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Diffstat (limited to 'gr-utils/src/python/usrp_fft.py')
| -rwxr-xr-x | gr-utils/src/python/usrp_fft.py | 309 |
1 files changed, 0 insertions, 309 deletions
diff --git a/gr-utils/src/python/usrp_fft.py b/gr-utils/src/python/usrp_fft.py deleted file mode 100755 index eda9bd57c..000000000 --- a/gr-utils/src/python/usrp_fft.py +++ /dev/null @@ -1,309 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2004,2005,2007,2008,2010 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 usrp -from gnuradio import eng_notation -from gnuradio.eng_option import eng_option -from gnuradio.wxgui import stdgui2, fftsink2, waterfallsink2, scopesink2, form, slider -from optparse import OptionParser -import wx -import sys -import numpy - -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(1, 0).dbid() >= 0: - return (1, 0) - return (0, 0) - - -class app_top_block(stdgui2.std_top_block): - def __init__(self, frame, panel, vbox, argv): - stdgui2.std_top_block.__init__(self, frame, panel, vbox, argv) - - self.frame = frame - self.panel = panel - - 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("-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("-W", "--waterfall", action="store_true", default=False, - help="Enable waterfall display") - 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=1024, - 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 - - # build the graph - if options.no_hb or (options.decim<8): - #Min decimation of this firmware is 4. - #contains 4 Rx paths without halfbands and 0 tx paths. - self.fpga_filename="std_4rx_0tx.rbf" - self.u = usrp.source_c(which=options.which, decim_rate=options.decim, fpga_filename=self.fpga_filename) - else: - #Min decimation of standard firmware is 8. - #standard fpga firmware "std_2rxhb_2tx.rbf" - #contains 2 Rx paths with halfband filters and 2 tx paths (the default) - self.u = usrp.source_c(which=options.which, decim_rate=options.decim) - - if options.rx_subdev_spec is None: - options.rx_subdev_spec = pick_subdevice(self.u) - self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec)) - - if options.width_8: - width = 8 - shift = 8 - format = self.u.make_format(width, shift) - print "format =", hex(format) - r = self.u.set_format(format) - print "set_format =", r - - # determine the daughterboard subdevice we're using - self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec) - - input_rate = self.u.adc_freq() / self.u.decim_rate() - - if options.waterfall: - self.scope = \ - waterfallsink2.waterfall_sink_c (panel, fft_size=options.fft_size, sample_rate=input_rate) - elif options.oscilloscope: - self.scope = scopesink2.scope_sink_c(panel, sample_rate=input_rate) - else: - self.scope = fftsink2.fft_sink_c (panel, fft_size=options.fft_size, sample_rate=input_rate, - ref_scale=options.ref_scale, ref_level=0.0, y_divs = 10, - avg_alpha=options.avg_alpha) - - self.connect(self.u, self.scope) - - self._build_gui(vbox) - self._setup_events() - - # set initial values - - if options.gain is None: - # if no gain was specified, use the mid-point in dB - g = self.subdev.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.subdev.freq_range() - options.freq = float(r[0]+r[1])/2 - - self.set_gain(options.gain) - - if options.antenna is not None: - print "Selecting antenna %s" % (options.antenna,) - self.subdev.select_rx_antenna(options.antenna) - - if self.show_debug_info: - self.myform['decim'].set_value(self.u.decim_rate()) - self.myform['fs@usb'].set_value(self.u.adc_freq() / self.u.decim_rate()) - self.myform['dbname'].set_value(self.subdev.name()) - self.myform['baseband'].set_value(0) - self.myform['ddc'].set_value(0) - - if not(self.set_freq(options.freq)): - self._set_status_msg("Failed to set initial frequency") - - def _set_status_msg(self, msg): - self.frame.GetStatusBar().SetStatusText(msg, 0) - - def _build_gui(self, vbox): - - def _form_set_freq(kv): - return self.set_freq(kv['freq']) - - vbox.Add(self.scope.win, 10, wx.EXPAND) - - # add control area at the bottom - self.myform = myform = form.form() - hbox = wx.BoxSizer(wx.HORIZONTAL) - hbox.Add((5,0), 0, 0) - myform['freq'] = form.float_field( - parent=self.panel, sizer=hbox, label="Center freq", weight=1, - callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg)) - - hbox.Add((5,0), 0, 0) - g = self.subdev.gain_range() - myform['gain'] = form.slider_field(parent=self.panel, sizer=hbox, label="Gain", - weight=3, - min=int(g[0]), max=int(g[1]), - callback=self.set_gain) - - hbox.Add((5,0), 0, 0) - vbox.Add(hbox, 0, wx.EXPAND) - - self._build_subpanel(vbox) - - def _build_subpanel(self, vbox_arg): - # build a secondary information panel (sometimes hidden) - - # FIXME figure out how to have this be a subpanel that is always - # created, but has its visibility controlled by foo.Show(True/False) - - def _form_set_decim(kv): - return self.set_decim(kv['decim']) - - if not(self.show_debug_info): - return - - panel = self.panel - vbox = vbox_arg - myform = self.myform - - #panel = wx.Panel(self.panel, -1) - #vbox = wx.BoxSizer(wx.VERTICAL) - - hbox = wx.BoxSizer(wx.HORIZONTAL) - hbox.Add((5,0), 0) - - myform['decim'] = form.int_field( - parent=panel, sizer=hbox, label="Decim", - callback=myform.check_input_and_call(_form_set_decim, self._set_status_msg)) - - hbox.Add((5,0), 1) - myform['fs@usb'] = form.static_float_field( - parent=panel, sizer=hbox, label="Fs@USB") - - hbox.Add((5,0), 1) - myform['dbname'] = form.static_text_field( - parent=panel, sizer=hbox) - - hbox.Add((5,0), 1) - myform['baseband'] = form.static_float_field( - parent=panel, sizer=hbox, label="Analog BB") - - hbox.Add((5,0), 1) - myform['ddc'] = form.static_float_field( - parent=panel, sizer=hbox, label="DDC") - - hbox.Add((5,0), 0) - vbox.Add(hbox, 0, wx.EXPAND) - - - def set_freq(self, target_freq): - """ - Set the center frequency we're interested in. - - @param target_freq: frequency in Hz - @rypte: bool - - Tuning is a two step process. First we ask the front-end to - tune as close to the desired frequency as it can. Then we use - the result of that operation and our target_frequency to - determine the value for the digital down converter. - """ - r = self.u.tune(0, self.subdev, target_freq) - - if r: - self.myform['freq'].set_value(target_freq) # update displayed value - if self.show_debug_info: - self.myform['baseband'].set_value(r.baseband_freq) - self.myform['ddc'].set_value(r.dxc_freq) - if not self.options.oscilloscope: - self.scope.set_baseband_freq(target_freq) - return True - - return False - - def set_gain(self, gain): - self.myform['gain'].set_value(gain) # update displayed value - self.subdev.set_gain(gain) - - def set_decim(self, decim): - ok = self.u.set_decim_rate(decim) - if not ok: - print "set_decim failed" - input_rate = self.u.adc_freq() / self.u.decim_rate() - self.scope.set_sample_rate(input_rate) - if self.show_debug_info: # update displayed values - self.myform['decim'].set_value(self.u.decim_rate()) - self.myform['fs@usb'].set_value(self.u.adc_freq() / self.u.decim_rate()) - return ok - - def _setup_events(self): - if not self.options.waterfall and not self.options.oscilloscope: - self.scope.win.Bind(wx.EVT_LEFT_DCLICK, self.evt_left_dclick) - - def evt_left_dclick(self, event): - (ux, uy) = self.scope.win.GetXY(event) - if event.CmdDown(): - # Re-center on maximum power - points = self.scope.win._points - if self.scope.win.peak_hold: - if self.scope.win.peak_vals is not None: - ind = numpy.argmax(self.scope.win.peak_vals) - else: - ind = int(points.shape()[0]/2) - else: - ind = numpy.argmax(points[:,1]) - (freq, pwr) = points[ind] - target_freq = freq/self.scope.win._scale_factor - print ind, freq, pwr - self.set_freq(target_freq) - else: - # Re-center on clicked frequency - target_freq = ux/self.scope.win._scale_factor - self.set_freq(target_freq) - - -def main (): - app = stdgui2.stdapp(app_top_block, "USRP FFT", nstatus=1) - app.MainLoop() - -if __name__ == '__main__': - main () |