[Commit-gnuradio] r9117 - usrp2/branches/developers/eb/merge-wip/host-ng/apps

[eb]

Author: eb
Date: 2008-07-31 22:56:02 -0600 (Thu, 31 Jul 2008)
New Revision: 9117

Added:
   usrp2/branches/developers/eb/merge-wip/host-ng/apps/stdin_int32_fft.py
Log:
copied test code from host/apps to host-ng/apps

Copied: usrp2/branches/developers/eb/merge-wip/host-ng/apps/stdin_int32_fft.py 
(from rev 9112, 
usrp2/branches/developers/eb/merge-wip/host/apps/stdin_int32_fft.py)
===================================================================
--- usrp2/branches/developers/eb/merge-wip/host-ng/apps/stdin_int32_fft.py      
                        (rev 0)
+++ usrp2/branches/developers/eb/merge-wip/host-ng/apps/stdin_int32_fft.py      
2008-08-01 04:56:02 UTC (rev 9117)
@@ -0,0 +1,201 @@
+#!/usr/bin/env python
+#
+# Copyright 2004,2005,2007,2008 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 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
+
+
+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("-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("-W", "--waterfall", action="store_true", 
default=False,
+                          help="Enable waterfall display")
+        parser.add_option("-S", "--oscilloscope", action="store_true", 
default=False,
+                          help="Enable oscilloscope display")
+        (options, args) = parser.parse_args()
+        if len(args) != 0:
+            parser.print_help()
+            sys.exit(1)
+       self.options = options
+        self.options.gain = 1.0
+        self.show_debug_info = True
+        
+
+        input_rate = 100e6 / options.decim
+
+        self.src = gr.file_descriptor_source(gr.sizeof_short, 0, False);
+        self.s2c = gr.interleaved_short_to_complex()
+
+        if options.waterfall:
+            self.scope = \
+              waterfallsink2.waterfall_sink_c (panel, fft_size=1024, 
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, y_divs=12, 
sample_rate=input_rate,ref_level=110,fft_rate=20)
+
+        self.connect(self.src, self.s2c, self.scope)
+
+        self._build_gui(vbox)
+       self._setup_events()
+       
+        # set initial values
+
+        if options.freq is None:
+            # if no freq was specified, use the mid-point
+            options.freq = 0.0
+
+        if self.show_debug_info:
+            self.myform['decim'].set_value(self.options.decim)
+
+
+    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)
+        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), 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.
+        """
+        
+        if True:
+            self.myform['freq'].set_value(target_freq)     # update displayed 
value
+           if not self.options.waterfall and not self.options.oscilloscope:
+               self.scope.win.set_baseband_freq(target_freq)
+           return True
+
+        return False
+
+    def set_gain(self, gain):
+        self.myform['gain'].set_value(gain)     # update displayed value
+
+    def set_decim(self, decim):
+        input_rate = 100e6 / self.options.decim
+        self.scope.set_sample_rate(input_rate)
+        if self.show_debug_info:  # update displayed values
+            self.myform['decim'].set_value(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 ()