aboutsummaryrefslogtreecommitdiffstats
path: root/host/examples/twinrx_freq_hopping.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'host/examples/twinrx_freq_hopping.cpp')
-rw-r--r--host/examples/twinrx_freq_hopping.cpp101
1 files changed, 55 insertions, 46 deletions
diff --git a/host/examples/twinrx_freq_hopping.cpp b/host/examples/twinrx_freq_hopping.cpp
index f4ce3e528..ea350928c 100644
--- a/host/examples/twinrx_freq_hopping.cpp
+++ b/host/examples/twinrx_freq_hopping.cpp
@@ -7,15 +7,12 @@
// FFT conversion
#include "ascii_art_dft.hpp"
-
-#include <uhd/utils/thread.hpp>
-#include <uhd/utils/safe_main.hpp>
#include <uhd/usrp/multi_usrp.hpp>
-
+#include <uhd/utils/safe_main.hpp>
+#include <uhd/utils/thread.hpp>
#include <boost/program_options.hpp>
#include <boost/thread.hpp>
#include <boost/thread/thread_time.hpp>
-
#include <fstream>
/*
@@ -23,8 +20,8 @@
* motherboard and a TwinRX daughterboard.
*
* The TwinRX daughterboard is different than previous daughterboards in that it has two
- * RX channels, each with a set of Local Oscillators (LOs). Either channel can be configured
- * to use either LO set, allowing for the two channels to share an LO source.
+ * RX channels, each with a set of Local Oscillators (LOs). Either channel can be
+ * configured to use either LO set, allowing for the two channels to share an LO source.
*
* The TwinRX can be used like any other daughterboard, as the multi_usrp::set_rx_freq()
* function will automatically calculate and set the two LO frequencies as needed.
@@ -35,7 +32,8 @@
*
* 1. Tune across the given frequency range, storing the calculated LO frequencies along
* the way.
- * 2. Use timed commands to tell the TwinRX to receive bursts of samples at given intervals.
+ * 2. Use timed commands to tell the TwinRX to receive bursts of samples at given
+ * intervals.
* 3. For each frequency, tune the LOs for the inactive channel for the next frequency and
* receive at the current frequency.
* 4. If applicable, send the next timed command for streaming.
@@ -44,7 +42,7 @@
namespace pt = boost::posix_time;
namespace po = boost::program_options;
-typedef std::vector<std::complex<float> > recv_buff_t;
+typedef std::vector<std::complex<float>> recv_buff_t;
typedef std::vector<recv_buff_t> recv_buffs_t;
// Global objects
@@ -67,8 +65,8 @@ const int X300_COMMAND_FIFO_DEPTH = 16;
// This is a helper function for receiving samples from the USRP
-static void twinrx_recv(recv_buff_t &buffer) {
-
+static void twinrx_recv(recv_buff_t& buffer)
+{
size_t num_acc_samps = 0;
uhd::rx_metadata_t md;
@@ -77,9 +75,10 @@ static void twinrx_recv(recv_buff_t &buffer) {
size_t num_to_recv = std::min<size_t>(recv_spb, (spb - num_acc_samps));
// recv call will block until samples are ready or the call times out
- size_t num_recvd = rx_stream->recv(&buffer[num_acc_samps], num_to_recv, md, receive_interval);
+ size_t num_recvd =
+ rx_stream->recv(&buffer[num_acc_samps], num_to_recv, md, receive_interval);
- if(md.error_code != uhd::rx_metadata_t::ERROR_CODE_NONE) {
+ if (md.error_code != uhd::rx_metadata_t::ERROR_CODE_NONE) {
std::cout << md.strerror() << std::endl;
break;
}
@@ -88,18 +87,20 @@ static void twinrx_recv(recv_buff_t &buffer) {
}
// Function to write the acquisition FFT to a binary file
-static void write_fft_to_file(const std::string &fft_path) {
+static void write_fft_to_file(const std::string& fft_path)
+{
std::cout << "Calculating FFTs (this may take a while)... " << std::flush;
std::ofstream ofile(fft_path.c_str(), std::ios::binary);
- BOOST_FOREACH(const recv_buff_t &buff, buffs) {
- std::vector<float> fft = ascii_art_dft::log_pwr_dft(&buff.front(), buff.size());
- ofile.write((char*)&fft[0], (sizeof(float)*fft.size()));
- }
+ BOOST_FOREACH (const recv_buff_t& buff, buffs) {
+ std::vector<float> fft = ascii_art_dft::log_pwr_dft(&buff.front(), buff.size());
+ ofile.write((char*)&fft[0], (sizeof(float) * fft.size()));
+ }
ofile.close();
std::cout << "done." << std::endl;
}
-int UHD_SAFE_MAIN(int argc, char *argv[]){
+int UHD_SAFE_MAIN(int argc, char* argv[])
+{
uhd::set_thread_priority_safe();
// Program options
@@ -129,22 +130,25 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
po::store(po::parse_command_line(argc, argv, desc), vm);
po::notify(vm);
- if(vm.count("help")) {
+ if (vm.count("help")) {
std::cout << "TwinRX Frequency Hopping Example - " << desc << std::endl;
return EXIT_SUCCESS;
}
// Create a USRP device
- std::cout << boost::format("\nCreating the USRP device with args: \"%s\"...\n") % args;
+ std::cout << boost::format("\nCreating the USRP device with args: \"%s\"...\n")
+ % args;
usrp = uhd::usrp::multi_usrp::make(args);
// Make sure the USRP is an X3xx with a TwinRX
uhd::dict<std::string, std::string> info = usrp->get_usrp_rx_info();
- if(info.get("mboard_id").find("X3") == std::string::npos) {
- throw uhd::runtime_error("This example can only be used with an X-Series motherboard.");
+ if (info.get("mboard_id").find("X3") == std::string::npos) {
+ throw uhd::runtime_error(
+ "This example can only be used with an X-Series motherboard.");
}
- if(info.get("rx_id").find("TwinRX") == std::string::npos) {
- throw uhd::runtime_error("This example can only be used with a TwinRX daughterboard.");
+ if (info.get("rx_id").find("TwinRX") == std::string::npos) {
+ throw uhd::runtime_error(
+ "This example can only be used with a TwinRX daughterboard.");
}
// Validate frequency range
@@ -156,26 +160,31 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
end_freq = rx_freq_range.stop();
}
if (start_freq < rx_freq_range.start() or end_freq > rx_freq_range.stop()) {
- throw uhd::runtime_error((boost::format("Start and stop frequencies must be between %d and %d MHz")
- % (rx_freq_range.start() / 1e6) % (rx_freq_range.stop() / 1e6)).str());
+ throw uhd::runtime_error(
+ (boost::format("Start and stop frequencies must be between %d and %d MHz")
+ % (rx_freq_range.start() / 1e6) % (rx_freq_range.stop() / 1e6))
+ .str());
}
if (start_freq > end_freq) {
throw uhd::runtime_error("Start frequency must be less than end frequency.");
}
if ((end_freq - start_freq) > 0 and (end_freq - start_freq) < rate) {
- throw uhd::runtime_error("The sample rate must be less than the range between the start and end frequencies.");
+ throw uhd::runtime_error("The sample rate must be less than the range between "
+ "the start and end frequencies.");
}
// Set TwinRX settings
usrp->set_rx_subdev_spec(subdev);
- // Set the unused channel to not use any LOs. This allows the active channel to control them.
+ // Set the unused channel to not use any LOs. This allows the active channel to
+ // control them.
usrp->set_rx_lo_source("disabled", uhd::usrp::multi_usrp::ALL_LOS, UNUSED_CHAN);
// Set user settings
std::cout << boost::format("Setting antenna to: %s\n") % ant;
usrp->set_rx_antenna(ant, ACTIVE_CHAN);
- std::cout << boost::format("Actual antenna: %s\n") % usrp->get_rx_antenna(ACTIVE_CHAN);
+ std::cout << boost::format("Actual antenna: %s\n")
+ % usrp->get_rx_antenna(ACTIVE_CHAN);
std::cout << boost::format("Setting sample rate to: %d\n") % rate;
usrp->set_rx_rate(rate);
@@ -189,7 +198,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
uhd::stream_args_t stream_args("fc32", "sc16");
stream_args.channels.push_back(0);
rx_stream = usrp->get_rx_stream(stream_args);
- recv_spb = rx_stream->get_max_num_samps();
+ recv_spb = rx_stream->get_max_num_samps();
// Calculate the frequency hops
for (double rx_freq = start_freq; rx_freq <= end_freq; rx_freq += rate) {
@@ -204,10 +213,11 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
usrp->set_rx_freq(rf_freqs[0], ACTIVE_CHAN);
usrp->set_time_now(uhd::time_spec_t(0.0));
- // Configure the stream command which will be issued to acquire samples at each frequency
- stream_cmd.num_samps = spb;
+ // Configure the stream command which will be issued to acquire samples at each
+ // frequency
+ stream_cmd.num_samps = spb;
stream_cmd.stream_now = false;
- stream_cmd.time_spec = uhd::time_spec_t(0.0);
+ stream_cmd.time_spec = uhd::time_spec_t(0.0);
// Stream commands will be scheduled at regular intervals
uhd::time_spec_t receive_interval_ts = uhd::time_spec_t(receive_interval);
@@ -216,14 +226,14 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
size_t num_initial_cmds = std::min<size_t>(X300_COMMAND_FIFO_DEPTH, rf_freqs.size());
size_t num_issued_commands;
- for (num_issued_commands = 0; num_issued_commands < num_initial_cmds; num_issued_commands++) {
+ for (num_issued_commands = 0; num_issued_commands < num_initial_cmds;
+ num_issued_commands++) {
stream_cmd.time_spec += receive_interval_ts;
rx_stream->issue_stream_cmd(stream_cmd);
}
// Hop frequencies and acquire bursts of samples at each until done sweeping
- while(1) {
-
+ while (1) {
std::cout << "Scanning..." << std::endl;
auto start_time = boost::get_system_time();
@@ -234,11 +244,12 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
usrp->set_rx_lo_source(lo_src, uhd::usrp::multi_usrp::ALL_LOS, ACTIVE_CHAN);
// Preconfigure the next frequency
- usrp->set_rx_freq(rf_freqs[(i+1) % rf_freqs.size()], UNUSED_CHAN);
+ usrp->set_rx_freq(rf_freqs[(i + 1) % rf_freqs.size()], UNUSED_CHAN);
// Program the current frequency
- // This frequency was already pre-programmed in the previous iteration so the local oscillators
- // are already tuned. This call will only configure front-end filter, amplifiers, etc
+ // This frequency was already pre-programmed in the previous iteration so the
+ // local oscillators are already tuned. This call will only configure
+ // front-end filter, amplifiers, etc
usrp->set_rx_freq(rf_freqs[i], ACTIVE_CHAN);
// Receive one burst of samples
@@ -253,16 +264,15 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
}
auto end_time = boost::get_system_time();
- std::cout
- << boost::format("Sweep done in %d milliseconds.\n")
- % ((end_time - start_time).total_milliseconds() * 1000);
+ std::cout << boost::format("Sweep done in %d milliseconds.\n")
+ % ((end_time - start_time).total_milliseconds() * 1000);
// Optionally convert received samples to FFT and write to file
- if(vm.count("fft-path")) {
+ if (vm.count("fft-path")) {
write_fft_to_file(fft_path);
}
- if (!vm.count("repeat")){
+ if (!vm.count("repeat")) {
break;
}
}
@@ -272,4 +282,3 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
usrp.reset();
return EXIT_SUCCESS;
}
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 08:29:58 +0000