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Diffstat (limited to 'gr-fcd/examples/c++/fcd_nfm_rx.cc')
-rw-r--r--gr-fcd/examples/c++/fcd_nfm_rx.cc115
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diff --git a/gr-fcd/examples/c++/fcd_nfm_rx.cc b/gr-fcd/examples/c++/fcd_nfm_rx.cc
deleted file mode 100644
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--- a/gr-fcd/examples/c++/fcd_nfm_rx.cc
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@@ -1,115 +0,0 @@
-/*
- * Copyright 2011 Free Software Foundation, Inc.
- *
- * GNU Radio 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, or (at your option)
- * any later version.
- *
- * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
- */
-
-/*
- * Simple GNU Radio C++ example for using the Funcube Dongle.
- *
- * Construct a simple narrow band FM receiver using the gr-fcd
- * block as source.
- *
- * This example uses "hw:1" as FCD source device and the default
- * audio device for output.
- *
- */
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-// Include header files for each block used in flowgraph
-#include <gnuradio/top_block.h>
-#include <gnuradio/filter/firdes.h>
-#include <gnuradio/filter/fir_filter_ccf.h>
-#include <gnuradio/analog/quadrature_demod_cf.h>
-#include <gnuradio/audio/sink.h>
-#include <gnuradio/fcd/source_c.h>
-
-// other includes
-#include <iostream>
-#include <boost/program_options.hpp>
-
-using namespace gr;
-namespace po = boost::program_options;
-
-int main(int argc, char **argv)
-{
- int rate = 48000; // Audio card sample rate
- float pi = 3.141592654;
-
-
- //variables to be set by po
- std::string device;
- int freq;
- float gain;
-
- //setup the program options
- po::options_description desc("Command line options");
- desc.add_options()
- ("help", "This help message")
- ("device", po::value<std::string>(&device)->default_value("hw:1"), "Audio input device")
- ("freq", po::value<int>(&freq)->default_value(145500), "RF frequency in kHz")
- ("gain", po::value<float>(&gain)->default_value(20.0), "LNA gain in 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")){
- std::cout << "Narrow band FM receiver example" << std::endl << desc << std::endl;
- return ~0;
- }
-
-
- // Construct a top block that will contain flowgraph blocks.
- top_block_sptr tb = make_top_block("fcd_nfm_rx");
-
- // FCD source
- gr::fcd::source_c::sptr fcd = gr::fcd::source_c::make(device);
- fcd->set_freq_khz(freq);
- fcd->set_lna_gain(gain);
-
- // Low pass filter
- std::vector<float> taps = filter::firdes::low_pass(1.0, 96000, 5000.0, 1000.0);
- filter::fir_filter_ccf::sptr filter = filter::fir_filter_ccf::make (2, taps);
-
- // FM demodulator
- // gain = sample_rate / (2*pi*max_dev)
- analog::quadrature_demod_cf::sptr demod = \
- analog::quadrature_demod_cf::make(rate/(2.0*pi*5000.0));
-
- // Audio sink
- audio::sink::sptr sink = audio::sink::make(rate);
-
- // Connect blocks
- tb->connect(fcd, 0, filter, 0);
- tb->connect(filter, 0, demod, 0);
- tb->connect(demod, 0, sink, 0);
-
- // Tell GNU Radio runtime to start flowgraph threads; the foreground thread
- // will block until either flowgraph exits (this example doesn't) or the
- // application receives SIGINT (e.g., user hits CTRL-C).
- //
- // Real applications may use tb->start() which returns, allowing the foreground
- // thread to proceed, then later use tb->stop(), followed by tb->wait(), to cleanup
- // GNU Radio before exiting.
- tb->run();
-
- // Exit normally.
- return 0;
-}