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Tracking generator with offset + incomplete automatic source/receiver calibration

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This commit is contained in:
Jan Käberich 2020-11-18 19:19:29 +01:00
parent 026fffd588
commit 5b771e2a86
18 changed files with 517 additions and 51 deletions
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46
Software/VNA_embedded/Application/Hardware.cpp
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@ -223,6 +223,52 @@ void HW::SetIdle() {
FPGA::Enable(FPGA::Periphery::PortSwitch, false);
}
HW::AmplitudeSettings HW::GetAmplitudeSettings(int16_t cdbm, uint64_t freq, bool applyCorrections, bool port2) {
if (applyCorrections) {
auto correction = AmplitudeCal::SourceCorrection(freq);
if (port2) {
cdbm += correction.port2;
} else {
cdbm += correction.port1;
}
}
AmplitudeSettings ret;
if(freq < BandSwitchFrequency) {
if(cdbm <= HW::LowBandMinPower) {
// can use the low power setting
ret.lowBandPower = Si5351C::DriveStrength::mA2;
cdbm -= HW::LowBandMinPower;
} else {
// needs the high power setting
ret.lowBandPower = Si5351C::DriveStrength::mA8;
cdbm -= HW::LowBandMaxPower;
}
} else {
if(cdbm <= HW::HighBandMinPower) {
// can use the low power setting
ret.highBandPower = MAX2871::Power::n4dbm;
cdbm -= HW::HighBandMinPower;
} else {
// needs the high power setting
ret.highBandPower = MAX2871::Power::p5dbm;
cdbm -= HW::HighBandMaxPower;
}
}
// calculate required attenuation
int16_t attval = -cdbm / 25;
if(attval > 127) {
attval = 127;
ret.unlevel = true;
} else if(attval < 0) {
attval = 0;
ret.unlevel = true;
} else {
ret.unlevel = false;
}
ret.attenuator = attval;
return ret;
}
void HW::fillDeviceInfo(Protocol::DeviceInfo *info, bool updateEvenWhenBusy) {
// copy constant default values
memcpy(info, &HW::Info, sizeof(HW::Info));