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# Copyright 2009 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# GNU Radio is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GNU Radio is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Radio; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
import common
from gnuradio import gr, usrp
####################################################################
# Simple USRP Source
####################################################################
class _simple_source(gr.hier_block2):
"""A single usrp source of IO type short or complex."""
def __init__(self, which, side='A', rx_ant='RXA', no_hb=False):
"""
USRP simple source contructor.
@param which the unit number
@param side the usrp side A or B
@param rx_ant the antenna choice
@param no_hb disable half band filters
"""
self._no_hb = no_hb
#initialize hier2 block
gr.hier_block2.__init__(
self, 'usrp_simple_source',
gr.io_signature(0, 0, 0),
gr.io_signature(1, 1, self._get_io_size()),
)
#create usrp object
if self._no_hb: self._make_usrp(which=which, nchan=1, fpga_filename="std_4rx_0tx.rbf")
else: self._make_usrp(which=which, nchan=1)
subdev_spec = common.to_spec(side, rx_ant)
self._get_u().set_mux(usrp.determine_rx_mux_value(self._get_u(), subdev_spec))
self._subdev = usrp.selected_subdev(self._get_u(), subdev_spec)
if common.is_flex(rx_ant): self._subdev.select_rx_antenna(rx_ant)
#connect
self.connect(self._get_u(), self)
def set_decim_rate(self, decim):
self._get_u().set_decim_rate(int(decim))
if self._no_hb: #set the BW to half the sample rate
self._subdev.set_bw(self._get_u().converter_rate()/decim/2)
def set_frequency(self, frequency, verbose=False):
self._set_frequency(
chan=0, #ddc0
subdev=self._subdev,
frequency=frequency,
verbose=verbose,
)
def set_gain(self, gain): self._subdev.set_gain(gain)
class simple_source_c(_simple_source, common.usrp_source_c): pass
class simple_source_s(_simple_source, common.usrp_source_s): pass
####################################################################
# Simple USRP Sink
####################################################################
class _simple_sink(gr.hier_block2):
"""A single usrp sink of IO type short or complex."""
def __init__(self, which, side='A'):
"""
USRP simple sink contructor.
@param which the unit number
@param side the usrp side A or B
"""
#initialize hier2 block
gr.hier_block2.__init__(
self, 'usrp_simple_sink',
gr.io_signature(1, 1, self._get_io_size()),
gr.io_signature(0, 0, 0),
)
#create usrp object
self._make_usrp(which=which, nchan=1)
subdev_spec = common.to_spec(side)
self._get_u().set_mux(usrp.determine_tx_mux_value(self._get_u(), subdev_spec))
self._subdev = usrp.selected_subdev(self._get_u(), subdev_spec)
#connect
self.connect(self, self._get_u())
def set_interp_rate(self, interp): self._get_u().set_interp_rate(int(interp))
def set_frequency(self, frequency, verbose=False):
self._set_frequency(
chan=self._subdev.which(),
subdev=self._subdev,
frequency=frequency,
verbose=verbose,
)
def set_gain(self, gain): self._subdev.set_gain(gain)
def set_enable(self, enable): self._subdev.set_enable(enable)
def set_auto_tr(self, auto_tr): self._subdev.set_auto_tr(auto_tr)
class simple_sink_c(_simple_sink, common.usrp_sink_c): pass
class simple_sink_s(_simple_sink, common.usrp_sink_s): pass
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