1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
//
// Copyright 2012,2014 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/paths.hpp>
#include <uhd/utils/thread_priority.hpp>
#include <uhd/utils/safe_main.hpp>
#include <uhd/usrp/multi_usrp.hpp>
#include <boost/filesystem.hpp>
#include <boost/program_options.hpp>
#include <boost/format.hpp>
#include <iostream>
#include <complex>
#include <boost/thread.hpp>
#include <string>
#include <cmath>
#include <ctime>
#include <cstdlib>
namespace po = boost::program_options;
namespace fs = boost::filesystem;
void print_notes(void) {
// Helpful notes
std::cout << boost::format("**************************************Helpful Notes on Clock/PPS Selection**************************************\n");
std::cout << boost::format("As you can see, the default 10 MHz Reference and 1 PPS signals are now from the GPSDO.\n");
std::cout << boost::format("If you would like to use the internal reference(TCXO) in other applications, you must configure that explicitly.\n");
std::cout << boost::format("You can no longer select the external SMAs for 10 MHz or 1 PPS signaling.\n");
std::cout << boost::format("****************************************************************************************************************\n");
}
int UHD_SAFE_MAIN(int argc, char *argv[]){
uhd::set_thread_priority_safe();
std::string args;
//Set up program options
po::options_description desc("Allowed options");
desc.add_options()
("help", "help message")
("args", po::value<std::string>(&args)->default_value(""), "Specify a single USRP.")
;
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("Query GPSDO Sensors %s") % desc << std::endl;
return EXIT_FAILURE;
}
//Create a USRP device
std::cout << boost::format("\nCreating the USRP device with: %s...\n") % args;
uhd::usrp::multi_usrp::sptr usrp = uhd::usrp::multi_usrp::make(args);
std::cout << boost::format("Using Device: %s\n") % usrp->get_pp_string();
print_notes();
//Verify GPS sensors are present (i.e. EEPROM has been burnt)
std::vector<std::string> sensor_names = usrp->get_mboard_sensor_names(0);
if(std::find(sensor_names.begin(), sensor_names.end(), "gps_locked") == sensor_names.end()) {
std::cout << boost::format("\ngps_locked sensor not found. This could mean that you have not installed the GPSDO correctly.\n\n");
std::cout << boost::format("Visit one of these pages if the problem persists:\n");
std::cout << boost::format(" * N2X0/E1X0: http://files.ettus.com/manual/page_gpsdo.html");
std::cout << boost::format(" * X3X0: http://files.ettus.com/manual/page_gpsdo_x3x0.html\n\n");
exit(EXIT_FAILURE);
}
//Check for GPS lock
uhd::sensor_value_t gps_locked = usrp->get_mboard_sensor("gps_locked",0);
if(not gps_locked.to_bool()) {
std::cout << boost::format("\nGPS does not have lock. Wait a few minutes and try again.\n");
std::cout << boost::format("NMEA strings and device time may not be accurate until lock is achieved.\n\n");
} else
std::cout << boost::format("GPS Locked\n");
//Check for 10 MHz lock
if(std::find(sensor_names.begin(), sensor_names.end(), "ref_locked") != sensor_names.end()) {
uhd::sensor_value_t gps_locked = usrp->get_mboard_sensor("ref_locked",0);
if(not gps_locked.to_bool()) {
std::cout << boost::format("USRP NOT Locked to GPSDO 10 MHz Reference.\n");
std::cout << boost::format("Double check installation instructions (N2X0/E1X0 only): https://www.ettus.com/content/files/gpsdo-kit_4.pdf\n\n");
} else
std::cout << boost::format("USRP Locked to GPSDO 10 MHz Reference.\n");
}else
std::cout << boost::format("ref_locked sensor not present on this board.\n");
// Explicitly set time source to gpsdo
usrp->set_time_source("gpsdo");
//Check PPS and compare UHD device time to GPS time
boost::this_thread::sleep(boost::posix_time::seconds(1));
uhd::sensor_value_t gps_time = usrp->get_mboard_sensor("gps_time");
const time_t pc_clock_time = time(NULL);
const uhd::time_spec_t last_pps_time = usrp->get_time_last_pps();
if (last_pps_time.to_ticks(1.0) == gps_time.to_int()) {
std::cout << boost::format("GPS and UHD Device time are aligned.\n");
} else {
std::cout << boost::format("\nGPS and UHD Device time are NOT aligned last_pps: %ld vs gps: %ld. Try re-running the program. Double check 1 PPS connection from GPSDO.\n\n") % last_pps_time.to_ticks(1.0) % gps_time.to_int() << std::endl;
}
//print NMEA strings
try {
uhd::sensor_value_t gga_string = usrp->get_mboard_sensor("gps_gpgga");
uhd::sensor_value_t rmc_string = usrp->get_mboard_sensor("gps_gprmc");
std::cout << boost::format("Printing available NMEA strings:\n");
std::cout << boost::format("%s\n%s\n%s\n") % gga_string.to_pp_string() % rmc_string.to_pp_string() % gps_time.to_pp_string();
} catch (std::exception &) {
std::cout << "NMEA strings not implemented for this device." << std::endl;
}
std::cout << boost::format("UHD Device time: %.0f seconds\n") % (last_pps_time.get_real_secs());
std::cout << boost::format("PC Clock time: %.0f seconds\n") % pc_clock_time;
//finished
std::cout << boost::format("\nDone!\n\n");
return EXIT_SUCCESS;
}
|
