RE: [Discuss-gnuradio] C++ and python in OFDM doubt

... But I don't remember who it was... I think it was a .de- address... Try your favorite search-engine-provider ;) Best regards, Mattias Kjellsson ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Hi all, how to change usrp clock to 52M in gnuradio 3.3

Hi all, I want to change usrp clock to 52M, there are some document about change usrp clock in gnuradio 3.1 and 3.2 but none for 3.3. how to change usrp clock to 52M in gnuradio 3.3 ? There is a dedicated list for open-bts. I think they should know, since they change oscillators "all the

[Discuss-gnuradio] RE: Daughter Board RFX2400

My task here is to activate the local oscillator on the daughterboard itself in order to have the USRP2 perform as a tx standalone device. As I can remember it, there was a "special firmware" for operating the USRP in standalone mode. Is it that one you are using? Regards, Mattias _

Re: [Discuss-gnuradio] alpha =0.001 in gr.probe_avg_mag_sqrd_cf

On 06/03/2010 11:54 PM, Juan Quiroz wrote: Hi all I had a problem with tunnel.py, but changing threshold from 30dB to 50dB it was solved, now I'm reading receive_path.py in carrier sensing blocks are defined alpha=0.001 and thres=30 for use with gr.probe_avg_mag_sqrd_cf, please can somebody t

Re: [Discuss-gnuradio] USB Help Needed!

++ to python is straight forward. You should be able to look at how USRPs are set up in Python and do almost the same thing in c/c++. BR Mattias Kjellsson ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] audio_portaudio_source error during building gnuradio

install process is fine without any error. The version name is GNU Radio release 3.3git-725-g8d3a78da. Hope this information will be useful to others. regards, han Mattias Kjellsson wrote: The version I downloaded is Configured GNU Radio release 3.3git-740-ge445 for build I

Re: [Discuss-gnuradio] audio_portaudio_source error during building gnuradio

have seen this from (mostly) gmail users lately, so I assume there are no problems when using that. Not everyone want/will/do use gmail, and the messages gets kind of hard to follow... Best regards Mattias Kjellsson ___ Discuss-gnuradio mailing l

[Discuss-gnuradio] Regarding gr_squelch_base_cc.cc

Hi list, I was looking at the gr_pwr_squelch_cc- code, and there is a thing I just want to check the meaning of. It is not as much that I don't believe the code works correctly, it's just that some lines of code confuse and scare me. ;) The lines are 59 and 64, 57: case ST_MUTED: 58: if (!mut

Re: [Discuss-gnuradio] Problem with new install

William Pretty Security Inc wrote: Hi All; Well I picked up my new system at Best Buy. (details later) I installed Ubuntu 9.10 and Gnuradio from the git. I must have made a typo somewhere because I get the following error when I probe the USRP1:

Re: [Discuss-gnuradio] Issues with USRP2 firmware

2. The Xilinx tools in version 11.1 are without patches not able to generate the bitstream, even make proj failed. The build also fails because it needs more RAM than available with a self-made project. With the latest service pack (sp 5) the software is able to produce a .bin file, but not even

Re: [Discuss-gnuradio] UDP source block in GRC

Johnathan Corgan wrote: On Fri, Apr 9, 2010 at 19:23, Marcus D. Leech wrote: Any cluage? Yes. I'll wait to see if Eric responds, as this is his area, but in short, the error is intentional. Johnathan Judging by the code in gr_block_executor.cc lines 291- 321, I think that the sour

Re: [Discuss-gnuradio] help req: editing c files

sanam singh wrote: Hi, I have installed gnuradio from git. I wanted to view and modify .cc files. I placed the modified c files in following directory : /home/sanam/gnu/gnuradio-3.2.2/gnuradio-core/src/lib/general But the issue is when I have tracked gnuradio and I have found out that it does

[Discuss-gnuradio] Merging the vrt- branch.

Hi list, I have previously merged the vrt- branch into the gnuradio- tree and successfully compiled and used it. However... I'm in the middle of creating a script that sets up gnuradio and other programs I need from a fresh installation, and I ran into some troubles while merging different b

Re: [Discuss-gnuradio] editing .cc files??

Omer Ihsan wrote: > Hi, > i am using the ubuntu 9.04 and installed the gnuradio at the build > guide through the binary package instructions for ubuntu at: > > http://gnuradio.org/redmine/wiki/gnuradio/DebianPackages > > i placed a problem here a couple of days ago and the solution > suggested that

Re: [Discuss-gnuradio] gr_unpack_k_bits_bb, its inverse, and higher order constellations

Mattias Kjellsson wrote: > Tom Rondeau wrote: > >> On Thu, Mar 4, 2010 at 2:13 PM, Mattias Kjellsson wrote: >> >> >>> Tom Rondeau wrote: >>> >>> >>>> On Thu, Mar 4, 2010 at 11:38 AM, Mattias Kjellsson

Re: [Discuss-gnuradio] gr_unpack_k_bits_bb, its inverse, and higher order constellations

Tom Rondeau wrote: > On Thu, Mar 4, 2010 at 10:28 AM, Mattias Kjellsson wrote: > >> Eric Blossom wrote: >> >>> I assume that you mean 1 byte per symbol. >>> I suggest that you create *_ci and *_ii versions that handle 32-bits. >>> >>

Re: [Discuss-gnuradio] gr_unpack_k_bits_bb, its inverse, and higher order constellations

Eric Blossom wrote: > I assume that you mean 1 byte per symbol. > I suggest that you create *_ci and *_ii versions that handle 32-bits. > > Eric You are correct, one byte per symbol. Or one symbol per byte, whichever way one wants to look at it. To clarify what the custom block does is that it take

Re: [Discuss-gnuradio] BPSK to QPSK

>>> Hum... I'm glad to hear that, although I thought that the pi- phase >>> ambiguity of Costas- loops made them unsuitable for QPSK- >>> constellations... But I guess there is something I'm missing in the code >>> then? >>> >> You aren't missing anything, you just need to account for the p

Re: [Discuss-gnuradio] Problem using GRC when executing the grc examples

> You need to access .bashrc with super user rights. > Shouldn't ~/.bashrc be a user- override of the global /etc/bashrc (in ubuntu /etc/bash.bashrc) ? For instance if I want to change the promt to something like "[hh.mm.ss]:usern...@host >$" instead of the default one, I'd put those changes in m

Re: [Discuss-gnuradio] BPSK to QPSK

Tom Rondeau wrote: > On 3/3/2010 7:12 AM, Mattias Kjellsson wrote: > >> amarnath alapati wrote: >> >> >>> hi everyone, >>> >>> I am using the programs of DIGITAL-BERT folder to see the bit >>> error rate pattern v

Re: [Discuss-gnuradio] Problem using GRC when executing the grc examples

Makmur Hidayat wrote: > > > 2010/3/3 Mattias Kjellsson m...@kth.se <mailto:m...@kth.se> > > > $chmod +w .bashrc > would make the above file writable. But ".bashrc" shouldn't really be > r/o, should it? This file should be readable

Re: [Discuss-gnuradio] Problem using GRC when executing the grc examples

Makmur Hidayat wrote: > Then I try to add the following to .bashrc > > export BOOST_PREFIX=/opt/boost_1_37_0 > export LD_LIBRARY_PATH=$BOOST_PREFIX/lib > > But I can not do that because .bashrc is read only. > > Therefore how to solve the problem? $chmod +w .bashrc would make the above file wri

Re: [Discuss-gnuradio] BPSK to QPSK

amarnath alapati wrote: > hi everyone, > >I am using the programs of DIGITAL-BERT folder to see the bit > error rate pattern versus the SNR. The given programs are for BPSK > scheme. I tried to change it for QPSK Scheme. But seems that I did not > do it right. I am giving the modified code

Re: [Discuss-gnuradio] The sinusiodal waveform is drifting from input to output.

srinivas naga vutukuri wrote: > Hi, > > I am transmitting the sinusoidal wave form (IQ samples), in the > following methods, and found that when i stem plot in the MATLAB both > the input wave form data on one USRP2 and the received data on another > USRP2, initially the waveform is exactly fitt

[Discuss-gnuradio] gr_unpack_k_bits_bb, its inverse, and higher order constellations

Hi list, I have been trying to send and receive higher order constellations than bpsk (qpsk, qam16, ...). The way I'm currently implementing this (in c++) is that I have a custom "pack_k_bits_bb(int bits_per_symbol)"- block and then feed the result into a "gr_chunks_to_symbols_bc"- block, and then

[Discuss-gnuradio] BER in bert- example

Hi list, There is a function called 'ber' in receive_path.py in the python bert example. def ber(self): return (1.0-self._ber.density())/3.0 From where does the 3 originate? Some lines above, there is this comment: # Descramble BERT sequence. A channel error will create 3 incorrect bi

Re: [Discuss-gnuradio] permission to access /usr/local

> Hi all, > > > I use "sudo make install" to setup the gnuradio in ubuntu9.10. The > problem is that I have to use "sudo" every time to run an > application(./benchmark_tx.py). Without running as a super user, I > will receive the error msg like could not load the firmware to FPGA > through USB, p

Re: [Discuss-gnuradio] What time is it?

>> Glad you are trying out the branch. A few notes here: >> >> 1) There is a bug where after power-up, everytime (but the first) you >> restart streaming and get samples there is junk data, and it will read >> "bad vrt header". Its harmless, but should be fixed >> When you mention it, I do

Re: [Discuss-gnuradio] Help: about ./benchmark_rx.py

> > Sorry, but your question is not very clear. It's a wireless modem, which > > means it's subject to all sorts of issues that are dependent on your > > setup and parameters. > > > > The best thing to do is to start simple and use usrp_fft.py to see if > > you can observe any signal at the receiv

[Discuss-gnuradio] What time is it?

e. However would I be very happy if someone could straighten my questions out. Best regards Mattias Kjellsson ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] glue blocks using C++ instead of Python

ional build system. That's planned soon." Another place to look is http://gnuradio.org/doc/doxygen/index.html Thats where I looked while doing the rewrite. Cheers, and happy hacking =;OP //Mattias Kjellsson ___ Discuss-gnuradio maili

Re: [Discuss-gnuradio] Bitrate doubt

amarnath alapati wrote: hi folks, I am using BENCHMARK_TX.PY, BENCHMARK_RX.PY to test the transmission and reception of signals. I have doubts regarding the outpu that is appearing on the screen. >>> gr_fir_fff: using SSE socket(PF_PACKET, SOCK_RAW, htons(0xBEEF)): Operation not perm

Re: [Discuss-gnuradio] how to load my own .rbf bitstream?

Yan Nie wrote: Hello, I've created my own .rbf file. I see the USRP loads the FPGA bitstream from /usr/rev{2,4}/*.rbf, but it doesn't allow me to copy my .rbf file into this directory. I assume you tried the cp as root? How can I load my FPGA bitstream? A quick look at http://gnuradio.org/d

Re: [Discuss-gnuradio] Browse repositories

Per Zetterberg wrote: Hi, Before git I could browse some resipositories from www.gnuradio.org/svn/ (or something like that) where I could find branches, hardware designs etc. How can I find this information now ? Branches and code: http://vps.gnuradio.org/cgit Hardware designs, etc: https

Re: [Discuss-gnuradio] USRP v2 TX Bandwidth

I haven't looked at the usrp2- code for a while, but I think there might have been something like the usrp- equivalent of "oU"/"uU"- shell printing. But that was a while back and it might have changed. If you have a look in the meta- data there is a field called overrun. But as someone pointed out

Re: [Discuss-gnuradio] Irregular sampling of input stream

> I don't want to reconfigure the graph at run time, but I want to minimize > the use of CPU on my parallel path. Essentially, this extra path is 'raw' > USRP samples which are really only required when packets are successfully > received. > > > Otherwise, the main path is a classic digital rad

[Discuss-gnuradio] Regarding carrier- sensing in digital rx example

lation bit- sequence and a correct header, witch makes the frame_sink_1 put it in its message_queue, that there is no need to check the probe status. In that case, what is the probe doing there? Best regards, //Mattias Kjellsson ___ Discuss-gnu

Re: R: Re: [Discuss-gnuradio] Ubuntu installation problems.

What version of gcc are you running? If you in fact are running gcc-4.3, you might what to try "configure --help", and from there figure out what extra flag you need to pass to configure for it to locate your boost- installation. Hope this helps //Mattias >> I get this error >> >> "cannot f

Re: [Discuss-gnuradio] C++ source code location

David Knox wrote: > I built gnuradio using Synaptic and it seems to be operational. I can change > python and also change and compile C++ code for some UCLA Zigbee packet > processing code just fine too. Where should the C++ source code for the > gnuradio routines themselves (e.g. gr blah blah) b

Re: [Discuss-gnuradio] gr_unpacked_to_packed_bb, modulation

I think you are making wrong use of the unpacked_to_packed block: I think so to. I was creating the file in Matlab, writing zeros and ones as chars to a file, used that file as input to the flow- graph... So to get my original code to work, I had to write "27" in the data file (27 = 0001

Re: [Discuss-gnuradio] gr_unpacked_to_packed_bb, modulation

Please disregard my last mail on the same topic. I figured it out. It turned out there was no problem once I figured a bit about what packed and unpacked bytes actually mean. This shows how important having a cup of coffee now and then is... cheers, //Mattias ___

Re: [Discuss-gnuradio] gr_unpacked_to_packed_bb, modulation

Mattias Kjellsson wrote: > Hi again, > > Thanks for the reply, that confirmed my suspicion of me being wrong > about D=2. > > But then I am wondering how the gr_unpacked_to_packed_bb- block is working? > > When I setup a unpacked_to_packed_bb(2,GR_MSB_FIRST) (I guess GR_

Re: [Discuss-gnuradio] gr_unpacked_to_packed_bb, modulation

Hi again, Thanks for the reply, that confirmed my suspicion of me being wrong about D=2. But then I am wondering how the gr_unpacked_to_packed_bb- block is working? When I setup a unpacked_to_packed_bb(2,GR_MSB_FIRST) (I guess GR_MSB_FIRST on a regular intel x86, right?) and connect it to a gr_c

[Discuss-gnuradio] gr_unpacked_to_packed_bb, modulation

Hi list, I'm currently working on increasing my modulation from BPSK to (at first) QPSK using the c++ api. I have come across something I can't really figure out by myself. According to the api, gr_make_unpacked_to_packed_bb followed by gr_chunks_to_symbols_bc should take care of mapping bits to

[Discuss-gnuradio] gr_clock_recovery_mm_cc::slicer_45deg...

can't really see where it is used. The only other place I could find it in was in gr_lms_dfe_cc, which had it's own implementation of the same function... Best regards //Mattias Kjellsson ___ Discuss-gnuradio mailing list Discuss-gnurad

Re: [Discuss-gnuradio] Problems transmitting a simple IF sample upconverted on a USRP2

Kris Lists wrote: > > > I then build a basic flow in python from the sample file to a USRP2 > sink setting the center frequency CF to 1.57542G, and a interpolation > of 20 to convert the 5Msamp/sec to 100Msamp/sec. The waveform > transmits for the expected 60 sec. > Not sure, but as far as I can r

Re: [Discuss-gnuradio] about build GNU Radio

Li Mei-Wen wrote: > > Hi: > > I try to test the ./benchmark_tx.py -f 900M and ./benchmark_rx.py -f 900M > I got Warning, What can I do? > The warning, do it affect the usrp operation? > > Thank in advance. > > em...@ncku-34be181a97 > /usr/src/gnuradio-3.2.2/gnuradio-e

Re: [Discuss-gnuradio] start_rx_streaming_at patch

And what is VRT code? I think that VRT is also referred to as VITA. I think http://www.pentek.com/whatsnew/ViewRelease.cfm?Index=107 may be a start. //Mattias ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailm

Re: [Discuss-gnuradio] about USRP2_MIN_RX_SAMPLES

Ulrika Uppman wrote: Hi all! I ran into the constant USRP2_MIN_RX_SAMPLES = 371 defined in usrp2_base.h, but I don't get what it is used for (it comes with the comment "BIG ASS FIXME: get from lower layer MTU calculation"). Does anyone know anything about this constant and what it affects? ...

Re: [Discuss-gnuradio] Problems with GNU radio in Cygwin

... ./configure make make check make install. Did you run ldconfig (or similar) after make install? ... ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] usrp usb buffer minimum requirement

adib_sairi wrote: Dear All, As i being experimenting with USRP and GNU Radio, i notice that some of the last packet of my data that i receive is keep inside the USB buffer. this data will be flush out to my PC only if i transmit (receive) new data. i believe that this is due to the minimum byte d

Re: [Discuss-gnuradio] c++ example

Johnathan Corgan wrote: >> displaying output at the rx- side, but that >> shouldn't be a problem, as long as the switch to boost- threads hasn't >> been done? >> > The only functionality outside of gr I have used is a pthread for > > Well, we're migrating things off omnithreads to Boost threa

Re: [Discuss-gnuradio] c++ example

Eric Blossom wrote: On Wed, Aug 12, 2009 at 03:41:19PM +0200, Mattias Kjellsson wrote: Hi list, Is there an interest in having more c++ examples included in gnuradio? Although the dial- tone example is very illustrative, it might be handy to have at least a few more? Best regards //Mattias

[Discuss-gnuradio] c++ example

Hi list, Is there an interest in having more c++ examples included in gnuradio? Although the dial- tone example is very illustrative, it might be handy to have at least a few more? Best regards //Mattias ___ Discuss-gnuradio mailing list Discuss-gnura

Re: [Discuss-gnuradio] How to simultaneously tx/rx on usrp with OFDM?

> There are several problems I am facing now(sorry, I am not a good programmer, > maybe they are silly questions): > 1. I am trying to use different threads to receive packets and transmit > packets. Although I used "global killed" and "sys.exit(1)" to make sure > threads exit when Ctrl-C press

Re: [Discuss-gnuradio] newbie's question. performance-critical or non-performance-critical??

Hi, While it is still possible (and from my understanding, most people use python) to use python to interface the underlying c++ blocks, there is also the possibility to just use c++ for connecting the flowgraph, see gnuradio-examples/c++/dial_tome for an example. Hope this helps. //Mattias

Re: [Discuss-gnuradio] What happens when delete_head() is executed?

udadidd wrote: > 2) Now i try to read this file back and unmake packets. But the code doesnt > do any thing at msg.delete_head(). > delete_head() is a blocking function, which blocks until there is a message in the queue. You might want to try using the non- blocking version instead? You may co

Re: [Discuss-gnuradio] OFDM Mod C++ source code

try something like: $ find [gnuradio-build-tree-path] -name gr_ofdm* find, grep and others are friendly, you just have to talk to them... So are the man- pages =;oP //Mattias > > how can i get the C++ source code of the blocks in GRC > i mainly need that of the OFDM mod and demod i tried browsing

Re: [Discuss-gnuradio] Re: SV: Re: USRP2 transmitter spectrum measurements

Jamin Chan wrote: Mattias Kjellsson wrote: Hi, I think that a similar question was raised a while back, and that the ticket for fixing it is still open. http://www.mail-archive.com/discuss-gnuradio@gnu.org/msg18067.html BR //Mattias So there is a temporary workaround? Im not sure if i

Re: SV: [Discuss-gnuradio] Re: USRP2 transmitter spectrum measurements

Hi, I think that a similar question was raised a while back, and that the ticket for fixing it is still open. http://www.mail-archive.com/discuss-gnuradio@gnu.org/msg18067.html BR //Mattias Ulrika Uppman wrote: Hi! We have encountered the same phenomena. The spikes at the carrier frequency

Re: [Discuss-gnuradio] Weired GNURADIO Performance

Firas Abbas wrote: Hi, On Sat, 5/2/09, Andrew Lutomirski wrote: I can speculate: some versions of Ubuntu (i.e. all the ones I've actually looked at) seem to build fftw *without* SSE/SSE2. --Andy Do FFTW have a function we can use to read if it is using SSE/SSE2?. If exist, we c

Re: [Discuss-gnuradio] error while running fmradio.py

mayur sarode wrote: ... Using TX d'board B: Basic Tx Traceback (most recent call last): File "./fmradio1.py", line 182, in wfm_tx() File "./fmradio1.py", line 115, in __init__ if not self.set_freq(options.freq): File "./fmradio1.py", line 172, in set_freq r = se

Re: [Discuss-gnuradio] USRP Overrun Problem

Lizhao You wrote: Hi all, I am testing an application, which receives data from usrp. The datarate is 2M, and samples_per_symbol is 2, decimation is 16. I am using a PC, with Ubuntu 8.10, intel pentium 4 cpu 2.40G, and 768M Memory. But the shell displays uOuOuO when running. I know it means

Re: [Discuss-gnuradio] Some Basic USRP questions

1) When I run my scripts I sometimes get "uOuOuO" message. I read in the archives that I need to increase the decimation rate but I have already set it to the maximum limit of 256. What should I do? Also, why do I not get the message all the time? Hi, A problem I had a while ago was tha

Re: [Discuss-gnuradio] Question about latency

Hello everyone, I am trying to implement some relaying schemes in gnuradio which require fast response from the relay. I only know how to use flow graphs at the moment so I made my code with flowgraphs and the delay from receiving a packet until I retransmit it is about 10ms. I'm using USRP1

[Discuss-gnuradio] Shutting down a usrp_sink_s

Hi list, I have a question regarding the shutdown procedures of c++- flow- graphs (using trunk r10527, ubuntu 8.10). As far as I have understood a flow- graph will continue until one of the blocks in it either returns -1, or ctrl+c is pressed. However, if I connect a gr_file_source(sizeof(sh

Re: [Discuss-gnuradio] extract timestamp data

that was a month or two ago, maybe someone of the core- developers can answer that more precisely. Best Regards //Mattias Kjellsson ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] flexrf_base.cc

Hi list, I was browsing the c++ code in gr-usrp today, and found a strange thing in "flexrf_base.cc", line 337 to 349 in svn10524 (included below). == flexrf_base_tx::gain_min() { return usrp()->pga_max(); } float flexrf_base_tx::gain_max() { return usrp()->pga_max(); }

Re: [Discuss-gnuradio] test_usrp_standard_tx, tx_underrun

Hi again, Seems like the answer was coming in as I wrote the answer... My cpu- scaling... BR //Mattias Kjellsson Mattias Kjellsson wrote: Hi list, I have recently begun to see a lot of tx_underrun in my applications. At first I thought it was due to me not setting realtime- scheduling

[Discuss-gnuradio] test_usrp_standard_tx, tx_underrun

t; should it not? It has done so before at least... I guess my question is, -"Is there anyone who has any clue why I see these underruns, and/or what I can try to make them go away?" Best regards //Mattias Kjellsson ___ Discuss-gnuradio

Re: [Discuss-gnuradio] Problem iinstalling fftw-3.2 on Centos 5.2 64 bits

anne kwong wrote: ... [r...@localhost fftw-3.2]# ./configure --enable-single --enable-shared --enable-sse Hi, try to not use the super- user account when configuring, only when installing. I don't know if it will help, but sometimes the environment for the root user is a bit different than

Re: [Discuss-gnuradio] Interfacing to USRP2 with C++

te useful when exploring the gnuradio- c++ stuff was a nifty tool called "cscope", with which you easily find definitions of things you may want to have a closer look at. Hope this helps //Mattias Kjellsson ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Re: checking for boost >= 1.35... no

nd" or "slocate" are good candidates for finding that out. Hopes this gets you going. //Mattias Kjellsson ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Re: GRC and unit of signal amplitude in USRP

Bruhtesfa Ebrahim wrote: Mattias Kjellsson wrote: Bruhtesfa Ebrahim wrote: Hey all, I have just 2 questions, actually they are not related (are independent questions). 1. I want to install GRC(gnu radio companion), and i need to install pygtk and cheetah as prerequisite. I

Re: [Discuss-gnuradio] GRC and unit of signal amplitude in USRP

and make files in both of them.So, how can i install them without these files? I think they are available through apt-get, but if you whant to install from source, you should investigate setup.py. Try $python setup.py --help Cheers! //Mattias Kjellsson

[Discuss-gnuradio] finding a usrp... Kind of working.

s.d$ dmesg | tail ... [ 951.886074] usb 7-3: new high speed USB device using ehci_hcd and address 9 [ 951.912878] usb 7-3: configuration #1 chosen from 1 choice There must be something I have done incorrect, but what might that be? I realize this may be a bit off- topic, but seeing how you all go

Re: [Discuss-gnuradio] Can't transmit from USRP2, version2.

ted after I got back is find_usrps. Althoug, I need to run it twice to make it find my usrp2... I think I'll never eat lunch again ;) I'm out of ideas of how to solve this. Suggestions of things to try and/or check for, no matter how simple would be appreci

Re: [Discuss-gnuradio] Can't transmit from USRP2

after I got back is find_usrps. I think I'll never eat lunch again ;) I'm out of ideas of how to solve this. Suggestions of things to try and/or check for, no matter how simple would be appreciated. BR //Mattias Kjellsson ___ Discuss

[Discuss-gnuradio] firmware update of usrp2, wiki- update?

wiki- page... Instead of having just a warning, there could be a warning and a solution =;o]. But since I Cheers! Mattias Kjellsson ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Regarding 371 samples/frame in usrp2

Eric Blossom wrote: On Wed, Nov 05, 2008 at 07:30:01PM +0100, Mattias Kjellsson wrote: Eric Blossom wrote: There are a couple of headers. See usrp2_eth_packet.h So I have. Regarding the channel and timestamp fields in "struct u2_fixed_hdr_t", channel is goin

Re: [Discuss-gnuradio] Regarding 371 samples/frame in usrp2

Eric Blossom wrote: On Wed, Nov 05, 2008 at 06:15:03PM +0100, Mattias Kjellsson wrote: I have been playing with ioctl's today and while browsing the USRP2- code i found that max length of a packet is defined to 371 which results in 1484 bytes of "data", and 16 bytes left, l

[Discuss-gnuradio] Regarding 371 samples/frame in usrp2

U set by the nic and calculate this number, instead of having it #defined? But then again, it would be a whole lot of re- writing, since U2_MAX_SAMPLES is #defined... Or have I missed some fundamental here? BR Mattias Kjellsson ___ Discuss-gnuradio

Re: [Discuss-gnuradio] USRP2 latency calculations

schemes involving a special OP_CODE (usrp2_eth_packet.h)... Cheers //Mattias Kjellsson Firas Abbas wrote: Hi, If USRP2 can respond to PING and reply back, then one should be able to measure the delay. Regards, Firas ___ Discuss-gnuradio mailing

[Discuss-gnuradio] Usrp2 bg_loop() magic?

value (I noted that there is a "fixme, magic timeout" there, but still)? Can I change this value to any value of my own choice, or are there limitations that I'm not seeing here? BR Mattias Kjellsson ___ Discuss-gnuradio mailing list D

Re: [Discuss-gnuradio] Re: Help! ImportError: cannot import name usrp

Hi, This may be one of the more stupid things I've said here (or any were else), but shouldn't it be "usrp_fft.py", and not "usrp_fft.oy"? It seems like an easy typo to make, and when i do: "$slocate usrp_fft.oy" nothing shows up, but when i do: "$slocate usrp_fft.py" a whole bunch of files sc

Re: [Discuss-gnuradio] Signal processing and GPU

lanning on starting on it this week, would appreciate inputs I think it sounds useful. I know there are password recovery software using the GPU for calculations. If you get further than me, please don't keep it to yourself ;) BR //Mattias Kjellsson

Re: [Discuss-gnuradio] ImportError: libgnuradio-core.so.0

, try specifying the path to ldconfig as well. In my chase that is: $ which ldconfig /sbin/ldconfig $/sbin/ldconfig Otherwise it may be sudo that is not recognized, then try: $su root PASSWORD FOR ROOT-USER $which ldconfig /sbin/ldconfig $/sbin/ldconfig Hope this helps. BR Mattias

Re: [Discuss-gnuradio] USRP connected during gnuradio installation

Hi, When I installed gnuradio, I didn't have a usrp, but I followed the instructions in the wiki, and when I plugged it in it worked... I guess the short answer is: no. =) Hope it works out for you! BR Mattias Kjellsson Joreen Tan wrote: > Hi, > > Would like to check, if the USR

[Discuss-gnuradio] svn 9482, usrp2 trunk, host/apps compile

Hi list, I checked out usrp2- trunk svn9482 today, and got some errors when I tried to build it. the following steps was taken: Installed boost-1.36, from source with configure --with-libraries=all option made a symbolic link from /usr/local/include/boost-1.36 to /usr/local/include/boost D

Re: [Discuss-gnuradio] two byte bool, and 30 channels?

Eric Blossom wrote: On Thu, Aug 14, 2008 at 11:57:27PM -0100, Mattias Kjellsson wrote: Johnathan Corgan wrote: On Thu, Aug 14, 2008 at 7:52 AM, Mattias Kjellsson <[EMAIL PROTECTED]> wrote: Nice to know, I almost went insane over a couple of htons() earlier

Re: [Discuss-gnuradio] two byte bool, and 30 channels?

Johnathan Corgan wrote: On Thu, Aug 14, 2008 at 7:52 AM, Mattias Kjellsson <[EMAIL PROTECTED]> wrote: 1. In op_config_rx_reply_v2_t structure (and op_config_tx_reply_v2_t), defined in usrp2_eth_packet.h, the member "ok" is a uint16_t... Why is that? Does it have something

Re: [Discuss-gnuradio] Compile error with gnuradio trunk for armv7-a

Philip Balister wrote: On Thu, Aug 14, 2008 at 8:24 AM, Mattias Kjellsson <[EMAIL PROTECTED]> wrote: Philip Balister wrote: On Thu, Aug 14, 2008 at 6:24 AM, Mattias Kjellsson <[EMAIL PROTECTED]> wrote: Philip Balister wrote: I used to be able to buil

[Discuss-gnuradio] two byte bool, and 30 channels?

case? BR Mattias Kjellsson ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Compile error with gnuradio trunk for armv7-a

uot;This python version requires swig to be run with the '-nomodernargs' option" I found these lines in the end of the log, and my sugestion would be to try to rebuild swig with the flags indicated above. On the other hand there are some

[Discuss-gnuradio] usrp2 lib compile

t32_t*)::command' has no member named 'op' usrp2_basic.cc:743: error: 'op_read_time_t' was not declared in this scope usrp2_basic.cc:744: error: 'struct usrp2_basic::read_time(const u2_mac_addr_t&, uint32_t*)::command' has no member named 'op' The

[Discuss-gnuradio] Question regarding usrp2_basic.cc

knows (for instance -"you always have to pad the packets with one byte" or similar), or something completely different than the above suggestions? Cheers //Mattias Kjellsson ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http:

[Discuss-gnuradio] addition to wiki- page?

defined in the same header- , and implemented in the same source- file wasn't. Kind of strange is it not? Anyhow, this might be a good alternative to put in the wiki, to avoid future questions about the same issue. Comments, and or clarifications

[Discuss-gnuradio] mblocks and pmt_t

out using python (which I try to stay as far away from as possible)... Any comments, suggestions, clarifications would be appreciated. Cheers Mattias Kjellsson ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio