uhd: a lot of tweaking, new parameters, and sig handler for to/from file examples

1 files changed, 43 insertions, 16 deletions

diff --git a/host/examples/tx_samples_from_file.cpp b/host/examples/tx_samples_from_file.cpp
index 0483eaa76..7824f4389 100644
--- a/host/examples/tx_samples_from_file.cpp
+++ b/host/examples/tx_samples_from_file.cpp
@@ -60,9 +60,9 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     uhd::set_thread_priority_safe();
 
     //variables to be set by po
-    std::string args, file, type;
+    std::string args, file, type, ant, subdev;
     size_t spb;
-    double rate, freq, gain;
+    double rate, freq, gain, bw;
 
     //setup the program options
     po::options_description desc("Allowed options");
@@ -70,11 +70,14 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
         ("help", "help message")
         ("args", po::value<std::string>(&args)->default_value(""), "multi uhd device address args")
         ("file", po::value<std::string>(&file)->default_value("usrp_samples.dat"), "name of the file to read binary samples from")
-        ("type", po::value<std::string>(&type)->default_value("float"), "choose the sample type: double, float, or short")
+        ("type", po::value<std::string>(&type)->default_value("float"), "sample type: double, float, or short")
         ("spb", po::value<size_t>(&spb)->default_value(10000), "samples per buffer")
-        ("rate", po::value<double>(&rate)->default_value(100e6/16), "rate of outgoing samples")
-        ("freq", po::value<double>(&freq)->default_value(0), "rf center frequency in Hz")
-        ("gain", po::value<double>(&gain)->default_value(0), "gain for the RF chain")
+        ("rate", po::value<double>(&rate), "rate of outgoing samples")
+        ("freq", po::value<double>(&freq), "rf center frequency in Hz")
+        ("gain", po::value<double>(&gain), "gain for the RF chain")
+        ("ant", po::value<std::string>(&ant), "select antenna")
+        ("subdev", po::value<std::string>(&subdev), "select subdevice")
+        ("bw", po::value<double>(&bw), "select IF filter bandwidth in Hz")
     ;
     po::variables_map vm;
     po::store(po::parse_command_line(argc, argv, desc), vm);
@@ -90,22 +93,46 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     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);
+
+    //always select the subdevice first, the channel mapping affects the other settings
+    if (vm.count("subdev")) usrp->set_tx_subdev_spec(subdev);
+
     std::cout << boost::format("Using Device: %s") % usrp->get_pp_string() << std::endl;
 
-    //set the rx sample rate
-    std::cout << boost::format("Setting RX Rate: %f Msps...") % (rate/1e6) << std::endl;
+    //set the sample rate
+    if (not vm.count("rate")){
+        std::cerr << "Please specify the sample rate with --rate" << std::endl;
+        return ~0;
+    }
+    std::cout << boost::format("Setting TX Rate: %f Msps...") % (rate/1e6) << std::endl;
     usrp->set_tx_rate(rate);
-    std::cout << boost::format("Actual RX Rate: %f Msps...") % (usrp->get_tx_rate()/1e6) << std::endl << std::endl;
+    std::cout << boost::format("Actual TX Rate: %f Msps...") % (usrp->get_tx_rate()/1e6) << std::endl << std::endl;
 
-    //set the rx center frequency
-    std::cout << boost::format("Setting RX Freq: %f Mhz...") % (freq/1e6) << std::endl;
+    //set the center frequency
+    if (not vm.count("freq")){
+        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 RX Freq: %f Mhz...") % (usrp->get_tx_freq()/1e6) << std::endl << std::endl;
+    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;
+    }
 
-    //set the rx rf gain
-    std::cout << boost::format("Setting RX Gain: %f dB...") % gain << std::endl;
-    usrp->set_tx_gain(gain);
-    std::cout << boost::format("Actual RX Gain: %f dB...") % usrp->get_tx_gain() << std::endl << std::endl;
+    //set the antenna
+    if (vm.count("ant")) usrp->set_tx_antenna(ant);
 
     boost::this_thread::sleep(boost::posix_time::seconds(1)); //allow for some setup time