diff options
Diffstat (limited to 'host/examples/tx_bursts.cpp')
| -rw-r--r-- | host/examples/tx_bursts.cpp | 24 |
1 files changed, 20 insertions, 4 deletions
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; |