GNU Radio 3.6.5.1 C++ API
uhd_usrp_source Class Reference

#include <gr_uhd_usrp_source.h>

Inheritance diagram for uhd_usrp_source:
gr_sync_block gr_block gr_basic_block gr_msg_accepter gruel::msg_accepter

Public Member Functions

virtual void set_start_time (const uhd::time_spec_t &time)=0
virtual void issue_stream_cmd (const uhd::stream_cmd_t &cmd)=0
virtual uhd::dict< std::string,
std::string > 
get_usrp_info (size_t chan=0)=0
virtual void set_subdev_spec (const std::string &spec, size_t mboard=0)=0
virtual std::string get_subdev_spec (size_t mboard=0)=0
virtual void set_samp_rate (double rate)=0
virtual double get_samp_rate (void)=0
virtual uhd::meta_range_t get_samp_rates (void)=0
virtual uhd::tune_result_t set_center_freq (const uhd::tune_request_t tune_request, size_t chan=0)=0
uhd::tune_result_t set_center_freq (double freq, size_t chan=0)
virtual double get_center_freq (size_t chan=0)=0
virtual uhd::freq_range_t get_freq_range (size_t chan=0)=0
virtual void set_gain (double gain, size_t chan=0)=0
virtual void set_gain (double gain, const std::string &name, size_t chan=0)=0
virtual double get_gain (size_t chan=0)=0
virtual double get_gain (const std::string &name, size_t chan=0)=0
virtual std::vector< std::string > get_gain_names (size_t chan=0)=0
virtual uhd::gain_range_t get_gain_range (size_t chan=0)=0
virtual uhd::gain_range_t get_gain_range (const std::string &name, size_t chan=0)=0
virtual void set_antenna (const std::string &ant, size_t chan=0)=0
virtual std::string get_antenna (size_t chan=0)=0
virtual std::vector< std::string > get_antennas (size_t chan=0)=0
virtual void set_bandwidth (double bandwidth, size_t chan=0)=0
virtual double get_bandwidth (size_t chan=0)=0
virtual uhd::freq_range_t get_bandwidth_range (size_t chan=0)=0
virtual void set_auto_dc_offset (const bool enb, size_t chan=0)=0
virtual void set_dc_offset (const std::complex< double > &offset, size_t chan=0)=0
virtual void set_iq_balance (const std::complex< double > &correction, size_t chan=0)=0
virtual uhd::sensor_value_t get_sensor (const std::string &name, size_t chan=0)=0
virtual std::vector< std::string > get_sensor_names (size_t chan=0)=0
uhd::sensor_value_t get_dboard_sensor (const std::string &name, size_t chan=0)
 DEPRECATED use get_sensor.
std::vector< std::string > get_dboard_sensor_names (size_t chan=0)
 DEPRECATED use get_sensor_names.
virtual uhd::sensor_value_t get_mboard_sensor (const std::string &name, size_t mboard=0)=0
virtual std::vector< std::string > get_mboard_sensor_names (size_t mboard=0)=0
virtual void set_clock_config (const uhd::clock_config_t &clock_config, size_t mboard=0)=0
virtual void set_time_source (const std::string &source, const size_t mboard=0)=0
virtual std::string get_time_source (const size_t mboard)=0
virtual std::vector< std::string > get_time_sources (const size_t mboard)=0
virtual void set_clock_source (const std::string &source, const size_t mboard=0)=0
virtual std::string get_clock_source (const size_t mboard)=0
virtual std::vector< std::string > get_clock_sources (const size_t mboard)=0
virtual double get_clock_rate (size_t mboard=0)=0
virtual void set_clock_rate (double rate, size_t mboard=0)=0
virtual uhd::time_spec_t get_time_now (size_t mboard=0)=0
virtual uhd::time_spec_t get_time_last_pps (size_t mboard=0)=0
virtual void set_time_now (const uhd::time_spec_t &time_spec, size_t mboard=0)=0
virtual void set_time_next_pps (const uhd::time_spec_t &time_spec)=0
virtual void set_time_unknown_pps (const uhd::time_spec_t &time_spec)=0
virtual void set_command_time (const uhd::time_spec_t &time_spec, size_t mboard=0)=0
virtual void clear_command_time (size_t mboard=0)=0
virtual
uhd::usrp::dboard_iface::sptr 
get_dboard_iface (size_t chan=0)=0
virtual uhd::usrp::multi_usrp::sptr get_device (void)=0
virtual void set_user_register (const uint8_t addr, const uint32_t data, size_t mboard=0)=0
virtual std::vector
< std::complex< float > > 
finite_acquisition (const size_t nsamps)=0
virtual std::vector
< std::vector< std::complex
< float > > > 
finite_acquisition_v (const size_t nsamps)=0
- Public Member Functions inherited from gr_sync_block
virtual int work (int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)=0
 just like gr_block::general_work, only this arranges to call consume_each for you
void forecast (int noutput_items, gr_vector_int &ninput_items_required)
 Estimate input requirements given output request.
int general_work (int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
 compute output items from input items
int fixed_rate_ninput_to_noutput (int ninput)
 Given ninput samples, return number of output samples that will be produced. N.B. this is only defined if fixed_rate returns true. Generally speaking, you don't need to override this.
int fixed_rate_noutput_to_ninput (int noutput)
 Given noutput samples, return number of input samples required to produce noutput. N.B. this is only defined if fixed_rate returns true. Generally speaking, you don't need to override this.
- Public Member Functions inherited from gr_block
virtual ~gr_block ()
unsigned history () const
void set_history (unsigned history)
bool fixed_rate () const
 Return true if this block has a fixed input to output rate.
virtual bool start ()
 Called to enable drivers, etc for i/o devices.
virtual bool stop ()
 Called to disable drivers, etc for i/o devices.
void set_output_multiple (int multiple)
 Constrain the noutput_items argument passed to forecast and general_work.
int output_multiple () const
bool output_multiple_set () const
void set_alignment (int multiple)
 Constrains buffers to work on a set item alignment (for SIMD)
int alignment () const
void set_unaligned (int na)
int unaligned () const
void set_is_unaligned (bool u)
bool is_unaligned () const
void consume (int which_input, int how_many_items)
 Tell the scheduler how_many_items of input stream which_input were consumed.
void consume_each (int how_many_items)
 Tell the scheduler how_many_items were consumed on each input stream.
void produce (int which_output, int how_many_items)
 Tell the scheduler how_many_items were produced on output stream which_output.
void set_relative_rate (double relative_rate)
 Set the approximate output rate / input rate.
double relative_rate () const
 return the approximate output rate / input rate
uint64_t nitems_read (unsigned int which_input)
 Return the number of items read on input stream which_input.
uint64_t nitems_written (unsigned int which_output)
 Return the number of items written on output stream which_output.
tag_propagation_policy_t tag_propagation_policy ()
 Asks for the policy used by the scheduler to moved tags downstream.
void set_tag_propagation_policy (tag_propagation_policy_t p)
 Set the policy by the scheduler to determine how tags are moved downstream.
int min_noutput_items () const
 Return the minimum number of output items this block can produce during a call to work.
void set_min_noutput_items (int m)
 Set the minimum number of output items this block can produce during a call to work.
int max_noutput_items ()
 Return the maximum number of output items this block will handle during a call to work.
void set_max_noutput_items (int m)
 Set the maximum number of output items this block will handle during a call to work.
void unset_max_noutput_items ()
 Clear the switch for using the max_noutput_items value of this block.
bool is_set_max_noutput_items ()
 Ask the block if the flag is or is not set to use the internal value of max_noutput_items during a call to work.
void expand_minmax_buffer (int port)
long max_output_buffer (size_t i)
 Returns max buffer size on output port i.
void set_max_output_buffer (long max_output_buffer)
 Sets max buffer size on all output ports.
void set_max_output_buffer (int port, long max_output_buffer)
 Sets max buffer size on output port port.
long min_output_buffer (size_t i)
 Returns min buffer size on output port i.
void set_min_output_buffer (long min_output_buffer)
 Sets min buffer size on all output ports.
void set_min_output_buffer (int port, long min_output_buffer)
 Sets min buffer size on output port port.
float pc_noutput_items ()
 Gets average noutput_items performance counter.
float pc_noutput_items_var ()
 Gets variance of noutput_items performance counter.
float pc_nproduced ()
 Gets average num items produced performance counter.
float pc_nproduced_var ()
 Gets variance of num items produced performance counter.
float pc_input_buffers_full (int which)
 Gets average fullness of which input buffer.
float pc_input_buffers_full_var (int which)
 Gets variance of fullness of which input buffer.
std::vector< float > pc_input_buffers_full ()
 Gets average fullness of all input buffers.
std::vector< float > pc_input_buffers_full_var ()
 Gets variance of fullness of all input buffers.
float pc_output_buffers_full (int which)
 Gets average fullness of which input buffer.
float pc_output_buffers_full_var (int which)
 Gets variance of fullness of which input buffer.
std::vector< float > pc_output_buffers_full ()
 Gets average fullness of all output buffers.
std::vector< float > pc_output_buffers_full_var ()
 Gets variance of fullness of all output buffers.
float pc_work_time ()
 Gets average clock cycles spent in work.
float pc_work_time_var ()
 Gets average clock cycles spent in work.
void reset_perf_counters ()
 Resets the performance counters.
void set_processor_affinity (const std::vector< int > &mask)
 Set the thread's affinity to processor core n.
void unset_processor_affinity ()
 Remove processor affinity to a specific core.
std::vector< int > processor_affinity ()
 Get the current processor affinity.
gr_block_detail_sptr detail () const
void set_detail (gr_block_detail_sptr detail)
- Public Member Functions inherited from gr_basic_block
virtual ~gr_basic_block ()
long unique_id () const
long symbolic_id () const
std::string name () const
std::string symbol_name () const
gr_io_signature_sptr input_signature () const
gr_io_signature_sptr output_signature () const
gr_basic_block_sptr to_basic_block ()
bool alias_set ()
std::string alias ()
pmt::pmt_t alias_pmt ()
void set_block_alias (std::string name)
void message_port_register_in (pmt::pmt_t port_id)
void message_port_register_out (pmt::pmt_t port_id)
void message_port_pub (pmt::pmt_t port_id, pmt::pmt_t msg)
void message_port_sub (pmt::pmt_t port_id, pmt::pmt_t target)
void message_port_unsub (pmt::pmt_t port_id, pmt::pmt_t target)
virtual bool message_port_is_hier (pmt::pmt_t port_id)
virtual bool message_port_is_hier_in (pmt::pmt_t port_id)
virtual bool message_port_is_hier_out (pmt::pmt_t port_id)
pmt::pmt_t message_ports_in ()
 Get input message port names.
pmt::pmt_t message_ports_out ()
 Get output message port names.
void _post (pmt::pmt_t which_port, pmt::pmt_t msg)
bool empty_p (pmt::pmt_t which_port)
 is the queue empty?
bool empty_p ()
size_t nmsgs (pmt::pmt_t which_port)
 How many messages in the queue?
void insert_tail (pmt::pmt_t which_port, pmt::pmt_t msg)
pmt::pmt_t delete_head_nowait (pmt::pmt_t which_port)
pmt::pmt_t delete_head_blocking (pmt::pmt_t which_port)
msg_queue_t::iterator get_iterator (pmt::pmt_t which_port)
void erase_msg (pmt::pmt_t which_port, msg_queue_t::iterator it)
virtual bool has_msg_port (pmt::pmt_t which_port)
virtual bool check_topology (int ninputs, int noutputs)
 Confirm that ninputs and noutputs is an acceptable combination.
template<typename T >
void set_msg_handler (pmt::pmt_t which_port, T msg_handler)
 Set the callback that is fired when messages are available.
- Public Member Functions inherited from gr_msg_accepter
 gr_msg_accepter ()
 ~gr_msg_accepter ()
void post (pmt::pmt_t which_port, pmt::pmt_t msg)
 send msg to msg_accepter on port which_port
- Public Member Functions inherited from gruel::msg_accepter
 msg_accepter ()
virtual ~msg_accepter ()

Additional Inherited Members

- Public Types inherited from gr_block
enum  { WORK_CALLED_PRODUCE = -2, WORK_DONE = -1 }
 Magic return values from general_work. More...
enum  tag_propagation_policy_t { TPP_DONT = 0, TPP_ALL_TO_ALL = 1, TPP_ONE_TO_ONE = 2 }
- Protected Types inherited from gr_basic_block
enum  vcolor { WHITE, GREY, BLACK }
- Protected Member Functions inherited from gr_sync_block
 gr_sync_block (void)
 gr_sync_block (const std::string &name, gr_io_signature_sptr input_signature, gr_io_signature_sptr output_signature)
- Protected Attributes inherited from gr_block
std::vector< long > d_max_output_buffer
std::vector< long > d_min_output_buffer
gruel::mutex d_setlock
gr_logger_ptr d_logger
gr_logger_ptr d_debug_logger

Member Function Documentation

virtual void uhd_usrp_source::clear_command_time ( size_t  mboard = 0)
pure virtual

Clear the command time so future commands are sent ASAP.

Parameters
mboardwhich motherboard to set the config
virtual std::vector<std::complex<float> > uhd_usrp_source::finite_acquisition ( const size_t  nsamps)
pure virtual

Convenience function for finite data acquisition. This is not to be used with the scheduler; rather, one can request samples from the USRP in python. //TODO assumes fc32

Parameters
nsampsthe number of samples
Returns
a vector of complex float samples
virtual std::vector<std::vector<std::complex<float> > > uhd_usrp_source::finite_acquisition_v ( const size_t  nsamps)
pure virtual

Convenience function for finite data acquisition. This is the multi-channel version of finite_acquisition; This is not to be used with the scheduler; rather, one can request samples from the USRP in python. //TODO assumes fc32

Parameters
nsampsthe number of samples per channel
Returns
a vector of buffers, where each buffer represents a channel
virtual std::string uhd_usrp_source::get_antenna ( size_t  chan = 0)
pure virtual

Get the antenna in use.

Parameters
chanthe channel index 0 to N-1
Returns
the antenna string
virtual std::vector<std::string> uhd_usrp_source::get_antennas ( size_t  chan = 0)
pure virtual

Get a list of possible antennas.

Parameters
chanthe channel index 0 to N-1
Returns
a vector of antenna strings
virtual double uhd_usrp_source::get_bandwidth ( size_t  chan = 0)
pure virtual

Get the bandpass filter setting on the RF frontend.

Parameters
chanthe channel index 0 to N-1
Returns
bandwidth of the filter in Hz
virtual uhd::freq_range_t uhd_usrp_source::get_bandwidth_range ( size_t  chan = 0)
pure virtual

Get the bandpass filter range of the RF frontend.

Parameters
chanthe channel index 0 to N-1
Returns
the range of the filter bandwidth in Hz
virtual double uhd_usrp_source::get_center_freq ( size_t  chan = 0)
pure virtual

Get the center frequency.

Parameters
chanthe channel index 0 to N-1
Returns
the frequency in Hz
virtual double uhd_usrp_source::get_clock_rate ( size_t  mboard = 0)
pure virtual

Get the master clock rate.

Parameters
mboardthe motherboard index 0 to M-1
Returns
the clock rate in Hz
virtual std::string uhd_usrp_source::get_clock_source ( const size_t  mboard)
pure virtual

Get the currently set clock source.

Parameters
mboardwhich motherboard to get the config
Returns
the string representing the clock source
virtual std::vector<std::string> uhd_usrp_source::get_clock_sources ( const size_t  mboard)
pure virtual

Get a list of possible clock sources.

Parameters
mboardwhich motherboard to get the list
Returns
a vector of strings for possible settings
virtual uhd::usrp::dboard_iface::sptr uhd_usrp_source::get_dboard_iface ( size_t  chan = 0)
pure virtual

Get access to the underlying uhd dboard iface object.

Returns
the dboard_iface object
uhd::sensor_value_t uhd_usrp_source::get_dboard_sensor ( const std::string &  name,
size_t  chan = 0 
)
inline

DEPRECATED use get_sensor.

std::vector<std::string> uhd_usrp_source::get_dboard_sensor_names ( size_t  chan = 0)
inline

DEPRECATED use get_sensor_names.

virtual uhd::usrp::multi_usrp::sptr uhd_usrp_source::get_device ( void  )
pure virtual

Get access to the underlying uhd device object.

Returns
the multi usrp device object
virtual uhd::freq_range_t uhd_usrp_source::get_freq_range ( size_t  chan = 0)
pure virtual

Get the tunable frequency range.

Parameters
chanthe channel index 0 to N-1
Returns
the frequency range in Hz
virtual double uhd_usrp_source::get_gain ( size_t  chan = 0)
pure virtual

Get the actual dboard gain setting.

Parameters
chanthe channel index 0 to N-1
Returns
the actual gain in dB
virtual double uhd_usrp_source::get_gain ( const std::string &  name,
size_t  chan = 0 
)
pure virtual

Get the actual dboard gain setting of named stage.

Parameters
namethe name of the gain stage
chanthe channel index 0 to N-1
Returns
the actual gain in dB
virtual std::vector<std::string> uhd_usrp_source::get_gain_names ( size_t  chan = 0)
pure virtual

Get the actual dboard gain setting of named stage.

Parameters
chanthe channel index 0 to N-1
Returns
the actual gain in dB
virtual uhd::gain_range_t uhd_usrp_source::get_gain_range ( size_t  chan = 0)
pure virtual

Get the settable gain range.

Parameters
chanthe channel index 0 to N-1
Returns
the gain range in dB
virtual uhd::gain_range_t uhd_usrp_source::get_gain_range ( const std::string &  name,
size_t  chan = 0 
)
pure virtual

Get the settable gain range.

Parameters
namethe name of the gain stage
chanthe channel index 0 to N-1
Returns
the gain range in dB
virtual uhd::sensor_value_t uhd_usrp_source::get_mboard_sensor ( const std::string &  name,
size_t  mboard = 0 
)
pure virtual

Get a motherboard sensor value.

Parameters
namethe name of the sensor
mboardthe motherboard index 0 to M-1
Returns
a sensor value object
virtual std::vector<std::string> uhd_usrp_source::get_mboard_sensor_names ( size_t  mboard = 0)
pure virtual

Get a list of possible motherboard sensor names.

Parameters
mboardthe motherboard index 0 to M-1
Returns
a vector of sensor names
virtual double uhd_usrp_source::get_samp_rate ( void  )
pure virtual

Get the sample rate for the usrp device. This is the actual sample rate and may differ from the rate set.

Returns
the actual rate in Sps
virtual uhd::meta_range_t uhd_usrp_source::get_samp_rates ( void  )
pure virtual

Get the possible sample rates for the usrp device.

Returns
a range of rates in Sps
virtual uhd::sensor_value_t uhd_usrp_source::get_sensor ( const std::string &  name,
size_t  chan = 0 
)
pure virtual

Get a RF frontend sensor value.

Parameters
namethe name of the sensor
chanthe channel index 0 to N-1
Returns
a sensor value object
virtual std::vector<std::string> uhd_usrp_source::get_sensor_names ( size_t  chan = 0)
pure virtual

Get a list of possible RF frontend sensor names.

Parameters
chanthe channel index 0 to N-1
Returns
a vector of sensor names
virtual std::string uhd_usrp_source::get_subdev_spec ( size_t  mboard = 0)
pure virtual

Get the RX frontend specification.

Parameters
mboardthe motherboard index 0 to M-1
Returns
the frontend specification in use
virtual uhd::time_spec_t uhd_usrp_source::get_time_last_pps ( size_t  mboard = 0)
pure virtual

Get the time when the last pps pulse occured.

Parameters
mboardthe motherboard index 0 to M-1
Returns
the current usrp time
virtual uhd::time_spec_t uhd_usrp_source::get_time_now ( size_t  mboard = 0)
pure virtual

Get the current time registers.

Parameters
mboardthe motherboard index 0 to M-1
Returns
the current usrp time
virtual std::string uhd_usrp_source::get_time_source ( const size_t  mboard)
pure virtual

Get the currently set time source.

Parameters
mboardwhich motherboard to get the config
Returns
the string representing the time source
virtual std::vector<std::string> uhd_usrp_source::get_time_sources ( const size_t  mboard)
pure virtual

Get a list of possible time sources.

Parameters
mboardwhich motherboard to get the list
Returns
a vector of strings for possible settings
virtual uhd::dict<std::string, std::string> uhd_usrp_source::get_usrp_info ( size_t  chan = 0)
pure virtual

Returns identifying information about this USRP's configuration. Returns motherboard ID, name, and serial. Returns daughterboard RX ID, subdev name and spec, serial, and antenna.

Parameters
chanchannel index 0 to N-1
Returns
RX info
virtual void uhd_usrp_source::issue_stream_cmd ( const uhd::stream_cmd_t &  cmd)
pure virtual

Advanced use only: Issue a stream command to all channels in this source block.

This method is intended to override the default "always on" behavior. After starting the flow graph, the user should call stop() on this block, then issue any desired arbitrary stream_cmd_t structs to the device. The USRP will be able to enqueue several stream commands in the FPGA.

Parameters
cmdthe stream command to issue to all source channels
virtual void uhd_usrp_source::set_antenna ( const std::string &  ant,
size_t  chan = 0 
)
pure virtual

Set the antenna to use.

Parameters
antthe antenna string
chanthe channel index 0 to N-1
virtual void uhd_usrp_source::set_auto_dc_offset ( const bool  enb,
size_t  chan = 0 
)
pure virtual

Enable/disable the automatic DC offset correction. The automatic correction subtracts out the long-run average.

When disabled, the averaging option operation is halted. Once halted, the average value will be held constant until the user re-enables the automatic correction or overrides the value by manually setting the offset.

Parameters
enbtrue to enable automatic DC offset correction
chanthe channel index 0 to N-1
virtual void uhd_usrp_source::set_bandwidth ( double  bandwidth,
size_t  chan = 0 
)
pure virtual

Set the bandpass filter on the RF frontend.

Parameters
bandwidththe filter bandwidth in Hz
chanthe channel index 0 to N-1
virtual uhd::tune_result_t uhd_usrp_source::set_center_freq ( const uhd::tune_request_t  tune_request,
size_t  chan = 0 
)
pure virtual

Tune the usrp device to the desired center frequency.

Parameters
tune_requestthe tune request instructions
chanthe channel index 0 to N-1
Returns
a tune result with the actual frequencies
uhd::tune_result_t uhd_usrp_source::set_center_freq ( double  freq,
size_t  chan = 0 
)
inline

Tune the usrp device to the desired center frequency. This is a wrapper around set center freq so that in this case, the user can pass a single frequency in the call through swig.

Parameters
freqthe desired frequency in Hz
chanthe channel index 0 to N-1
Returns
a tune result with the actual frequencies
virtual void uhd_usrp_source::set_clock_config ( const uhd::clock_config_t &  clock_config,
size_t  mboard = 0 
)
pure virtual

Set the clock configuration. DEPRECATED for set_time/clock_source.

Parameters
clock_configthe new configuration
mboardthe motherboard index 0 to M-1
virtual void uhd_usrp_source::set_clock_rate ( double  rate,
size_t  mboard = 0 
)
pure virtual

Set the master clock rate.

Parameters
ratethe new rate in Hz
mboardthe motherboard index 0 to M-1
virtual void uhd_usrp_source::set_clock_source ( const std::string &  source,
const size_t  mboard = 0 
)
pure virtual

Set the clock source for the usrp device. This sets the source for a 10 Mhz reference clock. Typical options for source: internal, external, MIMO.

Parameters
sourcea string representing the clock source
mboardwhich motherboard to set the config
virtual void uhd_usrp_source::set_command_time ( const uhd::time_spec_t &  time_spec,
size_t  mboard = 0 
)
pure virtual

Set the time at which the control commands will take effect.

A timed command will back-pressure all subsequent timed commands, assuming that the subsequent commands occur within the time-window. If the time spec is late, the command will be activated upon arrival.

Parameters
time_specthe time at which the next command will activate
mboardwhich motherboard to set the config
virtual void uhd_usrp_source::set_dc_offset ( const std::complex< double > &  offset,
size_t  chan = 0 
)
pure virtual

Set a constant DC offset value. The value is complex to control both I and Q. Only set this when automatic correction is disabled.

Parameters
offsetthe dc offset (1.0 is full-scale)
chanthe channel index 0 to N-1
virtual void uhd_usrp_source::set_gain ( double  gain,
size_t  chan = 0 
)
pure virtual

Set the gain for the dboard.

Parameters
gainthe gain in dB
chanthe channel index 0 to N-1
virtual void uhd_usrp_source::set_gain ( double  gain,
const std::string &  name,
size_t  chan = 0 
)
pure virtual

Set the named gain on the dboard.

Parameters
gainthe gain in dB
namethe name of the gain stage
chanthe channel index 0 to N-1
virtual void uhd_usrp_source::set_iq_balance ( const std::complex< double > &  correction,
size_t  chan = 0 
)
pure virtual

Set the RX frontend IQ imbalance correction. Use this to adjust the magnitude and phase of I and Q.

Parameters
correctionthe complex correction value
chanthe channel index 0 to N-1
virtual void uhd_usrp_source::set_samp_rate ( double  rate)
pure virtual

Set the sample rate for the usrp device.

Parameters
ratea new rate in Sps
virtual void uhd_usrp_source::set_start_time ( const uhd::time_spec_t &  time)
pure virtual

Set the start time for incoming samples. To control when samples are received, set this value before starting the flow graph. The value is cleared after each run. When not specified, the start time will be:

  • Immediately for the one channel case
  • in the near future for multi-channel
Parameters
timethe absolute time for reception to begin
virtual void uhd_usrp_source::set_subdev_spec ( const std::string &  spec,
size_t  mboard = 0 
)
pure virtual

Set the frontend specification.

Parameters
specthe subdev spec markup string
mboardthe motherboard index 0 to M-1
virtual void uhd_usrp_source::set_time_next_pps ( const uhd::time_spec_t &  time_spec)
pure virtual

Set the time registers at the next pps.

Parameters
time_specthe new time
virtual void uhd_usrp_source::set_time_now ( const uhd::time_spec_t &  time_spec,
size_t  mboard = 0 
)
pure virtual

Sets the time registers immediately.

Parameters
time_specthe new time
mboardthe motherboard index 0 to M-1
virtual void uhd_usrp_source::set_time_source ( const std::string &  source,
const size_t  mboard = 0 
)
pure virtual

Set the time source for the usrp device. This sets the method of time synchronization, typically a pulse per second or an encoded time. Typical options for source: external, MIMO.

Parameters
sourcea string representing the time source
mboardwhich motherboard to set the config
virtual void uhd_usrp_source::set_time_unknown_pps ( const uhd::time_spec_t &  time_spec)
pure virtual

Sync the time registers with an unknown pps edge.

Parameters
time_specthe new time
virtual void uhd_usrp_source::set_user_register ( const uint8_t  addr,
const uint32_t  data,
size_t  mboard = 0 
)
pure virtual

Perform write on the user configuration register bus. These only exist if the user has implemented custom setting registers in the device FPGA.

Parameters
addr8-bit register address
data32-bit register value
mboardwhich motherboard to set the user register

The documentation for this class was generated from the following file: