Merge branch 'digital' of github.com:trondeau/gnuradio into digital

1 files changed, 78 insertions, 0 deletions

diff --git a/gr-uhd/apps/hf_radio/input.py b/gr-uhd/apps/hf_radio/input.py
new file mode 100644
index 000000000..2626ddfb5
--- /dev/null
+++ b/gr-uhd/apps/hf_radio/input.py
@@ -0,0 +1,78 @@
+# Copyright 2011 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.
+# 
+
+# Basic USRP setup and control.
+# It's only ever been tried with a basic rx daughter card.
+#
+# Imagine that the gnuradio boilerplate is here.
+#
+# M. Revnell 2005-Dec
+ 
+from gnuradio import gr
+from gnuradio import uhd
+
+class uhd_input(gr.hier_block2):
+    def __init__( self, address, samp_rate):
+        gr.hier_block2.__init__(self, "uhd_input",
+                                gr.io_signature(0,0,0),
+                                gr.io_signature(1,1,gr.sizeof_gr_complex))
+        
+        self.src = uhd.usrp_source(device_addr=address,
+                                   io_type=uhd.io_type.COMPLEX_FLOAT32,
+                                   num_channels=1)
+
+        self.src.set_samp_rate(samp_rate)
+        self.usrp_rate = self.src.get_samp_rate()
+
+        self.connect(self.src, self)
+
+    def set_freq(self, target_freq):
+        """
+        Set the center frequency.
+
+        @param target_freq: frequency in Hz
+        @type: bool
+        """
+        r = self.src.set_center_freq(target_freq, 0)
+
+        if r:
+            self.freq = target_freq
+     	    return True
+        else:
+            return False
+
+    def get_freq(self):
+        return self.src.get_center_freq(0)
+
+    def set_gain(self, gain):
+        self.gain = gain
+        self.src.set_gain(gain, 0)
+
+    def add_options(parser):        
+        parser.add_option("-a", "--address", type="string",
+                          default="addr=192.168.10.2",
+                          help="Address of UHD device, [default=%default]")
+        parser.add_option("-A", "--antenna", type="string", default=None,
+                          help="select Rx Antenna where appropriate")
+        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)")
+    add_options = staticmethod(add_options)