Hi all,Sorry I,ve forgot the included document,I have several questions to ask 
you, maybe you can help:First, I'm using gnuradio on Osx Tiger with python2.5 
(via Macports), and don't find any "gr_threading25.py" in my 
../gr/lib/python2.5/site-packages/gnuradio/gr, but only "gr_threading23.py" and 
"gr_threading24.py". Is this normal?Secondly, I would like to use puredata to 
pilot gnuradio applications and I use the jointed file.With this file, 
including the "net.pd" object, "ENTRY.py", "svr.py" and "testApplication.py" I 
hope modulate in real time gnuradio and the usrp. Of course for using "net.pd" 
I have to run a puredata [1] or pd-extended [1] application. But how to 
incorporate the "ENTRY.py", "svr.py" and "testApplication.py" within the 
gnuradio python scripts?How for example in the ../example/audio, I can change 
the frequency value of "mono_tone.py" (actually set to 650) in real time from 
puredata via "net.pd" using referred python scripts?I wish these manipulations 
could be possible. Like that gnuradio and usrp could reach with an 
extraordinary (via puredata) potential of interactivity and realtime 
manipulation.Best,Cosmin [1] http://puredata.info/downloads> Date: Wed, 28 Jan 
2009 01:42:48 -0500> From: discuss-gnuradio-requ...@gnu.org> Subject: 
Discuss-gnuradio Digest, Vol 74, Issue 75> To: discuss-gnuradio@gnu.org> > Send 
Discuss-gnuradio mailing list submissions to>     discuss-gnuradio@gnu.org> > 
To subscribe or unsubscribe via the World Wide Web, visit>  
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio> or, via email, send a 
message with subject or body 'help' to>   discuss-gnuradio-requ...@gnu.org> > 
You can reach the person managing the list at>      
discuss-gnuradio-ow...@gnu.org> > When replying, please edit your Subject line 
so it is more specific> than "Re: Contents of Discuss-gnuradio digest..."> > > 
Today's Topics:> >    1. Re: Gmsk_demod() (Achilleas Anastasopoulos)>    2. 
block destructors (Brett L. Trotter)>    3. gr-trellis.html (w w)>    4. 
Exploring the world of GNU (Bari Bari)>    5. Exploring the world of GNU (Bari 
Bari)>    6. Re: Exploring the world of GNU (Eric Blossom)>    7. help: cannot 
send after transport endpoint  shutdown (Joreen Tan)>    8. Re: help: cannot 
send after transport endpoint     shutdown>       (Eric Blossom)>    9. (no 
subject)>   10. Re: Write bin to SD card (Yabo Li)> > > 
----------------------------------------------------------------------> > 
Message: 1> Date: Tue, 27 Jan 2009 14:14:08 -0500> From: Achilleas 
Anastasopoulos <anas...@umich.edu>> Subject: Re: [Discuss-gnuradio] 
Gmsk_demod()> To: gnuradio mailing list <discuss-gnuradio@gnu.org>> Message-ID: 
<497f5d00.9000...@umich.edu>> Content-Type: text/plain; charset=ISO-8859-1; 
format=flowed> > Yufeng,> > For an example on how to do that with two 
convolutionally encoded > transmissions look at the GRC example in:> > 
http://gnuradio.org/trac/browser/gnuradio/trunk/grc/examples/trellis/interference_cancellation.grc>
 > > Achilleas> > > > > > > -------------------------------> Hello, everyone,> 
> We've just got two USRPs in our lab and we want to start using them to> do 
some demodulation.> > I'd like to use one of them to transmit the sum of two 
(uncoded)> signals, useful and interference, with possible relative scaling to> 
simulate different channels. At the receiver side, I wanna then> implement 
different demodulators, like treating interference as noise> or successive 
demodulation (demodulate interference, cancel and> demodulate user).> > Is 
there any reference I could take a look on how to implement this in> USRP? Many 
thanks!> > > > > ------------------------------> > Message: 2> Date: Tue, 27 
Jan 2009 13:21:25 -0600> From: "Brett L. Trotter" <br...@webtrotter.com>> 
Subject: [Discuss-gnuradio] block destructors> To: discuss-gnuradio@gnu.org> 
Message-ID: <497f5eb5.5010...@webtrotter.com>> Content-Type: text/plain; 
charset=ISO-8859-1> > I'm doing some logging of what time signal events happen 
and in the> destructor of a custom signal block, I'm printing a log line to a 
file,> followed by an fflush, but i'm not always getting my line. Is the> 
destructor not happening, or is something else transpiring?> > Is there a way 
to ensure a destructor will fire even if a user ctrl+c's> a flowgraph, 
especially with WXGUI/GRC, or is that not what is happening?> > > > > > 
------------------------------> > Message: 3> Date: Tue, 27 Jan 2009 14:48:40 
-0500> From: w w <biscuitk...@gmail.com>> Subject: [Discuss-gnuradio] 
gr-trellis.html> To: discuss-gnuradio@gnu.org> Message-ID:>       
<925738340901271148j6f2776dat612244aa042a1...@mail.gmail.com>> Content-Type: 
text/plain; charset="iso-8859-1"> > Greetings,> I was wondering if someone 
could provide the following file?   I went to> that location however 
gr-trellis.html is not there.  I read about this doc> in the readme file of the 
gr-trellis example  directrory.   There was> gr-trellis.xml but Internet 
Explorer won't display it and notepad is just> too painful.   Also, any other 
documentation on gr-trellis would be most> helpful.> > Thanks> > > 
http://gnuradio.utah.edu/svn/gnuradio/trunk/gr-trellis/doc/gr-trellis.html> 
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 > ------------------------------> > Message: 4> Date: Wed, 28 Jan 2009 
15:18:48 +1300> From: Bari Bari <barithegr...@gmail.com>> Subject: 
[Discuss-gnuradio] Exploring the world of GNU> To: discuss-gnuradio@gnu.org> 
Message-ID:>         
<8ca7a4e30901271818q3f6318eey934aff4961923...@mail.gmail.com>> Content-Type: 
text/plain; charset="iso-8859-1"> > Hi> I have just started work on gnu 
project.> Initially i got basic concept of Python and now studying gnuradio 
through> its website.can any body help me to give guidance about getting basic> 
knowledge so that I will be able to do some projects in this field. or any> 
body have some basic programs with description  to understand.> > Take care.> 
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 > ------------------------------> > Message: 5> Date: Wed, 28 Jan 2009 
15:18:49 +1300> From: Bari Bari <barithegr...@gmail.com>> Subject: 
[Discuss-gnuradio] Exploring the world of GNU> To: discuss-gnuradio@gnu.org> 
Message-ID:>         
<8ca7a4e30901271818q1e4d4ee7y44f94a2c9457e...@mail.gmail.com>> Content-Type: 
text/plain; charset="iso-8859-1"> > Hi> I have just started work on gnu 
project.> Initially i got basic concept of Python and now studying gnuradio 
through> its website.can any body help me to give guidance about getting basic> 
knowledge so that I will be able to do some projects in this field. or any> 
body have some basic programs with description  to understand.> > Take care.> 
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 > ------------------------------> > Message: 6> Date: Tue, 27 Jan 2009 
21:40:34 -0800> From: Eric Blossom <e...@comsec.com>> Subject: Re: 
[Discuss-gnuradio] Exploring the world of GNU> To: Bari Bari 
<barithegr...@gmail.com>> Cc: discuss-gnuradio@gnu.org> Message-ID: 
<20090128054034.ga...@comsec.com>> Content-Type: text/plain; charset=us-ascii> 
> On Wed, Jan 28, 2009 at 03:18:48PM +1300, Bari Bari wrote:> > Hi> > I have 
just started work on gnu project.> > Initially i got basic concept of Python 
and now studying gnuradio through> > its website.can any body help me to give 
guidance about getting basic> > knowledge so that I will be able to do some 
projects in this field. or any> > body have some basic programs with 
description  to understand.> > > > Take care.> > Start here:> >   
http://gnuradio.org/trac/wiki> > Note especially the GNU Radio FAQ and the USRP 
FAQ:> >   http://gnuradio.org/trac/wiki/FAQ>   
http://gnuradio.org/trac/wiki/UsrpFAQ> > Download the code and build it:> >   
http://gnuradio.org/trac/wiki/Download>   
http://gnuradio.org/trac/wiki/BuildGuide> > Look at the examples in:> >   
gnuradio-examples> > and some of standard utilities in:> >   gr-utils> > 
Assuming you've got a USRP, look at usrp_fft.py, usrp_oscope.py and 
usrp_siggen.py> > Most commands support a --help option.  Try using it.> > Also 
read the README files contained in the source code.> > > We've got a list of 
suggested reading:> >   http://gnuradio.org/trac/wiki/SuggestedReading> > > If 
you come up with questions, try to answer them with a web search> before 
posting your questions here.  We've answered a lot of questions> on this 
mailing list over the years...  The archives are well indexed by> google and 
friends.> > Welcome!> Eric> > > > > ------------------------------> > Message: 
7> Date: Wed, 28 Jan 2009 13:41:06 +0800> From: Joreen Tan 
<joreen...@hotmail.com>> Subject: [Discuss-gnuradio] help: cannot send after 
transport endpoint>    shutdown> To: <discuss-gnuradio@gnu.org>> Message-ID: 
<col119-w70f26755989edd68935b1d8b...@phx.gbl>> Content-Type: text/plain; 
charset="windows-1252"> > > Hi,>  > I have got this error message when i'm 
trying to use this two commands to free up the usb resource,>  > modprobe -vr 
ehci_hcd> modprobe -v ehci_hcd>  > the error message is: >  > usb_control_msg 
failed: error sending control message: Cannot send after transport endpoint 
shutdown>  > Can anyone help me with this? i don't really quite understand this 
error message.. It was initially working fine until i tried it for the second 
time.. Regards,Joreen> 
_________________________________________________________________> More than 
messages–check out the rest of the Windows Live™.> 
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 > ------------------------------> > Message: 8> Date: Tue, 27 Jan 2009 
21:48:10 -0800> From: Eric Blossom <e...@comsec.com>> Subject: Re: 
[Discuss-gnuradio] help: cannot send after transport>  endpoint        
shutdown> To: Joreen Tan <joreen...@hotmail.com>> Cc: discuss-gnuradio@gnu.org> 
Message-ID: <20090128054810.gb...@comsec.com>> Content-Type: text/plain; 
charset=us-ascii> > On Wed, Jan 28, 2009 at 01:41:06PM +0800, Joreen Tan 
wrote:> > > > Hi,> >  > > I have got this error message when i'm trying to use 
this two commands to free up the usb resource,> >  > > modprobe -vr ehci_hcd> > 
modprobe -v ehci_hcd> >  > > the error message is: > >  > > usb_control_msg 
failed: error sending control message: Cannot send after transport endpoint 
shutdown> > > Can anyone help me with this? i don't really quite understand 
this> > error message.. It was initially working fine until i tried it for> > 
the second time.. Regards,Joreen> > > > ------------------------------> > 
Message: 9> Message-ID: 
<mailman.227967.1233124968.26696.discuss-gnura...@gnu.org>> >  -r --remove>     
          This option causes modprobe to remove, rather than insert a mod->     
          ule.   If  the  modules  it depends on are also unused, modprobe>     
          will try to remove them, too.  Unlike insertion, more  than  one>     
          module  can  be  specified on the command line (it does not make>     
          sense to specify module parameters when removing modules).> >         
      There is usually no reason to remove  modules,  but  some  buggy>         
      modules require it.  Your kernel may not support removal of mod->         
      ules.> > Eric> > > > > ------------------------------> > Message: 10> 
Date: Tue, 27 Jan 2009 22:42:43 -0800> From: Yabo Li 
<yaboli.gnura...@gmail.com>> Subject: Re: [Discuss-gnuradio] Write bin to SD 
card> To: Eric Blossom <e...@comsec.com>, Yabo Li <yaboli.gnura...@gmail.com>,> 
     discuss-gnuradio@gnu.org> Message-ID:>  
<46e37da0901272242m59cc14cem54781fe11251b...@mail.gmail.com>> Content-Type: 
text/plain; charset="iso-8859-1"> > Hi Eric,> > Thanks very much for your 
reply.> > I tried to verify the bin that I programmed in the SD card using -v 
option.> No error message and no success message either. But if I plug in the 
SD card> to the USRP2, I still cannot get any LED on. Do you know what could 
cause> this problem? Thanks!> > Regards,> Yabo> > On Tue, Jan 27, 2009 at 2:32 
AM, Eric Blossom <e...@comsec.com> wrote:> > > On Mon, Jan 26, 2009 at 
11:15:15PM -0800, Yabo Li wrote:> > > Hi,> > >> > > I tried to follow the 
instructions in "USRP2UserFAQ" to program the SD> > card> > > with the bin 
files from http://gnuradio.org/releases/usrp2-bin/trunk/.> > > (txrx.bin and 
u2_rev3.bin), there is no error message showing up.> > However,> > > when I 
plug in the SD card into USRP2, and power on, I cannot get normal> > led> > > 
lights as I usually get with the right SD card. Is there anyway to verify> > > 
that I indeed programmed the SD card, or verify that what I programmed> > > 
matches with the bin files? BTW, I am using a 2G SD card. Thanks!> > >> > > 
Regards,> > > Yabo> >> > $ u2_flash_tool --help> > Usage: u2_flash_tool: 
[options] filename> >> > Options:> >  -h, --help            show this help 
message and exit> >  -w, --write           write FILE to TARGET slot> >  -v, 
--verify          verify FILE against TARGET slot> >  -r, --read            
read TARGET slot, write to FILE> >  -t TARGET, --target=TARGET> >               
         select TARGET slot from: fpga, s/w [default=s/w]> >  --dev=DEV         
    specify flash device file, e.g., /dev/sdb.  Be> >                        
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