Changes in examples
diff --git a/examples/gsm_receiver_usrp_test.py b/examples/gsm_receiver_usrp_test.py
new file mode 100755
index 0000000..f34699d
--- /dev/null
+++ b/examples/gsm_receiver_usrp_test.py
@@ -0,0 +1,183 @@
+#!/usr/bin/env python
+##################################################
+# Gnuradio Python Flow Graph
+# Title: Gsm Receiver Usrp Test
+# Generated: Wed Aug 6 15:18:47 2014
+##################################################
+
+from gnuradio import eng_notation
+from gnuradio import gr
+from gnuradio import uhd
+from gnuradio import wxgui
+from gnuradio.eng_option import eng_option
+from gnuradio.fft import window
+from gnuradio.filter import firdes
+from gnuradio.wxgui import fftsink2
+from gnuradio.wxgui import forms
+from grc_gnuradio import wxgui as grc_wxgui
+from optparse import OptionParser
+import gsm
+import time
+import wx
+
+class gsm_receiver_usrp_test(grc_wxgui.top_block_gui):
+
+ def __init__(self, length=30):
+ grc_wxgui.top_block_gui.__init__(self, title="Gsm Receiver Usrp Test")
+ _icon_path = "/home/piotr/.local/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
+ self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))
+
+ ##################################################
+ # Parameters
+ ##################################################
+ self.length = length
+
+ ##################################################
+ # Variables
+ ##################################################
+ self.samp_rate = samp_rate = 100e6/100
+ self.g = g = 28
+ self.fc = fc = 937e6
+
+ ##################################################
+ # Blocks
+ ##################################################
+ _g_sizer = wx.BoxSizer(wx.VERTICAL)
+ self._g_text_box = forms.text_box(
+ parent=self.GetWin(),
+ sizer=_g_sizer,
+ value=self.g,
+ callback=self.set_g,
+ label='g',
+ converter=forms.float_converter(),
+ proportion=0,
+ )
+ self._g_slider = forms.slider(
+ parent=self.GetWin(),
+ sizer=_g_sizer,
+ value=self.g,
+ callback=self.set_g,
+ minimum=0,
+ maximum=50,
+ num_steps=100,
+ style=wx.SL_HORIZONTAL,
+ cast=float,
+ proportion=1,
+ )
+ self.Add(_g_sizer)
+ _fc_sizer = wx.BoxSizer(wx.VERTICAL)
+ self._fc_text_box = forms.text_box(
+ parent=self.GetWin(),
+ sizer=_fc_sizer,
+ value=self.fc,
+ callback=self.set_fc,
+ label='fc',
+ converter=forms.float_converter(),
+ proportion=0,
+ )
+ self._fc_slider = forms.slider(
+ parent=self.GetWin(),
+ sizer=_fc_sizer,
+ value=self.fc,
+ callback=self.set_fc,
+ minimum=900e6,
+ maximum=1000e6,
+ num_steps=500,
+ style=wx.SL_HORIZONTAL,
+ cast=float,
+ proportion=1,
+ )
+ self.Add(_fc_sizer)
+ self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
+ self.GetWin(),
+ baseband_freq=fc,
+ y_per_div=10,
+ y_divs=10,
+ ref_level=0,
+ ref_scale=2.0,
+ sample_rate=samp_rate,
+ fft_size=1024,
+ fft_rate=15,
+ average=False,
+ avg_alpha=None,
+ title="FFT Plot",
+ peak_hold=False,
+ )
+ self.GridAdd(self.wxgui_fftsink2_0.win, 1, 1, 1, 1)
+ self.uhd_usrp_source_0 = uhd.usrp_source(
+ ",".join(("addr=192.168.9.2", "")),
+ uhd.stream_args(
+ cpu_format="fc32",
+ channels=range(1),
+ ),
+ )
+ self.uhd_usrp_source_0.set_clock_source("external", 0)
+ self.uhd_usrp_source_0.set_samp_rate(samp_rate)
+ self.uhd_usrp_source_0.set_center_freq(fc, 0)
+ self.uhd_usrp_source_0.set_gain(g, 0)
+ self.gsm_receiver_hier_0 = gsm.receiver_hier(samp_rate, 4)
+ self.gsm_get_bcch_or_ccch_bursts_0 = gsm.get_bcch_or_ccch_bursts(2)
+ self.gsm_control_channels_decoder_0 = gsm.control_channels_decoder()
+
+ ##################################################
+ # Connections
+ ##################################################
+ self.connect((self.uhd_usrp_source_0, 0), (self.gsm_receiver_hier_0, 0))
+ self.connect((self.uhd_usrp_source_0, 0), (self.wxgui_fftsink2_0, 0))
+
+ ##################################################
+ # Asynch Message Connections
+ ##################################################
+ self.msg_connect(self.gsm_receiver_hier_0, "bursts", self.gsm_get_bcch_or_ccch_bursts_0, "bursts")
+ self.msg_connect(self.gsm_get_bcch_or_ccch_bursts_0, "bursts", self.gsm_control_channels_decoder_0, "bursts")
+
+
+ def get_length(self):
+ return self.length
+
+ def set_length(self, length):
+ self.length = length
+
+ def get_samp_rate(self):
+ return self.samp_rate
+
+ def set_samp_rate(self, samp_rate):
+ self.samp_rate = samp_rate
+ self.uhd_usrp_source_0.set_samp_rate(self.samp_rate)
+ self.wxgui_fftsink2_0.set_sample_rate(self.samp_rate)
+
+ def get_g(self):
+ return self.g
+
+ def set_g(self, g):
+ self.g = g
+ self._g_slider.set_value(self.g)
+ self._g_text_box.set_value(self.g)
+ self.uhd_usrp_source_0.set_gain(self.g, 0)
+
+ def get_fc(self):
+ return self.fc
+
+ def set_fc(self, fc):
+ self.fc = fc
+ self.uhd_usrp_source_0.set_center_freq(self.fc, 0)
+ self.wxgui_fftsink2_0.set_baseband_freq(self.fc)
+ self._fc_slider.set_value(self.fc)
+ self._fc_text_box.set_value(self.fc)
+
+if __name__ == '__main__':
+ import ctypes
+ import sys
+ if sys.platform.startswith('linux'):
+ try:
+ x11 = ctypes.cdll.LoadLibrary('libX11.so')
+ x11.XInitThreads()
+ except:
+ print "Warning: failed to XInitThreads()"
+ parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
+ parser.add_option("", "--length", dest="length", type="eng_float", default=eng_notation.num_to_str(30),
+ help="Set length [default=%default]")
+ (options, args) = parser.parse_args()
+ tb = gsm_receiver_usrp_test(length=options.length)
+ tb.Start(True)
+ tb.Wait()