Re: Pi GNURadion challenge.

[Robert Heerekop]

Dear friends, thanks a lot for your responses.No WBFM music yet. Just to share; I followed these steps which fail:
0. Flash and setup with RaspberryPi4 the 32GbSD Card from Raspberry Pi image file: "2020-02-13-raspbian-buster.img"
1. run "sudo nano /etc/apt/sources.list" and replace "buster" by "testing"
2. run "sudo apt update"
3. run "sudo apt full-upgrade"
4. run "sudo reboot"
5. run "sudo apt install gnuradio"
6. run "sudo reboot"
7. Validate is GUI:Start>Programming>GNU Radio Companion>Help>About shows "3.8.1.0(Python3.7.6)"
7. Loading a hello-world FMWB example showed Missing Block "rtlsdr_source" so end GNU Radio Companion (I have a RTL-SDR stick)
8. run "sudo apt-get install gr-osmosdr"
9. run "sudo apt-get install xterm"
10. sudo reboot
11. run "sudo apt autoremove"
12. Loading the FMWB example again I noticed that there were no Missing Blocks anymore and that "rtlsdr_source" could be used.
13. Generating flow seemed to be going okay.
14. Executing flow generated the failure:
<<< Welcome to GNU Radio Companion 3.8.1.0 >>>
...Warning: failed to XInitThreads()
gr-osmosdr 0.2.0.0 (0.2.0) gnuradio 3.8.1.0
built-in source types: file osmosdr fcd rtl rtl_tcp uhd miri hackrf bladerf rfspace airspy airspyhf soapy redpitaya freesrp
[INFO] [UHD] linux; GNU C++ version 9.2.1 20200104; Boost_106700; UHD_3.15.0.0-2
Assertion 'close_nointr(fd) != -EBADF' failed at src/basic/fd-util.c:71, function safe_close(). Aborting.
>>> Done (return code -6)

I continue with the suggested SDRPlay asap and share the results!
No matter how, but the music will Sound!

Op ma 9 mrt. 2020 om 19:52 schreef Christoph Mayer <address@hidden>:

Hi all,

are there any binary packages adapted for Raspberry PIs allowing to
use full NEON SIMD (armhf/aarch64) for gnuradio+volk?

Cheers
Christoph

On Mon, Mar 9, 2020 at 7:05 PM Glen Langston <address@hidden> wrote:
>
> Hi
>
> Yes. 3.8.1 is the version I’d started to install.   I ran into trouble
> downloading all the support packages.  Slowly but surely I was
> installing everything needed.  But after a few hours of good progress
> I ran out of time.    So I thought I’d just ask if someone more talented
> had already done the install before I put more time into the install.
>
> Definitely, for me, a complete install of the OS is the best, rather than
> on a package by package basis.   Remember to compress (and remove all gmail
> etc logins) before distributing.
>
> It is fairly quick to do the whole install to the SD card, from the
> compressed .img file.   With “Etcher” they uncompress and write simultaneously,
> so you are only working with a couple gigabyte file.
>
> I have 4 working horn radio telescopes working this way and a few more almost
> ready to start observing.  I thought I would get up to date with the
> 3.8.? Gnuradio then restart observations.
>
> Maybe I have to wait.
>
> Thanks in advance.
>
> Glen
>
> > On Mar 9, 2020, at 1:05 PM, Chris Vine <address@hidden> wrote:
> >
> > On Mon, 9 Mar 2020 10:59:04 -0400
> > Glen Langston <address@hidden> wrote:
> >> Hi
> >>
> >> Thanks for your summary of experience with installing Gnuradio 3.8.1 for Raspberry Pi.
> >>
> >> I’ve started the install on a fresh version on the latest Raspberry Pi OS,
> >> but ran into a few issues I’m still working on.
> >>
> >> One question/request for this group:
> >>
> >> The folks at SDRPlay have done a very nice job of porting a good working version of
> >> gnuradio into a working image of the Raspberry OS and compressed it.
> >> (https://www.sdrplay.com/downloads/)
> >>
> >> After downloading (about 2GB) and writing to the SD card, this version just works fine.
> >> The simple-minded user can then just start enjoying Gnuradio.
> >>
> >> However they don’t yet have Gnuradio 3.8.1 on the SD card.
> >
> > As far as I can tell there is no gnuradio-3.8.1.  Where did you find it?
> > I can see a first release candidate as of some weeks ago, which of
> > course is something different.
> >
>
>