// // Copyright 2011-2012,2014 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 . // #include #include #include #include #include #include #include #include #include #include #include namespace po = boost::program_options; static bool stop_signal_called = false; void sig_int_handler(int){stop_signal_called = true;} template void send_from_file( uhd::tx_streamer::sptr tx_stream, const std::string &file, size_t samps_per_buff ){ uhd::tx_metadata_t md; md.start_of_burst = false; md.end_of_burst = false; std::vector buff(samps_per_buff); std::ifstream infile(file.c_str(), std::ifstream::binary); //loop until the entire file has been read while(not md.end_of_burst and not stop_signal_called){ infile.read((char*)&buff.front(), buff.size()*sizeof(samp_type)); size_t num_tx_samps = size_t(infile.gcount()/sizeof(samp_type)); md.end_of_burst = infile.eof(); tx_stream->send(&buff.front(), num_tx_samps, md); } infile.close(); } int UHD_SAFE_MAIN(int argc, char *argv[]){ uhd::set_thread_priority_safe(); //variables to be set by po std::string args, file, type, ant, subdev, ref, wirefmt, channel; size_t spb; double rate, freq, gain, bw, delay, lo_off; //setup the program options po::options_description desc("Allowed options"); desc.add_options() ("help", "help message") ("args", po::value(&args)->default_value(""), "multi uhd device address args") ("file", po::value(&file)->default_value("usrp_samples.dat"), "name of the file to read binary samples from") ("type", po::value(&type)->default_value("short"), "sample type: double, float, or short") ("spb", po::value(&spb)->default_value(10000), "samples per buffer") ("rate", po::value(&rate), "rate of outgoing samples") ("freq", po::value(&freq), "RF center frequency in Hz") ("lo_off", po::value(&lo_off), "Offset for frontend LO in Hz (optional)") ("gain", po::value(&gain), "gain for the RF chain") ("ant", po::value(&ant), "antenna selection") ("subdev", po::value(&subdev), "subdevice specification") ("bw", po::value(&bw), "analog frontend filter bandwidth in Hz") ("ref", po::value(&ref)->default_value("internal"), "reference source (internal, external, mimo)") ("wirefmt", po::value(&wirefmt)->default_value("sc16"), "wire format (sc8 or sc16)") ("delay", po::value(&delay)->default_value(0.0), "specify a delay between repeated transmission of file") ("channel", po::value(&channel)->default_value("0"), "which channel to use") ("repeat", "repeatedly transmit file") ("int-n", "tune USRP with integer-n tuning") ; 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 samples from file %s") % desc << std::endl; return ~0; } bool repeat = vm.count("repeat") > 0; //create a usrp device std::cout << std::endl; 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); //Lock mboard clocks usrp->set_clock_source(ref); //always select the subdevice first, the channel mapping affects the other settings if (vm.count("subdev")) usrp->set_tx_subdev_spec(subdev); std::cout << boost::format("Using Device: %s") % usrp->get_pp_string() << std::endl; //set the sample rate if (not vm.count("rate")){ std::cerr << "Please specify the sample rate with --rate" << std::endl; return ~0; } 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; //set the center frequency if (not vm.count("freq")){ std::cerr << "Please specify the center frequency with --freq" << std::endl; return ~0; } std::cout << boost::format("Setting TX Freq: %f MHz...") % (freq/1e6) << std::endl; uhd::tune_request_t tune_request; if(vm.count("lo_off")) tune_request = uhd::tune_request_t(freq, lo_off); else tune_request = uhd::tune_request_t(freq); if(vm.count("int-n")) tune_request.args = uhd::device_addr_t("mode_n=integer"); usrp->set_tx_freq(tune_request); std::cout << boost::format("Actual TX Freq: %f MHz...") % (usrp->get_tx_freq()/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); std::cout << boost::format("Actual TX Gain: %f dB...") % usrp->get_tx_gain() << std::endl << std::endl; } //set the analog frontend filter bandwidth if (vm.count("bw")){ std::cout << boost::format("Setting TX Bandwidth: %f MHz...") % bw << std::endl; usrp->set_tx_bandwidth(bw); std::cout << boost::format("Actual TX Bandwidth: %f MHz...") % usrp->get_tx_bandwidth() << std::endl << std::endl; } //set the antenna if (vm.count("ant")) usrp->set_tx_antenna(ant); boost::this_thread::sleep(boost::posix_time::seconds(1)); //allow for some setup time //Check Ref and LO Lock detect std::vector sensor_names; sensor_names = usrp->get_tx_sensor_names(0); if (std::find(sensor_names.begin(), sensor_names.end(), "lo_locked") != sensor_names.end()) { uhd::sensor_value_t lo_locked = usrp->get_tx_sensor("lo_locked",0); std::cout << boost::format("Checking TX: %s ...") % lo_locked.to_pp_string() << std::endl; UHD_ASSERT_THROW(lo_locked.to_bool()); } sensor_names = usrp->get_mboard_sensor_names(0); if ((ref == "mimo") and (std::find(sensor_names.begin(), sensor_names.end(), "mimo_locked") != sensor_names.end())) { uhd::sensor_value_t mimo_locked = usrp->get_mboard_sensor("mimo_locked",0); std::cout << boost::format("Checking TX: %s ...") % mimo_locked.to_pp_string() << std::endl; UHD_ASSERT_THROW(mimo_locked.to_bool()); } if ((ref == "external") and (std::find(sensor_names.begin(), sensor_names.end(), "ref_locked") != sensor_names.end())) { uhd::sensor_value_t ref_locked = usrp->get_mboard_sensor("ref_locked",0); std::cout << boost::format("Checking TX: %s ...") % ref_locked.to_pp_string() << std::endl; UHD_ASSERT_THROW(ref_locked.to_bool()); } //set sigint if user wants to receive if(repeat){ std::signal(SIGINT, &sig_int_handler); std::cout << "Press Ctrl + C to stop streaming..." << std::endl; } //create a transmit streamer std::string cpu_format; std::vector channel_nums; if (type == "double") cpu_format = "fc64"; else if (type == "float") cpu_format = "fc32"; else if (type == "short") cpu_format = "sc16"; uhd::stream_args_t stream_args(cpu_format, wirefmt); channel_nums.push_back(boost::lexical_cast(channel)); stream_args.channels = channel_nums; uhd::tx_streamer::sptr tx_stream = usrp->get_tx_stream(stream_args); //send from file do{ if (type == "double") send_from_file >(tx_stream, file, spb); else if (type == "float") send_from_file >(tx_stream, file, spb); else if (type == "short") send_from_file >(tx_stream, file, spb); else throw std::runtime_error("Unknown type " + type); if(repeat and delay != 0.0) boost::this_thread::sleep(boost::posix_time::milliseconds(delay)); } while(repeat and not stop_signal_called); //finished std::cout << std::endl << "Done!" << std::endl << std::endl; return EXIT_SUCCESS; }