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[Discuss-gnuradio] Problems with USRP
From: |
Anastasopoulos Achilleas |
Subject: |
[Discuss-gnuradio] Problems with USRP |
Date: |
Tue, 12 Apr 2005 11:27:36 -0400 (EDT) |
Dear all,
I received the USRP, followed the WiKi instruction and
it seems to be working since I get meaningful result when I run
test_usrp_standard_tx and test_usrp_standard_rx.
I have also updated my gnuradio installation using
tarballs 2.5
However I have problems running any of the python
scripts on gnuradio-examples that involve the USRP.
I have sanitized one of the scripts and it works fine when I
comment out the
from gnuradio import usrp
line
but it gives an error otherwise.
I attach the simple script and error message.
Any idea as to what might be wrong?
Thanks
Achilleas
===================================================
#!/usr/bin/env python
from gnuradio import gr
from gnuradio.wxgui import stdgui, fftsink
import wx
#from gnuradio import usrp
class nbfm_rx_graph (stdgui.gui_flow_graph):
def __init__(self,frame,panel,vbox,argv):
stdgui.gui_flow_graph.__init__ (self,frame,panel,vbox,argv)
src = gr.sig_source_c (256e3, gr.GR_SIN_WAVE, 20e3, 1e1)
usrp_fft, fft_win1 = \
fftsink.make_fft_sink_c (self, panel, "USRP Output",
512,
256e3, 0, 100)
self.connect (src, usrp_fft)
vbox.Add (fft_win1, 1, wx.EXPAND)
def main():
app = stdgui.stdapp (nbfm_rx_graph, "NBFM RX")
app.MainLoop ()
if __name__ == '__main__':
main()
===================================================
Traceback (most recent call last):
File "./test2.py", line 29, in ?
main()
File "./test2.py", line 25, in main
app = stdgui.stdapp (nbfm_rx_graph, "NBFM RX")
File "/usr/local/lib/python2.3/site-packages/gnuradio/wxgui/stdgui.py",
line 35, in __init__
wx.App.__init__ (self)
File "/usr/lib/python2.3/site-packages/wx-2.5.3-gtk-ansi/wx/_core.py",
line 5301, in __init__
self._BootstrapApp()
File "/usr/lib/python2.3/site-packages/wx-2.5.3-gtk-ansi/wx/_core.py",
line 4980, in _BootstrapApp
return _core_.PyApp__BootstrapApp(*args, **kwargs)
File "/usr/local/lib/python2.3/site-packages/gnuradio/wxgui/stdgui.py",
line 38, in OnInit
frame = stdframe (self.flow_graph_maker, self.title)
File "/usr/local/lib/python2.3/site-packages/gnuradio/wxgui/stdgui.py",
line 59, in __init__
self.panel = stdpanel (self, self, flow_graph_maker)
File "/usr/local/lib/python2.3/site-packages/gnuradio/wxgui/stdgui.py",
line 85, in __init__
self.fg.start ()
File "/usr/local/lib/python2.3/site-packages/gnuradio/gr/flow_graph.py",
line 73, in start
self.scheduler = scheduler (self)
File "/usr/local/lib/python2.3/site-packages/gnuradio/gr/scheduler.py",
line 49, in __init__
sts = single_threaded_scheduler (list_of_blocks)
File
"/usr/local/lib/python2.3/site-packages/gnuradio/gr/gnuradio_swig_python.py",
line 1484, in single_threaded_scheduler
return _gnuradio_swig_python.single_threaded_scheduler(*args)
TypeError: argument number 1: a 'gr_block_sptr' is expected,
'gr_block_sptrPtr(<gr_block sig_source_c (0)>)' is received in sequence
element 0
=================================================
- [Discuss-gnuradio] Problems with USRP,
Anastasopoulos Achilleas <=