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-rw-r--r--host/examples/CMakeLists.txt45
-rw-r--r--host/examples/benchmark_rx_rate.cpp161
-rw-r--r--host/examples/rx_timed_samples.cpp127
-rw-r--r--host/examples/test_async_messages.cpp260
-rw-r--r--host/examples/test_pps_input.cpp86
-rw-r--r--host/examples/tx_timed_samples.cpp110
-rw-r--r--host/examples/tx_waveforms.cpp184
7 files changed, 973 insertions, 0 deletions
diff --git a/host/examples/CMakeLists.txt b/host/examples/CMakeLists.txt
new file mode 100644
index 000000000..d19838335
--- /dev/null
+++ b/host/examples/CMakeLists.txt
@@ -0,0 +1,45 @@
+#
+# Copyright 2010 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/>.
+#
+
+########################################################################
+ADD_EXECUTABLE(benchmark_rx_rate benchmark_rx_rate.cpp)
+TARGET_LINK_LIBRARIES(benchmark_rx_rate uhd)
+
+ADD_EXECUTABLE(rx_timed_samples rx_timed_samples.cpp)
+TARGET_LINK_LIBRARIES(rx_timed_samples uhd)
+
+ADD_EXECUTABLE(test_async_messages test_async_messages.cpp)
+TARGET_LINK_LIBRARIES(test_async_messages uhd)
+
+ADD_EXECUTABLE(test_pps_input test_pps_input.cpp)
+TARGET_LINK_LIBRARIES(test_pps_input uhd)
+
+ADD_EXECUTABLE(tx_timed_samples tx_timed_samples.cpp)
+TARGET_LINK_LIBRARIES(tx_timed_samples uhd)
+
+ADD_EXECUTABLE(tx_waveforms tx_waveforms.cpp)
+TARGET_LINK_LIBRARIES(tx_waveforms uhd)
+
+INSTALL(TARGETS
+ benchmark_rx_rate
+ rx_timed_samples
+ test_async_messages
+ test_pps_input
+ tx_timed_samples
+ tx_waveforms
+ RUNTIME DESTINATION ${PKG_DATA_DIR}/examples
+)
diff --git a/host/examples/benchmark_rx_rate.cpp b/host/examples/benchmark_rx_rate.cpp
new file mode 100644
index 000000000..36611f97f
--- /dev/null
+++ b/host/examples/benchmark_rx_rate.cpp
@@ -0,0 +1,161 @@
+//
+// Copyright 2010 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/single_usrp.hpp>
+#include <boost/math/special_functions/round.hpp>
+#include <boost/program_options.hpp>
+#include <boost/format.hpp>
+#include <iostream>
+#include <complex>
+
+namespace po = boost::program_options;
+
+static inline void test_device(
+ uhd::usrp::single_usrp::sptr sdev,
+ double rx_rate_sps,
+ double duration_secs
+){
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << boost::format("Testing receive rate %f Msps (%f second run)") % (rx_rate_sps/1e6) % duration_secs << std::endl;
+
+ //allocate recv buffer and metatdata
+ uhd::rx_metadata_t md;
+ std::vector<std::complex<float> > buff(dev->get_max_recv_samps_per_packet());
+
+ //flush the buffers in the recv path
+ while(dev->recv(
+ &buff.front(), buff.size(), md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::RECV_MODE_ONE_PACKET
+ )){
+ /* NOP */
+ };
+
+ //declare status variables
+ bool got_first_packet = false;
+ size_t total_recv_packets = 0;
+ size_t total_lost_samples = 0;
+ size_t total_recv_samples = 0;
+ uhd::time_spec_t initial_time_spec;
+ uhd::time_spec_t next_expected_time_spec;
+
+ sdev->issue_stream_cmd(uhd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS);
+ do {
+ size_t num_rx_samps = dev->recv(
+ &buff.front(), buff.size(), md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::RECV_MODE_ONE_PACKET
+ );
+
+ //handle the error codes
+ switch(md.error_code){
+ case uhd::rx_metadata_t::ERROR_CODE_NONE:
+ case uhd::rx_metadata_t::ERROR_CODE_OVERFLOW:
+ break;
+
+ default:
+ std::cerr << "Unexpected error on recv, exit test..." << std::endl;
+ return;
+ }
+
+ if (not md.has_time_spec){
+ std::cerr << "Metadata missing time spec, exit test..." << std::endl;
+ return;
+ }
+
+ total_recv_samples += num_rx_samps;
+ total_recv_packets++;
+
+ if (not got_first_packet){
+ initial_time_spec = md.time_spec;
+ next_expected_time_spec = initial_time_spec;
+ got_first_packet = true;
+ }
+
+ total_lost_samples += boost::math::iround(rx_rate_sps*(md.time_spec - next_expected_time_spec).get_real_secs());
+ next_expected_time_spec = md.time_spec + uhd::time_spec_t(0, num_rx_samps, rx_rate_sps);
+
+ } while((next_expected_time_spec - initial_time_spec) < uhd::time_spec_t(duration_secs));
+ sdev->issue_stream_cmd(uhd::stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS);
+
+ //print a summary
+ std::cout << std::endl; //go to newline, recv may spew SXSYSZ...
+ std::cout << boost::format(" Received packets: %d") % total_recv_packets << std::endl;
+ std::cout << boost::format(" Received samples: %d") % total_recv_samples << std::endl;
+ std::cout << boost::format(" Lost samples: %d") % total_lost_samples << std::endl;
+ size_t packets_lost = boost::math::iround(double(total_lost_samples)/dev->get_max_recv_samps_per_packet());
+ std::cout << boost::format(" Lost packets: %d (approximate)") % packets_lost << std::endl;
+ double actual_rx_rate_sps = (total_recv_samples*rx_rate_sps)/(total_recv_samples+total_lost_samples);
+ std::cout << boost::format(" Sustained receive rate: %f Msps") % (actual_rx_rate_sps/1e6) << std::endl;
+ std::cout << std::endl << std::endl;
+}
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ double duration;
+ double only_rate;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ ("duration", po::value<double>(&duration)->default_value(10.0), "duration for each test in seconds")
+ ("rate", po::value<double>(&only_rate), "specify to perform a single test as this rate (sps)")
+ ;
+ 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 Benchmark RX Rate %s") % desc << std::endl;
+ return ~0;
+ }
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+ sdev->issue_stream_cmd(uhd::stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS); //stop if left running
+
+ if (not vm.count("rate")){
+ sdev->set_rx_rate(500e3); //initial rate
+ while(true){
+ double rate = sdev->get_rx_rate();
+ test_device(sdev, rate, duration);
+ sdev->set_rx_rate(rate*2); //double the rate
+ if (sdev->get_rx_rate() == rate) break;
+ }
+ }
+ else{
+ sdev->set_rx_rate(only_rate);
+ double rate = sdev->get_rx_rate();
+ test_device(sdev, rate, duration);
+ }
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
diff --git a/host/examples/rx_timed_samples.cpp b/host/examples/rx_timed_samples.cpp
new file mode 100644
index 000000000..441665900
--- /dev/null
+++ b/host/examples/rx_timed_samples.cpp
@@ -0,0 +1,127 @@
+//
+// Copyright 2010 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/single_usrp.hpp>
+#include <boost/program_options.hpp>
+#include <boost/format.hpp>
+#include <iostream>
+#include <complex>
+
+namespace po = boost::program_options;
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ time_t seconds_in_future;
+ size_t total_num_samps;
+ double rx_rate, freq;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ ("secs", po::value<time_t>(&seconds_in_future)->default_value(3), "number of seconds in the future to receive")
+ ("nsamps", po::value<size_t>(&total_num_samps)->default_value(1000), "total number of samples to receive")
+ ("rxrate", po::value<double>(&rx_rate)->default_value(100e6/16), "rate of incoming samples")
+ ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
+ ("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 RX Timed Samples %s") % desc << std::endl;
+ return ~0;
+ }
+
+ bool verbose = vm.count("dilv") == 0;
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set properties on the device
+ std::cout << boost::format("Setting RX Rate: %f Msps...") % (rx_rate/1e6) << std::endl;
+ sdev->set_rx_rate(rx_rate);
+ std::cout << boost::format("Actual RX Rate: %f Msps...") % (sdev->get_rx_rate()/1e6) << std::endl;
+ std::cout << boost::format("Setting device timestamp to 0...") << std::endl;
+ sdev->set_rx_freq(freq);
+ sdev->set_time_now(uhd::time_spec_t(0.0));
+
+ //setup streaming
+ std::cout << std::endl;
+ std::cout << boost::format(
+ "Begin streaming %u samples, %d seconds in the future..."
+ ) % total_num_samps % seconds_in_future << std::endl;
+ uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_NUM_SAMPS_AND_DONE);
+ stream_cmd.num_samps = total_num_samps;
+ stream_cmd.stream_now = false;
+ stream_cmd.time_spec = uhd::time_spec_t(seconds_in_future);
+ sdev->issue_stream_cmd(stream_cmd);
+
+ //loop until total number of samples reached
+ size_t num_acc_samps = 0; //number of accumulated samples
+ while(num_acc_samps < total_num_samps){
+ uhd::rx_metadata_t md;
+ std::vector<std::complex<float> > buff(dev->get_max_recv_samps_per_packet());
+ size_t num_rx_samps = dev->recv(
+ &buff.front(), buff.size(), md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::RECV_MODE_ONE_PACKET
+ );
+
+ //handle the error codes
+ switch(md.error_code){
+ case uhd::rx_metadata_t::ERROR_CODE_NONE:
+ break;
+
+ case uhd::rx_metadata_t::ERROR_CODE_TIMEOUT:
+ if (num_acc_samps == 0) continue;
+ std::cout << boost::format(
+ "Got timeout before all samples received, possible packet loss, exiting loop..."
+ ) << std::endl;
+ goto done_loop;
+
+ default:
+ std::cout << boost::format(
+ "Got error code 0x%x, exiting loop..."
+ ) % md.error_code << std::endl;
+ goto done_loop;
+ }
+
+ if(verbose) std::cout << boost::format(
+ "Got packet: %u samples, %u full secs, %f frac secs"
+ ) % num_rx_samps % md.time_spec.get_full_secs() % md.time_spec.get_frac_secs() << std::endl;
+
+ num_acc_samps += num_rx_samps;
+ } done_loop:
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
diff --git a/host/examples/test_async_messages.cpp b/host/examples/test_async_messages.cpp
new file mode 100644
index 000000000..61db7ec04
--- /dev/null
+++ b/host/examples/test_async_messages.cpp
@@ -0,0 +1,260 @@
+//
+// Copyright 2010 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/utils/static.hpp>
+#include <uhd/usrp/single_usrp.hpp>
+#include <boost/assign/list_of.hpp>
+#include <boost/program_options.hpp>
+#include <boost/foreach.hpp>
+#include <boost/bind.hpp>
+#include <boost/format.hpp>
+#include <cstdlib>
+#include <complex>
+#include <iostream>
+
+namespace po = boost::program_options;
+
+/*!
+ * Test the eob ack message:
+ * Send a burst of many samples that will fragment internally.
+ * We expect to get an eob ack async message.
+ */
+bool test_eob_ack_message(uhd::usrp::single_usrp::sptr sdev){
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << "Test eob ack message... " << std::flush;
+
+ uhd::tx_metadata_t md;
+ md.start_of_burst = true;
+ md.end_of_burst = true;
+ md.has_time_spec = false;
+
+ //3 times max-sps guarantees a SOB, no burst, and EOB packet
+ std::vector<std::complex<float> > buff(dev->get_max_send_samps_per_packet()*3);
+
+ dev->send(
+ &buff.front(), buff.size(), md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::SEND_MODE_FULL_BUFF
+ );
+
+ uhd::async_metadata_t async_md;
+ if (not dev->recv_async_msg(async_md)){
+ std::cout << boost::format(
+ "failed:\n"
+ " Async message recv timed out.\n"
+ ) << std::endl;
+ return false;
+ }
+
+ switch(async_md.event_code){
+ case uhd::async_metadata_t::EVENT_CODE_EOB_ACK:
+ std::cout << boost::format(
+ "success:\n"
+ " Got event code eob ack message.\n"
+ ) << std::endl;
+ return true;
+
+ default:
+ std::cout << boost::format(
+ "failed:\n"
+ " Got unexpected event code 0x%x.\n"
+ ) % async_md.event_code << std::endl;
+ return false;
+ }
+}
+
+/*!
+ * Test the underflow message:
+ * Send a start of burst packet with no following end of burst.
+ * We expect to get an underflow(within a burst) async message.
+ */
+bool test_underflow_message(uhd::usrp::single_usrp::sptr sdev){
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << "Test underflow message... " << std::flush;
+
+ uhd::tx_metadata_t md;
+ md.start_of_burst = true;
+ md.end_of_burst = false;
+ md.has_time_spec = false;
+
+ dev->send(
+ NULL, 0, md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::SEND_MODE_FULL_BUFF
+ );
+
+ uhd::async_metadata_t async_md;
+ if (not dev->recv_async_msg(async_md, 1)){
+ std::cout << boost::format(
+ "failed:\n"
+ " Async message recv timed out.\n"
+ ) << std::endl;
+ return false;
+ }
+
+ switch(async_md.event_code){
+ case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW:
+ std::cout << boost::format(
+ "success:\n"
+ " Got event code underflow message.\n"
+ ) << std::endl;
+ return true;
+
+ default:
+ std::cout << boost::format(
+ "failed:\n"
+ " Got unexpected event code 0x%x.\n"
+ ) % async_md.event_code << std::endl;
+ return false;
+ }
+}
+
+/*!
+ * Test the time error message:
+ * Send a burst packet that occurs at a time in the past.
+ * We expect to get a time error async message.
+ */
+bool test_time_error_message(uhd::usrp::single_usrp::sptr sdev){
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << "Test time error message... " << std::flush;
+
+ uhd::tx_metadata_t md;
+ md.start_of_burst = true;
+ md.end_of_burst = true;
+ md.has_time_spec = true;
+ md.time_spec = uhd::time_spec_t(100.0); //send at 100s
+
+ sdev->set_time_now(uhd::time_spec_t(200.0)); //time at 200s
+
+ dev->send(
+ NULL, 0, md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::SEND_MODE_FULL_BUFF
+ );
+
+ uhd::async_metadata_t async_md;
+ if (not dev->recv_async_msg(async_md)){
+ std::cout << boost::format(
+ "failed:\n"
+ " Async message recv timed out.\n"
+ ) << std::endl;
+ return false;
+ }
+
+ switch(async_md.event_code){
+ case uhd::async_metadata_t::EVENT_CODE_TIME_ERROR:
+ std::cout << boost::format(
+ "success:\n"
+ " Got event code time error message.\n"
+ ) << std::endl;
+ return true;
+
+ default:
+ std::cout << boost::format(
+ "failed:\n"
+ " Got unexpected event code 0x%x.\n"
+ ) % async_md.event_code << std::endl;
+ return false;
+ }
+}
+
+void flush_async_md(uhd::usrp::single_usrp::sptr sdev){
+ uhd::device::sptr dev = sdev->get_device();
+ uhd::async_metadata_t async_md;
+ while (dev->recv_async_msg(async_md, 1.0)){}
+}
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ double rate;
+ size_t ntests;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ ("rate", po::value<double>(&rate)->default_value(1.5e6), "rate of outgoing samples")
+ ("ntests", po::value<size_t>(&ntests)->default_value(10), "number of tests to run")
+ ;
+ 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 Test Async Messages %s") % desc << std::endl;
+ return ~0;
+ }
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set the tx sample rate
+ std::cout << boost::format("Setting TX Rate: %f Msps...") % (rate/1e6) << std::endl;
+ sdev->set_tx_rate(rate);
+ std::cout << boost::format("Actual TX Rate: %f Msps...") % (sdev->get_tx_rate()/1e6) << std::endl << std::endl;
+
+ //------------------------------------------------------------------
+ // begin asyc messages test
+ //------------------------------------------------------------------
+ static const uhd::dict<std::string, boost::function<bool(uhd::usrp::single_usrp::sptr)> >
+ tests = boost::assign::map_list_of
+ ("Test EOB ACK ", &test_eob_ack_message)
+ ("Test Underflow ", &test_underflow_message)
+ ("Test Time Error", &test_time_error_message)
+ ;
+
+ //init result counts
+ uhd::dict<std::string, size_t> failures, successes;
+ BOOST_FOREACH(const std::string &key, tests.keys()){
+ failures[key] = 0;
+ successes[key] = 0;
+ }
+
+ //run the tests, pick at random
+ for (size_t n = 0; n < ntests; n++){
+ std::string key = tests.keys()[std::rand() % tests.size()];
+ bool pass = tests[key](sdev);
+ flush_async_md(sdev);
+
+ //store result
+ if (pass) successes[key]++;
+ else failures[key]++;
+ }
+
+ //print the result summary
+ std::cout << std::endl << "Summary:" << std::endl << std::endl;
+ BOOST_FOREACH(const std::string &key, tests.keys()){
+ std::cout << boost::format(
+ "%s -> %3d successes, %3d failures"
+ ) % key % successes[key] % failures[key] << std::endl;
+ }
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
diff --git a/host/examples/test_pps_input.cpp b/host/examples/test_pps_input.cpp
new file mode 100644
index 000000000..4b2bb62a3
--- /dev/null
+++ b/host/examples/test_pps_input.cpp
@@ -0,0 +1,86 @@
+//
+// Copyright 2010 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/single_usrp.hpp>
+#include <boost/program_options.hpp>
+#include <boost/format.hpp>
+#include <boost/thread.hpp>
+#include <iostream>
+#include <complex>
+
+namespace po = boost::program_options;
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ double seconds;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ ;
+ 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 Test PPS Input %s") % desc << std::endl;
+ return ~0;
+ }
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set a known time value
+ std::cout << "Set time to known value (100.0) without regard to pps:" << std::endl;
+ sdev->set_time_now(uhd::time_spec_t(100.0));
+ boost::this_thread::sleep(boost::posix_time::seconds(1));
+ std::cout << boost::format("Reading time 1 second later: %f\n") % (sdev->get_time_now().get_real_secs()) << std::endl;
+
+ //store the time to see if PPS resets it
+ seconds = sdev->get_time_now().get_real_secs();
+
+ //set a known time at next PPS, check that time increments
+ uhd::time_spec_t time_spec = uhd::time_spec_t(0.0);
+ std::cout << "Set time to known value (0.0) at next pps:" << std::endl;
+ sdev->set_time_next_pps(time_spec);
+ boost::this_thread::sleep(boost::posix_time::seconds(1));
+ std::cout << boost::format("Reading time 1 second later: %f\n") % (sdev->get_time_now().get_real_secs()) << std::endl;
+
+ //finished
+ if (seconds > sdev->get_time_now().get_real_secs()){
+ std::cout << std::endl << "Success!" << std::endl << std::endl;
+ return 0;
+ } else {
+ std::cout << std::endl << "Failed!" << std::endl << std::endl
+ << "If you expected PPS to work:" << std::endl
+ << "\tsee Device App Notes for PPS level information"
+ << std::endl << std::endl;
+ return -1;
+ }
+}
diff --git a/host/examples/tx_timed_samples.cpp b/host/examples/tx_timed_samples.cpp
new file mode 100644
index 000000000..863446682
--- /dev/null
+++ b/host/examples/tx_timed_samples.cpp
@@ -0,0 +1,110 @@
+//
+// Copyright 2010 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/single_usrp.hpp>
+#include <boost/program_options.hpp>
+#include <boost/format.hpp>
+#include <iostream>
+#include <complex>
+
+namespace po = boost::program_options;
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args;
+ time_t seconds_in_future;
+ size_t total_num_samps;
+ size_t samps_per_packet;
+ double tx_rate, freq;
+ float ampl;
+
+ //setup the program options
+ po::options_description desc("Allowed options");
+ desc.add_options()
+ ("help", "help message")
+ ("args", po::value<std::string>(&args)->default_value(""), "single uhd device address args")
+ ("secs", po::value<time_t>(&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")
+ ("spp", po::value<size_t>(&samps_per_packet)->default_value(1000), "number of samples per packet")
+ ("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>(&ampl)->default_value(float(0.3)), "amplitude of each sample")
+ ("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;
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set properties on the device
+ std::cout << boost::format("Setting TX Rate: %f Msps...") % (tx_rate/1e6) << std::endl;
+ sdev->set_tx_rate(tx_rate);
+ std::cout << boost::format("Actual TX Rate: %f Msps...") % (sdev->get_tx_rate()/1e6) << std::endl;
+ std::cout << boost::format("Setting device timestamp to 0...") << std::endl;
+ sdev->set_tx_freq(freq);
+ sdev->set_time_now(uhd::time_spec_t(0.0));
+
+ //allocate data to send
+ std::vector<std::complex<float> > buff(samps_per_packet, std::complex<float>(ampl, ampl));
+
+ //send the data in multiple packets
+ 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
+ uhd::tx_metadata_t md;
+ md.start_of_burst = true; //always SOB (good for continuous streaming)
+ 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);
+
+ size_t samps_to_send = std::min(total_num_samps - samps_per_packet*i, samps_per_packet);
+
+ //send the entire packet (driver fragments internally)
+ size_t num_tx_samps = dev->send(
+ &buff.front(), samps_to_send, md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::SEND_MODE_FULL_BUFF,
+ //send will backup into the host this many seconds before sending:
+ seconds_in_future + 0.1 //timeout (delay before transmit + padding)
+ );
+ if (num_tx_samps < samps_to_send) std::cout << "Send timeout..." << std::endl;
+ if(verbose) std::cout << std::endl << boost::format("Sent %d samples") % num_tx_samps << std::endl;
+ }
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
diff --git a/host/examples/tx_waveforms.cpp b/host/examples/tx_waveforms.cpp
new file mode 100644
index 000000000..50982cf88
--- /dev/null
+++ b/host/examples/tx_waveforms.cpp
@@ -0,0 +1,184 @@
+//
+// Copyright 2010 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/utils/static.hpp>
+#include <uhd/usrp/single_usrp.hpp>
+#include <boost/program_options.hpp>
+#include <boost/thread/thread_time.hpp> //system time
+#include <boost/math/special_functions/round.hpp>
+#include <boost/format.hpp>
+#include <boost/function.hpp>
+#include <iostream>
+#include <complex>
+#include <cmath>
+
+namespace po = boost::program_options;
+
+/***********************************************************************
+ * Waveform generators
+ **********************************************************************/
+float gen_const(float){
+ return 1;
+}
+
+float gen_square(float x){
+ return float((std::fmod(x, 1) < float(0.5))? 0 : 1);
+}
+
+float gen_ramp(float x){
+ return std::fmod(x, 1)*2 - 1;
+}
+
+#define sine_table_len 2048
+static float sine_table[sine_table_len];
+UHD_STATIC_BLOCK(gen_sine_table){
+ static const float m_pi = std::acos(float(-1));
+ for (size_t i = 0; i < sine_table_len; i++)
+ sine_table[i] = std::sin((2*m_pi*i)/sine_table_len);
+}
+
+float gen_sine(float x){
+ return sine_table[size_t(x*sine_table_len)%sine_table_len];
+}
+
+int UHD_SAFE_MAIN(int argc, char *argv[]){
+ uhd::set_thread_priority_safe();
+
+ //variables to be set by po
+ std::string args, wave_type;
+ size_t total_duration, spb;
+ double rate, freq, wave_freq;
+ float ampl, 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(""), "single uhd device address args")
+ ("duration", po::value<size_t>(&total_duration)->default_value(3), "number of seconds to transmit")
+ ("spb", po::value<size_t>(&spb)->default_value(10000), "samples per buffer")
+ ("rate", po::value<double>(&rate)->default_value(1.5e6), "rate of outgoing samples")
+ ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
+ ("ampl", po::value<float>(&ampl)->default_value(float(0.3)), "amplitude of the waveform")
+ ("gain", po::value<float>(&gain)->default_value(float(0)), "gain for the RF chain")
+ ("wave-type", po::value<std::string>(&wave_type)->default_value("CONST"), "waveform type (CONST, SQUARE, RAMP, SINE)")
+ ("wave-freq", po::value<double>(&wave_freq)->default_value(0), "waveform frequency in Hz")
+ ;
+ 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 Waveforms %s") % desc << std::endl;
+ return ~0;
+ }
+
+ //create a usrp device
+ std::cout << std::endl;
+ std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;
+ uhd::usrp::single_usrp::sptr sdev = uhd::usrp::single_usrp::make(args);
+ uhd::device::sptr dev = sdev->get_device();
+ std::cout << boost::format("Using Device: %s") % sdev->get_pp_string() << std::endl;
+
+ //set the tx sample rate
+ std::cout << boost::format("Setting TX Rate: %f Msps...") % (rate/1e6) << std::endl;
+ sdev->set_tx_rate(rate);
+ std::cout << boost::format("Actual TX Rate: %f Msps...") % (sdev->get_tx_rate()/1e6) << std::endl << std::endl;
+
+ //set the tx center frequency
+ std::cout << boost::format("Setting TX Freq: %f Mhz...") % (freq/1e6) << std::endl;
+ sdev->set_tx_freq(freq);
+ std::cout << boost::format("Actual TX Freq: %f Mhz...") % (sdev->get_tx_freq()/1e6) << std::endl << std::endl;
+
+ //set the tx rf gain
+ std::cout << boost::format("Setting TX Gain: %f dB...") % gain << std::endl;
+ sdev->set_tx_gain(gain);
+ std::cout << boost::format("Actual TX Gain: %f dB...") % sdev->get_tx_gain() << std::endl << std::endl;
+
+ //for the const wave, set the wave freq for small samples per period
+ if (wave_freq == 0 and wave_type == "CONST"){
+ wave_freq = sdev->get_tx_rate()/2;
+ }
+
+ //error when the waveform is not possible to generate
+ if (std::abs(wave_freq) > sdev->get_tx_rate()/2){
+ throw std::runtime_error("wave freq out of Nyquist zone");
+ }
+ if (sdev->get_tx_rate()/std::abs(wave_freq) > sine_table_len/2 and wave_type == "SINE"){
+ throw std::runtime_error("sine freq too small for table");
+ }
+
+ //store the generator function for the selected waveform
+ boost::function<float(float)> wave_gen;
+ if (wave_type == "CONST") wave_gen = &gen_const;
+ else if (wave_type == "SQUARE") wave_gen = &gen_square;
+ else if (wave_type == "RAMP") wave_gen = &gen_ramp;
+ else if (wave_type == "SINE") wave_gen = &gen_sine;
+ 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/sdev->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;
+
+ //setup the metadata flags
+ uhd::tx_metadata_t md;
+ md.start_of_burst = true; //always SOB (good for continuous streaming)
+ md.end_of_burst = false;
+
+ //send the data in multiple packets
+ boost::system_time end_time(boost::get_system_time() + boost::posix_time::seconds(total_duration));
+ while(end_time > boost::get_system_time()){
+
+ //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)
+ );
+ theta += cps;
+ }
+
+ //bring the theta back into range [0, 1)
+ theta = std::fmod(theta, 1);
+
+ //send the entire contents of the buffer
+ dev->send(
+ &buff.front(), buff.size(), md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::SEND_MODE_FULL_BUFF
+ );
+ }
+
+ //send a mini EOB packet
+ md.start_of_burst = false;
+ md.end_of_burst = true;
+ dev->send(NULL, 0, md,
+ uhd::io_type_t::COMPLEX_FLOAT32,
+ uhd::device::SEND_MODE_FULL_BUFF
+ );
+
+ //finished
+ std::cout << std::endl << "Done!" << std::endl << std::endl;
+
+ return 0;
+}
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