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-rw-r--r--host/examples/CMakeLists.txt1
-rw-r--r--host/examples/tx_bursts.cpp162
-rw-r--r--host/examples/tx_timed_samples.cpp2
-rw-r--r--host/examples/tx_waveforms.cpp72
4 files changed, 209 insertions, 28 deletions
diff --git a/host/examples/CMakeLists.txt b/host/examples/CMakeLists.txt
index 1bb037d16..fe9e6409e 100644
--- a/host/examples/CMakeLists.txt
+++ b/host/examples/CMakeLists.txt
@@ -26,6 +26,7 @@ SET(example_sources
rx_timed_samples.cpp
test_async_messages.cpp
test_pps_input.cpp
+ tx_bursts.cpp
tx_samples_from_file.cpp
tx_timed_samples.cpp
tx_waveforms.cpp
diff --git a/host/examples/tx_bursts.cpp b/host/examples/tx_bursts.cpp
new file mode 100644
index 000000000..a66fb85b6
--- /dev/null
+++ b/host/examples/tx_bursts.cpp
@@ -0,0 +1,162 @@
+//
+// 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
+// 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 <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/utils/thread_priority.hpp>
+#include <uhd/utils/safe_main.hpp>
+#include <uhd/usrp/multi_usrp.hpp>
+#include <boost/program_options.hpp>
+#include <boost/thread/thread.hpp>
+#include <boost/format.hpp>
+#include <csignal>
+#include <iostream>
+#include <complex>
+
+namespace po = boost::program_options;
+
+static bool stop_signal_called = false;
+void sig_int_handler(int){stop_signal_called = true;}
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ double seconds_in_future;
+ size_t total_num_samps;
+ double rate;
+ float ampl;
+ double freq;
+ double rep_rate;
+ double 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(""), "multi uhd device address args")
+ ("secs", po::value<double>(&seconds_in_future)->default_value(1.5), "delay before first burst")
+ ("repeat", "repeat burst")
+ ("rep-delay", po::value<double>(&rep_rate)->default_value(0.5), "delay between bursts")
+ ("nsamps", po::value<size_t>(&total_num_samps)->default_value(10000), "total number of samples to transmit")
+ ("rate", po::value<double>(&rate)->default_value(100e6/16), "rate of outgoing samples")
+ ("ampl", po::value<float>(&ampl)->default_value(float(0.3)), "amplitude of each sample")
+ ("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")
+ ;
+ 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 Timed Samples %s") % desc << std::endl;
+ return ~0;
+ }
+
+ bool verbose = vm.count("dilv") == 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);
+ std::cout << boost::format("Using Device: %s") % usrp->get_pp_string() << std::endl;
+
+ //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);
+ 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);
+ 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;
+ usrp->set_time_now(uhd::time_spec_t(0.0));
+
+ //allocate buffer with data to send
+ size_t spb = usrp->get_device()->get_max_send_samps_per_packet();
+
+ std::vector<std::complex<float> *> buffs;
+ for(size_t i=0; i < usrp->get_num_mboards(); i++) {
+ buffs.push_back(new std::complex<float>[spb]);
+ for(size_t n=0; n < spb; n++)
+ buffs.back()[n] = std::complex<float>(ampl, ampl);
+ }
+
+ std::signal(SIGINT, &sig_int_handler);
+ if(repeat) std::cout << "Press Ctrl + C to quit..." << std::endl;
+
+ double time_to_send = seconds_in_future;
+
+ do {
+ //setup metadata for the first packet
+ uhd::tx_metadata_t md;
+ md.start_of_burst = true;
+ md.end_of_burst = false;
+ md.has_time_spec = true;
+ md.time_spec = uhd::time_spec_t(time_to_send);
+
+ //the first call to send() will block this many seconds before sending:
+ double timeout = std::max(rep_rate, seconds_in_future) + 0.1; //timeout (delay before transmit + padding)
+
+ size_t num_acc_samps = 0; //number of accumulated samples
+ while(num_acc_samps < total_num_samps){
+ size_t samps_to_send = std::min(total_num_samps - num_acc_samps, spb);
+
+ //ensure the the last packet has EOB set
+ md.end_of_burst = samps_to_send < spb;
+
+ //send a single packet
+ size_t num_tx_samps = usrp->get_device()->send(
+ buffs, samps_to_send, md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::SEND_MODE_ONE_PACKET, timeout
+ );
+
+ //do not use time spec for subsequent packets
+ md.has_time_spec = false;
+ md.start_of_burst = false;
+
+ if (num_tx_samps < samps_to_send) std::cerr << "Send timeout..." << std::endl;
+ if(verbose) std::cout << boost::format("Sent packet: %u samples") % num_tx_samps << std::endl;
+
+ num_acc_samps += num_tx_samps;
+ }
+
+ time_to_send += rep_rate;
+
+ std::cout << std::endl << "Waiting for async burst ACK... " << std::flush;
+ uhd::async_metadata_t async_md;
+ bool got_async_burst_ack = false;
+ //loop through all messages for the ACK packet (may have underflow messages in queue)
+ while (not got_async_burst_ack and usrp->get_device()->recv_async_msg(async_md, seconds_in_future)){
+ got_async_burst_ack = (async_md.event_code == uhd::async_metadata_t::EVENT_CODE_BURST_ACK);
+ }
+ std::cout << (got_async_burst_ack? "success" : "fail") << std::endl;
+ } while (not stop_signal_called and repeat);
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
diff --git a/host/examples/tx_timed_samples.cpp b/host/examples/tx_timed_samples.cpp
index d33dc13c3..79aa6738c 100644
--- a/host/examples/tx_timed_samples.cpp
+++ b/host/examples/tx_timed_samples.cpp
@@ -91,7 +91,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
size_t samps_to_send = std::min(total_num_samps - num_acc_samps, buff.size());
//ensure the the last packet has EOB set
- md.end_of_burst = samps_to_send <= buff.size();
+ md.end_of_burst = samps_to_send < buff.size();
//send a single packet
size_t num_tx_samps = usrp->get_device()->send(
diff --git a/host/examples/tx_waveforms.cpp b/host/examples/tx_waveforms.cpp
index 5b3a1b70c..f150f520a 100644
--- a/host/examples/tx_waveforms.cpp
+++ b/host/examples/tx_waveforms.cpp
@@ -21,6 +21,7 @@
#include <uhd/usrp/multi_usrp.hpp>
#include <boost/program_options.hpp>
#include <boost/math/special_functions/round.hpp>
+#include <boost/foreach.hpp>
#include <boost/format.hpp>
#include <boost/function.hpp>
#include <iostream>
@@ -119,26 +120,32 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
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;
- usrp->set_tx_freq(freq);
- 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 IF 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;
+ for(size_t chan = 0; chan < usrp->get_tx_num_channels(); chan++) {
+ 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;
+
+ //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;
+ }
+
+ //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;
+ }
+
+ //set the antenna
+ if (vm.count("ant")) usrp->set_tx_antenna(ant, chan);
}
- //set the antenna
- if (vm.count("ant")) usrp->set_tx_antenna(ant);
+ std::cout << boost::format("Setting device timestamp to 0...") << std::endl;
+ usrp->set_time_now(uhd::time_spec_t(0.0));
//for the const wave, set the wave freq for small samples per period
if (wave_freq == 0 and wave_type == "CONST"){
@@ -162,29 +169,35 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
else throw std::runtime_error("unknown waveform type: " + wave_type);
//allocate the buffer and precalculate values
- std::vector<std::complex<float> > buff(spb);
const float cps = float(wave_freq/usrp->get_tx_rate());
const float i_off = (wave_freq > 0)? float(0.25) : 0;
const float q_off = (wave_freq < 0)? float(0.25) : 0;
float theta = 0;
+ std::vector<std::complex<float> *> buffs;
+ for(size_t i=0; i < usrp->get_num_mboards(); i++)
+ buffs.push_back(new std::complex<float>[spb]);
+
//setup the metadata flags
uhd::tx_metadata_t md;
- md.start_of_burst = false; //never SOB when continuous
+ md.start_of_burst = false; //no for continuous streaming
md.end_of_burst = false;
+ md.has_time_spec = true;
+ md.time_spec = uhd::time_spec_t(0.1);
std::signal(SIGINT, &sig_int_handler);
std::cout << "Press Ctrl + C to stop streaming..." << std::endl;
//send data until the signal handler gets called
while(not stop_signal_called){
-
//fill the buffer with the waveform
- for (size_t n = 0; n < buff.size(); n++){
- buff[n] = std::complex<float>(
- ampl*wave_gen(i_off + theta),
- ampl*wave_gen(q_off + theta)
- );
+ for (size_t n = 0; n < spb; n++){
+ BOOST_FOREACH(std::complex<float> *buff, buffs) {
+ buff[n] = std::complex<float>(
+ ampl*wave_gen(i_off + theta),
+ ampl*wave_gen(q_off + theta)
+ );
+ }
theta += cps;
}
@@ -193,14 +206,15 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
//send the entire contents of the buffer
usrp->get_device()->send(
- &buff.front(), buff.size(), md,
+ buffs, spb, md,
uhd::io_type_t::COMPLEX_FLOAT32,
uhd::device::SEND_MODE_FULL_BUFF
);
+
+ md.has_time_spec = false;
}
//send a mini EOB packet
- md.start_of_burst = false;
md.end_of_burst = true;
usrp->get_device()->send("", 0, md,
uhd::io_type_t::COMPLEX_FLOAT32,
@@ -210,5 +224,9 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
//finished
std::cout << std::endl << "Done!" << std::endl << std::endl;
+ BOOST_FOREACH(std::complex<float> *buff, buffs){
+ delete buff;
+ }
+
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-07 23:32:51 +0000