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From: | [ Cosmin ] |
Subject: | [Discuss-gnuradio] RE: Discuss-gnuradio Digest, Vol 74, Issue 75 |
Date: | Wed, 28 Jan 2009 15:04:25 +0000 |
Hi all, 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: address@hidden > Subject: Discuss-gnuradio Digest, Vol 74, Issue 75 > To: address@hidden > > Send Discuss-gnuradio mailing list submissions to > address@hidden > > 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 > address@hidden > > You can reach the person managing the list at > address@hidden > > 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 <address@hidden> > Subject: Re: [Discuss-gnuradio] Gmsk_demod() > To: gnuradio mailing list <address@hidden> > Message-ID: <address@hidden> > 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" <address@hidden> > Subject: [Discuss-gnuradio] block destructors > To: address@hidden > Message-ID: <address@hidden> > 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 <address@hidden> > Subject: [Discuss-gnuradio] gr-trellis.html > To: address@hidden > Message-ID: > <address@hidden> > 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 > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: http://lists.gnu.org/pipermail/discuss-gnuradio/attachments/20090127/dbb3b5ff/attachment.html > > ------------------------------ > > Message: 4 > Date: Wed, 28 Jan 2009 15:18:48 +1300 > From: Bari Bari <address@hidden> > Subject: [Discuss-gnuradio] Exploring the world of GNU > To: address@hidden > Message-ID: > <address@hidden> > 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. > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: http://lists.gnu.org/pipermail/discuss-gnuradio/attachments/20090128/bc0dad62/attachment.html > > ------------------------------ > > Message: 5 > Date: Wed, 28 Jan 2009 15:18:49 +1300 > From: Bari Bari <address@hidden> > Subject: [Discuss-gnuradio] Exploring the world of GNU > To: address@hidden > Message-ID: > <address@hidden> > 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. > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: http://lists.gnu.org/pipermail/discuss-gnuradio/attachments/20090128/72f4d39a/attachment.html > > ------------------------------ > > Message: 6 > Date: Tue, 27 Jan 2009 21:40:34 -0800 > From: Eric Blossom <address@hidden> > Subject: Re: [Discuss-gnuradio] Exploring the world of GNU > To: Bari Bari <address@hidden> > Cc: address@hidden > Message-ID: <address@hidden> > 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 <address@hidden> > Subject: [Discuss-gnuradio] help: cannot send after transport endpoint > shutdown > To: <address@hidden> > Message-ID: <address@hidden> > 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™. > http://www.microsoft.com/windows/windowslive/ > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: http://lists.gnu.org/pipermail/discuss-gnuradio/attachments/20090128/b816e7b1/attachment.html > > ------------------------------ > > Message: 8 > Date: Tue, 27 Jan 2009 21:48:10 -0800 > From: Eric Blossom <address@hidden> > Subject: Re: [Discuss-gnuradio] help: cannot send after transport > endpoint shutdown > To: Joreen Tan <address@hidden> > Cc: address@hidden > Message-ID: <address@hidden> > 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: <address@hidden> > > -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 <address@hidden> > Subject: Re: [Discuss-gnuradio] Write bin to SD card > To: Eric Blossom <address@hidden>, Yabo Li <address@hidden>, > address@hidden > Message-ID: > <address@hidden> > 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 <address@hidden> 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 > > careful! > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: http://lists.gnu.org/pipermail/discuss-gnuradio/attachments/20090127/83ad6e54/attachment.html > > ------------------------------ > > _______________________________________________ > Discuss-gnuradio mailing list > address@hidden > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > End of Discuss-gnuradio Digest, Vol 74, Issue 75 > ************************************************ Discutez sur Messenger où que vous soyez ! Mettez Messenger sur votre mobile ! |
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