#!/usr/bin/env python
#
-# Copyright 2004,2005,2007 Free Software Foundation, Inc.
+# Copyright 2004,2005,2007,2008 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
from optparse import OptionParser
import wx
import sys
-
+import numpy
def pick_subdevice(u):
"""
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
+ 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:
+ if u.db(0, 0).dbid() >= 0:
return (1, 0)
return (0, 0)
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)")
+ 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)
- 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.waterfall:
self.scope = \
- waterfallsink2.waterfall_sink_c (panel, fft_size=1024, sample_rate=input_rate)
+ 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=1024, sample_rate=input_rate)
+ 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 self.show_debug_info:
self.myform['baseband'].set_value(r.baseband_freq)
self.myform['ddc'].set_value(r.dxc_freq)
- return True
+ if not self.options.oscilloscope:
+ self.scope.win.set_baseband_freq(target_freq)
+ return True
return False
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()
projects / debian / gnuradio / blobdiff