May 2024 GNU Radio Project Update

Hi GR Community! Sorry for the long delay on a project update call on YouTube - but we just posted our latest set of news and updates. https://www.youtube.com/watch?v=GGKL-dGAfcw Highlights include: *EVENTS:* - EU GR Days, Darmstadt, Germany, August 27-31 (*CfP Deadline June 1*) - GRCon24,

Re: Simulation halts using repeat block in GRC with a picture and the grc file.

This is because the Time Sink is assuming the two streams are coming in at the same rate, but the repeat block increases the number of samples by a factor of 4. So the input buffer of the first input will be starved and the simulation will hang. You can fix this by using 2 separate

Re: Python Bindings Out of Sync: Which files are out of sync?

> > Is there an “ignore this error” flag in “cmake”? > > Thanks > > Glen > > On Jan 4, 2024, at 4:52 PM, Josh Morman wrote: > > > > Hi Glen, > > > > The file that is out of sync is > > vsum_python.cc > > > > This can be update

Re: Python Bindings Out of Sync: Which files are out of sync?

Hi Glen, The file that is out of sync is vsum_python.cc This can be updated using gr_modtool bind vsum This ensures that changes in vsum.h are reflected in the python bindings. Josh On Thu, Jan 4, 2024 at 2:05 PM Glen Langston wrote: > Hello > > I’m running gnuradio 3.9.x and am writing a

Survey regarding Open Source Licensing of GR 4.0

A quick follow up on one topic that was presented in the Q4 Project Update video: Tl;dr - the core of the code being merged as “GR 4.0” is LGPL. We want your opinion on how this will impact you and if further action is needed for licensing considerations. Please submit your feedback here:

GRCon24 Announcement - Sept 16-20, Knoxville [Save the Date!]

Greetings GNU Radio Community! We are excited to announce that GNU Radio Conference 2024 (GRCon24) will be run as an in-person event September 16*-20 at the Knoxville Convention Center in downtown Knoxville, TN . GRCon24 will celebrate and showcase the

GNU Radio Q4 2023 Project Update

Hello GNU Radio Community - Lots of project updates posted the other day in our video update on YouTube: https://www.youtube.com/watch?v=gyGcB-xODxQ Have a look/listen when you get a chance - some exciting announcements in there as well. 0:00

Re: GRCon23 Registration Reminder: Aug 18 begins late registration

One last reminder that prices go up AFTER TOMORROW. Please register today if you have not already done so Look forward to seeing you all there! Josh On Thu, Aug 10, 2023 at 9:39 AM Josh Morman wrote: > Hello GNU Radio Community, > > Just a reminder if you plan on attending GRCon23

GRCon23 Registration Reminder: Aug 18 begins late registration

Hello GNU Radio Community, Just a reminder if you plan on attending GRCon23 in Tempe, AZ that regular registration prices are only in effect until *Aug. 17* - so go ahead and register if you have not already. Starting Aug 18, prices go up by $100. Registering early also helps us out tremendously

[GRCon'23] - Abstract Submission Deadline TODAY - 23 June!

me know if you have any questions. Looking forward to meeting you all in Tempe in September. Josh On Fri, Jun 9, 2023 at 3:36 PM Josh Morman wrote: > Just a quick update that our Call for Participation Abstract Deadline > submission has been extended to *June 23rd.* > > If you

[GRCon'23] [Deadline Extended] Call for Participation for the GNU Radio Conference 2023

Just a quick update that our Call for Participation Abstract Deadline submission has been extended to *June 23rd.* If you thought you missed it but have a great project or idea for a presentation/workshop/poster/tutorial - go ahead and submit your abstract by *June 23*

Re: [GRCon'23] Call for Participation for the GNU Radio Conference 2023

*Reminder:* The abstract submission date (June 5) for GRCon23 is less than a week away! Please submit your ideas for technical talks, workshops, posters here: https://events.gnuradio.org/event/21/abstracts/ Thanks! Josh On Fri, May 12, 2023 at 5:30 AM Marcus Müller wrote: > Dear Community,

Re: porting OOT to 3.10.5 missing memory.h

Do you have pygccxml and castxml installed on this machine? And if so, are they recent versions (pygccxml >= 2.0) When gr_modtool bind is called, pygccxml compiles the project headers then scrapes the symbol information to generate the python bindings. Not finding memory.h sounds like an

GNU Radio Conference 2023 - Sep 5-9, Tempe AZ

Greetings GNU Radio Community! We are excited to announce that GNU Radio Conference 2023 (GRCon23) will be held as an in-person event September 5-9 at Arizona State University in Tempe, AZ. GRCon23 will celebrate and showcase the substantial and remarkable progress of GNU Radio and its usage in

Re: Is there a way to add break point or watch point in gnuradio

You can hit breakpoints in the C++ code using VS Code: https://wiki.gnuradio.org/index.php?title=UsingVSCode Hitting the python called from a running flowgraph is not as straightforward, but stepping through the flowgraph setup in the top level python file can be done with the Python debugger in

Re: gr_modtool bind makes incorrect file

Hi Jameson, This should be fixed as Ryan mentioned by having pygccxml installed. But for blocks with default interfaces as you described, gr_modtool bind should produce the same output as the default as of this fix: https://github.com/gnuradio/gnuradio/pull/6264 which got integrated after GR

Re: VS Code for QA Tests

Jeff, 1) Is the c++ code built with Debug symbols (CMAKE_BUILD_TYPE=Debug) 2) Have you installed your built files? When running from python, VSCode uses the current PYTHONPATH in the environment and loads the .so files from there, not from the build directory Josh On Mon, Nov 14, 2022 at 8:29

Re: Referring to a block by a specific name

Hi T.K. First you have enable the "Show All Block IDs" in GRC, then you can change the ID of the block to whatever you want it to be. In the snippet, then just refer to the block as self.blockname Hope this helps. Josh On Wed, Sep 14, 2022 at 1:08 PM Temir Karakurum wrote: > Hi, > > I have

GRCon22 Announcements and Reminders

GNU Radio Conference 2022 is just over 1 month away and we have an exciting schedule, outstanding speakers, and engaging activities planned for this year's event. Just a reminder to please register at https://tickets.gnuradio.org - this helps us tremendously in having an accurate count of people

GRCon22 Abstract Submission Deadline Extended - July 17

***The deadline for submitting abstracts for work to be presented at GRCon22 has been extended until July 17. *** GRCon22 is less than three months away! Please consider submitting a short abstract of your proposed talk, paper, or other participation option. Check out our Call for Participation

Re: Regression in GR3.10

I think the way to properly handle GIL from long running calls is to add py::call_guard() to the definition of the method binding .def("delete_head", _queue::delete_head, D(msg_queue, delete_head)) I haven't tried this here, but I've used it on similar python bindings

Re: Regression in GR3.10

Max, The msgq API probably should be deprecated, but it is in fact there in 3.10. I think you are right that it is an issue with the GIL because delete_head it is a long blocking function. Are you able to use delete_head_nowait instead? Thanks, Josh On Wed, Jun 15, 2022 at 10:08 AM ikjtel

newsched (GR4 proposed runtime) v0.3.0 Released

Greetings GNU Radio Community! newsched v0.3.0 has been released here: https://github.com/gnuradio/newsched/releases/tag/v0.3.0 This release involves a lot of cleanup, and enabling features, and a handful of useful blocks. Take a look at the release notes for more details. The goal moving

Re: gr_modtool rm in v3.9

Jeff, I'm guessing the issue is with the tool. Modtool went through some changes 3.8-->3.9 as Swig was removed and the extra step of `modtool bind` was added. Josh On Tue, Mar 22, 2022 at 11:28 AM Jeff S wrote: > I tried using gr_modtool in v3.9.5.0 to add a block, including python and > C++

Re: Problem with adjusting value during runtime in my OOT block

ygccxml is installed On Mon, Mar 14, 2022 at 7:53 AM Nikoloz Glonti wrote: > adding_ff_python.cc looks like that - https://pastebin.com/nmpshmvj > > > On 3/14/22 11:26, Josh Morman wrote: > > Those files look good to me - I'm wondering how the python bindings > > l

Re: Problem with adjusting value during runtime in my OOT block

ions? > > adding_ff_impl.cc looks like https://pastebin.com/JUnxQtYi > > and adding_ff_impl.h looks like https://pastebin.com/MF93s9WD > > Niko > On 3/13/22 21:32, Josh Morman wrote: > > This sounds like it could be an issue with the python bindings > > 1) did you run “gr_mo

Re: Problem with adjusting value during runtime in my OOT block

This sounds like it could be an issue with the python bindings 1) did you run “gr_modtool bind” after adding the callback to your block header 2) is pygccxml installed? Without it the binding using modtool can only do the basic block things Josh On Sun, Mar 13, 2022 at 4:09 PM Nikoloz Glonti

Re: QA Tests: Python vs C++

Jeff, When tests are done in C++, they also must be compiled, which adds to the overall gnuradio compilation time. In-tree the c++ tests are reserved mainly for testing the really low level like buffers. I agree with you that an all c++ target makes debugging easy, but you can launch the python

Re: Selecting a SDR as a sink

David, There are a couple of problems with using the selector in this configuration. 1) If you plan to just disable the sinks in GRC, then you don't need the selector at all. That block is intended to be used to change the configuration during runtime. You can just connect all the sinks to the

GRCon 2022 - Washington DC - Sept. 26 - 30

Greetings GNU Radio Community! We are excited to announce that we are planning for GRCon 2022 to be run as an in-person event September 26-30 at the Capital Hilton in Washington DC. If you know you will be planning to come, you are encouraged to go ahead and

Re: segfault in 3.10.1.1

Hi Steve, Can you please share more information about how GR is installed in your case - OS/distribution? - Installation method (compiled from source, distro packages? Thanks! Josh On Mon, Feb 7, 2022 at 7:58 PM Steven Barbo wrote: > Hello all, hope this day finds you well. > Having issue

Re: Can I change Gnuradio 3.8 to 3.7 ?

By change the version, do you mean uninstall GNU Radio 3.8 and install 3.7, or do you mean make the 3.7 modules work with 3.8 - the latter is not possible because the changes in GR from 3.7 to 3.8 were significant and not API compatible. Josh On Tue, Feb 1, 2022 at 4:47 AM Rachida SAROUI wrote:

Git Default Branch Naming

Hello GR Users and Developers! The master branch has now been renamed to "main" to be more in line with the github defaults and the direction that so many other projects have moved. All active PRs have been retargeted to main, and the master branch still exists for compatibility reasons (but

GNU Radio Release v3.10.0.0

on.u...@jhuapl.edu Jeff Dumps jeffdu...@gmail.com Jeff Long Jeppe Ledet-Pedersen j...@satlab.com jfmadeira jf.made...@campus.fct.unl.pt jmadeira jmade...@pdmfc.com Johannes Demel de...@ant.uni-bremen.de John Sallay jasal...@gmail.com Josh Blum j...@joshknows.com Josh Morman jmor...@gnuradio.org kare

Release Candidate v3.10.0.0-rc4

! Josh On Mon, Jan 10, 2022 at 7:12 AM Josh Morman wrote: > Please note that there is an issue with the RC3 that has been resolved on > the master branch (thanks to drmpeg for catching and fixing a cmake build > order dependency that prevented the grc files from being installed). > &

Re: Release Candidate v3.10.0.0-rc3

raise the alarms if you run into any other issues either here or on #development Josh On Sat, Jan 8, 2022 at 9:23 PM Josh Morman wrote: > 3.10.0.0-rc3 is now available: > https://github.com/gnuradio/gnuradio/releases/tag/v3.10.0.0-rc3 > > There were a few changes since RC2, but

Release Candidate v3.10.0.0-rc3

, the plan is to release the final 3.10.0.0 next Friday Jan 14! Thanks to all who have been contributing and participating in the discussions. Josh On Sat, Dec 11, 2021 at 8:51 AM Josh Morman wrote: > > 3.10.0.0-rc2 is now available: > https://github.com/gnuradio/gnuradio/releases/tag/

Re: OOT Binding problem

PELLET wrote: > >> castxml was installed, pygccxml also in v1.9.1. I upgrade pygccxml to > >> 2.2.1 without success. > >> > >> How to update python version (3.7 actually) without having to > >> recompile gnuradio ? > >> > >> Le 14/12/2021

Re: Regarding open source

ntribute. > > > > Regards > Gunesh munjal > > > On Mon, Jan 3, 2022 at 9:19 PM Josh Morman wrote: > >> Hi Gunesh, >> >> Glad to hear you would like to contribute. This is a great starting >> point: >> https://wiki.gnuradio.o

Re: Regarding open source

Hi Gunesh, Glad to hear you would like to contribute. This is a great starting point: https://wiki.gnuradio.org/index.php/Development And also, it can be useful to join the conversation at chat.gnuradio.org to ask questions Looking forward to seeing you get involved - it can be a great

Re: OOT Binding problem

Sounds like castxml could be playing a role here. Along the same lines Ron suggested, you could try installing both pygccxml and castxml from pip3 Josh On Tue, Dec 14, 2021 at 6:23 AM Ron Economos wrote: > I've tried it on both Ubuntu 18.04 and 20.04, so I don't think it's due > to the Python

Re: Release Candidate v3.10.0.0-rc1

more major issues to sort out. Have a great weekend! Josh On Sat, Nov 27, 2021 at 10:29 AM Josh Morman wrote: > Greetings GNU Radio Community! > > Release 3.10 is expected to drop sometime in the new year, but to get the > ball rolling with testing and packaging - we are expect

Re: Calling blocks directly

This sounds like a very interesting project - but separating out the calls to blocks from the underlying framework is very difficult in GNU Radio for many reasons, but one being that the blocks call back into the scheduler for things like getting the number of items read/written, and updating

Release Candidate v3.10.0.0-rc1

Greetings GNU Radio Community! Release 3.10 is expected to drop sometime in the new year, but to get the ball rolling with testing and packaging - we are expecting a longer than usual Release Candidate cycle, and likely there will be *at least* one more RC, so here is v3.10.0.0-rc1

newsched (GR4 proposed runtime) v0.1.0 Released

Hello GR Community! It has finally come time to put out a newsched release - up to this point the codebase has been rapidly evolving, but has converged on a set of core features as of recently. https://github.com/gnuradio/newsched/releases/tag/v0.1.0 Newsched is the proof of concept framework

Re: Calculating Symbol Sync Parameters

There is a lot of information in this talk from GRCon: https://youtu.be/uMEfx_l5Oxk On Tue, Nov 9, 2021 at 10:15 PM wrote: > Hello all, > > > > I’ve been working with the symbol sync block and I was wondering how to > calculate the parameters (TED Gain, Loop bandwidth, etc) given information

Re: Information on the hackfest2110

Hi Mike, It looks like the streamed videos from twitch have disappeared (as they do after a couple weeks). Official support for the "custom buffers" functionality will be a part of the 3.10 release, and I'm working on putting together a gr-cuda OOT that will capture the basics of how to use

Re: ModuleNotFoundError: No module named 'tutorial'

Sounds like a python path issue. Please ensure that the PYTHONPATH environment variable is set to include wherever directory `make install` placed things. PYTHONPATH by default includes /usr/lib/python3.8/... but does not automatically search for /usr/local/lib/python3.8/... Can you share where

Re: Problem building OOTs with GR 3.9.3.0 PPA package

I've requested deletion of the pybind11 package from the PPA (this takes a few hours) - it should not be in there as 20.04 has a decent version of pybind11. So at least by tomorrow, uninstalling pybind11 and reinstalling should resolve the issue. On Sat, Oct 16, 2021 at 2:56 PM schneider

Re: ModToolException: Could not find gr-newmod source dir.

What OS/Distribution and how is GNU Radio installed? Josh On Tue, Oct 5, 2021 at 5:20 AM sp h wrote: > in Gnuradio-dev 3.9 when I want to create a block I am faced with this > error... how can solve it... > > gr_modtool newmod tutorial ModToolException: Could not find gr-newmod > source dir. >

GRCon21 Regular Registration Ends Tomorrow

GRCon21 in Charlotte, NC is just 3 weeks away! Late Registration for GRCon21 starts September 1, so please make sure to register by tomorrow: https://tickets.gnuradio.org/grcon21/ The schedule is quite full but we are still accepting any last minute submissions, especially for workshops, so

Re: How to debug GNU Radio's C++ program from source code?

the original > module to modify it? > Sincerely > > > -- 原始邮件 -- > *发件人:* "Josh Morman" ; > *发送时间:* 2021年8月3日(星期二) 晚上9:48 > *收件人:* "能书能言"<2127629...@qq.com>; > *抄送:* "discuss-gnuradio"; >

Re: How to debug GNU Radio's C++ program from source code?

Hello! Even though GNU Radio has python bindings with swig or pybind11, the underlying code c++ symbols are still accessible with GDB. Using Visual Studio Code and GNU Radio compiled from source with Debug Symbols this is pretty straightforward: 1) Open up the source tree of gnuradio in visual

Re: GRC port type assignment in Python Block

Hi Jerrid, Your attempt at using structures to map to a complex type is sensible, but it appears that GRC doesn't parse this very well for at least the embedded python blocks. The UHD blocks are c++ based which just uses the io_signature object in the constructor which specifies a size, not a

GNU Radio 3.10 Release Plans - OOT migration

Hello Everyone! As we've mentioned on the project calls and elsewhere, the current plan is to release v3.10 of GNU Radio prior to GRCon (Sept 20-24, go register here: events.gnuradio.org/e/grcon21). 3.10 is a much smaller step from 3.9 than was 3.8 from 3.7 or 3.9 from 3.8. There are, however,

Re: Releases v3.8.3.1 and v3.9.2.0

Thanks Jeff for pulling together these releases. The Ubuntu PPAs have been updated to reflect the latest (thanks to Maitland for the updated debian build projects to copy from): https://wiki.gnuradio.org/index.php/InstallingGR#Ubuntu_PPA_Installation On Thu, Jun 10, 2021 at 5:51 PM Jeff Long

gr-iio now merged onto master branch

Greetings GR community! Thanks to the work of many people over a long period of time, gr-iio, which brings in direct support for Analog Devices hardware including the Pluto SDR into GNU Radio, has been merged in-tree. Special thanks the people that put the effort in here to develop this module

Re: issues porting C++ OOT to 3.9 - fails at runtime import

Tom, It looks like the OOT might be using a different version of pybind11 than the ppa version of gnuradio was built against. The PPA for 20.04 appears to have been built using pybind11 v2.5.0, but the default with Ubuntu 20.04 is 2.4.3. I can repeat the symptom you see when creating a docker

Re: gr 3.9 OOT execution error: unknown base type gr::block

> py::class_ std::shared_ptr>(m, "hermesNB", D(hermesNB)) > > .def(py::init(::make), >py::arg("RxFreq0"), > ... long list of arguments... > D(hermesNB,make) > ) > > -- Tom, N5EG > > > On Wed,

Re: gr 3.9 OOT execution error: unknown base type gr::block

Tom, What does your hermesNB_python.cc look like? There should be a declaration for the binding in there that looks like: py::class_ wrote: > I'm working on porting my OOT to gr 3.9 The 3.7 and 3.8 versions work > fine. > The ported code is compiled and make installed. My OOT is visible

Re: GNU Radio 3.9 gr_modtool problem

Check your ~/.gnuradio/config.conf file. In there is a section [modtool] and a "newmod_path=..." Verify that matches the value of your installed path. On mine it says: [modtool] newmod_path = /share/gnuradio/gr39/share/gnuradio/modtool/templates/gr-newmod For 3.9, there was a slight change in the

Re: Merging Multiple blocks into one

There is currently no way to merge blocks in GNU Radio without manually merging as you describe. In the future we are aiming to be able to run multiple blocks within a single thread, and have more control over the buffers that are created in the blocks. In the meantime, perhaps this presentation

Re: Solved! - Re: USRP UHD Source problem

Thank you for following up on this issue. The grc cache has turned up a few times recently as the cause of a few issues. So yes a github issue would be a very good idea to track this. Thanks! On Sun, Apr 25, 2021 at 3:52 PM Christophe Seguinot < christophe.segui...@orange.fr> wrote: > Hi > > I

Re: 3.9 -->3.8 downgrade - a few GRC keyboard keys don't work correctly.

Is it possible that the "Hide Disabled Blocks" option is enabled in GRC? This would make disabling appear to delete the block. Josh On Wed, Apr 21, 2021 at 12:16 PM Tom McDermott wrote: > On Ubuntu 20.04, I downgraded a gnuradio 3.9 installation to gnuradio 3.8. > Using sudo apt remove. > > I

Re: Teething problems with new GNU Radio 3.9 installation

ather than the Ettus API. I don't have any experience with this, > but I would be willing to give it a try.) > > Thanks, > Brendan. > > > On Wed, Apr 21, 2021 at 8:26 PM Josh Morman wrote: > >> Brendan, >> >> If you are able to, I would recommend updating to U

Re: Teething problems with new GNU Radio 3.9 installation

Brendan, If you are able to, I would recommend updating to Ubuntu 20.04 and then using the ppa to install 3.9: https://wiki.gnuradio.org/index.php/InstallingGR (from PPA section) If you are stuck with 18.04, I would recommend dropping back to v3.8 and follow the same instructions. If you must

In-tree packaging update

A quick update on the efforts to provide distribution packaging in-tree, where the goal is to keep distribution builds up to date with the tip of each branch. There are currently 2 Ubuntu PPAs that get the latest from master (https://launchpad.net/~gnuradio/+archive/ubuntu/gnuradio-master)

Re: problem porting OOT to gr_3.9 : gr_modtool bind error

> Quite frankly, it looks like gr_modtool is throwing an error when trying to > concatenate the module name and path and the .h suffix and suffering > a type mismatch (NoneType vs. str). Is this possibly a Python 3.x > version dependency? > > -- Tom, N5EG > > > > > >

Re: problem porting OOT to gr_3.9 : gr_modtool bind error

look through the code and figure out how to merge the > 3.8 and 3.9 .h and .cc files together? > Then do I put those merged file into the 3.8 or the 3.9 directory? > > -- Tom, N5EG > > > > > > > > On Fri, Apr 9, 2021 at 9:27 AM Josh Morman wrote: > >

Re: problem porting OOT to gr_3.9 : gr_modtool bind error

Tom, If I am following correctly, it looks like you are running gr_modtool (which is the 3.9 version since that is what you have installed in the VM) in the 3.8 OOT directory? What happens when you run `gr_modtool bind` in the gr-hpsdr_3.9 directory The process you are following seems sound to

Re: PMT thoughts

John, Thank you for sharing the issues you have come across and recommendation for a cleaned up API. As Johannes mentioned, the GREP highlights our current thinking on PMTs also by leveraging a flatbuffers backend for standardized serialization. There is currently a proof of concept