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-rw-r--r--host/examples/test_pps_input.cpp86
1 files changed, 86 insertions, 0 deletions
diff --git a/host/examples/test_pps_input.cpp b/host/examples/test_pps_input.cpp
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+//
+// 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;
+ }
+}