[Discuss-gnuradio] problem with my program ( fft display frequency spotting)

[Icsor Onai]

Hello everybody,
I tried do a program that use the board mc4020 but
occured errors when I execute your script.

I would like to know if somebody implemented a fft
display frequency spotting using the board mc4020.

I find a program using the usrp developed by Chuck
Swiger but I didn`t find a program to the board mc4020


My program is this:

"
#!/usr/bin/env python
#
# Copyright 2004 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 2, 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., 59 Temple Place
- Suite 330,
# Boston, MA 02111-1307, USA.
# 

from gnuradio import gr
from gnuradio import mc4020
from gnuradio import eng_notation
from gnuradio.eng_option import eng_option
from gnuradio.wxgui import stdgui, fftsink
from optparse import OptionParser
import wx

import wx.lib.evtmgr as em


class app_flow_graph (stdgui.gui_flow_graph):
    def __init__(self, frame, panel, vbox, argv):
        stdgui.gui_flow_graph.__init__ (self, frame,
panel, vbox, argv)
 
        
        wx.ToolTip.Enable(True)
        wx.ToolTip.SetDelay(0)
        
        parser = OptionParser (option_class=eng_option)
        (options, args) = parser.parse_args ()
        
        
        input_rate = 20e6
        src = mc4020.source (input_rate,
mc4020.MCC_CH3_EN | mc4020.MCC_ALL_1V)
        cvt = gr.short_to_float ()
         block, fft_win = fftsink.make_fft_sink_f
(self, panel, "Rx Data", 512, input_rate)

            self.connect (src, cvt)
            self.connect (cvt, block)
            vbox.Add (fft_win, 1, wx.EXPAND)
            self.update_status_bar ()


        em.eventManager.Register(self.Mouse, wx.EVT_MOTION,
fft_win)

   

    def Mouse(self,event):
        fRel = ( event.GetX() - 48 ) / 141.5 - 2
       
       
self.fft.win.SetToolTip(wx.ToolTip(eng_notation.num_to_str(self.frequency
+ (fRel*1e6))))

    def handle_text_enter (self, event):
        str = event.GetString ()
        self.tc_freq.Clear ()
        cvt.set_rx_freq (0, eng_notation.str_to_num
(str))
        self.update_status_bar ()

 
            
        self.frame.GetStatusBar().SetStatusText (msg,
1)

        

def main ():
    app = stdgui.stdapp (app_flow_graph, "FFT")
    app.MainLoop ()

if __name__ == '__main__':
    main ()
"


Thanks



        


        
                
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