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#!/usr/bin/env python
#
# 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.
#
from gnuradio import gr, gru
from gnuradio import usrp2
from gnuradio import eng_notation
from gnuradio.eng_option import eng_option
from gnuradio.qtgui import qtgui
from optparse import OptionParser
from PyQt4 import QtGui, QtCore
import sys, sip
class dialog_box(QtGui.QWidget):
def __init__(self, display, control):
QtGui.QWidget.__init__(self, None)
self.setWindowTitle('USRP2 Display')
self.boxlayout = QtGui.QBoxLayout(QtGui.QBoxLayout.LeftToRight, self)
self.boxlayout.addWidget(display, 1)
self.boxlayout.addWidget(control)
self.resize(800, 500)
class control_panel(QtGui.QWidget):
def __init__(self, usrp, qtsink, parent=None):
QtGui.QWidget.__init__(self, parent)
self.setWindowTitle('USRP2 Control Panel')
self.usrp = usrp
self.qtsink = qtsink
self.adc_rate = self.usrp.adc_rate()
self.freq = 0
self.decim = 0
self.bw = 0
self.gain = 0
self.setToolTip('Set the values of the USRP2')
QtGui.QToolTip.setFont(QtGui.QFont('OldEnglish', 10))
self.layout = QtGui.QFormLayout(self)
# Received frequency
self.freqEdit = QtGui.QLineEdit(self)
self.layout.addRow("Frequency:", self.freqEdit)
self.connect(self.freqEdit, QtCore.SIGNAL("editingFinished()"),
self.freqEditText)
# Receiver gain
self.gainEdit = QtGui.QLineEdit(self)
self.layout.addRow("Gain:", self.gainEdit)
self.connect(self.gainEdit, QtCore.SIGNAL("editingFinished()"),
self.gainEditText)
# Decim / Bandwidth
self.decimEdit = QtGui.QLineEdit(self)
self.layout.addRow("Decim Rate:", self.decimEdit)
self.connect(self.decimEdit, QtCore.SIGNAL("editingFinished()"),
self.decimEditText)
self.quit = QtGui.QPushButton('Close', self)
self.layout.addRow(self.quit)
self.connect(self.quit, QtCore.SIGNAL('clicked()'),
QtGui.qApp, QtCore.SLOT('quit()'))
def set_frequency(self, freq):
self.freq = freq
sfreq = eng_notation.num_to_str(self.freq)
self.freqEdit.setText(QtCore.QString("%1").arg(sfreq))
def set_gain(self, gain):
self.gain = gain
self.gainEdit.setText(QtCore.QString("%1").arg(self.gain))
def set_decim(self, decim):
self.decim = decim
self.bw = self.adc_rate / float(self.decim) / 1000.0
self.decimEdit.setText(QtCore.QString("%1").arg(self.decim))
def freqEditText(self):
try:
freq = eng_notation.str_to_num(self.freqEdit.text().toAscii())
r = self.usrp.set_center_freq(freq)
self.freq = freq
self.qtsink.set_frequency_range(self.freq, self.freq-self.bw/2.0, self.freq+self.bw/2.0)
except RuntimeError:
pass
#self.set_frequency(self.freq)
def gainEditText(self):
try:
gain = float(self.gainEdit.text())
self.usrp.set_gain(gain)
self.gain = gain
except ValueError:
pass
#self.set_gain(gain)
def decimEditText(self):
try:
decim = int(self.decimEdit.text())
self.usrp.set_decim(decim)
self.decim = decim
self.bw = self.adc_rate / self.decim
self.qtsink.set_frequency_range(-self.bw/2.0, self.bw/2.0, self.freq)
except ValueError:
pass
#self.set_decim(decim)
class app_top_block(gr.top_block):
def __init__(self):
gr.top_block.__init__(self)
parser = OptionParser(option_class=eng_option)
parser.add_option("-e", "--interface", type="string", default="eth0",
help="select Ethernet interface, default is eth0")
parser.add_option("-m", "--mac-addr", type="string", default="",
help="select USRP by MAC address, default is auto-select")
parser.add_option("-d", "--decim", type="int", default=16,
help="set fgpa decimation rate to DECIM [default=%default]")
parser.add_option("-f", "--freq", type="eng_float", default=None,
help="set frequency to FREQ", metavar="FREQ")
parser.add_option("-g", "--gain", type="eng_float", default=None,
help="set gain in dB (default is midpoint)")
parser.add_option("--fft-size", type="int", default=1024,
help="Set number of FFT bins [default=%default]")
(options, args) = parser.parse_args()
if len(args) != 0:
parser.print_help()
sys.exit(1)
self.options = options
self.show_debug_info = True
self.qapp = QtGui.QApplication(sys.argv)
self.u = usrp2.source_32fc(options.interface, options.mac_addr)
self.u.set_decim(options.decim)
input_rate = self.u.adc_rate() / self.u.decim()
self.snk = qtgui.sink_c(options.fft_size, gr.firdes.WIN_BLACKMAN_hARRIS,
-input_rate/2, input_rate/2,
"USRP2 Display",
True, True, False, True, False)
self.connect(self.u, self.snk)
if options.gain is None:
# if no gain was specified, use the mid-point in dB
g = self.u.gain_range()
options.gain = float(g[0]+g[1])/2
if options.freq is None:
# if no freq was specified, use the mid-point
r = self.u.freq_range()
options.freq = float(r[0]+r[1])/2
self.set_gain(options.gain)
r = self.u.set_center_freq(options.freq)
if self.show_debug_info:
print "Decimation rate: ", self.u.decim()
print "Bandwidth: ", input_rate
print "D'board: ", self.u.daughterboard_id()
self.ctrl_win = control_panel(self.u, self.snk)
self.ctrl_win.set_frequency(options.freq)
self.ctrl_win.set_gain(options.gain)
self.ctrl_win.set_decim(options.decim)
# Get the reference pointer to the SpectrumDisplayForm QWidget
pyQt = self.snk.pyqwidget()
# Wrap the pointer as a PyQt SIP object
# This can now be manipulated as a PyQt4.QtGui.QWidget
pyWin = sip.wrapinstance(pyQt, QtGui.QWidget)
self.main_box = dialog_box(pyWin, self.ctrl_win)
self.main_box.show()
def set_gain(self, gain):
self.u.set_gain(gain)
def set_decim(self, decim):
ok = self.u.set_decim(decim)
if not ok:
print "set_decim failed"
input_rate = self.u.adc_rate() / self.u.decim()
return ok
def main ():
tb = app_top_block()
tb.start()
tb.snk.exec_();
if __name__ == '__main__':
try:
main ()
except KeyboardInterrupt:
pass
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