadWaveform(rfsgSession, mpResults.PredistortedWaveform); // implicit abort
ApplyWaveformAttributes(rfsgSession, mpResults.PredistortedWaveform);
specAn.Dpd.Results.FetchDpdPolynomial(selectorString, 10.0, ref mpResults.Polynomial);
}
mpResults.PowerResults.TrainingPower_dBm = rfsgSession.RF.PowerLevel;
if (preDpdGenerationStatus == RfsgGenerationStatus.InProgress)
{
rfsgSession.Initiate(); // restart generation if it was running on function call
}
return(mpResults);
}
/// <summary>Acquires the incoming signal, trains the DPD model, applies the lookup table to the reference waveform, and downloads the predistorted waveform to the generator.
/// If generation is in progress when this function is called, generation will resume with the predistorted waveform.</summary>
/// <param name="specAn">Specifies the SpecAn signal to configure.</param>
/// <param name="rfsgSession">Specifies the open RFSG session to configure.</param>
/// <param name="referenceWaveform">Specifies the <see cref="Waveform"/> whose data defines the complex baseband equivalent of the RF signal applied at the input
/// port of the device under test when performing the measurement. See the RFmx help for more documention of this parameter.</param>
/// <param name="selectorString">Pass an empty string. The signal name that is passed when creating the signal configuration is used.
/// See the RFmx help for more documention of this parameter.</param>
/// <returns>Common results after the application of lookup table based DPD.</returns>
public static LookupTableResults PerformLookupTable(RFmxSpecAnMX specAn, NIRfsg rfsgSession, Waveform referenceWaveform, string selectorString = "")
{
//Instantiate new waveform with reference waveform properties
LookupTableResults lutResults = new LookupTableResults()
{
PredistortedWaveform = referenceWaveform,
};
lutResults.PredistortedWaveform.Data = referenceWaveform.Data.Clone(); // clone waveform so RFmx can't act on reference waveform
lutResults.PredistortedWaveform.UpdateNameAndScript(referenceWaveform.Name + "postLutDpd");
RfsgGenerationStatus preDpdGenerationStatus = rfsgSession.CheckGenerationStatus();
if (preDpdGenerationStatus == RfsgGenerationStatus.Complete)
{
rfsgSession.Initiate(); // initiate if not already generating
}
specAn.Initiate(selectorString, "");
RFmxSpecAnMXDpdApplyDpdIdleDurationPresent idlePresent = referenceWaveform.IdleDurationPresent ? RFmxSpecAnMXDpdApplyDpdIdleDurationPresent.True : RFmxSpecAnMXDpdApplyDpdIdleDurationPresent.False;
specAn.WaitForMeasurementComplete(selectorString, 10.0); // wait for LUT creation to finish
//waveform data and PAPR are overwritten in post DPD waveform
specAn.Dpd.ApplyDpd.ApplyDigitalPredistortion(selectorString, referenceWaveform.Data, idlePresent, 10.0, ref lutResults.PredistortedWaveform.Data,
out lutResults.PowerResults.WaveformTruePapr_dB, out lutResults.PowerResults.WaveformPowerOffset_dB);
//Waveform's PAPR is modified to adjust the output power of the waveform on a per waveform basis rather than changing the
//user's configured output power on the instrument
lutResults.PredistortedWaveform.PAPR_dB = lutResults.PowerResults.WaveformPowerOffset_dB + lutResults.PowerResults.WaveformTruePapr_dB;
DownloadWaveform(rfsgSession, lutResults.PredistortedWaveform); // implicit call to rfsg abort
ApplyWaveformAttributes(rfsgSession, lutResults.PredistortedWaveform);
lutResults.PowerResults.TrainingPower_dBm = rfsgSession.RF.PowerLevel;
specAn.Dpd.Results.FetchLookupTable(selectorString, 10.0, ref lutResults.InputPowers_dBm, ref lutResults.ComplexGains_dB);
if (preDpdGenerationStatus == RfsgGenerationStatus.InProgress)
{
rfsgSession.Initiate(); // restart generation if it was running on function call
}
return(lutResults);
}
/// <summary>Notifies running scripts configured with <see cref="ConfigureContinuousGeneration(NIRfsg, Waveform, string)"/> or
/// <see cref="ConfigureBurstedGeneration(NIRfsg, Waveform, WaveformTimingConfiguration, PAENConfiguration, out double, out double)"/>
/// to enter the cleanup state, and then aborts generation. This function ensures that these scripts always reach a finished state before
/// aborting, so as to ensure the DUT is in the desired state at the end of generation.</summary>
/// <param name="rfsgHandle">The open RFSG session to configure.</param>
/// <param name="timeOut_ms">(Optional) The timeout to wait for generation to complete before manually aborting.</param>
public static void AbortGeneration(NIRfsg rfsgHandle, int timeOut_ms = 1000)
{
//This should trigger the generator to stop infinite generation and trigger any post
//generation commands. For the static PA enable case, this should trigger the requisite
//off command to disable the PA.
rfsgHandle.Triggers.ScriptTriggers[0].SendSoftwareEdgeTrigger();
int sleepTime_ms = 20;
int maxIterations = (int)Math.Ceiling((double)timeOut_ms / sleepTime_ms);
RfsgGenerationStatus genStatus = rfsgHandle.CheckGenerationStatus();
//Poll the generation status until it is complete or the timeout period is reached
if (genStatus == RfsgGenerationStatus.InProgress)
{
for (int i = 0; i < maxIterations; i++)
{
genStatus = rfsgHandle.CheckGenerationStatus();
if (genStatus == RfsgGenerationStatus.Complete)
{
break;
}
else
{
Thread.Sleep(sleepTime_ms);
}
}
//This will only be true if we time out
if (genStatus == RfsgGenerationStatus.InProgress)
{
//If we timeed out then we need to call an explicit abort
rfsgHandle.Abort();
throw new System.ComponentModel.WarningException("Generation did not complete in the specified timeout period, so post-script actions did not complete." +
" If using bursted generation, you may need to manually disable the PA control line." +
" Increase the timeout period or ensure that scripTrigger0 is properly configured to stop generation");
}
}
}
