C++ sptr::get_rx_gain方法代码示例

double uhd_device::setRxGain(double db)
{
	usrp_dev->set_rx_gain(db);
	rx_gain = usrp_dev->get_rx_gain();

	LOG(INFO) << "Set RX gain to " << rx_gain << "dB";

	return rx_gain;
}

void uhd_device::init_gains()
{
	uhd::gain_range_t range;

	range = usrp_dev->get_tx_gain_range();
	tx_gain_min = range.start();
	tx_gain_max = range.stop();

	range = usrp_dev->get_rx_gain_range();
	rx_gain_min = range.start();
	rx_gain_max = range.stop();

	usrp_dev->set_tx_gain((tx_gain_min + tx_gain_max) / 2);
	usrp_dev->set_rx_gain((rx_gain_min + rx_gain_max) / 2);

	tx_gain = usrp_dev->get_tx_gain();
	rx_gain = usrp_dev->get_rx_gain();

	return;
}

int setupUSRP(  uhd::usrp::multi_usrp::sptr&  usrp,
                const float                   center_freq,
                const float                   sample_rate,
                const int                     rx_gain,
                const char*                   dev_addr)
{
  //Initialize the USRP to the specified address
  usrp = uhd::usrp::multi_usrp::make(string(dev_addr));
  //Define the clock reference
  usrp->set_clock_source(__USRP_CLK_SRC);

  //Output some useful information
  cout  << "Using the following USRP device: " << endl
        << usrp->get_pp_string() << endl;

  //Try setting the sample rate.  If the rate we get is not the same as the
  //requested rate, we will return with a warning to ensure the user is aware
  //of the actual sample rate
  usrp->set_rx_rate( sample_rate );

  if( usrp->get_rx_rate() != sample_rate )
  {
    ios_base::fmtflags originalFlags = cout.flags();
    cout.setf(ios_base::left,ios_base::floatfield);
    cout.precision(15);
    cout  << "WARNING! Requested rate = " << sample_rate << endl
          << "WARNING! Actual rate = " << usrp->get_rx_rate() << endl;
    cout.setf(originalFlags);
  }

  //Try setting the center frequency.  Like above, if we get a different
  //frequency than the one we're requesting, we will spit out a warning for the
  //user
  usrp->set_rx_freq( center_freq );

  if( usrp->get_rx_freq() != center_freq )
  {
    ios_base::fmtflags originalFlags = cout.flags();
    cout.setf(ios_base::left,ios_base::floatfield);
    cout.precision(15);
    cout  << "WARNING! Requested frequency = " << center_freq << endl
          << "WARNING! Actual frequency = " << usrp->get_rx_freq() << endl;
    cout.setf(originalFlags);
  }

  //Set the RX gain.  There really shouldn't be any problems here, but the user
  //might request something silly like 50dB of gain when the module can't
  //accomodate.  So we'll perform a similar check here.
  usrp->set_rx_gain( rx_gain );

  if( usrp->get_rx_gain() != rx_gain )
  {
    cout  << "WARNING! Requested gain = " << rx_gain << endl
          << "WARNING! Actual gain = " << usrp->get_rx_gain() << endl;
  }

  //Ensure the LO locked
  vector<string> sensor_names;
  sensor_names = usrp->get_rx_sensor_names(0);
  if( find(sensor_names.begin(), sensor_names.end(), "lo_locked")
      != sensor_names.end() )
  {
    uhd::sensor_value_t lo_locked = usrp->get_rx_sensor("lo_locked",0);
    cout  << "Checking RX: " << endl
          << lo_locked.to_pp_string() << endl;
    UHD_ASSERT_THROW(lo_locked.to_bool());      //We should probably catch this
  }

  return 1;
}

void get_rx_parameters(uhd::usrp::multi_usrp::sptr usrp, size_t mboard , std::ostream & os)
{
	using namespace std;
	namespace radio = uhd::usrp;
	size_t nchan = 0;

	// Get sub device specification
	os << std::endl << "********** RX Sub Device ***********" << std::endl;
	os << std::endl << "-----> Get Rx Subdevice" << std::endl;
	radio::subdev_spec_t rx_subdev = usrp->get_rx_subdev_spec(mboard);
	os << "RX Subdevice Specification:" << endl;
	os << rx_subdev.to_pp_string() << endl;
	
	os << std::endl << "-----> Get number of RX channels" << std::endl;
	size_t num_rx = usrp->get_rx_num_channels();
	os << "Number of RX channels:" << endl;
	os << num_rx << endl;
	
	os << std::endl << "-----> Get RX Subdevice Name" << std::endl;
	string rx_name = usrp->get_rx_subdev_name(nchan);
	os << "RX Subdevice Name:" << endl;
	os << rx_name << endl;

	os << std::endl << "********** RX Sample Rate ***********" << std::endl;
	os << std::endl << "-----> Get RX Rate" << std::endl;
	double rx_rate = usrp->get_rx_rate(nchan);
	os << "RX Rate:" << endl;
	os << rx_rate << endl;
	
	os << std::endl << "-----> Get RX Rate List" << std::endl;
	uhd::meta_range_t rx_rates = usrp->get_rx_rates(nchan);
	os << "RX Rate List:" << endl;
	os << "Start: " << rx_rates.start() << "   Stop: " << rx_rates.stop() << "   Step: " << rx_rates.step() << endl;
	os << rx_rates.to_pp_string() << endl;
	
	// RX FREQUENCIES
	
	os << std::endl << "********** RX Frequencies ***********" << std::endl;
	os << std::endl << "-----> Get RX Center Frequency" << std::endl;
	double rx_freq = usrp->get_rx_freq(nchan);
	os << "RX Freq:" << endl;
	os << rx_freq << endl;

	os << std::endl << "-----> Get RX Center Frequency Range" << std::endl;
	uhd::freq_range_t rx_freq_range = usrp->get_rx_freq_range(nchan);
	os << "RX Frequency Range:" << endl;
	os << "Start: " << rx_freq_range.start() << "   Stop: " << rx_freq_range.stop() << "   Step: " << rx_freq_range.step() << endl;
	os << rx_freq_range.to_pp_string() << endl;
	
	// RX Front end frequencies
	os << std::endl << "-----> Get RX RF Front End Center Frequency Range" << std::endl;
	try
	{
		os << "RX Front End Frequency Range:" << endl;
		uhd::freq_range_t rx_fe_freq_range = usrp->get_fe_rx_freq_range(nchan);
		os << "Start: " << rx_fe_freq_range.start() << "   Stop: " << rx_fe_freq_range.stop() << "   Step: " << rx_fe_freq_range.step() << endl;
		os << rx_fe_freq_range.to_pp_string() << endl;
	}
		catch (uhd::runtime_error &e)
	{
		os << " Exception occurred : " << e.code() << endl;
	}
	
	// RX GAIN
	
	os << std::endl << "********** RX Gain  ***********" << std::endl;
	
	// Total combined gain
	os << endl << "-----> Get RX Total Gain" << endl;
	os << "RX Total Gain: " ;	
	try
	{
		double rx_total_gain = usrp->get_rx_gain(nchan);
		os << rx_total_gain << endl;
	}
	catch(uhd::runtime_error &e)
	{
		os << "Exception code: " << e.code() << endl;
	}
	
	// List of all gain elements
	os << std::endl << "-----> Get RX gain names" << std::endl;
	std::vector<std::string> rx_gain_names = usrp->get_rx_gain_names(nchan);
	os << "Rx Gain Names: " << std::endl;
	for (int index =0; index < rx_gain_names.size(); index++)
	{
		// Name
		os << "\t" << rx_gain_names[index] << endl;
	}
	for (int index =0; index < rx_gain_names.size(); index++)
	{
		// Name
		os << "\t" << "Name: " << rx_gain_names[index] << "  Value: ";
		// Value
		try
		{
		double element_gain = usrp->get_rx_gain(rx_gain_names[index], nchan);
		os << element_gain << endl;
		}
		catch(uhd::runtime_error &e)
//.........这里部分代码省略.........