abstract interface to Universal Software Radio Peripheral Tx path (Rev 1)
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#include <usrp_sink_base.h>
List of all members.
Public Member Functions |
| | ~usrp_sink_base () |
| int | work (int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items) |
| | just like gr_block::general_work, only this arranges to call consume_each for you
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| bool | set_interp_rate (unsigned int rate) |
| | Set interpolator rate. rate must be in [4, 1024] and a multiple of 4.
|
| bool | set_nchannels (int nchan) |
| bool | set_mux (int mux) |
| int | determine_tx_mux_value (usrp_subdev_spec ss) |
| int | determine_tx_mux_value (usrp_subdev_spec ss_a, usrp_subdev_spec ss_b) |
| bool | set_tx_freq (int channel, double freq) |
| | set the frequency of the digital up converter.
|
| long | dac_rate () const |
| long | dac_freq () const |
| unsigned int | interp_rate () const |
| int | nchannels () const |
| int | mux () const |
| double | tx_freq (int channel) const |
| int | nunderruns () const |
| bool | has_rx_halfband () |
| bool | has_tx_halfband () |
| int | nddcs () |
| int | nducs () |
| bool | start () |
| | Called to enable drivers, etc for i/o devices.
|
| bool | stop () |
| | Called to disable drivers, etc for i/o devices.
|
| bool | tune (int chan, db_base_sptr db, double target_freq, usrp_tune_result *result) |
| | High-level "tune" method. Works for the single channel case.
|
| usrp_subdev_spec | pick_tx_subdevice () |
| | Select suitable Tx daughterboard.
|
Protected Member Functions |
| | usrp_sink_base (const std::string &name, gr_io_signature_sptr input_signature, int which_board, unsigned int interp_rate, int nchan, int mux, int fusb_block_size, int fusb_nblocks, const std::string fpga_filename, const std::string firmware_filename) throw (std::runtime_error) |
| virtual void | copy_to_usrp_buffer (gr_vector_const_void_star &input_items, int input_index, int input_items_available, int &input_items_consumed, void *usrp_buffer, int usrp_buffer_length, int &bytes_written)=0 |
| | convert between input item format and usrp native format
|
Detailed Description
abstract interface to Universal Software Radio Peripheral Tx path (Rev 1)
Constructor & Destructor Documentation
| usrp_sink_base::usrp_sink_base |
( |
const std::string & |
name, |
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gr_io_signature_sptr |
input_signature, |
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int |
which_board, |
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unsigned int |
interp_rate, |
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int |
nchan, |
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int |
mux, |
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int |
fusb_block_size, |
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int |
fusb_nblocks, |
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const std::string |
fpga_filename, |
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const std::string |
firmware_filename |
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) |
| throw (std::runtime_error) [protected] |
| usrp_sink_base::~usrp_sink_base |
( |
| ) |
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Member Function Documentation
| virtual void usrp_sink_base::copy_to_usrp_buffer |
( |
gr_vector_const_void_star & |
input_items, |
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int |
input_index, |
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int |
input_items_available, |
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int & |
input_items_consumed, |
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void * |
usrp_buffer, |
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int |
usrp_buffer_length, |
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int & |
bytes_written |
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) |
| [protected, pure virtual] |
convert between input item format and usrp native format
- Parameters:
-
| [in] | input_items | stream(s) of input items |
| [in] | input_index | starting index in input_items |
| [in] | input_items_available | number of items available starting at item[index] |
| [out] | input_items_consumed | number of input items consumed by copy |
| [out] | usrp_buffer | destination buffer |
| [in] | usrp_buffer_length | usrp_buffer length in bytes |
| [out] | bytes_written | number of bytes written into usrp_buffer |
Implemented in usrp_sink_c, and usrp_sink_s.
| long usrp_sink_base::dac_freq |
( |
| ) |
const [inline] |
| long usrp_sink_base::dac_rate |
( |
| ) |
const [inline] |
| bool usrp_sink_base::has_rx_halfband |
( |
| ) |
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| bool usrp_sink_base::has_tx_halfband |
( |
| ) |
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| unsigned int usrp_sink_base::interp_rate |
( |
| ) |
const |
| int usrp_sink_base::mux |
( |
| ) |
const |
| int usrp_sink_base::nchannels |
( |
| ) |
const |
| int usrp_sink_base::nddcs |
( |
| ) |
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| int usrp_sink_base::nducs |
( |
| ) |
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| int usrp_sink_base::nunderruns |
( |
| ) |
const [inline] |
Select suitable Tx daughterboard.
| bool usrp_sink_base::set_interp_rate |
( |
unsigned int |
rate | ) |
|
Set interpolator rate. rate must be in [4, 1024] and a multiple of 4.
The final complex sample rate across the USB is dac_freq () / interp_rate () * nchannels ()
| bool usrp_sink_base::set_mux |
( |
int |
mux | ) |
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| bool usrp_sink_base::set_nchannels |
( |
int |
nchan | ) |
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| bool usrp_sink_base::set_tx_freq |
( |
int |
channel, |
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|
double |
freq |
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) |
| |
set the frequency of the digital up converter.
channel must be 0. freq is the center frequency in Hz. It must be in the range [-44M, 44M]. The frequency specified is quantized. Use tx_freq to retrieve the actual value used.
| bool usrp_sink_base::start |
( |
| ) |
[virtual] |
Called to enable drivers, etc for i/o devices.
This allows a block to enable an associated driver to begin transfering data just before we start to execute the scheduler. The end result is that this reduces latency in the pipeline when dealing with audio devices, usrps, etc.
Reimplemented from gr_block.
| bool usrp_sink_base::stop |
( |
| ) |
[virtual] |
Called to disable drivers, etc for i/o devices.
Reimplemented from gr_block.
High-level "tune" method. Works for the single channel case.
This method adjusts both the daughterboard LO and the DUC so that DC in the complex baseband samples ends up at RF target_freq.
- Parameters:
-
| chan | which DUC channel we're controlling (usually == which_side). |
| db | the daughterboard we're controlling. |
| target_freq | the RF frequency we want our baseband translated to. |
| [out] | result | details how the hardware was configured. |
- Returns:
- true iff everything was successful.
| double usrp_sink_base::tx_freq |
( |
int |
channel | ) |
const |
The documentation for this class was generated from the following file:
