diff options
Diffstat (limited to 'host/examples')
-rw-r--r-- | host/examples/benchmark_rate.cpp | 24 | ||||
-rw-r--r-- | host/examples/rx_multi_samples.cpp | 20 | ||||
-rw-r--r-- | host/examples/tx_bursts.cpp | 24 | ||||
-rw-r--r-- | host/examples/tx_waveforms.cpp | 39 | ||||
-rw-r--r-- | host/examples/txrx_loopback_to_file.cpp | 61 |
5 files changed, 127 insertions, 41 deletions
diff --git a/host/examples/benchmark_rate.cpp b/host/examples/benchmark_rate.cpp index 02e5ef60a..3b2ab8a1f 100644 --- a/host/examples/benchmark_rate.cpp +++ b/host/examples/benchmark_rate.cpp @@ -1,5 +1,5 @@ // -// Copyright 2011-2012 Ettus Research LLC +// Copyright 2011-2013 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 @@ -22,6 +22,8 @@ #include <boost/program_options.hpp> #include <boost/format.hpp> #include <boost/thread/thread.hpp> +#include <boost/algorithm/string.hpp> +#include <boost/lexical_cast.hpp> #include <iostream> #include <complex> #include <cstdlib> @@ -167,6 +169,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ std::string rx_otw, tx_otw; std::string rx_cpu, tx_cpu; std::string mode; + std::string channel_list; //setup the program options po::options_description desc("Allowed options"); @@ -181,6 +184,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ ("rx_cpu", po::value<std::string>(&rx_cpu)->default_value("fc32"), "specify the host/cpu sample mode for RX") ("tx_cpu", po::value<std::string>(&tx_cpu)->default_value("fc32"), "specify the host/cpu sample mode for TX") ("mode", po::value<std::string>(&mode)->default_value("none"), "multi-channel sync mode option: none, mimo") + ("channels", po::value<std::string>(&channel_list)->default_value("0"), "which channel(s) to use (specify \"0\", \"1\", \"0,1\", etc)") ; po::variables_map vm; po::store(po::parse_command_line(argc, argv, desc), vm); @@ -216,13 +220,24 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ boost::thread_group thread_group; + //detect which channels to use + std::vector<std::string> channel_strings; + std::vector<size_t> channel_nums; + boost::split(channel_strings, channel_list, boost::is_any_of("\"',")); + for(size_t ch = 0; ch < channel_strings.size(); ch++){ + size_t chan = boost::lexical_cast<int>(channel_strings[ch]); + if(chan >= usrp->get_tx_num_channels() or chan >= usrp->get_tx_num_channels()){ + throw std::runtime_error("Invalid channel(s) specified."); + } + else channel_nums.push_back(boost::lexical_cast<int>(channel_strings[ch])); + } + //spawn the receive test thread if (vm.count("rx_rate")){ usrp->set_rx_rate(rx_rate); //create a receive streamer uhd::stream_args_t stream_args(rx_cpu, rx_otw); - for (size_t ch = 0; ch < usrp->get_rx_num_channels(); ch++) //linear channel mapping - stream_args.channels.push_back(ch); + stream_args.channels = channel_nums; uhd::rx_streamer::sptr rx_stream = usrp->get_rx_stream(stream_args); thread_group.create_thread(boost::bind(&benchmark_rx_rate, usrp, rx_cpu, rx_stream)); } @@ -232,8 +247,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ usrp->set_tx_rate(tx_rate); //create a transmit streamer uhd::stream_args_t stream_args(tx_cpu, tx_otw); - for (size_t ch = 0; ch < usrp->get_tx_num_channels(); ch++) //linear channel mapping - stream_args.channels.push_back(ch); + stream_args.channels = channel_nums; uhd::tx_streamer::sptr tx_stream = usrp->get_tx_stream(stream_args); thread_group.create_thread(boost::bind(&benchmark_tx_rate, usrp, tx_cpu, tx_stream)); thread_group.create_thread(boost::bind(&benchmark_tx_rate_async_helper, tx_stream)); diff --git a/host/examples/rx_multi_samples.cpp b/host/examples/rx_multi_samples.cpp index 4f312ad36..9e5970978 100644 --- a/host/examples/rx_multi_samples.cpp +++ b/host/examples/rx_multi_samples.cpp @@ -21,6 +21,8 @@ #include <boost/program_options.hpp> #include <boost/format.hpp> #include <boost/thread.hpp> +#include <boost/lexical_cast.hpp> +#include <boost/algorithm/string.hpp> #include <iostream> #include <complex> @@ -30,7 +32,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ uhd::set_thread_priority_safe(); //variables to be set by po - std::string args, sync, subdev; + std::string args, sync, subdev, channel_list; double seconds_in_future; size_t total_num_samps; double rate; @@ -46,6 +48,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ ("sync", po::value<std::string>(&sync)->default_value("now"), "synchronization method: now, pps, mimo") ("subdev", po::value<std::string>(&subdev), "subdev spec (homogeneous across motherboards)") ("dilv", "specify to disable inner-loop verbose") + ("channels", po::value<std::string>(&channel_list)->default_value("0"), "which channel(s) to use (specify \"0\", \"1\", \"0,1\", etc)") ; po::variables_map vm; po::store(po::parse_command_line(argc, argv, desc), vm); @@ -110,11 +113,22 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ boost::this_thread::sleep(boost::posix_time::milliseconds(100)); } + //detect which channels to use + std::vector<std::string> channel_strings; + std::vector<size_t> channel_nums; + boost::split(channel_strings, channel_list, boost::is_any_of("\"',")); + for(size_t ch = 0; ch < channel_strings.size(); ch++){ + size_t chan = boost::lexical_cast<int>(channel_strings[ch]); + if(chan >= usrp->get_rx_num_channels()){ + throw std::runtime_error("Invalid channel(s) specified."); + } + else channel_nums.push_back(boost::lexical_cast<int>(channel_strings[ch])); + } + //create a receive streamer //linearly map channels (index0 = channel0, index1 = channel1, ...) uhd::stream_args_t stream_args("fc32"); //complex floats - for (size_t chan = 0; chan < usrp->get_rx_num_channels(); chan++) - stream_args.channels.push_back(chan); //linear mapping + stream_args.channels = channel_nums; uhd::rx_streamer::sptr rx_stream = usrp->get_rx_stream(stream_args); //setup streaming diff --git a/host/examples/tx_bursts.cpp b/host/examples/tx_bursts.cpp index c58d3e178..eada1a618 100644 --- a/host/examples/tx_bursts.cpp +++ b/host/examples/tx_bursts.cpp @@ -21,6 +21,8 @@ #include <boost/program_options.hpp> #include <boost/thread/thread.hpp> #include <boost/format.hpp> +#include <boost/lexical_cast.hpp> +#include <boost/algorithm/string.hpp> #include <csignal> #include <iostream> #include <complex> @@ -34,7 +36,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ uhd::set_thread_priority_safe(); //variables to be set by po - std::string args; + std::string args, channel_list; double seconds_in_future; size_t total_num_samps; double rate; @@ -57,6 +59,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ ("freq", po::value<double>(&freq)->default_value(0), "center frequency") ("gain", po::value<double>(&gain)->default_value(0), "gain") ("dilv", "specify to disable inner-loop verbose") + ("channels", po::value<std::string>(&channel_list)->default_value("0"), "which channel(s) to use (specify \"0\", \"1\", \"0,1\", etc") ; po::variables_map vm; po::store(po::parse_command_line(argc, argv, desc), vm); @@ -77,17 +80,29 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ uhd::usrp::multi_usrp::sptr usrp = uhd::usrp::multi_usrp::make(args); std::cout << boost::format("Using Device: %s") % usrp->get_pp_string() << std::endl; + //detect which channels to use + std::vector<std::string> channel_strings; + std::vector<size_t> channel_nums; + boost::split(channel_strings, channel_list, boost::is_any_of("\"',")); + for(size_t ch = 0; ch < channel_strings.size(); ch++){ + size_t chan = boost::lexical_cast<int>(channel_strings[ch]); + if(chan >= usrp->get_tx_num_channels()){ + throw std::runtime_error("Invalid channel(s) specified."); + } + else channel_nums.push_back(boost::lexical_cast<int>(channel_strings[ch])); + } + //set the tx sample rate std::cout << boost::format("Setting TX Rate: %f Msps...") % (rate/1e6) << std::endl; usrp->set_tx_rate(rate); std::cout << boost::format("Actual TX Rate: %f Msps...") % (usrp->get_tx_rate()/1e6) << std::endl << std::endl; std::cout << boost::format("Setting TX Freq: %f MHz...") % (freq/1e6) << std::endl; - for(size_t i=0; i < usrp->get_tx_num_channels(); i++) usrp->set_tx_freq(freq, i); + for(size_t i=0; i < channel_nums.size(); i++) usrp->set_tx_freq(freq, channel_nums[i]); std::cout << boost::format("Actual TX Freq: %f MHz...") % (usrp->get_tx_freq()/1e6) << std::endl << std::endl; std::cout << boost::format("Setting TX Gain: %f...") % (gain) << std::endl; - for(size_t i=0; i < usrp->get_tx_num_channels(); i++) usrp->set_tx_gain(gain, i); + for(size_t i=0; i < channel_nums.size(); i++) usrp->set_tx_gain(gain, channel_nums[i]); std::cout << boost::format("Actual TX Gain: %f...") % (usrp->get_tx_gain()) << std::endl << std::endl; std::cout << boost::format("Setting device timestamp to 0...") << std::endl; @@ -95,13 +110,14 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ //create a transmit streamer uhd::stream_args_t stream_args("fc32"); //complex floats + stream_args.channels = channel_nums; uhd::tx_streamer::sptr tx_stream = usrp->get_tx_stream(stream_args); //allocate buffer with data to send const size_t spb = tx_stream->get_max_num_samps(); std::vector<std::complex<float> > buff(spb, std::complex<float>(ampl, ampl)); - std::vector<std::complex<float> *> buffs(usrp->get_tx_num_channels(), &buff.front()); + std::vector<std::complex<float> *> buffs(channel_nums.size(), &buff.front()); std::signal(SIGINT, &sig_int_handler); if(repeat) std::cout << "Press Ctrl + C to quit..." << std::endl; diff --git a/host/examples/tx_waveforms.cpp b/host/examples/tx_waveforms.cpp index 40326ae93..9474642df 100644 --- a/host/examples/tx_waveforms.cpp +++ b/host/examples/tx_waveforms.cpp @@ -25,6 +25,8 @@ #include <boost/foreach.hpp> #include <boost/format.hpp> #include <boost/thread.hpp> +#include <boost/lexical_cast.hpp> +#include <boost/algorithm/string.hpp> #include <iostream> #include <complex> #include <csignal> @@ -91,7 +93,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ uhd::set_thread_priority_safe(); //variables to be set by po - std::string args, wave_type, ant, subdev, ref, otw; + std::string args, wave_type, ant, subdev, ref, otw, channel_list; size_t spb; double rate, freq, gain, wave_freq, bw; float ampl; @@ -113,6 +115,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ ("wave-freq", po::value<double>(&wave_freq)->default_value(0), "waveform frequency in Hz") ("ref", po::value<std::string>(&ref)->default_value("internal"), "clock reference (internal, external, mimo)") ("otw", po::value<std::string>(&otw)->default_value("sc16"), "specify the over-the-wire sample mode") + ("channels", po::value<std::string>(&channel_list)->default_value("0"), "which channels to use (specify \"0\", \"1\", \"0,1\", etc)") ; po::variables_map vm; po::store(po::parse_command_line(argc, argv, desc), vm); @@ -129,6 +132,19 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl; uhd::usrp::multi_usrp::sptr usrp = uhd::usrp::multi_usrp::make(args); + //detect which channels to use + std::vector<std::string> channel_strings; + std::vector<size_t> channel_nums; + boost::split(channel_strings, channel_list, boost::is_any_of("\"',")); + for(size_t ch = 0; ch < channel_strings.size(); ch++){ + size_t chan = boost::lexical_cast<int>(channel_strings[ch]); + if(chan >= usrp->get_tx_num_channels() or chan >= usrp->get_tx_num_channels()){ + throw std::runtime_error("Invalid channel(s) specified."); + } + else channel_nums.push_back(boost::lexical_cast<int>(channel_strings[ch])); + } + + //Lock mboard clocks usrp->set_clock_source(ref); @@ -152,27 +168,27 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ return ~0; } - for(size_t chan = 0; chan < usrp->get_tx_num_channels(); chan++) { + for(size_t ch = 0; ch < channel_nums.size(); ch++) { std::cout << boost::format("Setting TX Freq: %f MHz...") % (freq/1e6) << std::endl; - usrp->set_tx_freq(freq, chan); - std::cout << boost::format("Actual TX Freq: %f MHz...") % (usrp->get_tx_freq(chan)/1e6) << std::endl << std::endl; + usrp->set_tx_freq(freq, channel_nums[ch]); + std::cout << boost::format("Actual TX Freq: %f MHz...") % (usrp->get_tx_freq(channel_nums[ch])/1e6) << std::endl << std::endl; //set the rf gain if (vm.count("gain")){ std::cout << boost::format("Setting TX Gain: %f dB...") % gain << std::endl; - usrp->set_tx_gain(gain, chan); - std::cout << boost::format("Actual TX Gain: %f dB...") % usrp->get_tx_gain(chan) << std::endl << std::endl; + usrp->set_tx_gain(gain, channel_nums[ch]); + std::cout << boost::format("Actual TX Gain: %f dB...") % usrp->get_tx_gain(channel_nums[ch]) << std::endl << std::endl; } //set the IF filter bandwidth if (vm.count("bw")){ std::cout << boost::format("Setting TX Bandwidth: %f MHz...") % bw << std::endl; - usrp->set_tx_bandwidth(bw, chan); - std::cout << boost::format("Actual TX Bandwidth: %f MHz...") % usrp->get_tx_bandwidth(chan) << std::endl << std::endl; + usrp->set_tx_bandwidth(bw, channel_nums[ch]); + std::cout << boost::format("Actual TX Bandwidth: %f MHz...") % usrp->get_tx_bandwidth(channel_nums[ch]) << std::endl << std::endl; } //set the antenna - if (vm.count("ant")) usrp->set_tx_antenna(ant, chan); + if (vm.count("ant")) usrp->set_tx_antenna(ant, channel_nums[ch]); } boost::this_thread::sleep(boost::posix_time::seconds(1)); //allow for some setup time @@ -198,14 +214,13 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ //create a transmit streamer //linearly map channels (index0 = channel0, index1 = channel1, ...) uhd::stream_args_t stream_args("fc32", otw); - for (size_t chan = 0; chan < usrp->get_tx_num_channels(); chan++) - stream_args.channels.push_back(chan); //linear mapping + stream_args.channels = channel_nums; uhd::tx_streamer::sptr tx_stream = usrp->get_tx_stream(stream_args); //allocate a buffer which we re-use for each channel if (spb == 0) spb = tx_stream->get_max_num_samps()*10; std::vector<std::complex<float> > buff(spb); - std::vector<std::complex<float> *> buffs(usrp->get_tx_num_channels(), &buff.front()); + std::vector<std::complex<float> *> buffs(channel_nums.size(), &buff.front()); //setup the metadata flags uhd::tx_metadata_t md; diff --git a/host/examples/txrx_loopback_to_file.cpp b/host/examples/txrx_loopback_to_file.cpp index ef119b689..666153edb 100644 --- a/host/examples/txrx_loopback_to_file.cpp +++ b/host/examples/txrx_loopback_to_file.cpp @@ -25,6 +25,8 @@ #include <boost/math/special_functions/round.hpp> #include <boost/foreach.hpp> #include <boost/format.hpp> +#include <boost/lexical_cast.hpp> +#include <boost/algorithm/string.hpp> #include <iostream> #include <fstream> #include <complex> @@ -130,11 +132,13 @@ template<typename samp_type> void recv_to_file( const std::string &file, size_t samps_per_buff, int num_requested_samples, - float settling_time + float settling_time, + std::vector<size_t> rx_channel_nums ){ int num_total_samps = 0; //create a receive streamer uhd::stream_args_t stream_args(cpu_format,wire_format); + stream_args.channels = rx_channel_nums; uhd::rx_streamer::sptr rx_stream = usrp->get_rx_stream(stream_args); uhd::rx_metadata_t md; @@ -196,12 +200,12 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ uhd::set_thread_priority_safe(); //transmit variables to be set by po - std::string tx_args, wave_type, tx_ant, tx_subdev, ref, otw; + std::string tx_args, wave_type, tx_ant, tx_subdev, ref, otw, tx_channels; double tx_rate, tx_freq, tx_gain, wave_freq, tx_bw; float ampl; //receive variables to be set by po - std::string rx_args, file, type, rx_ant, rx_subdev; + std::string rx_args, file, type, rx_ant, rx_subdev, rx_channels; size_t total_num_samps, spb; double rx_rate, rx_freq, rx_gain, rx_bw; float settling; @@ -234,6 +238,8 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ ("wave-freq", po::value<double>(&wave_freq)->default_value(0), "waveform frequency in Hz") ("ref", po::value<std::string>(&ref)->default_value("internal"), "clock reference (internal, external, mimo)") ("otw", po::value<std::string>(&otw)->default_value("sc16"), "specify the over-the-wire sample mode") + ("tx-channels", po::value<std::string>(&tx_channels)->default_value("0"), "which TX channel(s) to use (specify \"0\", \"1\", \"0,1\", etc)") + ("rx-channels", po::value<std::string>(&rx_channels)->default_value("0"), "which RX channel(s) to use (specify \"0\", \"1\", \"0,1\", etc)") ; po::variables_map vm; po::store(po::parse_command_line(argc, argv, desc), vm); @@ -253,6 +259,28 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ std::cout << boost::format("Creating the receive usrp device with: %s...") % rx_args << std::endl; uhd::usrp::multi_usrp::sptr rx_usrp = uhd::usrp::multi_usrp::make(rx_args); + //detect which channels to use + std::vector<std::string> tx_channel_strings; + std::vector<size_t> tx_channel_nums; + boost::split(tx_channel_strings, tx_channels, boost::is_any_of("\"',")); + for(size_t ch = 0; ch < tx_channel_strings.size(); ch++){ + size_t chan = boost::lexical_cast<int>(tx_channel_strings[ch]); + if(chan >= tx_usrp->get_tx_num_channels()){ + throw std::runtime_error("Invalid TX channel(s) specified."); + } + else tx_channel_nums.push_back(boost::lexical_cast<int>(tx_channel_strings[ch])); + } + std::vector<std::string> rx_channel_strings; + std::vector<size_t> rx_channel_nums; + boost::split(rx_channel_strings, rx_channels, boost::is_any_of("\"',")); + for(size_t ch = 0; ch < rx_channel_strings.size(); ch++){ + size_t chan = boost::lexical_cast<int>(rx_channel_strings[ch]); + if(chan >= rx_usrp->get_rx_num_channels()){ + throw std::runtime_error("Invalid RX channel(s) specified."); + } + else rx_channel_nums.push_back(boost::lexical_cast<int>(rx_channel_strings[ch])); + } + //Lock mboard clocks tx_usrp->set_clock_source(ref); rx_usrp->set_clock_source(ref); @@ -288,27 +316,27 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ return ~0; } - for(size_t chan = 0; chan < tx_usrp->get_tx_num_channels(); chan++) { + for(size_t ch = 0; ch < tx_channel_nums.size(); ch++) { std::cout << boost::format("Setting TX Freq: %f MHz...") % (tx_freq/1e6) << std::endl; - tx_usrp->set_tx_freq(tx_freq, chan); - std::cout << boost::format("Actual TX Freq: %f MHz...") % (tx_usrp->get_tx_freq(chan)/1e6) << std::endl << std::endl; + tx_usrp->set_tx_freq(tx_freq, tx_channel_nums[ch]); + std::cout << boost::format("Actual TX Freq: %f MHz...") % (tx_usrp->get_tx_freq(tx_channel_nums[ch])/1e6) << std::endl << std::endl; //set the rf gain if (vm.count("tx-gain")){ std::cout << boost::format("Setting TX Gain: %f dB...") % tx_gain << std::endl; - tx_usrp->set_tx_gain(tx_gain, chan); - std::cout << boost::format("Actual TX Gain: %f dB...") % tx_usrp->get_tx_gain(chan) << std::endl << std::endl; + tx_usrp->set_tx_gain(tx_gain, tx_channel_nums[ch]); + std::cout << boost::format("Actual TX Gain: %f dB...") % tx_usrp->get_tx_gain(tx_channel_nums[ch]) << std::endl << std::endl; } //set the IF filter bandwidth if (vm.count("tx-bw")){ std::cout << boost::format("Setting TX Bandwidth: %f MHz...") % tx_bw << std::endl; - tx_usrp->set_tx_bandwidth(tx_bw, chan); - std::cout << boost::format("Actual TX Bandwidth: %f MHz...") % tx_usrp->get_tx_bandwidth(chan) << std::endl << std::endl; + tx_usrp->set_tx_bandwidth(tx_bw, tx_channel_nums[ch]); + std::cout << boost::format("Actual TX Bandwidth: %f MHz...") % tx_usrp->get_tx_bandwidth(tx_channel_nums[ch]) << std::endl << std::endl; } //set the antenna - if (vm.count("tx-ant")) tx_usrp->set_tx_antenna(tx_ant, chan); + if (vm.count("tx-ant")) tx_usrp->set_tx_antenna(tx_ant, tx_channel_nums[ch]); } //set the receive center frequency @@ -358,14 +386,13 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ //create a transmit streamer //linearly map channels (index0 = channel0, index1 = channel1, ...) uhd::stream_args_t stream_args("fc32", otw); - for (size_t chan = 0; chan < tx_usrp->get_tx_num_channels(); chan++) - stream_args.channels.push_back(chan); //linear mapping + stream_args.channels = tx_channel_nums; uhd::tx_streamer::sptr tx_stream = tx_usrp->get_tx_stream(stream_args); //allocate a buffer which we re-use for each channel if (spb == 0) spb = tx_stream->get_max_num_samps()*10; std::vector<std::complex<float> > buff(spb); - int num_channels = tx_usrp->get_tx_num_channels(); + int num_channels = tx_channel_nums.size(); //setup the metadata flags uhd::tx_metadata_t md; @@ -427,9 +454,9 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ transmit_thread.create_thread(boost::bind(&transmit_worker, buff, wave_table, tx_stream, md, step, index, num_channels)); //recv to file - if (type == "double") recv_to_file<std::complex<double> >(rx_usrp, "fc64", otw, file, spb, total_num_samps, settling); - else if (type == "float") recv_to_file<std::complex<float> >(rx_usrp, "fc32", otw, file, spb, total_num_samps, settling); - else if (type == "short") recv_to_file<std::complex<short> >(rx_usrp, "sc16", otw, file, spb, total_num_samps, settling); + if (type == "double") recv_to_file<std::complex<double> >(rx_usrp, "fc64", otw, file, spb, total_num_samps, settling, rx_channel_nums); + else if (type == "float") recv_to_file<std::complex<float> >(rx_usrp, "fc32", otw, file, spb, total_num_samps, settling, rx_channel_nums); + else if (type == "short") recv_to_file<std::complex<short> >(rx_usrp, "sc16", otw, file, spb, total_num_samps, settling, rx_channel_nums); else { //clean up transmit worker stop_signal_called = true; |