This completes the msdd6000 update with all example code and other utilities

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8786 221aa14e-8319-0410-a670-987f0aec2ac5
author: n4hy <n4hy@221aa14e-8319-0410-a670-987f0aec2ac5> 2008-07-04 03:05:33 +0000
committer: n4hy <n4hy@221aa14e-8319-0410-a670-987f0aec2ac5> 2008-07-04 03:05:33 +0000
commit: 2b77cc7bc535618c4bba6ce1f3d6fa388e843933 (patch)
tree: 1bc0fb845745408e1f6ab795bd22f61896e89afa /gr-msdd6000/src/python-examples/msdd_rcv.py
parent: f658162db53edff09fe4c843e05dc6f02e78adfa (diff)
1 files changed, 287 insertions, 0 deletions
diff --git a/gr-msdd6000/src/python-examples/msdd_rcv.py b/gr-msdd6000/src/python-examples/msdd_rcv.py
new file mode 100755
index 0000000000..cc2f3e4a32
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+++ b/gr-msdd6000/src/python-examples/msdd_rcv.py
@@ -0,0 +1,287 @@
+#!/usr/bin/env python
+#
+# Copyright 2005,2006,2007 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, eng_notation
+from gnuradio import msdd
+from gnuradio import blks2
+from gnuradio.eng_option import eng_option
+from gnuradio.wxgui import slider, powermate
+from gnuradio.wxgui import stdgui2, form
+from gnuradio.wxgui import fftsink2
+from optparse import OptionParser
+#from usrpm import usrp_dbid
+import sys
+import math
+import wx
+
+class wfm_rx_block (stdgui2.std_top_block):
+    def __init__(self,frame,panel,vbox,argv):
+        stdgui2.std_top_block.__init__ (self,frame,panel,vbox,argv)
+
+        parser=OptionParser(option_class=eng_option)        
+#        parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None,
+#                          help="select MSDD Rx side A or B (default=A)")
+        parser.add_option("-f", "--freq", type="eng_float", default=100.1e6,
+                          help="set frequency to FREQ", metavar="FREQ")
+        parser.add_option("-g", "--gain", type="eng_float", default=40,
+                          help="set gain in dB (default is midpoint)")
+#        parser.add_option("-V", "--volume", type="eng_float", default=None,
+#                          help="set volume (default is midpoint)")
+#        parser.add_option("-O", "--audio-output", type="string", default="",
+#                          help="pcm device name.  E.g., hw:0,0 or surround51 or /dev/dsp")
+
+        (options, args) = parser.parse_args()
+        if len(args) != 0:
+            parser.print_help()
+            sys.exit(1)
+        
+        self.frame = frame
+        self.panel = panel
+        
+        self.vol = 0
+        self.gain_range = (10, 70, .5)
+        self.state = "FREQ"
+        self.freq = 0
+        msdd_decim = 2
+
+        # build graph
+        self.fft_size = 8192
+        self.sample_rate = 200
+        self.u = msdd.source_c(0, 1, "10.45.4.44", 10000)
+        self.u.set_decim_rate(4)
+        self.u.set_desired_packet_size(0, 1460*100)        
+
+
+        #self.u.set_decim_rate(msdd_decim)
+#        usrp_rate = adc_rate / msdd_decim           # 320 kS/s
+#        chanfilt_decim = 1
+#        demod_rate = usrp_rate / chanfilt_decim
+#        audio_decimation = 10
+#        audio_rate = demod_rate / audio_decimation  # 32 kHz
+#
+#        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))
+#        self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec)
+#        print "Using RX d'board %s" % (self.subdev.side_and_name(),)
+#
+#
+#        chan_filt_coeffs = optfir.low_pass (1,           # gain
+#                                            usrp_rate,   # sampling rate
+#                                            80e3,        # passband cutoff
+#                                            115e3,       # stopband cutoff
+#                                            0.1,         # passband ripple
+#                                            60)          # stopband attenuation
+#        #print len(chan_filt_coeffs)
+#        chan_filt = gr.fir_filter_ccf (chanfilt_decim, chan_filt_coeffs)
+#
+#        self.guts = blks2.wfm_rcv (demod_rate, audio_decimation)
+#
+#        self.volume_control = gr.multiply_const_ff(self.vol)
+#
+#        # sound card as final sink
+#        audio_sink = audio.sink (int (audio_rate),
+#                                 options.audio_output,
+#                                 False)  # ok_to_block
+        
+        # now wire it all together
+        #self.connect (self.u, chan_filt, self.guts, self.volume_control, audio_sink)
+
+        self._build_gui(vbox)
+
+        if options.gain is None:
+            # if no gain was specified, use the mid-point in dB
+            #g = self.subdev.gain_range()
+            g = self.gain_range
+            options.gain = float(g[0]+g[1])/2
+#
+#        if options.volume is None:
+#            g = self.volume_range()
+#            options.volume = float(g[0]+g[1])/2
+#            
+#        if abs(options.freq) < 1e6:
+#            options.freq *= 1e6
+
+        # set initial values
+#
+        self.set_gain(options.gain)
+#        self.set_vol(options.volume)
+        if not(self.set_freq(options.freq)):
+            self._set_status_msg("Failed to set initial frequency")
+        print "Frequency: ", self.u.rx_freq(0)
+
+
+    def _set_status_msg(self, msg, which=0):
+        self.frame.GetStatusBar().SetStatusText(msg, which)
+
+
+    def _build_gui(self, vbox):
+
+        def _form_set_freq(kv):
+            return self.set_freq(kv['freq'])
+
+        self.src_fft = None
+        if 1:
+            self.src_fft = fftsink2.fft_sink_c(self.panel, title="Data from MSDD",
+                                               fft_size=512, sample_rate=512)
+#            self.s2f1 = gr.short_to_float()
+#            self.scope = scopesink2.scope_sink_f(self.panel, sample_rate=self.sample_rate*self.fft_size)
+            
+            self.connect (self.u, self.src_fft)
+            #self.connect (self.s2f1, self.scope)
+            vbox.Add (self.src_fft.win, 4, wx.EXPAND)
+#
+#        if 1:
+#            post_filt_fft = fftsink2.fft_sink_f(self.panel, title="Post Demod", 
+#                                                fft_size=1024, sample_rate=usrp_rate,
+#                                                y_per_div=10, ref_level=0)
+#            self.connect (self.guts.fm_demod, post_filt_fft)
+#            vbox.Add (post_filt_fft.win, 4, wx.EXPAND)
+#
+#        if 0:
+#            post_deemph_fft = fftsink2.fft_sink_f(self.panel, title="Post Deemph",
+#                                                  fft_size=512, sample_rate=audio_rate,
+#                                                  y_per_div=10, ref_level=-20)
+#            self.connect (self.guts.deemph, post_deemph_fft)
+#            vbox.Add (post_deemph_fft.win, 4, wx.EXPAND)
+
+        
+        # control area form at bottom
+        self.myform = myform = form.form()
+
+        hbox = wx.BoxSizer(wx.HORIZONTAL)
+        hbox.Add((5,0), 0)
+        myform['freq'] = form.float_field(
+            parent=self.panel, sizer=hbox, label="Freq", weight=1,
+            callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg))
+
+        hbox.Add((5,0), 0)
+        myform['freq_slider'] = \
+            form.quantized_slider_field(parent=self.panel, sizer=hbox, weight=3,
+                                        range=(30e6, 6e9, 1e6),
+                                        callback=self.set_freq)
+        hbox.Add((5,0), 0)
+        vbox.Add(hbox, 0, wx.EXPAND)
+
+        hbox = wx.BoxSizer(wx.HORIZONTAL)
+        hbox.Add((5,0), 0)
+#
+#        myform['volume'] = \
+#            form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Volume",
+#                                        weight=3, range=self.volume_range(),
+#                                        callback=self.set_vol)
+#        hbox.Add((5,0), 1)
+
+        myform['gain'] = \
+            form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Gain",
+                                        weight=3, range=self.gain_range,
+                                        callback=self.set_gain)
+        hbox.Add((5,0), 0)
+        vbox.Add(hbox, 0, wx.EXPAND)
+#
+#        try:
+#            self.knob = powermate.powermate(self.frame)
+#            self.rot = 0
+#            powermate.EVT_POWERMATE_ROTATE (self.frame, self.on_rotate)
+#            powermate.EVT_POWERMATE_BUTTON (self.frame, self.on_button)
+#        except:
+#            print "FYI: No Powermate or Contour Knob found"
+
+
+    def on_rotate (self, event):
+        self.rot += event.delta
+        if (self.state == "FREQ"):
+            if self.rot >= 3:
+                self.set_freq(self.freq + .1e6)
+                self.rot -= 3
+            elif self.rot <=-3:
+                self.set_freq(self.freq - .1e6)
+                self.rot += 3
+        else:
+            step = self.volume_range()[2]
+            if self.rot >= 3:
+                self.set_vol(self.vol + step)
+                self.rot -= 3
+            elif self.rot <=-3:
+                self.set_vol(self.vol - step)
+                self.rot += 3
+            
+    def on_button (self, event):
+        if event.value == 0:        # button up
+            return
+        self.rot = 0
+        if self.state == "FREQ":
+            self.state = "VOL"
+        else:
+            self.state = "FREQ"
+        self.update_status_bar ()
+#        
+#
+#    def set_vol (self, vol):
+#        g = self.volume_range()
+#        self.vol = max(g[0], min(g[1], vol))
+#        self.volume_control.set_k(10**(self.vol/10))
+#        self.myform['volume'].set_value(self.vol)
+#        self.update_status_bar ()
+                                        
+    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.set_rx_freq(0, target_freq);
+        
+        if r:
+            self.freq = target_freq
+            self.myform['freq'].set_value(target_freq)         # update displayed value
+            self.myform['freq_slider'].set_value(target_freq)  # update displayed value
+            self.update_status_bar()
+            self._set_status_msg("OK", 0)
+            return True
+
+        self._set_status_msg("Failed", 0)
+        return False
+
+    def set_gain(self, gain):
+        self.myform['gain'].set_value(gain)     # update displayed value
+        self.u.set_pga(0,gain)
+        
+    def update_status_bar (self):
+        msg = "Volume:%r  Setting:%s" % (self.vol, self.state)
+        self._set_status_msg(msg, 1)
+        #self.src_fft.set_baseband_freq(self.freq)
+#
+#    def volume_range(self):
+#        return (-20.0, 0.0, 0.5)
+        
+
+if __name__ == '__main__':
+    app = stdgui2.stdapp (wfm_rx_block, "MSDD FFT RX")
+    app.MainLoop ()
author	n4hy <n4hy@221aa14e-8319-0410-a670-987f0aec2ac5>	2008-07-04 03:05:33 +0000
committer	n4hy <n4hy@221aa14e-8319-0410-a670-987f0aec2ac5>	2008-07-04 03:05:33 +0000
commit	2b77cc7bc535618c4bba6ce1f3d6fa388e843933 (patch)
tree	1bc0fb845745408e1f6ab795bd22f61896e89afa /gr-msdd6000/src/python-examples/msdd_rcv.py
parent	f658162db53edff09fe4c843e05dc6f02e78adfa (diff)