107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
#include "Generator.hpp"
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#include "Manual.hpp"
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#include "Hardware.hpp"
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#include "max2871.hpp"
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#include "Si5351C.hpp"
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#include "AmplitudeCal.hpp"
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static constexpr uint32_t BandSwitchFrequency = 25000000;
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void Generator::Setup(Protocol::GeneratorSettings g) {
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if(g.activePort == 0) {
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// both ports disabled, no need to configure PLLs
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HW::SetMode(HW::Mode::Idle);
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return;
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}
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Protocol::ManualControl m;
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// LOs not required
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m.LO1CE = 0;
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m.LO1Frequency = 1000000000;
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m.LO1RFEN = 0;
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m.LO1RFEN = 0;
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m.LO2EN = 0;
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m.LO2Frequency = 60000000;
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m.Port1EN = 0;
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m.Port2EN = 0;
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m.RefEN = 0;
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m.Samples = 131072;
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m.WindowType = (int) FPGA::Window::None;
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switch(g.activePort) {
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case 1:
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m.AmplifierEN = 1;
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m.PortSwitch = 0;
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break;
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case 2:
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m.AmplifierEN = 1;
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m.PortSwitch = 1;
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break;
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}
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if (g.applyAmplitudeCorrection) {
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auto correction = AmplitudeCal::SourceCorrection(g.frequency);
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if (g.activePort == 1) {
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g.cdbm_level += correction.port1;
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} else {
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g.cdbm_level += correction.port2;
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}
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}
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// Select correct source
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if(g.frequency < BandSwitchFrequency) {
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m.SourceLowEN = 1;
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m.SourceLowFrequency = g.frequency;
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m.SourceHighCE = 0;
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m.SourceHighRFEN = 0;
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m.SourceHighFrequency = BandSwitchFrequency;
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m.SourceHighLowpass = (int) FPGA::LowpassFilter::M947;
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m.SourceHighPower = (int) MAX2871::Power::n4dbm;
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m.SourceHighband = false;
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if(g.cdbm_level <= HW::LowBandMinPower) {
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// can use the low power setting
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m.SourceLowPower = (int) Si5351C::DriveStrength::mA2;
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g.cdbm_level -= HW::LowBandMinPower;
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} else {
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// needs the high power setting
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m.SourceLowPower = (int) Si5351C::DriveStrength::mA8;
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g.cdbm_level -= HW::LowBandMaxPower;
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}
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m.SourceHighPower = (int) MAX2871::Power::n4dbm;
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} else {
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m.SourceLowEN = 0;
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m.SourceLowFrequency = BandSwitchFrequency;
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m.SourceHighCE = 1;
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m.SourceHighRFEN = 1;
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m.SourceHighFrequency = g.frequency;
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if(g.frequency < 900000000UL) {
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m.SourceHighLowpass = (int) FPGA::LowpassFilter::M947;
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} else if(g.frequency < 1800000000UL) {
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m.SourceHighLowpass = (int) FPGA::LowpassFilter::M1880;
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} else if(g.frequency < 3500000000UL) {
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m.SourceHighLowpass = (int) FPGA::LowpassFilter::M3500;
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} else {
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m.SourceHighLowpass = (int) FPGA::LowpassFilter::None;
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}
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m.SourceHighband = true;
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if(g.cdbm_level <= HW::HighBandMinPower) {
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// can use the low power setting
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m.SourceHighPower = (int) MAX2871::Power::n4dbm;
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g.cdbm_level -= HW::HighBandMinPower;
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} else {
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// needs the high power setting
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m.SourceHighPower = (int) MAX2871::Power::p5dbm;
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g.cdbm_level -= HW::HighBandMaxPower;
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}
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m.SourceLowPower = (int) MAX2871::Power::n4dbm;
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}
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// calculate required attenuation
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int16_t attval = -g.cdbm_level / 25;
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// TODO set some flag if attenuator limit reached?
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if(attval > 127) {
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attval = 127;
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} else if(attval < 0) {
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attval = 0;
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}
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m.attenuator = attval;
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Manual::Setup(m);
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}
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