diff options
Diffstat (limited to 'host/examples/tx_from_file.cpp')
| -rw-r--r-- | host/examples/tx_from_file.cpp | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/host/examples/tx_from_file.cpp b/host/examples/tx_from_file.cpp index 9611cf47c..8af9b0f4a 100644 --- a/host/examples/tx_from_file.cpp +++ b/host/examples/tx_from_file.cpp @@ -1,5 +1,5 @@ // -// Copyright 2010 Ettus Research LLC +// Copyright 2010-2011 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 @@ -31,24 +31,23 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ //variables to be set by po std::string args; - time_t seconds_in_future; + double seconds_in_future; size_t total_num_samps; size_t samps_per_packet; - double tx_rate, freq; + double tx_rate, freq, gain; 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") + ("secs", po::value<double>(&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>(&l)->default_value(float(0.3)), "amplitude of each sample") - ("gain", po::value<float>(&tx_gain)->default_value(float(0)), "amplitude of each sample") + ("gain", po::value<double>(&gain)->default_value(0), "amplitude of each sample") ("dilv", "specify to disable inner-loop verbose") ; po::variables_map vm; @@ -78,7 +77,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ sdev->set_tx_freq(freq); sdev->set_time_now(uhd::time_spec_t(0.0)); - sdev->set_tx_gain(tx_gain); + sdev->set_gain(gain); //allocate data to send std::vector<std::complex<short> > buff; @@ -102,7 +101,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ 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.start_of_burst = (i == 0); //only first packet has SOB 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); |