summaryrefslogtreecommitdiffstats
path: root/host/examples
diff options
context:
space:
mode:
Diffstat (limited to 'host/examples')
-rw-r--r--host/examples/CMakeLists.txt50
-rw-r--r--host/examples/ascii_art_dft.hpp320
-rw-r--r--host/examples/benchmark_rx_rate.cpp160
-rw-r--r--host/examples/rx_ascii_art_dft.cpp143
-rw-r--r--host/examples/rx_samples_to_file.cpp135
-rw-r--r--host/examples/rx_samples_to_udp.cpp135
-rw-r--r--host/examples/rx_timed_samples.cpp132
-rw-r--r--host/examples/test_async_messages.cpp260
-rw-r--r--host/examples/test_pps_input.cpp86
-rw-r--r--host/examples/tx_from_file.cpp125
-rw-r--r--host/examples/tx_timed_samples.cpp115
-rw-r--r--host/examples/tx_waveforms.cpp184
12 files changed, 1845 insertions, 0 deletions
diff --git a/host/examples/CMakeLists.txt b/host/examples/CMakeLists.txt
new file mode 100644
index 000000000..ce2ca9640
--- /dev/null
+++ b/host/examples/CMakeLists.txt
@@ -0,0 +1,50 @@
+#
+# Copyright 2010 Ettus Research LLC
+#
+# This program 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.
+#
+# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+########################################################################
+# example applications
+########################################################################
+SET(example_sources
+ benchmark_rx_rate.cpp
+ rx_samples_to_file.cpp
+ rx_samples_to_udp.cpp
+ rx_timed_samples.cpp
+ test_async_messages.cpp
+ test_pps_input.cpp
+ tx_timed_samples.cpp
+ tx_waveforms.cpp
+)
+
+#for each source: build an executable and install
+FOREACH(example_source ${example_sources})
+ GET_FILENAME_COMPONENT(example_name ${example_source} NAME_WE)
+ ADD_EXECUTABLE(${example_name} ${example_source})
+ TARGET_LINK_LIBRARIES(${example_name} uhd)
+ INSTALL(TARGETS ${example_name} RUNTIME DESTINATION ${PKG_DATA_DIR}/examples)
+ENDFOREACH(example_source)
+
+########################################################################
+# ASCII Art DFT - requires curses, so this part is optional
+########################################################################
+INCLUDE(FindCurses)
+
+IF(CURSES_FOUND)
+ INCLUDE_DIRECTORIES(${CURSES_INCLUDE_DIR})
+ ADD_EXECUTABLE(rx_ascii_art_dft rx_ascii_art_dft.cpp)
+ TARGET_LINK_LIBRARIES(rx_ascii_art_dft uhd ${CURSES_LIBRARIES})
+ INSTALL(TARGETS rx_ascii_art_dft RUNTIME DESTINATION ${PKG_DATA_DIR}/examples)
+ENDIF(CURSES_FOUND)
diff --git a/host/examples/ascii_art_dft.hpp b/host/examples/ascii_art_dft.hpp
new file mode 100644
index 000000000..ee2267c2d
--- /dev/null
+++ b/host/examples/ascii_art_dft.hpp
@@ -0,0 +1,320 @@
+//
+// ASCII Art DFT Plotter - Josh Blum
+//
+
+#ifndef ASCII_ART_DFT_HPP
+#define ASCII_ART_DFT_HPP
+
+#include <string>
+#include <cstddef>
+#include <vector>
+#include <complex>
+#include <stdexcept>
+
+namespace acsii_art_dft{
+
+ //! Type produced by the log power DFT function
+ typedef std::vector<float> log_pwr_dft_type;
+
+ /*!
+ * Get a logarithmic power DFT of the input samples.
+ * Samples are expected to be in the range [-1.0, 1.0].
+ * \param samps a pointer to an array of complex samples
+ * \param nsamps the number of samples in the array
+ * \return a real range of DFT bins in units of dB
+ */
+ template <typename T> log_pwr_dft_type log_pwr_dft(
+ const std::complex<T> *samps, size_t nsamps
+ );
+
+ /*!
+ * Convert a DFT to a piroundable ascii plot.
+ * \param dft the log power dft bins
+ * \param width the frame width in characters
+ * \param height the frame height in characters
+ * \param samp_rate the sample rate in Sps
+ * \param dc_freq the DC frequency in Hz
+ * \param dyn_rng the dynamic range in dB
+ * \param ref_lvl the reference level in dB
+ * \return the plot as an ascii string
+ */
+ std::string dft_to_plot(
+ const log_pwr_dft_type &dft,
+ size_t width,
+ size_t height,
+ double samp_rate,
+ double dc_freq,
+ float dyn_rng,
+ float ref_lvl
+ );
+
+} //namespace ascii_dft
+
+/***********************************************************************
+ * Implementation includes
+ **********************************************************************/
+#include <cmath>
+#include <sstream>
+#include <algorithm>
+
+/***********************************************************************
+ * Helper functions
+ **********************************************************************/
+namespace {/*anon*/
+
+ static const double pi = double(std::acos(-1.0));
+
+ //! Round a floating-point value to the nearest integer
+ template <typename T> int iround(T val){
+ return (val > 0)? int(val + 0.5) : int(val - 0.5);
+ }
+
+ //! Pick the closest number that is nice to display
+ template <typename T> T to_clean_num(const T num){
+ if (num == 0) return 0;
+ const T pow10 = std::pow(T(10), int(std::floor(std::log10(std::abs(num)))));
+ const T norm = std::abs(num)/pow10;
+ static const int cleans[] = {1, 2, 5, 10};
+ int clean = cleans[0];
+ for (size_t i = 1; i < sizeof(cleans)/sizeof(cleans[0]); i++){
+ if (std::abs(norm - cleans[i]) < std::abs(norm - clean))
+ clean = cleans[i];
+ }
+ return ((num < 0)? -1 : 1)*clean*pow10;
+ }
+
+ //! Compute an FFT with pre-computed factors using Cooley-Tukey
+ template <typename T> std::complex<T> ct_fft_f(
+ const std::complex<T> *samps, size_t nsamps,
+ const std::complex<T> *factors,
+ size_t start = 0, size_t step = 1
+ ){
+ if (nsamps == 1) return samps[start];
+ std::complex<T> E_k = ct_fft_f(samps, nsamps/2, factors+1, start, step*2);
+ std::complex<T> O_k = ct_fft_f(samps, nsamps/2, factors+1, start+step, step*2);
+ return E_k + factors[0]*O_k;
+ }
+
+ //! Compute an FFT for a particular bin k using Cooley-Tukey
+ template <typename T> std::complex<T> ct_fft_k(
+ const std::complex<T> *samps, size_t nsamps, size_t k
+ ){
+ //pre-compute the factors to use in Cooley-Tukey
+ std::vector<std::complex<T> > factors;
+ for (size_t N = nsamps; N != 0; N /= 2){
+ factors.push_back(std::exp(std::complex<T>(0, T(-2*pi*k/N))));
+ }
+ return ct_fft_f(samps, nsamps, &factors.front());
+ }
+
+ //! Helper class to build a DFT plot frame
+ class frame_type{
+ public:
+ frame_type(size_t width, size_t height):
+ _frame(width-1, std::vector<char>(height, ' '))
+ {
+ /* NOP */
+ }
+
+ //accessors to parts of the frame
+ char &get_plot(size_t b, size_t z){return _frame.at(b+albl_w).at(z+flbl_h);}
+ char &get_albl(size_t b, size_t z){return _frame.at(b) .at(z+flbl_h);}
+ char &get_ulbl(size_t b) {return _frame.at(b) .at(flbl_h-1);}
+ char &get_flbl(size_t b) {return _frame.at(b+albl_w).at(flbl_h-1);}
+
+ //dimension accessors
+ size_t get_plot_h(void) const{return _frame.front().size() - flbl_h;}
+ size_t get_plot_w(void) const{return _frame.size() - albl_w;}
+ size_t get_albl_w(void) const{return albl_w;}
+
+ std::string to_string(void){
+ std::stringstream frame_ss;
+ for (size_t z = 0; z < _frame.front().size(); z++){
+ for (size_t b = 0; b < _frame.size(); b++){
+ frame_ss << _frame[b][_frame[b].size()-z-1];
+ }
+ frame_ss << std::endl;
+ }
+ return frame_ss.str();
+ }
+
+ private:
+ static const size_t albl_w = 6, flbl_h = 1;
+ std::vector<std::vector<char> > _frame;
+ };
+
+} //namespace /*anon*/
+
+/***********************************************************************
+ * Implementation code
+ **********************************************************************/
+namespace acsii_art_dft{
+
+ //! skip constants for amplitude and frequency labels
+ static const size_t albl_skip = 5, flbl_skip = 20;
+
+ template <typename T> log_pwr_dft_type log_pwr_dft(
+ const std::complex<T> *samps, size_t nsamps
+ ){
+ if (nsamps & (nsamps - 1))
+ throw std::runtime_error("num samps is not a power of 2");
+
+ //compute the window
+ double win_pwr = 0;
+ std::vector<std::complex<T> > win_samps;
+ for(size_t n = 0; n < nsamps; n++){
+ //double w_n = 1;
+ //double w_n = 0.54 //hamming window
+ // -0.46*std::cos(2*pi*n/(nsamps-1))
+ //;
+ double w_n = 0.35875 //blackman-harris window
+ -0.48829*std::cos(2*pi*n/(nsamps-1))
+ +0.14128*std::cos(4*pi*n/(nsamps-1))
+ -0.01168*std::cos(6*pi*n/(nsamps-1))
+ ;
+ //double w_n = 1 // flat top window
+ // -1.930*std::cos(2*pi*n/(nsamps-1))
+ // +1.290*std::cos(4*pi*n/(nsamps-1))
+ // -0.388*std::cos(6*pi*n/(nsamps-1))
+ // +0.032*std::cos(8*pi*n/(nsamps-1))
+ //;
+ win_samps.push_back(T(w_n)*samps[n]);
+ win_pwr += w_n*w_n;
+ }
+
+ //compute the log-power dft
+ log_pwr_dft_type log_pwr_dft;
+ for(size_t k = 0; k < nsamps; k++){
+ std::complex<T> dft_k = ct_fft_k(&win_samps.front(), nsamps, k);
+ log_pwr_dft.push_back(float(
+ + 20*std::log10(std::abs(dft_k))
+ - 20*std::log10(T(nsamps))
+ - 10*std::log10(win_pwr/nsamps)
+ + 3
+ ));
+ }
+
+ return log_pwr_dft;
+ }
+
+ std::string dft_to_plot(
+ const log_pwr_dft_type &dft_,
+ size_t width,
+ size_t height,
+ double samp_rate,
+ double dc_freq,
+ float dyn_rng,
+ float ref_lvl
+ ){
+ frame_type frame(width, height); //fill this frame
+
+ //re-order the dft so dc in in the center
+ const size_t num_bins = dft_.size() - 1 + dft_.size()%2; //make it odd
+ log_pwr_dft_type dft(num_bins);
+ for (size_t n = 0; n < num_bins; n++){
+ dft[n] = dft_[(n + num_bins/2)%num_bins];
+ }
+
+ //fill the plot with dft bins
+ for (size_t b = 0; b < frame.get_plot_w(); b++){
+ //indexes from the dft to grab for the plot
+ const size_t n_start = std::max(iround(double(b-0.5)*(num_bins-1)/(frame.get_plot_w()-1)), 0);
+ const size_t n_stop = std::min(iround(double(b+0.5)*(num_bins-1)/(frame.get_plot_w()-1)), int(num_bins));
+
+ //calculate val as the max across points
+ float val = dft.at(n_start);
+ for (size_t n = n_start; n < n_stop; n++) val = std::max(val, dft.at(n));
+
+ const float scaled = (val - (ref_lvl - dyn_rng))*(frame.get_plot_h()-1)/dyn_rng;
+ for (size_t z = 0; z < frame.get_plot_h(); z++){
+ static const std::string syms(".:!|");
+ if (scaled-z > 1) frame.get_plot(b, z) = syms.at(syms.size()-1);
+ else if (scaled-z > 0) frame.get_plot(b, z) = syms.at(size_t((scaled-z)*syms.size()));
+ }
+ }
+
+ //create vertical amplitude labels
+ const float db_step = to_clean_num(dyn_rng/(frame.get_plot_h()-1)*albl_skip);
+ for (
+ float db = db_step*(int((ref_lvl - dyn_rng)/db_step));
+ db <= db_step*(int(ref_lvl/db_step));
+ db += db_step
+ ){
+ const int z = iround((db - (ref_lvl - dyn_rng))*(frame.get_plot_h()-1)/dyn_rng);
+ if (z < 0 or size_t(z) >= frame.get_plot_h()) continue;
+ std::stringstream ss; ss << db; std::string lbl = ss.str();
+ for (size_t i = 0; i < lbl.size() and i < frame.get_albl_w(); i++){
+ frame.get_albl(i, z) = lbl[i];
+ }
+ }
+
+ //create vertical units label
+ std::string ulbl = "dBfs";
+ for (size_t i = 0; i < ulbl.size(); i++){
+ frame.get_ulbl(i+1) = ulbl[i];
+ }
+
+ //create horizontal frequency labels
+ const double f_step = to_clean_num(samp_rate/frame.get_plot_w()*flbl_skip);
+ for (
+ double freq = f_step*int((-samp_rate/2/f_step));
+ freq <= f_step*int((+samp_rate/2/f_step));
+ freq += f_step
+ ){
+ const int b = iround((freq + samp_rate/2)*(frame.get_plot_w()-1)/samp_rate);
+ std::stringstream ss; ss << (freq+dc_freq)/1e6 << "MHz"; std::string lbl = ss.str();
+ if (b < int(lbl.size()/2) or b + lbl.size() - lbl.size()/2 >= frame.get_plot_w()) continue;
+ for (size_t i = 0; i < lbl.size(); i++){
+ frame.get_flbl(b + i - lbl.size()/2) = lbl[i];
+ }
+ }
+
+ return frame.to_string();
+ }
+} //namespace ascii_dft
+
+#endif /*ASCII_ART_DFT_HPP*/
+
+/*
+
+//example main function to test the dft
+
+#include <iostream>
+#include <cstdlib>
+#include <curses.h>
+
+int main(void){
+ initscr();
+
+ while (true){
+ clear();
+
+ std::vector<std::complex<float> > samples;
+ for(size_t i = 0; i < 512; i++){
+ samples.push_back(std::complex<float>(
+ float(std::rand() - RAND_MAX/2)/(RAND_MAX)/4,
+ float(std::rand() - RAND_MAX/2)/(RAND_MAX)/4
+ ));
+ samples[i] += 0.5*std::sin(i*3.14/2) + 0.7;
+ }
+
+ acsii_art_dft::log_pwr_dft_type dft;
+ dft = acsii_art_dft::log_pwr_dft(&samples.front(), samples.size());
+
+ printw("%s", acsii_art_dft::dft_to_plot(
+ dft, COLS, LINES,
+ 12.5e4, 2.45e9,
+ 60, 0
+ ).c_str());
+
+ sleep(1);
+ }
+
+
+ endwin();
+ std::cout << "here\n";
+ return 0;
+}
+
+*/
+
diff --git a/host/examples/benchmark_rx_rate.cpp b/host/examples/benchmark_rx_rate.cpp
new file mode 100644
index 000000000..b189368f9
--- /dev/null
+++ b/host/examples/benchmark_rx_rate.cpp
@@ -0,0 +1,160 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// This program 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.
+//
+// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/utils/thread_priority.hpp>
+#include <uhd/utils/safe_main.hpp>
+#include <uhd/usrp/single_usrp.hpp>
+#include <boost/math/special_functions/round.hpp>
+#include <boost/program_options.hpp>
+#include <boost/format.hpp>
+#include <iostream>
+#include <complex>
+
+namespace po = boost::program_options;
+
+static inline void test_device(
+ uhd::usrp::single_usrp::sptr sdev,
+ double rx_rate_sps,
+ double duration_secs
+){
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << boost::format("Testing receive rate %f Msps (%f second run)") % (rx_rate_sps/1e6) % duration_secs << std::endl;
+
+ //allocate recv buffer and metatdata
+ uhd::rx_metadata_t md;
+ std::vector<std::complex<float> > buff(dev->get_max_recv_samps_per_packet());
+
+ //flush the buffers in the recv path
+ while(dev->recv(
+ &buff.front(), buff.size(), md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::RECV_MODE_ONE_PACKET
+ )){
+ /* NOP */
+ };
+
+ //declare status variables
+ bool got_first_packet = false;
+ size_t total_recv_packets = 0;
+ size_t total_lost_samples = 0;
+ size_t total_recv_samples = 0;
+ uhd::time_spec_t initial_time_spec;
+ uhd::time_spec_t next_expected_time_spec;
+
+ sdev->issue_stream_cmd(uhd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS);
+ do {
+ size_t num_rx_samps = dev->recv(
+ &buff.front(), buff.size(), md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::RECV_MODE_ONE_PACKET
+ );
+
+ //handle the error codes
+ switch(md.error_code){
+ case uhd::rx_metadata_t::ERROR_CODE_NONE:
+ case uhd::rx_metadata_t::ERROR_CODE_OVERFLOW:
+ break;
+
+ default:
+ std::cerr << "Unexpected error on recv, exit test..." << std::endl;
+ return;
+ }
+
+ if (not md.has_time_spec){
+ std::cerr << "Metadata missing time spec, exit test..." << std::endl;
+ return;
+ }
+
+ total_recv_samples += num_rx_samps;
+ total_recv_packets++;
+
+ if (not got_first_packet){
+ initial_time_spec = md.time_spec;
+ next_expected_time_spec = initial_time_spec;
+ got_first_packet = true;
+ }
+
+ total_lost_samples += boost::math::iround(rx_rate_sps*(md.time_spec - next_expected_time_spec).get_real_secs());
+ next_expected_time_spec = md.time_spec + uhd::time_spec_t(0, num_rx_samps, rx_rate_sps);
+
+ } while((next_expected_time_spec - initial_time_spec) < uhd::time_spec_t(duration_secs));
+ sdev->issue_stream_cmd(uhd::stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS);
+
+ //print a summary
+ std::cout << std::endl; //go to newline, recv may spew SXSYSZ...
+ std::cout << boost::format(" Received packets: %d") % total_recv_packets << std::endl;
+ std::cout << boost::format(" Received samples: %d") % total_recv_samples << std::endl;
+ std::cout << boost::format(" Lost samples: %d") % total_lost_samples << std::endl;
+ size_t packets_lost = boost::math::iround(double(total_lost_samples)/dev->get_max_recv_samps_per_packet());
+ std::cout << boost::format(" Lost packets: %d (approximate)") % packets_lost << std::endl;
+ double actual_rx_rate_sps = (total_recv_samples*rx_rate_sps)/(total_recv_samples+total_lost_samples);
+ std::cout << boost::format(" Sustained receive rate: %f Msps") % (actual_rx_rate_sps/1e6) << std::endl;
+ std::cout << std::endl << std::endl;
+}
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ double duration;
+ double only_rate;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ ("duration", po::value<double>(&duration)->default_value(10.0), "duration for each test in seconds")
+ ("rate", po::value<double>(&only_rate), "specify to perform a single test as this rate (sps)")
+ ;
+ po::variables_map vm;
+ po::store(po::parse_command_line(argc, argv, desc), vm);
+ po::notify(vm);
+
+ //print the help message
+ if (vm.count("help")){
+ std::cout << boost::format("UHD Benchmark RX Rate %s") % desc << std::endl;
+ return ~0;
+ }
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ if (not vm.count("rate")){
+ sdev->set_rx_rate(500e3); //initial rate
+ while(true){
+ double rate = sdev->get_rx_rate();
+ test_device(sdev, rate, duration);
+ sdev->set_rx_rate(rate*2); //double the rate
+ if (sdev->get_rx_rate() == rate) break;
+ }
+ }
+ else{
+ sdev->set_rx_rate(only_rate);
+ double rate = sdev->get_rx_rate();
+ test_device(sdev, rate, duration);
+ }
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
diff --git a/host/examples/rx_ascii_art_dft.cpp b/host/examples/rx_ascii_art_dft.cpp
new file mode 100644
index 000000000..5a24867b4
--- /dev/null
+++ b/host/examples/rx_ascii_art_dft.cpp
@@ -0,0 +1,143 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// This program 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.
+//
+// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/utils/thread_priority.hpp>
+#include <uhd/utils/safe_main.hpp>
+#include <uhd/usrp/single_usrp.hpp>
+#include "ascii_art_dft.hpp" //implementation
+#include <boost/program_options.hpp>
+#include <boost/thread.hpp> //gets time
+#include <boost/format.hpp>
+#include <curses.h>
+#include <iostream>
+#include <complex>
+
+namespace po = boost::program_options;
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ size_t num_bins;
+ double rate, freq, frame_rate;
+ float gain, ref_lvl, dyn_rng;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ // hardware parameters
+ ("rate", po::value<double>(&rate), "rate of incoming samples (sps)")
+ ("freq", po::value<double>(&freq)->default_value(0), "RF center frequency in Hz")
+ ("gain", po::value<float>(&gain)->default_value(0), "gain for the RF chain")
+ // display parameters
+ ("num-bins", po::value<size_t>(&num_bins)->default_value(512), "the number of bins in the DFT")
+ ("frame-rate", po::value<double>(&frame_rate)->default_value(5), "frame rate of the display (fps)")
+ ("ref-lvl", po::value<float>(&ref_lvl)->default_value(0), "reference level for the display (dB)")
+ ("dyn-rng", po::value<float>(&dyn_rng)->default_value(60), "dynamic range for the display (dB)")
+ ;
+ po::variables_map vm;
+ po::store(po::parse_command_line(argc, argv, desc), vm);
+ po::notify(vm);
+
+ //print the help message
+ if (vm.count("help") or not vm.count("rate")){
+ std::cout << boost::format("UHD RX ASCII Art DFT %s") % desc << std::endl;
+ return ~0;
+ }
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set the rx sample rate
+ std::cout << boost::format("Setting RX Rate: %f Msps...") % (rate/1e6) << std::endl;
+ sdev->set_rx_rate(rate);
+ std::cout << boost::format("Actual RX Rate: %f Msps...") % (sdev->get_rx_rate()/1e6) << std::endl << std::endl;
+
+ //set the rx center frequency
+ std::cout << boost::format("Setting RX Freq: %f Mhz...") % (freq/1e6) << std::endl;
+ sdev->set_rx_freq(freq);
+ std::cout << boost::format("Actual RX Freq: %f Mhz...") % (sdev->get_rx_freq()/1e6) << std::endl << std::endl;
+
+ //set the rx rf gain
+ std::cout << boost::format("Setting RX Gain: %f dB...") % gain << std::endl;
+ sdev->set_rx_gain(gain);
+ std::cout << boost::format("Actual RX Gain: %f dB...") % sdev->get_rx_gain() << std::endl << std::endl;
+
+ //allocate recv buffer and metatdata
+ uhd::rx_metadata_t md;
+ std::vector<std::complex<float> > buff(num_bins);
+ //------------------------------------------------------------------
+ //-- Initialize
+ //------------------------------------------------------------------
+ initscr(); //curses init
+ sdev->issue_stream_cmd(uhd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS);
+ boost::system_time next_refresh = boost::get_system_time();
+
+ //------------------------------------------------------------------
+ //-- Main loop
+ //------------------------------------------------------------------
+ while (true){
+ //read a buffer's worth of samples every iteration
+ size_t num_rx_samps = sdev->get_device()->recv(
+ &buff.front(), buff.size(), md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::RECV_MODE_FULL_BUFF
+ );
+ if (num_rx_samps != buff.size()) continue;
+
+ //check and update the display refresh condition
+ if (boost::get_system_time() < next_refresh) continue;
+ next_refresh = boost::get_system_time() + boost::posix_time::microseconds(long(1e6/frame_rate));
+
+ //calculate the dft and create the ascii art frame
+ acsii_art_dft::log_pwr_dft_type lpdft(
+ acsii_art_dft::log_pwr_dft(&buff.front(), num_rx_samps)
+ );
+ std::string frame = acsii_art_dft::dft_to_plot(
+ lpdft, COLS, LINES,
+ sdev->get_rx_rate(),
+ sdev->get_rx_freq(),
+ dyn_rng, ref_lvl
+ );
+
+ //curses screen handling: clear and print frame
+ clear();
+ printw("%s", frame.c_str());
+
+ //curses key handling: no timeout, any key to exit
+ timeout(0);
+ int ch = getch();
+ if (ch != KEY_RESIZE and ch != ERR) break;
+ }
+
+ //------------------------------------------------------------------
+ //-- Cleanup
+ //------------------------------------------------------------------
+ sdev->issue_stream_cmd(uhd::stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS);
+ endwin(); //curses done
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
diff --git a/host/examples/rx_samples_to_file.cpp b/host/examples/rx_samples_to_file.cpp
new file mode 100644
index 000000000..c80d2a6de
--- /dev/null
+++ b/host/examples/rx_samples_to_file.cpp
@@ -0,0 +1,135 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// This program 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.
+//
+// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/utils/thread_priority.hpp>
+#include <uhd/utils/safe_main.hpp>
+#include <uhd/usrp/single_usrp.hpp>
+#include <boost/program_options.hpp>
+#include <boost/format.hpp>
+#include <boost/thread.hpp>
+#include <iostream>
+#include <fstream>
+#include <complex>
+
+namespace po = boost::program_options;
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args, file;
+ size_t total_num_samps;
+ double rate, freq;
+ float gain;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ ("file", po::value<std::string>(&file)->default_value("out.16sc.dat"), "name of the file to write binary samples to")
+ ("nsamps", po::value<size_t>(&total_num_samps)->default_value(1000), "total number of samples to receive")
+ ("rate", po::value<double>(&rate)->default_value(100e6/16), "rate of incoming samples")
+ ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
+ ("gain", po::value<float>(&gain)->default_value(0), "gain for the RF chain")
+ ;
+ po::variables_map vm;
+ po::store(po::parse_command_line(argc, argv, desc), vm);
+ po::notify(vm);
+
+ //print the help message
+ if (vm.count("help")){
+ std::cout << boost::format("UHD RX to File %s") % desc << std::endl;
+ return ~0;
+ }
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set the rx sample rate
+ std::cout << boost::format("Setting RX Rate: %f Msps...") % (rate/1e6) << std::endl;
+ sdev->set_rx_rate(rate);
+ std::cout << boost::format("Actual RX Rate: %f Msps...") % (sdev->get_rx_rate()/1e6) << std::endl << std::endl;
+
+ //set the rx center frequency
+ std::cout << boost::format("Setting RX Freq: %f Mhz...") % (freq/1e6) << std::endl;
+ sdev->set_rx_freq(freq);
+ std::cout << boost::format("Actual RX Freq: %f Mhz...") % (sdev->get_rx_freq()/1e6) << std::endl << std::endl;
+
+ //set the rx rf gain
+ std::cout << boost::format("Setting RX Gain: %f dB...") % gain << std::endl;
+ sdev->set_rx_gain(gain);
+ std::cout << boost::format("Actual RX Gain: %f dB...") % sdev->get_rx_gain() << std::endl << std::endl;
+
+ boost::this_thread::sleep(boost::posix_time::seconds(1)); //allow for some setup time
+ std::cout << "LO Locked = " << sdev->get_rx_lo_locked() << std::endl;
+
+ //setup streaming
+ uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE);
+ stream_cmd.num_samps = total_num_samps;
+ stream_cmd.stream_now = true;
+ sdev->issue_stream_cmd(stream_cmd);
+
+ //loop until total number of samples reached
+ size_t num_acc_samps = 0; //number of accumulated samples
+ uhd::rx_metadata_t md;
+ std::vector<std::complex<short> > buff(dev->get_max_recv_samps_per_packet());
+ std::ofstream outfile(file.c_str(), std::ofstream::binary);
+
+ while(num_acc_samps < total_num_samps){
+ size_t num_rx_samps = dev->recv(
+ &buff.front(), buff.size(), md,
+ uhd::io_type_t::COMPLEX_INT16,
+ uhd::device::RECV_MODE_ONE_PACKET
+ );
+
+ //handle the error codes
+ switch(md.error_code){
+ case uhd::rx_metadata_t::ERROR_CODE_NONE:
+ break;
+
+ case uhd::rx_metadata_t::ERROR_CODE_TIMEOUT:
+ if (num_acc_samps == 0) continue;
+ std::cout << boost::format(
+ "Got timeout before all samples received, possible packet loss, exiting loop..."
+ ) << std::endl;
+ goto done_loop;
+
+ default:
+ std::cout << boost::format(
+ "Got error code 0x%x, exiting loop..."
+ ) % md.error_code << std::endl;
+ goto done_loop;
+ }
+
+ //write complex short integer samples to the binary file
+ outfile.write((const char*)&buff[0], num_rx_samps * sizeof(std::complex<short>));
+
+ num_acc_samps += num_rx_samps;
+ } done_loop:
+
+ outfile.close();
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
diff --git a/host/examples/rx_samples_to_udp.cpp b/host/examples/rx_samples_to_udp.cpp
new file mode 100644
index 000000000..488c95494
--- /dev/null
+++ b/host/examples/rx_samples_to_udp.cpp
@@ -0,0 +1,135 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// This program 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.
+//
+// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/utils/thread_priority.hpp>
+#include <uhd/utils/safe_main.hpp>
+#include <uhd/usrp/single_usrp.hpp>
+#include <uhd/transport/udp_simple.hpp>
+#include <boost/program_options.hpp>
+#include <boost/format.hpp>
+#include <boost/thread.hpp>
+#include <iostream>
+#include <complex>
+
+namespace po = boost::program_options;
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ size_t total_num_samps;
+ double rate, freq;
+ float gain;
+ std::string addr, port;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ ("nsamps", po::value<size_t>(&total_num_samps)->default_value(1000), "total number of samples to receive")
+ ("rate", po::value<double>(&rate)->default_value(100e6/16), "rate of incoming samples")
+ ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
+ ("gain", po::value<float>(&gain)->default_value(0), "gain for the RF chain")
+ ("port", po::value<std::string>(&port)->default_value("7124"), "server udp port")
+ ("addr", po::value<std::string>(&addr)->default_value("192.168.1.10"), "resolvable server address")
+ ;
+ po::variables_map vm;
+ po::store(po::parse_command_line(argc, argv, desc), vm);
+ po::notify(vm);
+
+ //print the help message
+ if (vm.count("help")){
+ std::cout << boost::format("UHD RX to UDP %s") % desc << std::endl;
+ return ~0;
+ }
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set the rx sample rate
+ std::cout << boost::format("Setting RX Rate: %f Msps...") % (rate/1e6) << std::endl;
+ sdev->set_rx_rate(rate);
+ std::cout << boost::format("Actual RX Rate: %f Msps...") % (sdev->get_rx_rate()/1e6) << std::endl << std::endl;
+
+ //set the rx center frequency
+ std::cout << boost::format("Setting RX Freq: %f Mhz...") % (freq/1e6) << std::endl;
+ sdev->set_rx_freq(freq);
+ std::cout << boost::format("Actual RX Freq: %f Mhz...") % (sdev->get_rx_freq()/1e6) << std::endl << std::endl;
+
+ //set the rx rf gain
+ std::cout << boost::format("Setting RX Gain: %f dB...") % gain << std::endl;
+ sdev->set_rx_gain(gain);
+ std::cout << boost::format("Actual RX Gain: %f dB...") % sdev->get_rx_gain() << std::endl << std::endl;
+
+ boost::this_thread::sleep(boost::posix_time::seconds(1)); //allow for some setup time
+ std::cout << "LO Locked = " << sdev->get_rx_lo_locked() << std::endl;
+
+ //setup streaming
+ uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE);
+ stream_cmd.num_samps = total_num_samps;
+ stream_cmd.stream_now = true;
+ sdev->issue_stream_cmd(stream_cmd);
+
+ //loop until total number of samples reached
+ size_t num_acc_samps = 0; //number of accumulated samples
+ uhd::rx_metadata_t md;
+ std::vector<std::complex<float> > buff(dev->get_max_recv_samps_per_packet());
+ uhd::transport::udp_simple::sptr udp_xport = uhd::transport::udp_simple::make_connected(addr, port);
+
+ while(num_acc_samps < total_num_samps){
+ size_t num_rx_samps = dev->recv(
+ &buff.front(), buff.size(), md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::RECV_MODE_ONE_PACKET
+ );
+
+ //handle the error codes
+ switch(md.error_code){
+ case uhd::rx_metadata_t::ERROR_CODE_NONE:
+ break;
+
+ case uhd::rx_metadata_t::ERROR_CODE_TIMEOUT:
+ if (num_acc_samps == 0) continue;
+ std::cout << boost::format(
+ "Got timeout before all samples received, possible packet loss, exiting loop..."
+ ) << std::endl;
+ goto done_loop;
+
+ default:
+ std::cout << boost::format(
+ "Got error code 0x%x, exiting loop..."
+ ) % md.error_code << std::endl;
+ goto done_loop;
+ }
+
+ //send complex single precision floating point samples over udp
+ udp_xport->send(boost::asio::buffer(buff, num_rx_samps));
+
+ num_acc_samps += num_rx_samps;
+ } done_loop:
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
diff --git a/host/examples/rx_timed_samples.cpp b/host/examples/rx_timed_samples.cpp
new file mode 100644
index 000000000..8a810811f
--- /dev/null
+++ b/host/examples/rx_timed_samples.cpp
@@ -0,0 +1,132 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// This program 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.
+//
+// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/utils/thread_priority.hpp>
+#include <uhd/utils/safe_main.hpp>
+#include <uhd/usrp/single_usrp.hpp>
+#include <boost/program_options.hpp>
+#include <boost/format.hpp>
+#include <iostream>
+#include <complex>
+
+namespace po = boost::program_options;
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ time_t seconds_in_future;
+ size_t total_num_samps;
+ double rate, freq;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ ("secs", po::value<time_t>(&seconds_in_future)->default_value(3), "number of seconds in the future to receive")
+ ("nsamps", po::value<size_t>(&total_num_samps)->default_value(1000), "total number of samples to receive")
+ ("rate", po::value<double>(&rate)->default_value(100e6/16), "rate of incoming samples")
+ ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
+ ("dilv", "specify to disable inner-loop verbose")
+ ;
+ po::variables_map vm;
+ po::store(po::parse_command_line(argc, argv, desc), vm);
+ po::notify(vm);
+
+ //print the help message
+ if (vm.count("help")){
+ std::cout << boost::format("UHD RX Timed Samples %s") % desc << std::endl;
+ return ~0;
+ }
+
+ bool verbose = vm.count("dilv") == 0;
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set the rx sample rate
+ std::cout << boost::format("Setting RX Rate: %f Msps...") % (rate/1e6) << std::endl;
+ sdev->set_rx_rate(rate);
+ std::cout << boost::format("Actual RX Rate: %f Msps...") % (sdev->get_rx_rate()/1e6) << std::endl << std::endl;
+
+ //set the rx center frequency
+ std::cout << boost::format("Setting RX Freq: %f Mhz...") % (freq/1e6) << std::endl;
+ sdev->set_rx_freq(freq);
+ std::cout << boost::format("Actual RX Freq: %f Mhz...") % (sdev->get_rx_freq()/1e6) << std::endl << std::endl;
+
+ std::cout << boost::format("Setting device timestamp to 0...") << std::endl;
+ sdev->set_time_now(uhd::time_spec_t(0.0));
+
+ //setup streaming
+ std::cout << std::endl;
+ std::cout << boost::format(
+ "Begin streaming %u samples, %d seconds in the future..."
+ ) % total_num_samps % seconds_in_future << std::endl;
+ uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE);
+ stream_cmd.num_samps = total_num_samps;
+ stream_cmd.stream_now = false;
+ stream_cmd.time_spec = uhd::time_spec_t(seconds_in_future);
+ sdev->issue_stream_cmd(stream_cmd);
+
+ //loop until total number of samples reached
+ size_t num_acc_samps = 0; //number of accumulated samples
+ while(num_acc_samps < total_num_samps){
+ uhd::rx_metadata_t md;
+ std::vector<std::complex<float> > buff(dev->get_max_recv_samps_per_packet());
+ size_t num_rx_samps = dev->recv(
+ &buff.front(), buff.size(), md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::RECV_MODE_ONE_PACKET
+ );
+
+ //handle the error codes
+ switch(md.error_code){
+ case uhd::rx_metadata_t::ERROR_CODE_NONE:
+ break;
+
+ case uhd::rx_metadata_t::ERROR_CODE_TIMEOUT:
+ if (num_acc_samps == 0) continue;
+ std::cout << boost::format(
+ "Got timeout before all samples received, possible packet loss, exiting loop..."
+ ) << std::endl;
+ goto done_loop;
+
+ default:
+ std::cout << boost::format(
+ "Got error code 0x%x, exiting loop..."
+ ) % md.error_code << std::endl;
+ goto done_loop;
+ }
+
+ if(verbose) std::cout << boost::format(
+ "Got packet: %u samples, %u full secs, %f frac secs"
+ ) % num_rx_samps % md.time_spec.get_full_secs() % md.time_spec.get_frac_secs() << std::endl;
+
+ num_acc_samps += num_rx_samps;
+ } done_loop:
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
diff --git a/host/examples/test_async_messages.cpp b/host/examples/test_async_messages.cpp
new file mode 100644
index 000000000..b1d9d56d4
--- /dev/null
+++ b/host/examples/test_async_messages.cpp
@@ -0,0 +1,260 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// This program 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.
+//
+// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/utils/thread_priority.hpp>
+#include <uhd/utils/safe_main.hpp>
+#include <uhd/utils/static.hpp>
+#include <uhd/usrp/single_usrp.hpp>
+#include <boost/assign/list_of.hpp>
+#include <boost/program_options.hpp>
+#include <boost/foreach.hpp>
+#include <boost/bind.hpp>
+#include <boost/format.hpp>
+#include <cstdlib>
+#include <complex>
+#include <iostream>
+
+namespace po = boost::program_options;
+
+/*!
+ * Test the burst ack message:
+ * Send a burst of many samples that will fragment internally.
+ * We expect to get an burst ack async message.
+ */
+bool test_burst_ack_message(uhd::usrp::single_usrp::sptr sdev){
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << "Test burst ack message... " << std::flush;
+
+ uhd::tx_metadata_t md;
+ md.start_of_burst = true;
+ md.end_of_burst = true;
+ md.has_time_spec = false;
+
+ //3 times max-sps guarantees a SOB, no burst, and EOB packet
+ std::vector<std::complex<float> > buff(dev->get_max_send_samps_per_packet()*3);
+
+ dev->send(
+ &buff.front(), buff.size(), md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::SEND_MODE_FULL_BUFF
+ );
+
+ uhd::async_metadata_t async_md;
+ if (not dev->recv_async_msg(async_md)){
+ std::cout << boost::format(
+ "failed:\n"
+ " Async message recv timed out.\n"
+ ) << std::endl;
+ return false;
+ }
+
+ switch(async_md.event_code){
+ case uhd::async_metadata_t::EVENT_CODE_BURST_ACK:
+ std::cout << boost::format(
+ "success:\n"
+ " Got event code burst ack message.\n"
+ ) << std::endl;
+ return true;
+
+ default:
+ std::cout << boost::format(
+ "failed:\n"
+ " Got unexpected event code 0x%x.\n"
+ ) % async_md.event_code << std::endl;
+ return false;
+ }
+}
+
+/*!
+ * Test the underflow message:
+ * Send a start of burst packet with no following end of burst.
+ * We expect to get an underflow(within a burst) async message.
+ */
+bool test_underflow_message(uhd::usrp::single_usrp::sptr sdev){
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << "Test underflow message... " << std::flush;
+
+ uhd::tx_metadata_t md;
+ md.start_of_burst = true;
+ md.end_of_burst = false;
+ md.has_time_spec = false;
+
+ dev->send(
+ NULL, 0, md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::SEND_MODE_FULL_BUFF
+ );
+
+ uhd::async_metadata_t async_md;
+ if (not dev->recv_async_msg(async_md, 1)){
+ std::cout << boost::format(
+ "failed:\n"
+ " Async message recv timed out.\n"
+ ) << std::endl;
+ return false;
+ }
+
+ switch(async_md.event_code){
+ case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW:
+ std::cout << boost::format(
+ "success:\n"
+ " Got event code underflow message.\n"
+ ) << std::endl;
+ return true;
+
+ default:
+ std::cout << boost::format(
+ "failed:\n"
+ " Got unexpected event code 0x%x.\n"
+ ) % async_md.event_code << std::endl;
+ return false;
+ }
+}
+
+/*!
+ * Test the time error message:
+ * Send a burst packet that occurs at a time in the past.
+ * We expect to get a time error async message.
+ */
+bool test_time_error_message(uhd::usrp::single_usrp::sptr sdev){
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << "Test time error message... " << std::flush;
+
+ uhd::tx_metadata_t md;
+ md.start_of_burst = true;
+ md.end_of_burst = true;
+ md.has_time_spec = true;
+ md.time_spec = uhd::time_spec_t(100.0); //send at 100s
+
+ sdev->set_time_now(uhd::time_spec_t(200.0)); //time at 200s
+
+ dev->send(
+ NULL, 0, md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::SEND_MODE_FULL_BUFF
+ );
+
+ uhd::async_metadata_t async_md;
+ if (not dev->recv_async_msg(async_md)){
+ std::cout << boost::format(
+ "failed:\n"
+ " Async message recv timed out.\n"
+ ) << std::endl;
+ return false;
+ }
+
+ switch(async_md.event_code){
+ case uhd::async_metadata_t::EVENT_CODE_TIME_ERROR:
+ std::cout << boost::format(
+ "success:\n"
+ " Got event code time error message.\n"
+ ) << std::endl;
+ return true;
+
+ default:
+ std::cout << boost::format(
+ "failed:\n"
+ " Got unexpected event code 0x%x.\n"
+ ) % async_md.event_code << std::endl;
+ return false;
+ }
+}
+
+void flush_async_md(uhd::usrp::single_usrp::sptr sdev){
+ uhd::device::sptr dev = sdev->get_device();
+ uhd::async_metadata_t async_md;
+ while (dev->recv_async_msg(async_md, 1.0)){}
+}
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ double rate;
+ size_t ntests;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ ("rate", po::value<double>(&rate)->default_value(1.5e6), "rate of outgoing samples")
+ ("ntests", po::value<size_t>(&ntests)->default_value(10), "number of tests to run")
+ ;
+ po::variables_map vm;
+ po::store(po::parse_command_line(argc, argv, desc), vm);
+ po::notify(vm);
+
+ //print the help message
+ if (vm.count("help")){
+ std::cout << boost::format("UHD Test Async Messages %s") % desc << std::endl;
+ return ~0;
+ }
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set the tx sample rate
+ std::cout << boost::format("Setting TX Rate: %f Msps...") % (rate/1e6) << std::endl;
+ sdev->set_tx_rate(rate);
+ std::cout << boost::format("Actual TX Rate: %f Msps...") % (sdev->get_tx_rate()/1e6) << std::endl << std::endl;
+
+ //------------------------------------------------------------------
+ // begin asyc messages test
+ //------------------------------------------------------------------
+ static const uhd::dict<std::string, boost::function<bool(uhd::usrp::single_usrp::sptr)> >
+ tests = boost::assign::map_list_of
+ ("Test Burst ACK ", &test_burst_ack_message)
+ ("Test Underflow ", &test_underflow_message)
+ ("Test Time Error", &test_time_error_message)
+ ;
+
+ //init result counts
+ uhd::dict<std::string, size_t> failures, successes;
+ BOOST_FOREACH(const std::string &key, tests.keys()){
+ failures[key] = 0;
+ successes[key] = 0;
+ }
+
+ //run the tests, pick at random
+ for (size_t n = 0; n < ntests; n++){
+ std::string key = tests.keys()[std::rand() % tests.size()];
+ bool pass = tests[key](sdev);
+ flush_async_md(sdev);
+
+ //store result
+ if (pass) successes[key]++;
+ else failures[key]++;
+ }
+
+ //print the result summary
+ std::cout << std::endl << "Summary:" << std::endl << std::endl;
+ BOOST_FOREACH(const std::string &key, tests.keys()){
+ std::cout << boost::format(
+ "%s -> %3d successes, %3d failures"
+ ) % key % successes[key] % failures[key] << std::endl;
+ }
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
diff --git a/host/examples/test_pps_input.cpp b/host/examples/test_pps_input.cpp
new file mode 100644
index 000000000..4b2bb62a3
--- /dev/null
+++ b/host/examples/test_pps_input.cpp
@@ -0,0 +1,86 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// This program 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.
+//
+// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/utils/thread_priority.hpp>
+#include <uhd/utils/safe_main.hpp>
+#include <uhd/usrp/single_usrp.hpp>
+#include <boost/program_options.hpp>
+#include <boost/format.hpp>
+#include <boost/thread.hpp>
+#include <iostream>
+#include <complex>
+
+namespace po = boost::program_options;
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ double seconds;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ ;
+ po::variables_map vm;
+ po::store(po::parse_command_line(argc, argv, desc), vm);
+ po::notify(vm);
+
+ //print the help message
+ if (vm.count("help")){
+ std::cout << boost::format("UHD Test PPS Input %s") % desc << std::endl;
+ return ~0;
+ }
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set a known time value
+ std::cout << "Set time to known value (100.0) without regard to pps:" << std::endl;
+ sdev->set_time_now(uhd::time_spec_t(100.0));
+ boost::this_thread::sleep(boost::posix_time::seconds(1));
+ std::cout << boost::format("Reading time 1 second later: %f\n") % (sdev->get_time_now().get_real_secs()) << std::endl;
+
+ //store the time to see if PPS resets it
+ seconds = sdev->get_time_now().get_real_secs();
+
+ //set a known time at next PPS, check that time increments
+ uhd::time_spec_t time_spec = uhd::time_spec_t(0.0);
+ std::cout << "Set time to known value (0.0) at next pps:" << std::endl;
+ sdev->set_time_next_pps(time_spec);
+ boost::this_thread::sleep(boost::posix_time::seconds(1));
+ std::cout << boost::format("Reading time 1 second later: %f\n") % (sdev->get_time_now().get_real_secs()) << std::endl;
+
+ //finished
+ if (seconds > sdev->get_time_now().get_real_secs()){
+ std::cout << std::endl << "Success!" << std::endl << std::endl;
+ return 0;
+ } else {
+ std::cout << std::endl << "Failed!" << std::endl << std::endl
+ << "If you expected PPS to work:" << std::endl
+ << "\tsee Device App Notes for PPS level information"
+ << std::endl << std::endl;
+ return -1;
+ }
+}
diff --git a/host/examples/tx_from_file.cpp b/host/examples/tx_from_file.cpp
new file mode 100644
index 000000000..9611cf47c
--- /dev/null
+++ b/host/examples/tx_from_file.cpp
@@ -0,0 +1,125 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// This program 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.
+//
+// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/utils/thread_priority.hpp>
+#include <uhd/utils/safe_main.hpp>
+#include <uhd/usrp/simple_usrp.hpp>
+#include <boost/program_options.hpp>
+#include <boost/format.hpp>
+#include <iostream>
+#include <complex>
+#include <fstream>
+
+namespace po = boost::program_options;
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ time_t seconds_in_future;
+ size_t total_num_samps;
+ size_t samps_per_packet;
+ double tx_rate, freq;
+ float ampl;
+ float tx_gain;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "simple uhd device address args")
+ ("secs", po::value<time_t>(&seconds_in_future)->default_value(3), "number of seconds in the future to transmit")
+ ("nsamps", po::value<size_t>(&total_num_samps)->default_value(1000), "total number of samples to transmit")
+ ("txrate", po::value<double>(&tx_rate)->default_value(100e6/16), "rate of outgoing samples")
+ ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
+ ("ampl", po::value<float>(&ampl)->default_value(float(0.3)), "amplitude of each sample")
+ ("gain", po::value<float>(&tx_gain)->default_value(float(0)), "amplitude of each sample")
+ ("dilv", "specify to disable inner-loop verbose")
+ ;
+ po::variables_map vm;
+ po::store(po::parse_command_line(argc, argv, desc), vm);
+ po::notify(vm);
+
+ //print the help message
+ if (vm.count("help")){
+ std::cout << boost::format("UHD TX Timed Samples %s") % desc << std::endl;
+ return ~0;
+ }
+
+ bool verbose = vm.count("dilv") == 0;
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::simple_usrp::sptr sdev = uhd::usrp::simple_usrp::make(args);
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set properties on the device
+ std::cout << boost::format("Setting TX Rate: %f Msps...") % (tx_rate/1e6) << std::endl;
+ sdev->set_tx_rate(tx_rate);
+ std::cout << boost::format("Actual TX Rate: %f Msps...") % (sdev->get_tx_rate()/1e6) << std::endl;
+ std::cout << boost::format("Setting device timestamp to 0...") << std::endl;
+ sdev->set_tx_freq(freq);
+ sdev->set_time_now(uhd::time_spec_t(0.0));
+
+ sdev->set_tx_gain(tx_gain);
+
+ //allocate data to send
+ std::vector<std::complex<short> > buff;
+ uhd::tx_metadata_t md;
+
+ std::cout << "Read data to send from file: in.dat" << std::endl;
+ std::ifstream infile("in.dat", std::ifstream::binary);
+ while (!infile.eof()) {
+ std::complex<short> c;
+ infile.read((char *)&c, sizeof(std::complex<short>));
+ if (!((c.real() == 0) && (c.imag() == 0))) {
+ buff.push_back(c);
+//std::cout << "C = " << c << std::endl;
+ }
+ }
+ samps_per_packet = buff.size();
+ infile.close();
+ std::cout << "Number of samples in file: " << samps_per_packet << std::endl;
+
+ //send the data in multiple packets
+ size_t num_packets = (total_num_samps+samps_per_packet-1)/samps_per_packet;
+ for (size_t i = 0; i < num_packets; i++){
+ //setup the metadata flags and time spec
+ md.start_of_burst = true; //always SOB (good for continuous streaming)
+ md.end_of_burst = (i == num_packets-1); //only last packet has EOB
+ md.has_time_spec = (i == 0); //only first packet has time
+ md.time_spec = uhd::time_spec_t(seconds_in_future);
+
+ size_t samps_to_send = std::min(total_num_samps - samps_per_packet*i, samps_per_packet);
+
+ //send the entire packet (driver fragments internally)
+ size_t num_tx_samps = dev->send(
+ &buff.front(), samps_to_send, md,
+ uhd::io_type_t::COMPLEX_INT16,
+ uhd::device::SEND_MODE_FULL_BUFF
+ );
+ if(verbose) std::cout << std::endl << boost::format("Sent %d samples") % num_tx_samps << std::endl;
+ }
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
diff --git a/host/examples/tx_timed_samples.cpp b/host/examples/tx_timed_samples.cpp
new file mode 100644
index 000000000..799da37e0
--- /dev/null
+++ b/host/examples/tx_timed_samples.cpp
@@ -0,0 +1,115 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// This program 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.
+//
+// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/utils/thread_priority.hpp>
+#include <uhd/utils/safe_main.hpp>
+#include <uhd/usrp/single_usrp.hpp>
+#include <boost/program_options.hpp>
+#include <boost/format.hpp>
+#include <iostream>
+#include <complex>
+
+namespace po = boost::program_options;
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ time_t seconds_in_future;
+ size_t total_num_samps;
+ size_t samps_per_packet;
+ double rate, freq;
+ float ampl;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ ("secs", po::value<time_t>(&seconds_in_future)->default_value(3), "number of seconds in the future to transmit")
+ ("nsamps", po::value<size_t>(&total_num_samps)->default_value(1000), "total number of samples to transmit")
+ ("spp", po::value<size_t>(&samps_per_packet)->default_value(1000), "number of samples per packet")
+ ("rate", po::value<double>(&rate)->default_value(100e6/16), "rate of outgoing samples")
+ ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
+ ("ampl", po::value<float>(&ampl)->default_value(float(0.3)), "amplitude of each sample")
+ ("dilv", "specify to disable inner-loop verbose")
+ ;
+ po::variables_map vm;
+ po::store(po::parse_command_line(argc, argv, desc), vm);
+ po::notify(vm);
+
+ //print the help message
+ if (vm.count("help")){
+ std::cout << boost::format("UHD TX Timed Samples %s") % desc << std::endl;
+ return ~0;
+ }
+
+ bool verbose = vm.count("dilv") == 0;
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set the tx sample rate
+ std::cout << boost::format("Setting TX Rate: %f Msps...") % (rate/1e6) << std::endl;
+ sdev->set_tx_rate(rate);
+ std::cout << boost::format("Actual TX Rate: %f Msps...") % (sdev->get_tx_rate()/1e6) << std::endl << std::endl;
+
+ //set the tx center frequency
+ std::cout << boost::format("Setting TX Freq: %f Mhz...") % (freq/1e6) << std::endl;
+ sdev->set_tx_freq(freq);
+ std::cout << boost::format("Actual TX Freq: %f Mhz...") % (sdev->get_tx_freq()/1e6) << std::endl << std::endl;
+
+ std::cout << boost::format("Setting device timestamp to 0...") << std::endl;
+ sdev->set_time_now(uhd::time_spec_t(0.0));
+
+ //allocate data to send
+ std::vector<std::complex<float> > buff(samps_per_packet, std::complex<float>(ampl, ampl));
+
+ //send the data in multiple packets
+ size_t num_packets = (total_num_samps+samps_per_packet-1)/samps_per_packet;
+ for (size_t i = 0; i < num_packets; i++){
+ //setup the metadata flags and time spec
+ uhd::tx_metadata_t md;
+ md.start_of_burst = true; //always SOB (good for continuous streaming)
+ md.end_of_burst = (i == num_packets-1); //only last packet has EOB
+ md.has_time_spec = (i == 0); //only first packet has time
+ md.time_spec = uhd::time_spec_t(seconds_in_future);
+
+ size_t samps_to_send = std::min(total_num_samps - samps_per_packet*i, samps_per_packet);
+
+ //send the entire packet (driver fragments internally)
+ size_t num_tx_samps = dev->send(
+ &buff.front(), samps_to_send, md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::SEND_MODE_FULL_BUFF,
+ //send will backup into the host this many seconds before sending:
+ seconds_in_future + 0.1 //timeout (delay before transmit + padding)
+ );
+ if (num_tx_samps < samps_to_send) std::cout << "Send timeout..." << std::endl;
+ if(verbose) std::cout << std::endl << boost::format("Sent %d samples") % num_tx_samps << std::endl;
+ }
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
diff --git a/host/examples/tx_waveforms.cpp b/host/examples/tx_waveforms.cpp
new file mode 100644
index 000000000..50982cf88
--- /dev/null
+++ b/host/examples/tx_waveforms.cpp
@@ -0,0 +1,184 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// This program 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.
+//
+// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/utils/thread_priority.hpp>
+#include <uhd/utils/safe_main.hpp>
+#include <uhd/utils/static.hpp>
+#include <uhd/usrp/single_usrp.hpp>
+#include <boost/program_options.hpp>
+#include <boost/thread/thread_time.hpp> //system time
+#include <boost/math/special_functions/round.hpp>
+#include <boost/format.hpp>
+#include <boost/function.hpp>
+#include <iostream>
+#include <complex>
+#include <cmath>
+
+namespace po = boost::program_options;
+
+/***********************************************************************
+ * Waveform generators
+ **********************************************************************/
+float gen_const(float){
+ return 1;
+}
+
+float gen_square(float x){
+ return float((std::fmod(x, 1) < float(0.5))? 0 : 1);
+}
+
+float gen_ramp(float x){
+ return std::fmod(x, 1)*2 - 1;
+}
+
+#define sine_table_len 2048
+static float sine_table[sine_table_len];
+UHD_STATIC_BLOCK(gen_sine_table){
+ static const float m_pi = std::acos(float(-1));
+ for (size_t i = 0; i < sine_table_len; i++)
+ sine_table[i] = std::sin((2*m_pi*i)/sine_table_len);
+}
+
+float gen_sine(float x){
+ return sine_table[size_t(x*sine_table_len)%sine_table_len];
+}
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args, wave_type;
+ size_t total_duration, spb;
+ double rate, freq, wave_freq;
+ float ampl, gain;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ ("duration", po::value<size_t>(&total_duration)->default_value(3), "number of seconds to transmit")
+ ("spb", po::value<size_t>(&spb)->default_value(10000), "samples per buffer")
+ ("rate", po::value<double>(&rate)->default_value(1.5e6), "rate of outgoing samples")
+ ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
+ ("ampl", po::value<float>(&ampl)->default_value(float(0.3)), "amplitude of the waveform")
+ ("gain", po::value<float>(&gain)->default_value(float(0)), "gain for the RF chain")
+ ("wave-type", po::value<std::string>(&wave_type)->default_value("CONST"), "waveform type (CONST, SQUARE, RAMP, SINE)")
+ ("wave-freq", po::value<double>(&wave_freq)->default_value(0), "waveform frequency in Hz")
+ ;
+ po::variables_map vm;
+ po::store(po::parse_command_line(argc, argv, desc), vm);
+ po::notify(vm);
+
+ //print the help message
+ if (vm.count("help")){
+ std::cout << boost::format("UHD TX Waveforms %s") % desc << std::endl;
+ return ~0;
+ }
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set the tx sample rate
+ std::cout << boost::format("Setting TX Rate: %f Msps...") % (rate/1e6) << std::endl;
+ sdev->set_tx_rate(rate);
+ std::cout << boost::format("Actual TX Rate: %f Msps...") % (sdev->get_tx_rate()/1e6) << std::endl << std::endl;
+
+ //set the tx center frequency
+ std::cout << boost::format("Setting TX Freq: %f Mhz...") % (freq/1e6) << std::endl;
+ sdev->set_tx_freq(freq);
+ std::cout << boost::format("Actual TX Freq: %f Mhz...") % (sdev->get_tx_freq()/1e6) << std::endl << std::endl;
+
+ //set the tx rf gain
+ std::cout << boost::format("Setting TX Gain: %f dB...") % gain << std::endl;
+ sdev->set_tx_gain(gain);
+ std::cout << boost::format("Actual TX Gain: %f dB...") % sdev->get_tx_gain() << std::endl << std::endl;
+
+ //for the const wave, set the wave freq for small samples per period
+ if (wave_freq == 0 and wave_type == "CONST"){
+ wave_freq = sdev->get_tx_rate()/2;
+ }
+
+ //error when the waveform is not possible to generate
+ if (std::abs(wave_freq) > sdev->get_tx_rate()/2){
+ throw std::runtime_error("wave freq out of Nyquist zone");
+ }
+ if (sdev->get_tx_rate()/std::abs(wave_freq) > sine_table_len/2 and wave_type == "SINE"){
+ throw std::runtime_error("sine freq too small for table");
+ }
+
+ //store the generator function for the selected waveform
+ boost::function<float(float)> wave_gen;
+ if (wave_type == "CONST") wave_gen = &gen_const;
+ else if (wave_type == "SQUARE") wave_gen = &gen_square;
+ else if (wave_type == "RAMP") wave_gen = &gen_ramp;
+ else if (wave_type == "SINE") wave_gen = &gen_sine;
+ else throw std::runtime_error("unknown waveform type: " + wave_type);
+
+ //allocate the buffer and precalculate values
+ std::vector<std::complex<float> > buff(spb);
+ const float cps = float(wave_freq/sdev->get_tx_rate());
+ const float i_off = (wave_freq > 0)? float(0.25) : 0;
+ const float q_off = (wave_freq < 0)? float(0.25) : 0;
+ float theta = 0;
+
+ //setup the metadata flags
+ uhd::tx_metadata_t md;
+ md.start_of_burst = true; //always SOB (good for continuous streaming)
+ md.end_of_burst = false;
+
+ //send the data in multiple packets
+ boost::system_time end_time(boost::get_system_time() + boost::posix_time::seconds(total_duration));
+ while(end_time > boost::get_system_time()){
+
+ //fill the buffer with the waveform
+ for (size_t n = 0; n < buff.size(); n++){
+ buff[n] = std::complex<float>(
+ ampl*wave_gen(i_off + theta),
+ ampl*wave_gen(q_off + theta)
+ );
+ theta += cps;
+ }
+
+ //bring the theta back into range [0, 1)
+ theta = std::fmod(theta, 1);
+
+ //send the entire contents of the buffer
+ dev->send(
+ &buff.front(), buff.size(), md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::SEND_MODE_FULL_BUFF
+ );
+ }
+
+ //send a mini EOB packet
+ md.start_of_burst = false;
+ md.end_of_burst = true;
+ dev->send(NULL, 0, md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::SEND_MODE_FULL_BUFF
+ );
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-08 10:58:35 +0000