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Merge pull request #824 from FuzzyCheese/dev 

hackrfinput - Change LO ppm to adjust the hardware clocks.
This commit is contained in:
Edouard Griffiths 2021-03-29 05:23:13 +02:00 committed by GitHub
parent 22b9ba23d0 295e1f52bf
commit 0b946d5dd0
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 81 additions and 20 deletions
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99
plugins/samplesource/hackrfinput/hackrfinput.cpp
View File

@ -316,19 +316,18 @@ bool HackRFInput::handleMessage(const Message& message)
}
}
void HackRFInput::setDeviceCenterFrequency(quint64 freq_hz, qint32 LOppmTenths)
void HackRFInput::setDeviceCenterFrequency(quint64 freq_hz)
{
if (!m_dev) {
return;
}
qint64 df = ((qint64)freq_hz * LOppmTenths) / 10000000LL;
hackrf_error rc = (hackrf_error) hackrf_set_freq(m_dev, static_cast<uint64_t>(freq_hz + df));
hackrf_error rc = (hackrf_error) hackrf_set_freq(m_dev, static_cast<uint64_t>(freq_hz));
if (rc != HACKRF_SUCCESS) {
qWarning("HackRFInput::setDeviceCenterFrequency: could not frequency to %llu Hz", freq_hz + df);
qWarning("HackRFInput::setDeviceCenterFrequency: could not frequency to %llu Hz", freq_hz);
} else {
qDebug("HackRFInput::setDeviceCenterFrequency: frequency set to %llu Hz", freq_hz + df);
qDebug("HackRFInput::setDeviceCenterFrequency: frequency set to %llu Hz", freq_hz);
}
}
@ -410,22 +409,84 @@ bool HackRFInput::applySettings(const HackRFInputSettings& settings, bool force)
reverseAPIKeys.append("centerFrequency");
}
if ((m_settings.m_LOppmTenths != settings.m_LOppmTenths) || force) {
reverseAPIKeys.append("LOppmTenths");
}
if ((m_settings.m_fcPos != settings.m_fcPos) || force) {
reverseAPIKeys.append("fcPos");
}
if ((m_settings.m_transverterMode != settings.m_transverterMode) || force) {
reverseAPIKeys.append("transverterMode");
}
if ((m_settings.m_transverterDeltaFrequency != settings.m_transverterDeltaFrequency) || force) {
reverseAPIKeys.append("transverterDeltaFrequency");
}
if ((m_settings.m_LOppmTenths != settings.m_LOppmTenths) || force) {
reverseAPIKeys.append("LOppmTenths");
if (m_dev != 0)
{
const uint32_t msnaRegBase = 26; // Multisynth NA config register base
const int32_t msnaFreq = 800000000; // Multisynth NA target frequency
int32_t xo = 25000000; //Crystal frequency
int32_t a; // Multisynth NA XTAL multiplier integer 32 * 25mhz = 800mhz
int32_t b; // Multisynth NA XTAL multiplier fractional numerator 0 to 1048575
int32_t c; // Multisynth NA XTAL multiplier fractional denominator 1048575 max resolution
int64_t rem;
int32_t p1, p2, p3; // raw register values
xo = xo-xo/1000000*settings.m_LOppmTenths/10; //adjust crystal freq by ppm error
a = msnaFreq/xo; //multiplier integer
rem = msnaFreq%xo; // multiplier remainder
if (rem){ //fraction mode
b = ((rem * 10485750)/xo +5) /10; //multiplier fractional numerator with rounding
c = 1048575; //multiplier fractional divisor
rc = (hackrf_error) hackrf_si5351c_write(m_dev, 22, 128); // MSNA set fractional mode
qDebug() << "HackRFInput::applySettings: si5351c MSNA set to fraction mode.";
} else { //integer mode
b = 0;
c = 1;
rc = (hackrf_error) hackrf_si5351c_write(m_dev, 22, 0); // MSNA set integer mode
qDebug() << "HackRFInput::applySettings: si5351c MSNA set to integer mode.";
}
qDebug() << "HackRFInput::applySettings: si5351c MSNA rem" << rem;
qDebug() << "HackRFInput::applySettings: si5351c MSNA xoppm" << settings.m_LOppmTenths;
qDebug() << "HackRFInput::applySettings: si5351c MSNA xo" << xo;
qDebug() << "HackRFInput::applySettings: si5351c MSNA a" << a;
qDebug() << "HackRFInput::applySettings: si5351c MSNA b" << b;
qDebug() << "HackRFInput::applySettings: si5351c MSNA c" << c;
p1 = 128*a + (128 * b/c) - 512;
p2 = (128*b) % c;
p3 = c;
if (rc==HACKRF_SUCCESS) rc = (hackrf_error) hackrf_si5351c_write(m_dev,msnaRegBase, (p3 >> 8) & 0xFF); // reg 26 MSNA_P3[15:8]
if (rc==HACKRF_SUCCESS) rc = (hackrf_error) hackrf_si5351c_write(m_dev, msnaRegBase + 1, p3 & 0xFF); // reg 27 MSNA_P3[7:0]
if (rc==HACKRF_SUCCESS) rc = (hackrf_error) hackrf_si5351c_write(m_dev, msnaRegBase + 2, (p1 >> 16) & 0x3); // reg28 bits 1:0 MSNA_P1[17:16]
if (rc==HACKRF_SUCCESS) rc = (hackrf_error) hackrf_si5351c_write(m_dev, msnaRegBase + 3, (p1 >> 8) & 0xFF); // reg 29 MSNA_P1[15:8]
if (rc==HACKRF_SUCCESS) rc = (hackrf_error) hackrf_si5351c_write(m_dev, msnaRegBase + 4, p1 & 0xFF); // reg 30 MSNA_P1[7:0]
if (rc==HACKRF_SUCCESS) rc = (hackrf_error) hackrf_si5351c_write(m_dev, msnaRegBase + 5, ((p3 & 0xF0000) >> 12) | ((p2 >> 16) & 0xF)); // bits 7:4 MSNA_P3[19:16], reg31 bits 3:0 MSNA_P2[19:16]
if (rc==HACKRF_SUCCESS) rc = (hackrf_error) hackrf_si5351c_write(m_dev, msnaRegBase + 6, (p2 >> 8) & 0xFF); // reg 32 MSNA_P2[15:8]
if (rc==HACKRF_SUCCESS) rc = (hackrf_error) hackrf_si5351c_write(m_dev, msnaRegBase + 7, p2 & 0xFF); // reg 33 MSNA_P2[7:0]
if (rc != HACKRF_SUCCESS) {
qDebug("HackRFInput::applySettings: XTAL error adjust failed: %s", hackrf_error_name(rc));
} else {
qDebug() << "HackRFInput::applySettings: si5351c MSNA registers"
<< msnaRegBase << "<-" << ((p3 >> 8) & 0xFF)
<< (msnaRegBase + 1) << "<-" << (p3 & 0xFF)
<< (msnaRegBase + 2) << "<-" << ((p1 >> 16) & 0x3)
<< (msnaRegBase + 3) << "<-" << ((p1 >> 8) & 0xFF)
<< (msnaRegBase + 4) << "<-" << (p1 & 0xFF)
<< (msnaRegBase + 5) << "<-" << (((p3 & 0xF0000) >> 12) | ((p2 >> 16) & 0xF))
<< (msnaRegBase + 6) << "<-" << ((p2 >> 8) & 0xFF)
<< (msnaRegBase + 7) << "<-" << (p2 & 0xFF);
qDebug() << "HackRFInput::applySettings: XTAL error adjusted by" << (settings.m_LOppmTenths/10.0) << "PPM." << settings.m_LOppmTenths;
}
}
}
if ((m_settings.m_fcPos != settings.m_fcPos) || force) {
reverseAPIKeys.append("fcPos");
}
if ((m_settings.m_transverterMode != settings.m_transverterMode) || force) {
reverseAPIKeys.append("transverterMode");
}
if ((m_settings.m_transverterDeltaFrequency != settings.m_transverterDeltaFrequency) || force) {
reverseAPIKeys.append("transverterDeltaFrequency");
}
if ((m_settings.m_centerFrequency != settings.m_centerFrequency) ||
(m_settings.m_devSampleRate != settings.m_devSampleRate) ||
(m_settings.m_LOppmTenths != settings.m_LOppmTenths) ||
(m_settings.m_log2Decim != settings.m_log2Decim) ||
(m_settings.m_fcPos != settings.m_fcPos) ||
(m_settings.m_transverterMode != settings.m_transverterMode) ||
@ -439,7 +500,7 @@ bool HackRFInput::applySettings(const HackRFInputSettings& settings, bool force)
settings.m_devSampleRate,
DeviceSampleSource::FrequencyShiftScheme::FSHIFT_TXSYNC,
settings.m_transverterMode);
setDeviceCenterFrequency(deviceCenterFrequency, settings.m_LOppmTenths);
setDeviceCenterFrequency(deviceCenterFrequency);
if (m_deviceAPI->getSinkBuddies().size() > 0) // forward to buddy if necessary
{

2
plugins/samplesource/hackrfinput/hackrfinput.h
View File

@ -159,7 +159,7 @@ private:
bool openDevice();
void closeDevice();
bool applySettings(const HackRFInputSettings& settings, bool force);
void setDeviceCenterFrequency(quint64 freq, qint32 LOppmTenths);
void setDeviceCenterFrequency(quint64 freq);
void webapiReverseSendSettings(QList<QString>& deviceSettingsKeys, const HackRFInputSettings& settings, bool force);
void webapiReverseSendStartStop(bool start);