mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-06-24 05:53:16 +00:00
Adding Local Oscillator generation for dual band operation using AD9361 FPGA source. Bug fix in FPGA flowgraph
This commit is contained in:
Javier Arribas
parent
376de5807f
commit
ec09016750
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@ -33,6 +33,7 @@
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#include "ad9361_fpga_signal_source.h"
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#include "configuration_interface.h"
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#include "GPS_L1_CA.h"
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#include "GPS_L2C.h"
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#include <signal.h>
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#include <stdio.h>
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#include <glog/logging.h>
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@ -191,6 +192,13 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(ConfigurationInterface* configura
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dump_ = configuration->property(role + ".dump", false);
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dump_filename_ = configuration->property(role + ".dump_filename", default_dump_file);
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enable_dds_lo_=configuration->property(role + ".enable_dds_lo", false);
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freq_rf_tx_hz_=configuration->property(role + ".freq_rf_tx_hz", GPS_L1_FREQ_HZ-GPS_L2_FREQ_HZ-1000);
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freq_dds_tx_hz_=configuration->property(role + ".freq_dds_tx_hz", 1000);
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scale_dds_dbfs_=configuration->property(role + ".scale_dds_dbfs", -3.0);
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phase_dds_deg_=configuration->property(role + ".phase_dds_deg", 0.0);
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tx_attenuation_db_=configuration->property(role + ".tx_attenuation_db", 0.0);
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item_size_ = sizeof(gr_complex);
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std::cout << "device address: " << uri_ << std::endl;
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@ -199,6 +207,8 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(ConfigurationInterface* configura
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// AD9361 Frontend IC device operation
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int ret;
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// Streaming devices
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struct iio_device *rx;
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@ -258,6 +268,151 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(ConfigurationInterface* configura
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iio_channel_enable(rx0_i);
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iio_channel_enable(rx0_q);
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struct iio_device *ad9361_phy;
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ad9361_phy= iio_context_find_device(ctx, "ad9361-phy");
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ret=iio_device_attr_write(ad9361_phy,"trx_rate_governor","nominal");
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if (ret < 0) {
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std::cout<<"Failed to set trx_rate_governor: "<<ret<<std::endl;
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}
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ret=iio_device_attr_write(ad9361_phy,"ensm_mode","fdd");
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if (ret < 0) {
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std::cout<<"Failed to set ensm_mode: "<<ret<<std::endl;
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}
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ret=iio_device_attr_write(ad9361_phy,"calib_mode","auto");
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if (ret < 0) {
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std::cout<<"Failed to set calib_mode: "<<ret<<std::endl;
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}
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ret=iio_device_attr_write(ad9361_phy,"in_voltage0_gain_control_mode",gain_mode_rx1_.c_str());
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if (ret < 0) {
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std::cout<<"Failed to set in_voltage0_gain_control_mode: "<<ret<<std::endl;
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}
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ret=iio_device_attr_write(ad9361_phy,"in_voltage1_gain_control_mode",gain_mode_rx2_.c_str());
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if (ret < 0) {
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std::cout<<"Failed to set in_voltage1_gain_control_mode: "<<ret<<std::endl;
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}
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ret=iio_device_attr_write_double(ad9361_phy,"in_voltage0_hardwaregain",rf_gain_rx1_);
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if (ret < 0) {
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std::cout<<"Failed to set in_voltage0_hardwaregain: "<<ret<<std::endl;
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}
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ret=iio_device_attr_write_double(ad9361_phy,"in_voltage1_hardwaregain",rf_gain_rx2_);
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if (ret < 0) {
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std::cout<<"Failed to set in_voltage1_hardwaregain: "<<ret<<std::endl;
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}
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std::cout<<"End of AD9361 RX configuration.\n";
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//LOCAL OSCILLATOR DDS GENERATOR FOR DUAL FREQUENCY OPERATION
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if (enable_dds_lo_==true)
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{
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// TX stream config
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std::cout<<"Start of AD9361 TX Local Oscillator DDS configuration\n";
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struct stream_cfg txcfg;
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txcfg.bw_hz = bandwidth_;
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txcfg.fs_hz = sample_rate_;
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txcfg.lo_hz = freq_rf_tx_hz_;
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txcfg.rfport = "A";
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//find tx device
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struct iio_device *tx;
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std::cout<<"* Acquiring AD9361 TX streaming devices\n";
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if(!get_ad9361_stream_dev(ctx, TX, &tx))
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{
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std::cout<<"No tx dev found\n";
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throw std::runtime_error("AD9361 IIO No tx dev found");
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};
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std::cout<<"* Configuring AD9361 for streaming TX\n";
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if (!cfg_ad9361_streaming_ch(ctx, &txcfg, TX, 0))
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{
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std::cout<<"TX port 0 not found\n";
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throw std::runtime_error("AD9361 IIO TX port 0 not found");
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}
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//ENABLE DDS on TX1
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//set output amplifier attenuation
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ret = iio_device_attr_write_double(ad9361_phy, "out_voltage0_hardwaregain", -tx_attenuation_db_);
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if (ret < 0) {
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std::cout<<"Failed to set out_voltage0_hardwaregain value "<<-tx_attenuation_db_<<" error "<<ret<<std::endl;
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}
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struct iio_device *dds;
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dds= iio_context_find_device(ctx, "cf-ad9361-dds-core-lpc");
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struct iio_channel *dds_channel0_I;
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dds_channel0_I = iio_device_find_channel(dds, "TX1_I_F1", true);
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struct iio_channel *dds_channel0_Q;
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dds_channel0_Q = iio_device_find_channel(dds, "TX1_Q_F1", true);
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ret = iio_channel_attr_write_bool(dds_channel0_I, "raw", true);
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if (ret < 0) {
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std::cout<<"Failed to toggle DDS: "<<ret<<std::endl;
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}
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//set frequency, scale and phase
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ret=iio_channel_attr_write_longlong(dds_channel0_I, "frequency",(long long) freq_dds_tx_hz_);
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if (ret < 0) {
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std::cout<<"Failed to set TX DDS frequency I: "<<ret<<std::endl;
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}
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ret=iio_channel_attr_write_longlong(dds_channel0_Q, "frequency",(long long) freq_dds_tx_hz_);
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if (ret < 0) {
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std::cout<<"Failed to set TX DDS frequency Q: "<<ret<<std::endl;
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}
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ret=iio_channel_attr_write_double(dds_channel0_I, "phase",0.0);
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if (ret < 0) {
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std::cout<<"Failed to set TX DDS phase I: "<<ret<<std::endl;
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}
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ret=iio_channel_attr_write_double(dds_channel0_Q, "phase",270000.0);
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if (ret < 0) {
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std::cout<<"Failed to set TX DDS phase Q: "<<ret<<std::endl;
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}
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ret=iio_channel_attr_write_double(dds_channel0_I, "scale",pow(10, scale_dds_dbfs_ / 20.0));
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if (ret < 0) {
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std::cout<<"Failed to set TX DDS scale I: "<<ret<<std::endl;
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}
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ret=iio_channel_attr_write_double(dds_channel0_Q, "scale",pow(10, scale_dds_dbfs_ / 20.0));
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if (ret < 0) {
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std::cout<<"Failed to set TX DDS scale Q: "<<ret<<std::endl;
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}
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//disable TX2
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ret = iio_device_attr_write_double(ad9361_phy, "out_voltage1_hardwaregain", -89.0);
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if (ret < 0) {
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std::cout<<"Failed to set out_voltage1_hardwaregain value "<<-89.0<<" error "<<ret<<std::endl;
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}
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struct iio_channel *dds_channel1_I;
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dds_channel1_I = iio_device_find_channel(dds, "TX2_I_F1", true);
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struct iio_channel *dds_channel1_Q;
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dds_channel1_Q = iio_device_find_channel(dds, "TX2_Q_F1", true);
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ret=iio_channel_attr_write_double(dds_channel1_I, "scale",0);
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if (ret < 0) {
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std::cout<<"Failed to set TX2 DDS scale I: "<<ret<<std::endl;
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}
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ret=iio_channel_attr_write_double(dds_channel1_Q, "scale",0);
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if (ret < 0) {
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std::cout<<"Failed to set TX2 DDS scale Q: "<<ret<<std::endl;
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}
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}
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}
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@ -270,6 +425,33 @@ Ad9361FpgaSignalSource::~Ad9361FpgaSignalSource()
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std::cout<<"* AD9361 Destroying context\n";
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if (ctx) { iio_context_destroy(ctx); }
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if (enable_dds_lo_)
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{
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struct iio_device *dds;
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dds= iio_context_find_device(ctx, "cf-ad9361-dds-core-lpc");
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struct iio_channel *dds_channel0_I;
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dds_channel0_I = iio_device_find_channel(dds, "TX1_I_F1", true);
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struct iio_channel *dds_channel0_Q;
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dds_channel0_Q = iio_device_find_channel(dds, "TX1_Q_F1", true);
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int ret;
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ret = iio_channel_attr_write_bool(dds_channel0_I, "raw", false);
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if (ret < 0) {
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std::cout<<"Failed to toggle DDS: "<<ret<<std::endl;
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}
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ret=iio_channel_attr_write_double(dds_channel0_I, "scale",0.0);
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if (ret < 0) {
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std::cout<<"Failed to set TX DDS scale I: "<<ret<<std::endl;
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}
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ret=iio_channel_attr_write_double(dds_channel0_Q, "scale",0.0);
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if (ret < 0) {
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std::cout<<"Failed to set TX DDS scale Q: "<<ret<<std::endl;
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}
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}
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}
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@ -94,6 +94,14 @@ private:
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std::string filter_file_;
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bool filter_auto_;
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//DDS configuration for LO generation for external mixer
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bool enable_dds_lo_;
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unsigned long freq_rf_tx_hz_;
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unsigned long freq_dds_tx_hz_;
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double scale_dds_dbfs_;
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double phase_dds_deg_;
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double tx_attenuation_db_;
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unsigned int in_stream_;
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unsigned int out_stream_;
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166
src/algorithms/signal_source/libs/ad9361_manager.cc
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166
src/algorithms/signal_source/libs/ad9361_manager.cc
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@ -0,0 +1,166 @@
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/*!
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* \file ad9361_manager.cc
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* \brief An Analog Devices AD9361 front-end configuration library wrapper for configure some functions via iiod link.
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* \author Javier Arribas, jarribas(at)cttc.es
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*
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* This file contains information taken from librtlsdr:
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* http://git.osmocom.org/rtl-sdr/
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* -------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2018 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
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* Satellite Systems receiver
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*
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* This file is part of GNSS-SDR.
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*
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* GNSS-SDR is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GNSS-SDR is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
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*
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* -------------------------------------------------------------------------
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*/
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#include "ad9361_manager.h"
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#include <glog/logging.h>
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#include <stdio.h> //only for snprintf
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#include <math.h>
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#include <iostream>
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/* check return value of attr_write function */
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static void errchk(int v, const char* what) {
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if (v < 0)
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{
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LOG(WARNING)<<"Error "<<v<<" writing to channel "<<what<<" value may not be supported. ";
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}
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}
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/* write attribute: long long int */
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static void wr_ch_lli(struct iio_channel *chn, const char* what, long long val)
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{
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errchk(iio_channel_attr_write_longlong(chn, what, val), what);
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}
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/* write attribute: string */
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static void wr_ch_str(struct iio_channel *chn, const char* what, const char* str)
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{
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errchk(iio_channel_attr_write(chn, what, str), what);
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}
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/* helper function generating channel names */
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static char* get_ch_name(const char* type, int id)
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{
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snprintf(tmpstr, sizeof(tmpstr), "%s%d", type, id);
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return tmpstr;
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}
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/* returns ad9361 phy device */
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static struct iio_device* get_ad9361_phy(struct iio_context *ctx)
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{
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struct iio_device *dev = iio_context_find_device(ctx, "ad9361-phy");
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return dev;
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}
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/* finds AD9361 streaming IIO devices */
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static bool get_ad9361_stream_dev(struct iio_context *ctx, enum iodev d, struct iio_device **dev)
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{
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switch (d) {
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case TX: *dev = iio_context_find_device(ctx, "cf-ad9361-dds-core-lpc"); return *dev != NULL;
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case RX: *dev = iio_context_find_device(ctx, "cf-ad9361-lpc"); return *dev != NULL;
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default: return false;
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}
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}
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/* finds AD9361 streaming IIO channels */
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static bool get_ad9361_stream_ch(struct iio_context *ctx, enum iodev d, struct iio_device *dev, int chid, struct iio_channel **chn)
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{
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*chn = iio_device_find_channel(dev, get_ch_name("voltage", chid), d == TX);
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if (!*chn)
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*chn = iio_device_find_channel(dev, get_ch_name("altvoltage", chid), d == TX);
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return *chn != NULL;
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}
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/* finds AD9361 phy IIO configuration channel with id chid */
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static bool get_phy_chan(struct iio_context *ctx, enum iodev d, int chid, struct iio_channel **chn)
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{
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switch (d) {
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case RX: *chn = iio_device_find_channel(get_ad9361_phy(ctx), get_ch_name("voltage", chid), false); return *chn != NULL;
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case TX: *chn = iio_device_find_channel(get_ad9361_phy(ctx), get_ch_name("voltage", chid), true); return *chn != NULL;
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default: return false;
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}
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}
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/* finds AD9361 local oscillator IIO configuration channels */
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static bool get_lo_chan(struct iio_context *ctx, enum iodev d, struct iio_channel **chn)
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{
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switch (d) {
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// LO chan is always output, i.e. true
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case RX: *chn = iio_device_find_channel(get_ad9361_phy(ctx), get_ch_name("altvoltage", 0), true); return *chn != NULL;
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case TX: *chn = iio_device_find_channel(get_ad9361_phy(ctx), get_ch_name("altvoltage", 1), true); return *chn != NULL;
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default: return false;
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}
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}
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/* applies streaming configuration through IIO */
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bool cfg_ad9361_streaming_ch(struct iio_context *ctx, struct stream_cfg *cfg, enum iodev type, int chid)
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{
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struct iio_channel *chn = NULL;
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// Configure phy and lo channels
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LOG(INFO)<<"* Acquiring AD9361 phy channel"<<chid;
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if (!get_phy_chan(ctx, type, chid, &chn)) { return false; }
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wr_ch_str(chn, "rf_port_select", cfg->rfport);
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wr_ch_lli(chn, "rf_bandwidth", cfg->bw_hz);
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wr_ch_lli(chn, "sampling_frequency", cfg->fs_hz);
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// Configure LO channel
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LOG(INFO)<<"* Acquiring AD9361 "<<type == TX ? "TX" : "RX";
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if (!get_lo_chan(ctx, type, &chn)) { return false; }
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wr_ch_lli(chn, "frequency", cfg->lo_hz);
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return true;
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}
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static bool set_dds_cw_tone(struct iio_device *dac1, struct iio_channel *chn, double freq_hz, double scale_dbfs, double phase_deg)
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{
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//ENABLE DDS
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int ret;
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ret = iio_channel_attr_write_bool(iio_device_find_channel(dac1, "altvoltage0", true), "raw", true);
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if (ret < 0) {
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std::cout<<"Failed to toggle DDS: "<<ret<<std::endl;
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return false;
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}
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//set frequency, scale and phase
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ret=iio_channel_attr_write_longlong(chn, "frequency",(long long) freq_hz);
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if (ret < 0) {
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std::cout<<"Failed to set TX DDS frequency: "<<ret<<std::endl;
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return false;
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}
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ret=iio_channel_attr_write_double(chn, "phase",phase_deg);
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if (ret < 0) {
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std::cout<<"Failed to set TX DDS phase: "<<ret<<std::endl;
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return false;
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}
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ret=iio_channel_attr_write_double(chn, "scale",pow(10, scale_dbfs / 20.0));
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if (ret < 0) {
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std::cout<<"Failed to set TX DDS scale: "<<ret<<std::endl;
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return false;
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}
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return true;
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}
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130
src/algorithms/signal_source/libs/ad9361_manager.h
Normal file
130
src/algorithms/signal_source/libs/ad9361_manager.h
Normal file
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@ -0,0 +1,130 @@
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|||
/*!
|
||||
* \file ad9361_manager.h
|
||||
* \brief An Analog Devices AD9361 front-end configuration library wrapper for configure some functions via iiod link.
|
||||
* \author Javier Arribas, jarribas(at)cttc.es
|
||||
*
|
||||
* This file contains information taken from librtlsdr:
|
||||
* http://git.osmocom.org/rtl-sdr/
|
||||
* -------------------------------------------------------------------------
|
||||
*
|
||||
* Copyright (C) 2010-2018 (see AUTHORS file for a list of contributors)
|
||||
*
|
||||
* GNSS-SDR is a software defined Global Navigation
|
||||
* Satellite Systems receiver
|
||||
*
|
||||
* This file is part of GNSS-SDR.
|
||||
*
|
||||
* GNSS-SDR is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GNSS-SDR is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* -------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef __AD9361_MANAGER__
|
||||
#define __AD9361_MANAGER__
|
||||
|
||||
|
||||
#ifdef __APPLE__
|
||||
#include <iio/iio.h>
|
||||
#else
|
||||
#include <iio.h>
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
/* RX is input, TX is output */
|
||||
enum iodev { RX, TX };
|
||||
|
||||
/* common RX and TX streaming params */
|
||||
struct stream_cfg {
|
||||
long long bw_hz; // Analog banwidth in Hz
|
||||
long long fs_hz; // Baseband sample rate in Hz
|
||||
long long lo_hz; // Local oscillator frequency in Hz
|
||||
const char* rfport; // Port name
|
||||
};
|
||||
|
||||
|
||||
enum dds_tone_type {
|
||||
TX1_T1_I,
|
||||
TX1_T2_I,
|
||||
TX1_T1_Q,
|
||||
TX1_T2_Q,
|
||||
TX2_T1_I,
|
||||
TX2_T2_I,
|
||||
TX2_T1_Q,
|
||||
TX2_T2_Q,
|
||||
TX3_T1_I,
|
||||
TX3_T2_I,
|
||||
TX3_T1_Q,
|
||||
TX3_T2_Q,
|
||||
TX4_T1_I,
|
||||
TX4_T2_I,
|
||||
TX4_T1_Q,
|
||||
TX4_T2_Q
|
||||
};
|
||||
|
||||
enum dds_widget_type {
|
||||
WIDGET_FREQUENCY,
|
||||
WIDGET_SCALE,
|
||||
WIDGET_PHASE
|
||||
};
|
||||
|
||||
#define DDS_DISABLED 0
|
||||
#define DDS_ONE_TONE 1
|
||||
#define DDS_TWO_TONE 2
|
||||
#define DDS_INDEPDENT 3
|
||||
#define DDS_BUFFER 4
|
||||
|
||||
|
||||
/* static scratch mem for strings */
|
||||
static char tmpstr[64];
|
||||
|
||||
/* IIO structs required for streaming */
|
||||
static struct iio_context *ctx = NULL;
|
||||
static struct iio_channel *rx0_i = NULL;
|
||||
static struct iio_channel *rx0_q = NULL;
|
||||
|
||||
/* check return value of attr_write function */
|
||||
static void errchk(int v, const char* what);
|
||||
|
||||
/* write attribute: long long int */
|
||||
static void wr_ch_lli(struct iio_channel *chn, const char* what, long long val);
|
||||
|
||||
/* write attribute: string */
|
||||
static void wr_ch_str(struct iio_channel *chn, const char* what, const char* str);
|
||||
|
||||
/* helper function generating channel names */
|
||||
static char* get_ch_name(const char* type, int id);
|
||||
|
||||
/* returns ad9361 phy device */
|
||||
static struct iio_device* get_ad9361_phy(struct iio_context *ctx);
|
||||
|
||||
/* finds AD9361 streaming IIO devices */
|
||||
static bool get_ad9361_stream_dev(struct iio_context *ctx, enum iodev d, struct iio_device **dev);
|
||||
|
||||
/* finds AD9361 streaming IIO channels */
|
||||
static bool get_ad9361_stream_ch(struct iio_context *ctx, enum iodev d, struct iio_device *dev, int chid, struct iio_channel **chn);
|
||||
|
||||
/* finds AD9361 phy IIO configuration channel with id chid */
|
||||
static bool get_phy_chan(struct iio_context *ctx, enum iodev d, int chid, struct iio_channel **chn);
|
||||
|
||||
/* finds AD9361 local oscillator IIO configuration channels */
|
||||
static bool get_lo_chan(struct iio_context *ctx, enum iodev d, struct iio_channel **chn);
|
||||
|
||||
/* applies streaming configuration through IIO */
|
||||
bool cfg_ad9361_streaming_ch(struct iio_context *ctx, struct stream_cfg *cfg, enum iodev type, int chid);
|
||||
|
||||
|
||||
static bool set_dds_cw_tone(struct iio_device *dac1, double freq_hz, double scale_dbfs, double phase_deg);
|
||||
|
||||
#endif
|
||||
|
|
@ -262,7 +262,8 @@ void GNSSFlowgraph::connect()
|
|||
for (unsigned int i = 0; i < channels_count_; i++)
|
||||
{
|
||||
|
||||
bool FPGA_enabled = configuration_->property(sig_conditioner_.at(selected_signal_conditioner_ID)->role() + ".enable_FPGA", false);
|
||||
bool FPGA_enabled = configuration_->property(sig_source_.at(0)->role() + ".enable_FPGA", false);
|
||||
|
||||
if (FPGA_enabled == false)
|
||||
{
|
||||
selected_signal_conditioner_ID = configuration_->property("Channel" + boost::lexical_cast<std::string>(i) + ".RF_channel_ID", 0);
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user