public void SetState(FpgaSettings fpgaSettings)
{
this.InternalSetStateSafe(fpgaSettings.RW_Enabled, fpgaSettings.FT_Enabled, () =>
{
this.AxisSwitch.Source = (ApiSource)fpgaSettings.AS_Source;
this.SignalGenerator.FmEnabled = fpgaSettings.SG_FmEnabled;
this.SignalGenerator.ShiftCarrier = unchecked ((uint)fpgaSettings.SG_ShiftCarrier);
this.SignalGenerator.PhaseSignal = unchecked ((uint)fpgaSettings.SG_PhaseSignal);
this.SignalGenerator.PhaseCarrier = unchecked ((uint)fpgaSettings.SG_PhaseCarrier);
this.DataAcquisition.SwitchEnabled = fpgaSettings.DA_SwitchEnabled;
this.PositionTracker.LogScale = unchecked ((uint)fpgaSettings.PT_LogScale);
this.PositionTracker.LogCountExtremum = unchecked ((uint)fpgaSettings.PT_LogCountExtremum);
this.PositionTracker.ShiftExtremum = unchecked ((uint)fpgaSettings.PT_ShiftExtremum);
this.Filter.Enabled = fpgaSettings.FI_Enabled;
this.Filter.LogThrottle = unchecked ((uint)fpgaSettings.FI_LogThrottle);
this.FourierTransform.LogCountAverages = unchecked ((uint)fpgaSettings.FT_LogCountAverages);
this.FourierTransform.LogThrottle = unchecked ((uint)fpgaSettings.FT_LogThrottle);
this.RamWriter.LogLength = unchecked ((uint)fpgaSettings.RW_LogLength);
this.RamWriter.LogThrottle = unchecked ((uint)fpgaSettings.RW_LogThrottle);
});
}
public SettingsSummary(FpgaSettings fpgaSettings)
{
double referenceFrequency;
int phaseCarrierWidth;
int factor;
this.BaseSamplingFrequency = SystemParameters.CLOCK_RATE;
if (fpgaSettings.SG_FmEnabled)
{
phaseCarrierWidth = ApiInfo.Instance[ApiParameter.SG_PhaseCarrier].Size;
// Phase width of the signal's DDS compiler is 16.
this.SG_CarrierFrequency = SystemParameters.CLOCK_RATE / Math.Pow(2, phaseCarrierWidth - 16) / Math.Pow(2, fpgaSettings.SG_ShiftCarrier);
}
else
{
this.SG_CarrierFrequency = fpgaSettings.SG_PhaseCarrier / Math.Pow(2, ApiInfo.Instance[ApiParameter.SG_PhaseCarrier].Size) * SystemParameters.CLOCK_RATE;
}
this.SG_SignalFrequency = fpgaSettings.SG_PhaseSignal / Math.Pow(2, ApiInfo.Instance[ApiParameter.SG_PhaseSignal].Size) * SystemParameters.CLOCK_RATE;
this.PT_ExtremumFrequency = this.BaseSamplingFrequency / Math.Pow(2, fpgaSettings.PT_LogCountExtremum);
this.FI_SamplingFrequency = this.BaseSamplingFrequency / Math.Pow(2, fpgaSettings.FI_LogThrottle);
this.FT_SamplingFrequency = this.FI_SamplingFrequency / Math.Pow(2, fpgaSettings.FT_LogThrottle);
this.FT_FrequencyResolution = this.FT_SamplingFrequency / SystemParameters.FFT_LENGTH;
switch ((ApiSource)fpgaSettings.AS_Source)
{
case ApiSource.NoSource:
referenceFrequency = 0;
this.RW_SamplingFrequency = 0;
break;
case ApiSource.Raw:
referenceFrequency = this.BaseSamplingFrequency;
break;
case ApiSource.Position:
referenceFrequency = this.BaseSamplingFrequency;
break;
case ApiSource.Filter:
referenceFrequency = this.FI_SamplingFrequency;
break;
case ApiSource.FourierTransform:
referenceFrequency = this.FT_SamplingFrequency;
break;
default:
throw new ArgumentException();
}
this.RW_SamplingFrequency = referenceFrequency / Math.Pow(2, fpgaSettings.RW_LogThrottle);
this.RW_BufferFrequency = this.RW_SamplingFrequency / (SystemParameters.FFT_LENGTH * Math.Pow(2, fpgaSettings.FT_LogCountAverages));
//
this.Step = 0;
this.XMin = 0;
this.XMax = 0;
this.Unit = string.Empty;
switch ((ApiSource)fpgaSettings.AS_Source)
{
case ApiSource.NoSource:
break;
case ApiSource.Raw:
case ApiSource.Position:
case ApiSource.Filter:
this.Step = 1 / this.RW_SamplingFrequency;
this.XMin = 0 * this.Step;
this.XMax = (Math.Pow(2, fpgaSettings.RW_LogLength) - 1) * this.Step;
break;
case ApiSource.FourierTransform:
// df = N / f
this.Step = this.FT_SamplingFrequency / SystemParameters.FFT_LENGTH;
// XMin = -N/2 * df
this.XMin = -SystemParameters.FFT_LENGTH / 2 * this.Step;
// XMax = +(N/2 - 1) * df
this.XMax = (SystemParameters.FFT_LENGTH / 2 - 1) * this.Step;
break;
default:
throw new ArgumentException();
}
(factor, this.Unit) = this.ConvertUnit(Math.Max(Math.Abs(this.XMin), Math.Abs(this.XMax)), (ApiSource)fpgaSettings.AS_Source);
this.Step *= Math.Pow(1000, factor);
this.XMin *= Math.Pow(1000, factor);
this.XMax *= Math.Pow(1000, factor);
}
