private void StopThreads()
{
if (USBRX != null)
{
USBRX.CurrentMode = LibRXFFT.Libraries.eTransferMode.Stopped;
}
if (PowerUpdateThread != null)
{
PowerUpdateThread.Abort();
PowerUpdateThread = null;
}
if (DemodDlg != null)
{
DemodDlg.Close();
DemodDlg = null;
}
if (Demod != null)
{
Demod.AudioInSampleSource.Close();
Demod.AudioOutShmem.Close();
Demod.Stop();
Demod = null;
}
if (USBRX != null)
{
USBRX.Close();
USBRX = null;
}
}
public virtual void CloseTuner()
{
DeviceClosed?.Invoke(this, EventArgs.Empty);
if (Connected)
{
USBRX.Tuner.CloseTuner();
USBRX.CurrentMode = eTransferMode.Stopped;
USBRX.Close();
USBRX = null;
_SampleSource.Close();
Connected = false;
}
Hide();
}
private void btnOpen_Click(object sender, EventArgs e)
{
if (USBRX == null)
{
USBRXDevice device = new USBRXDevice();
device.ShowConsole(false);
device.TunerCombination = USBRXDevice.eCombinationType.AR5000;
try
{
if (!device.Init())
{
ErrorMessage = "There was no USB-RX found on USB bus.";
return;
}
}
catch (BadImageFormatException ex)
{
ErrorMessage = "Unsupported architecture.";
return;
}
catch (Exception ex)
{
ErrorMessage = "Unhandled exception." + Environment.NewLine + e;
return;
}
USBRX = device;
FilterList.NCOFreq = USBRX.Atmel.TCXOFreq;
FilterList.UpdateFilters("Filter");
FilterList.AddFilters("..\\..\\..\\Filter");
FilterList.FilterSelected += new EventHandler(FilterList_FilterSelected);
frequencySelector1.UpperLimit = USBRX.Tuner.HighestFrequency;
frequencySelector1.LowerLimit = USBRX.Tuner.LowestFrequency;
/* bar update thread */
InSampleSource = new ShmemSampleSource("RX-Radio Reader", USBRX.ShmemChannel, 1, 0);
InSampleSource.DataFormat = ByteUtil.eSampleFormat.Direct16BitIQFixedPointLE;
PowerUpdateThread = new Thread(() =>
{
InSampleSource.SamplesPerBlock = 1024;
while (true)
{
InSampleSource.Flush();
InSampleSource.Read();
double maxValue = DBTools.MaximumDb(InSampleSource.SourceSamplesI, InSampleSource.SourceSamplesQ);
BeginInvoke(new Action(() =>
{
powerBar.Amplitude = (maxValue + 100) / 100;
powerBar.LinePosition = (maxValue + 100) / 100;
powerBar.Enabled = true;
powerBar.Invalidate();
}));
Thread.Sleep(250);
}
});
PowerUpdateThread.Start();
/* demodulator */
Demod = new AudioDemodulator();
Demod.AudioInSampleSource = new ShmemSampleSource("RX-FFT Audio Decoder", USBRX.ShmemChannel, 1, 0);
Demod.AudioInSampleSource.DataFormat = ByteUtil.eSampleFormat.Direct16BitIQFixedPointLE;
Demod.AudioOutShmem = new SharedMem(-2, 1, "RX-Radio Demodulated Audio");
lock (Demod.DemodOptions)
{
Demod.DemodOptions.SoundDevice = new DXSoundDevice(Handle);
}
Demod.Start();
/* demodulator dialog */
DemodDlg = new DemodulationDialog(Demod.DemodOptions);
DemodDlg.Show();
/* finished */
USBRX.CurrentMode = LibRXFFT.Libraries.eTransferMode.Stopped;
btnOpen.Text = "Close";
}
else
{
StopThreads();
btnOpen.Text = "Open";
}
}
public virtual bool OpenTuner()
{
/* display the wait message */
#if false
WaitDialog waitDlg = new WaitDialog();
waitDlg.Show();
waitDlg.Refresh();
#endif
USBRX = new USBRXDevice();
//USBRX.ShowConsole(true);
USBRX.TunerCombination = TunerCombination;
try
{
if (!USBRX.Init())
{
ErrorMessage = "Could not find USB-RX on USB.";
#if false
waitDlg.Close();
#endif
base.Close();
return(false);
}
}
catch (BadImageFormatException e)
{
ErrorMessage = "Unsupported architecture.";
#if false
waitDlg.Close();
#endif
base.Close();
return(false);
}
catch (Exception e)
{
ErrorMessage = "Unhandled exception." + Environment.NewLine + e;
#if false
waitDlg.Close();
#endif
base.Close();
return(false);
}
ErrorMessage = "";
FilterList.NCOFreq = USBRX.Atmel.TCXOFreq;
FilterList.UpdateFilters("Filter");
FilterList.AddFilters("..\\..\\..\\Filter");
FilterList.FilterSelected += new EventHandler(FilterList_FilterSelected);
USBRX.Tuner.SamplingRateChanged += new EventHandler(Tuner_FilterRateChanged);
USBRX.Tuner.FilterWidthChanged += new EventHandler(Tuner_FilterWidthChanged);
USBRX.Tuner.InvertedSpectrumChanged += new EventHandler(Tuner_InvertedSpectrumChanged);
USBRX.Tuner.DeviceDisappeared += new EventHandler(Tuner_DeviceDisappeared);
frequencySelector1.UpperLimit = USBRX.Tuner.HighestFrequency;
frequencySelector1.LowerLimit = USBRX.Tuner.LowestFrequency;
CurrentFrequency = USBRX.Tuner.GetFrequency();
SetFreqTextbox(CurrentFrequency);
_SampleSource = new ShmemSampleSource("USB-RX Device Control", USBRX.ShmemChannel, 1, 0);
_SampleSource.InvertedSpectrum = InvertedSpectrum;
_SampleSource.DataFormat = ByteUtil.eSampleFormat.Direct16BitIQFixedPointLE;
ToolTip ttFreq = new ToolTip();
ttFreq.SetToolTip(frequencySelector1, "Min Freq: " + FrequencyFormatter.FreqToStringAccurate(USBRX.Tuner.LowestFrequency) + Environment.NewLine + "Max Freq: " + FrequencyFormatter.FreqToStringAccurate(USBRX.Tuner.HighestFrequency));
ttFreq.AutomaticDelay = 500;
UpdateAtmelFilters();
SelectFiles(true);
Connected = true;
/* small hack to select first (widest) filter */
FilterList.FilterSelect(FilterList.FirstFilter);
/* close wait dialog and show ours */
#if false
waitDlg.Close();
#endif
Show();
radioAcqOff.Checked = true;
radioTunerInt.Checked = true;
radioAgcOff.Checked = true;
chkAtt.Checked = false;
chkPreAmp.Checked = false;
radioTunerInt_CheckedChanged(null, null);
chkAtt_CheckedChanged(null, null);
chkPreAmp_CheckedChanged(null, null);
radioAgcOff_CheckedChanged(null, null);
radioAcqBlock.Checked = true;
DeviceOpened?.Invoke(this, EventArgs.Empty);
return(true);
}
