Re: [Discuss-gnuradio] gr-filter tests
On Fri, Jun 22, 2012 at 7:21 AM, Martin Braun (CEL) wrote: > On Fri, Jun 22, 2012 at 11:17:50AM +0200, Martin Braun (CEL) wrote: >> I'll try this on a different machine later. > > On a 64-Bit Ubuntu 12.04 with an i3 (using Volk machine avx_64), > test_gr_filter fails here (I ran volk_profile before). > > XML attached. > > I should mention that I pulled the source from the first test from > 'next', on the 64-bit machine, it was from 'master'. > > MB Martin, Thanks for the report. I think that I was able to track down all of these issues and resolve them. I've pushed the fixes to master/next. When you get a chance, please rerun the tests and let me know if anything else fails. Thanks! Tom ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Block key "rtl2832_source" not found in Platform
Hi Giulio - It looks like GNU Radio is trying to mix and match between Python
2.6 and 2.7. This, in general, is not advisable; try to coerce GNU Radio into
using one or the other. Fix that first, then see if there's still an issue.
If so, maybe someone with knowledge of the "rtl2832_source" can help. Good
luck! - MLD
On Jun 22, 2012, at 1:10 PM, Giulio wrote:
> MacBook-di-Giulio:~ Giulio$ export
> PYTHONPATH=$PYTHONPATH:/opt/local/lib/python2.6/site-packages:/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/:/usr/local/lib/python2.7/site-packages/
>
> MacBook-di-Giulio:~ Giulio$ gnuradio-companion
>
> /opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/numpy/random/__init__.py:87:
> RuntimeWarning: compiletime version 2.6 of module 'mtrand' does not match
> runtime version 2.7
> from mtrand import *
> <<< Welcome to GNU Radio Companion 3.3.0 >>>
>
> Loading: "/Users/Giulio/rtl2832-fm.grc"
Error: Block key "rtl2832_source" not found in Platform - grc(GNU Radio
Companion)
> Traceback (most recent call last):
> File "/opt/local/bin/gnuradio-companion", line 51, in
>try: gtk.window_set_default_icon(gtk.IconTheme().load_icon('gnuradio-grc',
> 256, 0))
> GError: Icona «gnuradio-grc» non presente nel tema
Error: Connection between rtl2832_source_0(0) and
gr_freq_xlating_fir_filter_xxx_0(0) could not be made.
___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] question about gr_message
Hi, I have a question about gr_message. Does gr_message work with anything but strings? I see where a call to gr_make_message_from_string copies the string into the message but I don't see anything done with arg1 or arg2. The same for just creating a message and passing in arg1 and arg2. I don't see them ever put into the message. Am I not understanding something or are strings the only message data that works? stephen ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Gnuradio Screencast for Absolute Beginners
Hi Community, I have just uploaded some more videos on my channel. They are about basic filtering and some beginners concept about sampling and re-sampling. Here are the links : GNURADIO: GNURADIO-COMPANION part-5 (Basic filtering) http://www.youtube.com/watch?v=Yc3K3bUxPW8&feature=plcp GNURADIO: GNURADIO-COMPANION part-6-1 (Significance of sampling rate in simulations) http://www.youtube.com/watch?v=Ka540X5NjwE&feature=plcp GNURADIO: GNURADIO-COMPANION part-6-2 (Significance of sampling rate in simulations contd.) http://www.youtube.com/watch?v=7dvw-B_CGEg&feature=plcp I am sorry for the disturbing audio quality. My sound card is picking some noise even after I am opting for mute. Please mute the audio while watching the screencasts :) More screencasts will be up very soon. :working: sumitstop wrote: > > Hi Community, > I have just uploaded a lengthy video as a supplement to my earlier > screencast on gnuradio-companion. I recorded it last evening but somehow > was unable to find that where it was saved in my system. Now I am using a > good screen recorder which is giving me option to pause in between the > recordings :) Hence I was able to record for more than 50 mins :P > > Here is the link > > http://www.youtube.com/watch?v=UaST-ajS4EY&feature=plcp > > More screencasts will be up very soon. > > :working: > > > > sumitstop wrote: >> >> >> Hi Community , some more video are up !! >> >> I have shown how to start working with gnuradio-companion. There are 4 >> screen casts. Very introductory for the new comers :) >> >> connecting the blocks, data types, putting multiple windows in tabs, etc >> I have shown. Suggestions and feedbacks are very welcome. >> >> Please suggest me some good(free) screencast tools. Right now I am using >> gtk-recordmydesktop which gives me .ogv file and youtube creates much >> pain with .ogv format. >> >> Also this screen cast is very unorganized. from next screen casts I will >> try to organize them point wise :) >> >> Here are the links : >> >> http://www.youtube.com/watch?v=pWHlK-Kcn9M&feature=plcp >> >> http://www.youtube.com/watch?v=hkfbousBchE&feature=plcp >> >> http://www.youtube.com/watch?v=bp9b0ozsboI&feature=plcp >> >> http://www.youtube.com/watch?v=j9A-5MzZyt0&feature=plcp >> >> More videos will be up soon :working: >> >> >> >> >> >> sumitstop wrote: >>> >>> Hi Community , some more video are up >>> >>> 1.In system transmission and reception using digital benchmark and ofdm >>> benchmark files. >>> >>> 2. Complete instructions on how to install UHD(latest ver), gnuradio >>> (latest ver) and gnuradio-companion from source code(for those ppl who >>> enjoy building by themselves) :-)) >>> >>> ** instructions on setting python path as well as library path also >>> shown. >>> ~~ >>> I also wanted to make some videos on getting started with hardware on >>> gnuradio but unfortunately my shipment from ettus research worth $9K got >>> stuck. its showing "Clearance delay - Import " :,( Anyways I will use >>> my existing usrp2/1 to make the videos in the coming days >>> ~~ >>> >>> More videos will be up very soon :working: >>> >>> sumitstop wrote: Yes Tom I will be glad to contribute in some or other way for the gnuradio :-) Tom Rondeau-2 wrote: > > On Mon, Apr 9, 2012 at 4:42 PM, sumitstop > wrote: >> >> Hi Community, >> >> Just uploaded 11 more screen casts in GNURADIO for absolute >> beginners. >> They are mostly related to using benchmark files of digital >> transmission and >> ofdm transmission. >> Some playing with the spectrum sensing code is also there. I have >> increased >> the font size as well as bright back ground for better visibility. >> >> http://www.youtube.com/user/2011HPS?feature=watch >> >> A lot more will be coming. >> >> Cheers :working: > > Thanks for putting these up and sharing with everyone! > > Tom > > > >> >> heckpiet wrote: >>> >>> thx mate !! >>> >>> Cheers >>> >>> Piet >>> >>> Am 8. April 2012 01:07 schrieb sumitstop >>> : Hi Community, I have uploaded screencast of some very basic things for the beginners in gnuradio like installing gnuradio, finding common examples of usrp, uhd, utilities etc. Also getting information about usrp's / daughterboards, antennas, burning SD card etc. Here is the link http://www.youtube.com/user/2011HPS?feature=watch http://www.youtube.com/user/2011HPS?feature=watch Although these things are given in enough detail on gnuradio webpage but I think watching on screen
Re: [Discuss-gnuradio] question about gr_message
On 06/23/2012 07:50 PM, Stephen wrote: > > Hi, > > I have a question about gr_message. Does gr_message work with anything > but strings? I see where a call to gr_make_message_from_string copies > the string into the message but I don't see anything done with arg1 or > arg2. The same for just creating a message and passing in arg1 and arg2. > I don't see them ever put into the message. Am I not understanding > something or are strings the only message data that works? > > stephen > gr_message is basically just a binary blob (aka a string) and like 2 or 3 random integers. The scope plotter makes use of arg1 and arg2 for example, so its really up to the implementation to interpret the blob and the args. I suspect the args were added when the author got sick of parsing integers out of the blob. :-) If you want something more structured than a simple blob, gnuradio has basically replaced the need for gr_message with the PMT library and the the gr_msg_queue with the gruel::msg_queue. Unfortunately, all of the existing code (basically wx gui and those horrid benchmark examples) does not use the new stuff. See relevant headers here: http://gnuradio.org/cgit/gnuradio.git/tree/gruel/src/include/gruel/pmt.h http://gnuradio.org/cgit/gnuradio.git/tree/gruel/src/include/gruel/msg_queue.h And if you want something even *more* structured, here is a formal message passing API implemented at the gnuradio block level with PMTs: https://github.com/guruofquality/grextras/wiki#wiki-feature-message-passing -josh > ___ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
