Hi Marcus,
Progress update: Still stuck, but perhaps with some new clues as to what
is going wrong.
I have reinstalled both UHD and GNU Radio: the former from source, the
latter from binaries as recommended on the GNU Radio website. I then
performed the following checks:
- uhd_find_devices & uhd_usrp_probe: OK
- PYTHONPATH manually set to /usr/local/lib/python3/dist-packages
- benchmark_rate & benchmark_rate.py: OK
- In Python 3: from gnuradio import uhd. RESULT: linux; GNU C++
version 7.3.0; Boost_106501; UHD_003.010.003.000-0-unknown* (WRONG!
SHOULD BE UHD v4.0.0.0)*
- In Python 3: uhd.__file__.
RESULT: /usr/lib/python3/dist-packages/gnuradio/uhd/__init__.py
- From command prompt: gnuradio-config-info -v. RESULT: error while
loading shared libraries: libgnuradio-runtime.so.3.8.3git: cannot open
shared object file: No such file or directory *(NOT A GOOD SIGN)*
*Observation 1: *It really looks like the GNU Radio installer is ignoring
my existing, installed UHD driver, and adding its own, older UHD drivers to
my system. See the following console output for details:
The following NEW packages will be installed:
gnuradio gnuradio-dev libcodec2-0.7 libgnuradio-analog libgnuradio-audio
libgnuradio-blocks libgnuradio-channels libgnuradio-digital libgnuradio-dtv
libgnuradio-fec libgnuradio-fft libgnuradio-filter libgnuradio-pmt
libgnuradio-qtgui libgnuradio-runtime libgnuradio-trellis libgnuradio-uhd
libgnuradio-video-sdl libgnuradio-vocoder libgnuradio-wavelet
libgnuradio-zeromq libgsm1-dev libqwt-qt5-6 librtlsdr0 *libuhd003.010.003
libuhd3.15.0* libvolk2-bin libvolk2-dev libvolk2.0 libvolk2.2
python3-networkx python3-zmq rtl-sdr uhd-host
0 to upgrade, 34 to newly install, 0 to remove and 20 not to upgrade.
Need to get 2,310 kB/24.9 MB of archives.
After this operation, 178 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
*Observation 2: *Post-installation, GNU Radio is clearly looking in
the wrong place for the FPGA images. When I open GNU Radio and try to
connect to a UHD block, it is unable to locate the FPGA image for the
block. It then instructs me to run
*/usr/lib/x86_64-linux-gnu/uhd/utils/uhd_images_downloader.py
*(which incidentally is completely the wrong location for that utility):
UHD Warning:
EnvironmentError: IOError: Could not find path for image:
usrp_b200_fw.hex
Using images directory: <no images directory located>
Set the environment variable 'UHD_IMAGES_DIR' appropriately or follow
the below instructions to download the images package.
Please run:
"/usr/lib/x86_64-linux-gnu/uhd/utils/uhd_images_downloader.py"
I have tried setting the environment variable UHD_IMAGES_DIR in my .bashrc
file as shown below, but it makes no difference:
- export UHD_IMAGES_DIR=/usr/local/share/uhd/images
Any suggestions? Should I try installing GNU Radio from source? Or should
I perhaps direct my questions to the GNU Radio mailing list?
Thanks,
Brendan.
On Tue, Apr 20, 2021 at 8:54 AM Marcus D. Leech <patchvonbr...@gmail.com>
wrote:
> On 04/19/2021 06:51 PM, Brendan Horsfield wrote:
>
> OK, I didn't realise that GNU Radio needed the Python UHD module to be
> installed. I deliberately excluded the Python API from my UHD driver build
> in order to try out Christian's custom Python API.
>
> I will remove the custom API today, and install a "stock" UHD driver with
> the Ettus Python API. Then I will give the GNU Radio installation another
> try.
>
> Thanks,
> Brendan.
>
> Gah. Sorry. Brain fart.
>
> Carry on.
>
> so you need to replicate what GR does for UHD in 3.8. In GR3.7:
>
> from gnuradio import uhd
> uhd.__file__
>
> And see where it's coming from (I don't off the top of my head know what
> GR 3.8 idiom is).
>
>
>
>
>
>
> On Tue, Apr 20, 2021 at 8:35 AM Marcus D. Leech <patchvonbr...@gmail.com>
> wrote:
>
>> On 04/19/2021 06:21 PM, Brendan Horsfield wrote:
>>
>> Importing uhd in Python 3:
>> /usr/local/lib/python3.6/dist-packages/uhd-1.1.0-py3.6-linux-x86_64.egg/
>> uhd.cpython-36m-x86_64-linux-gnu.so
>>
>> (Note that this is an alternative Python UHD module written by Christian
>> Hahn, which I have been evaluating for the last few days.)
>>
>> Trying to import uhd in Python 2 (which I never use) returns an error:
>>
>> Traceback (most recent call last):
>> File "<stdin>", line 1, in <module>
>> File "/usr/local/lib/python2.7/dist-packages/uhd/__init__.py", line 10,
>> in <module>
>> File "/usr/local/lib/python2.7/dist-packages/uhd/types.py", line 10, in
>> <module>
>> # "__iter__" and "next" attributes instead.
>> ImportError: cannot import name libpyuhd
>>
>> Brendan.
>>
>> Given that gr-uhd wants a module called "uhd" to exist, and GR uses
>> gr-uhd, i'm not sure what will happen with the
>> name-space pollution that will result.
>>
>>
>>
>
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