diff options
Diffstat (limited to 'gr-qtgui/apps/usrp_display.py')
| -rwxr-xr-x | gr-qtgui/apps/usrp_display.py | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/gr-qtgui/apps/usrp_display.py b/gr-qtgui/apps/usrp_display.py new file mode 100755 index 000000000..432e74d9a --- /dev/null +++ b/gr-qtgui/apps/usrp_display.py @@ -0,0 +1,299 @@ +#!/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 +from gnuradio import usrp +from gnuradio import eng_notation +from gnuradio.eng_option import eng_option +from gnuradio.qtgui import qtgui +from optparse import OptionParser +import sys + +try: + from gnuradio.qtgui import qtgui + from PyQt4 import QtGui, QtCore + import sip +except ImportError: + print "Please install gr-qtgui." + sys.exit(1) + +try: + from usrp_display_qtgui import Ui_MainWindow +except ImportError: + print "Error: could not find usrp_display_qtgui.py:" + print "\t\"pyuic4 usrp_display_qtgui.ui -o usrp_display_qtgui.py\"" + sys.exit(1) + + + +# //////////////////////////////////////////////////////////////////// +# Define the QT Interface and Control Dialog +# //////////////////////////////////////////////////////////////////// + + +class main_window(QtGui.QMainWindow): + def __init__(self, snk, fg, parent=None): + + QtGui.QWidget.__init__(self, parent) + self.gui = Ui_MainWindow() + self.gui.setupUi(self) + + self.fg = fg + + # Add the qtsnk widgets to the layout box + self.gui.sinkLayout.addWidget(snk) + + # Connect up some signals + self.connect(self.gui.pauseButton, QtCore.SIGNAL("clicked()"), + self.pauseFg) + self.connect(self.gui.frequencyEdit, QtCore.SIGNAL("editingFinished()"), + self.frequencyEditText) + self.connect(self.gui.gainEdit, QtCore.SIGNAL("editingFinished()"), + self.gainEditText) + self.connect(self.gui.bandwidthEdit, QtCore.SIGNAL("editingFinished()"), + self.bandwidthEditText) + self.connect(self.gui.amplifierEdit, QtCore.SIGNAL("editingFinished()"), + self.amplifierEditText) + + self.connect(self.gui.actionSaveData, QtCore.SIGNAL("activated()"), + self.saveData) + self.gui.actionSaveData.setShortcut(QtGui.QKeySequence.Save) + + def pauseFg(self): + if(self.gui.pauseButton.text() == "Pause"): + self.fg.stop() + self.fg.wait() + self.gui.pauseButton.setText("Unpause") + else: + self.fg.start() + self.gui.pauseButton.setText("Pause") + + + # Functions to set the values in the GUI + def set_frequency(self, freq): + self.freq = freq + sfreq = eng_notation.num_to_str(self.freq) + self.gui.frequencyEdit.setText(QtCore.QString("%1").arg(sfreq)) + + def set_gain(self, gain): + self.gain = gain + self.gui.gainEdit.setText(QtCore.QString("%1").arg(self.gain)) + + def set_bandwidth(self, bw): + self.bw = bw + sbw = eng_notation.num_to_str(self.bw) + self.gui.bandwidthEdit.setText(QtCore.QString("%1").arg(sbw)) + + def set_amplifier(self, amp): + self.amp = amp + self.gui.amplifierEdit.setText(QtCore.QString("%1").arg(self.amp)) + + + # Functions called when signals are triggered in the GUI + def frequencyEditText(self): + try: + freq = eng_notation.str_to_num(self.gui.frequencyEdit.text().toAscii()) + self.fg.set_frequency(freq) + self.freq = freq + except RuntimeError: + pass + + def gainEditText(self): + try: + gain = float(self.gui.gainEdit.text()) + self.fg.set_gain(gain) + self.gain = gain + except ValueError: + pass + + def bandwidthEditText(self): + try: + bw = eng_notation.str_to_num(self.gui.bandwidthEdit.text().toAscii()) + self.fg.set_bandwidth(bw) + self.bw = bw + except ValueError: + pass + + def amplifierEditText(self): + try: + amp = float(self.gui.amplifierEdit.text()) + self.fg.set_amplifier_gain(amp) + self.amp = amp + except ValueError: + pass + + def saveData(self): + fileName = QtGui.QFileDialog.getSaveFileName(self, "Save data to file", "."); + if(len(fileName)): + self.fg.save_to_file(str(fileName)) + + +def pick_subdevice(u): + """ + The user didn't specify a subdevice on the command line. + If there's a daughterboard on A, select A. + If there's a daughterboard on B, select B. + Otherwise, select A. + """ + if u.db(0, 0).dbid() >= 0: # dbid is < 0 if there's no d'board or a problem + return (0, 0) + if u.db(0, 0).dbid() >= 0: + return (1, 0) + return (0, 0) + +class my_top_block(gr.top_block): + def __init__(self): + gr.top_block.__init__(self) + + parser = OptionParser(option_class=eng_option) + parser.add_option("-w", "--which", type="int", default=0, + help="select which USRP (0, 1, ...) default is %default", + metavar="NUM") + parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None, + help="select USRP Rx side A or B (default=first one with a daughterboard)") + parser.add_option("-A", "--antenna", default=None, + help="select Rx Antenna (only on RFX-series boards)") + parser.add_option("-W", "--bw", type="float", default=1e6, + help="set bandwidth of receiver [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("-8", "--width-8", action="store_true", default=False, + help="Enable 8-bit samples across USB") + parser.add_option( "--no-hb", action="store_true", default=False, + help="don't use halfband filter in usrp") + parser.add_option("-S", "--oscilloscope", action="store_true", default=False, + help="Enable oscilloscope display") + parser.add_option("", "--avg-alpha", type="eng_float", default=1e-1, + help="Set fftsink averaging factor, [default=%default]") + parser.add_option("", "--ref-scale", type="eng_float", default=13490.0, + help="Set dBFS=0dB input value, [default=%default]") + parser.add_option("", "--fft-size", type="int", default=2048, + help="Set FFT frame size, [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 + + # Call this before creating the Qt sink + self.qapp = QtGui.QApplication(sys.argv) + + self._fftsize = options.fft_size + + self.u = usrp.source_c(which=options.which) + self._adc_rate = self.u.converter_rate() + self.set_bandwidth(options.bw) + + if options.rx_subdev_spec is None: + options.rx_subdev_spec = pick_subdevice(self.u) + self._rx_subdev_spec = options.rx_subdev_spec + self.u.set_mux(usrp.determine_rx_mux_value(self.u, self._rx_subdev_spec)) + self.subdev = usrp.selected_subdev(self.u, self._rx_subdev_spec) + + self._gain_range = self.subdev.gain_range() + if options.gain is None: + # if no gain was specified, use the mid-point in dB + g = self._gain_range + options.gain = float(g[0]+g[1])/2 + self.set_gain(options.gain) + + if options.freq is None: + # if no frequency was specified, use the mid-point of the subdev + f = self.subdev.freq_range() + options.freq = float(f[0]+f[1])/2 + self.set_frequency(options.freq) + + self.snk = qtgui.sink_c(self._fftsize, gr.firdes.WIN_BLACKMAN_hARRIS, + self._freq, self._bandwidth, + "USRP Display", + True, True, False, True, False) + + # Set up internal amplifier + self.amp = gr.multiply_const_cc(0.0) + self.set_amplifier_gain(0.001) + + # Connect the flow graph + self.connect(self.u, self.amp, self.snk) + + + # Get the reference pointer to the SpectrumDisplayForm QWidget + # Wrap the pointer as a PyQt SIP object + # This can now be manipulated as a PyQt4.QtGui.QWidget + self.pysink = sip.wrapinstance(self.snk.pyqwidget(), QtGui.QWidget) + + self.main_win = main_window(self.pysink, self) + + self.main_win.set_frequency(self._freq) + self.main_win.set_gain(self._gain) + self.main_win.set_bandwidth(self._bandwidth) + self.main_win.set_amplifier(self._amp_value) + + self.main_win.show() + + def save_to_file(self, name): + # Pause the flow graph + self.stop() + self.wait() + + # Add file sink to save data + self.file_sink = gr.file_sink(gr.sizeof_gr_complex, name) + self.connect(self.amp, self.file_sink) + + # Restart flow graph + self.start() + + def set_gain(self, gain): + self._gain = gain + self.subdev.set_gain(self._gain) + + def set_frequency(self, freq): + self._freq = freq + self.u.tune(0, self.subdev, self._freq) + + try: + self.snk.set_frequency_range(self._freq, self._bandwidth) + except: + pass + + def set_bandwidth(self, bw): + self._bandwidth = bw + self._decim = int(self._adc_rate / self._bandwidth) + self.u.set_decim_rate(self._decim) + + try: + self.snk.set_frequency_range(self._freq, self._bandwidth) + except: + pass + + def set_amplifier_gain(self, amp): + self._amp_value = amp + self.amp.set_k(self._amp_value) + + +if __name__ == "__main__": + tb = my_top_block(); + tb.start() + tb.qapp.exec_() |