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Implemented rtl-sdr ppm LO correction

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This commit is contained in:
f4exb 2015-05-09 00:54:01 +02:00
parent bce4aff21d
commit 31fb81c66a
5 changed files with 74 additions and 2 deletions

9
plugins/samplesource/rtlsdr/rtlsdrgui.cpp
View File

@ -129,6 +129,15 @@ void RTLSDRGui::on_centerFrequency_changed(quint64 value)
sendSettings();
}
void RTLSDRGui::on_ppm_valueChanged(int value)
{
if((value > 99) || (value < -99))
return;
ui->ppmText->setText(tr("%1").arg(value));
m_settings.m_loPpmCorrection = value;
sendSettings();
}
void RTLSDRGui::on_gain_valueChanged(int value)
{
if(value > (int)m_gains.size())

1
plugins/samplesource/rtlsdr/rtlsdrgui.h
View File

@ -44,6 +44,7 @@ private:
private slots:
void on_centerFrequency_changed(quint64 value);
void on_ppm_valueChanged(int value);
void on_gain_valueChanged(int value);
void on_samplerate_valueChanged(int value);
void on_checkBox_stateChanged(int state);

51
plugins/samplesource/rtlsdr/rtlsdrgui.ui
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@ -6,8 +6,8 @@
<rect>
<x>0</x>
<y>0</y>
<width>132</width>
<height>119</height>
<width>198</width>
<height>155</height>
</rect>
</property>
<property name="sizePolicy">
@ -214,6 +214,53 @@
</item>
</layout>
</item>
<item>
<widget class="Line" name="line_2">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
</widget>
</item>
<item>
<layout class="QGridLayout" name="gridLayout_1">
<property name="spacing">
<number>3</number>
</property>
<item row="0" column="1">
<widget class="QSlider" name="ppm">
<property name="minimum">
<number>-99</number>
</property>
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
</widget>
</item>
<item row="0" column="2">
<widget class="QLabel" name="ppmText">
<property name="minimumSize">
<size>
<width>40</width>
<height>0</height>
</size>
</property>
<property name="text">
<string>0</string>
</property>
<property name="alignment">
<set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
</property>
</widget>
</item>
<item row="0" column="0">
<widget class="QLabel" name="label_10">
<property name="text">
<string>ppm</string>
</property>
</widget>
</item>
</layout>
</item>
<item>
<widget class="Line" name="line">
<property name="orientation">

14
plugins/samplesource/rtlsdr/rtlsdrinput.cpp
View File

@ -35,6 +35,7 @@ void RTLSDRInput::Settings::resetToDefaults()
{
m_gain = 0;
m_samplerate = 1024000;
m_loPpmCorrection = 0;
}
QByteArray RTLSDRInput::Settings::serialize() const
@ -42,6 +43,7 @@ QByteArray RTLSDRInput::Settings::serialize() const
SimpleSerializer s(1);
s.writeS32(1, m_gain);
s.writeS32(2, m_samplerate);
s.writeS32(3, m_loPpmCorrection);
return s.final();
}
@ -57,6 +59,7 @@ bool RTLSDRInput::Settings::deserialize(const QByteArray& data)
if(d.getVersion() == 1) {
d.readS32(1, &m_gain, 0);
//d.readS32(2, &m_samplerate, 0);
d.readS32(3, &m_loPpmCorrection, 0);
return true;
} else {
resetToDefaults();
@ -231,6 +234,17 @@ bool RTLSDRInput::applySettings(const GeneralSettings& generalSettings, const Se
}
}
if((m_settings.m_loPpmCorrection != settings.m_loPpmCorrection) || force) {
if(m_dev != NULL) {
if( rtlsdr_set_freq_correction(m_dev, settings.m_loPpmCorrection) < 0)
qCritical("could not set LO ppm correction: %d", settings.m_loPpmCorrection);
else {
m_settings.m_loPpmCorrection = settings.m_loPpmCorrection;
//m_rtlSDRThread->setSamplerate(settings.m_samplerate);
}
}
}
m_generalSettings.m_centerFrequency = generalSettings.m_centerFrequency;
if(m_dev != NULL) {
if(rtlsdr_set_center_freq( m_dev, m_generalSettings.m_centerFrequency

1
plugins/samplesource/rtlsdr/rtlsdrinput.h
View File

@ -29,6 +29,7 @@ public:
struct Settings {
qint32 m_gain;
qint32 m_samplerate;
qint32 m_loPpmCorrection;
Settings();
void resetToDefaults();