OP25 Error running rx.py with Ettus USRP B200

[jcardani]

Hi,

I'm trying to run Boatbod's version of OP25 using my B200 SDR and getting the error below. The USB appears to be working and I did download the hardware images. The B200 runs on the older builds using scope.py so it's good. I use the following hardware specific --args 'uhd,nchan=1,subdev=A:A' and 'PGA:50' in the older versions.

thanks!

jcardani@ubuntu:~/op25/op25/gr-op25_repeater/apps$ ./rx.py --args 'uhd,nchan=1,subdev=A:A' -g 65 -f 856.2625e6 -o 12e3 -N 'PGA:50'
Using Python /usr/bin/python3
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 20200304; Boost_107100; UHD_3.15.0.0-2build5
[INFO] [B200] Detected Device: B200
[INFO] [B200] Operating over USB 2.
[INFO] [B200] Initialize CODEC control...
[ERROR] [UHD] Exception caught in safe-call.
in virtual radio_ctrl_core_3000_impl::~radio_ctrl_core_3000_impl()
at /build/uhd-FRfZNJ/uhd-3.15.0.0/host/lib/usrp/cores/radio_ctrl_core_3000.cpp:60
this->peek32(0); _async_task.reset(); -> EnvironmentError: IOError: Radio ctrl (0) packet parse error - AssertionError: packet_info.packet_count == (seq_to_ack & 0xfff)
in uint64_t radio_ctrl_core_3000_impl::wait_for_ack(bool)
at /build/uhd-FRfZNJ/uhd-3.15.0.0/host/lib/usrp/cores/radio_ctrl_core_3000.cpp:254

osmosdr source_c creation failure
Traceback (most recent call last):
File "./rx.py", line 1076, in <module>
rx = rx_main()
File "./rx.py", line 982, in __init__
self.tb = p25_rx_block(self.options)
File "./rx.py", line 168, in __init__
gain_names = self.src.get_gain_names()
AttributeError: 'NoneType' object has no attribute 'get_gain_names'
jcardani@ubuntu:~/op25/op25/gr-op25_repeater/apps$

 

[KA1RBI]

Hi Joe

Been a Long time - good to hear from you.

This error, at least prima facie, appears to be outside of OP25. Can I have you test whether other apps (e.g, gqrx) which use the same gr-osmosdr API as OP25? There is a list of some of these other apps at GrOsmoSDR - gr-osmosdr - Open Source Mobile Communications

The older series of OP25 apps (scope.py) probably used the direct USRP API rather than gr-osmosdr. For this reason the older builds may not be a sufficient test.

Max

 

[jcardani]

Hi Max,

Doing well, thanks! Getting back into OP25 after a long time.

I will try GQRX with the USRP and report back. Thanks!

 

[jcardani]

Looks like GQRX is comparable with Gnuradio 3.8.1 and not 3.9 darn!

jcardani@ubuntu:~$ git clone git://git.osmocom.org/gr-osmosdr
Cloning into 'gr-osmosdr'...
remote: Enumerating objects: 4958, done.
remote: Counting objects: 100% (4958/4958), done.
remote: Compressing objects: 100% (1893/1893), done.
remote: Total 4958 (delta 3569), reused 4266 (delta 3018), pack-reused 0
Receiving objects: 100% (4958/4958), 1.23 MiB | 196.00 KiB/s, done.
Resolving deltas: 100% (3569/3569), done.
jcardani@ubuntu:~$ cd gr-osmosdr
jcardani@ubuntu:~/gr-osmosdr$ mkdir build
jcardani@ubuntu:~/gr-osmosdr$ cd build
jcardani@ubuntu:~/gr-osmosdr/build$ cmake ../
-- The CXX compiler identification is GNU 9.4.0
-- The C compiler identification is GNU 9.4.0
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Build type not specified: defaulting to release.
-- Found PkgConfig: /usr/bin/pkg-config (found version "0.29.1")
CMake Error at CMakeLists.txt:45 (find_package):
Could not find a configuration file for package "Gnuradio" that is
compatible with requested version "3.9".

The following configuration files were considered but not accepted:

/usr/lib/x86_64-linux-gnu/cmake/gnuradio/GnuradioConfig.cmake, version: 3.8.1.0
/lib/x86_64-linux-gnu/cmake/gnuradio/GnuradioConfig.cmake, version: 3.8.1.0



-- Configuring incomplete, errors occurred!
See also "/home/jcardani/gr-osmosdr/build/CMakeFiles/CMakeOutput.log".

 

[boatbod]

Looks like GQRX is comparable with Gnuradio 3.8.1 and not 3.9 darn!

boatbod op25 is not (yet) compatible with gnuradio-3.9 either

 

[jcardani]

Boatbod, Max asked me to try to run gqrx using the B200 and I just documented the error message I received when I tried to build gqrx. So I imagine that OP25 can't work with USRPs anymore? thank you

 

[boatbod]

Boatbod, Max asked me to try to run gqrx using the B200 and I just documented the error message I received when I tried to build gqrx. So I imagine that OP25 can't work with USRPs anymore? thank you

Understood, but if you have gnuradio-3.9 installed on your system you won't be able to build and run boatbod op25 regardless of whether you can make the B200 work with gr-osmocom.

 

[jcardani]

Hi Boatbod
Not sure how Gnuradio 3.9 got on here. I first created the VM, installed Ubuntu 20.04 then in Terminal I did a sudo apt-get update followed by the installation instructions for OP25. Unless when I tried to build gqrx something updated gnuradio? Thanks

 

[lwvmobile]

Just for fun, what's the output of the command:

lsb_release -a

and

apt-cache policy gnuradio

 

[jcardani]

cardani@ubuntu:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.4 LTS
Release: 20.04
Codename: focal

jcardani@ubuntu:~$ apt-cache policy gnuradio
gnuradio:
Installed: 3.8.1.0~rc1-2build2
Candidate: 3.8.1.0~rc1-2build2
Version table:
*** 3.8.1.0~rc1-2build2 500
500 Index of /ubuntu focal/universe amd64 Packages
100 /var/lib/dpkg/status
jcardani@ubuntu:~$

 

[boatbod]

Weird... the output from the gr-osmosdr build seems to think it's 3.9 so something got screwed up in there. 3.8 should be good to go if you can figure out the ghr-uhd problem.

CMake Error at CMakeLists.txt:45 (find_package):
Could not find a configuration file for package "Gnuradio" that is
compatible with requested version "3.9".

 

[lwvmobile]

Just at a glance, and a little google search, the Ettus website suggests that you compile the source code for the USRP, then compile a version of gnuradio. They suggest gnuradio 3.7, but I really don't know if that's a good version to use or not. Maybe maint-3.8 instead if you follow the instructions down that far.

Building and Installing the USRP Open-Source Toolchain (UHD and GNU Radio) on Linux - Ettus Knowledge Base

kb.ettus.com

 

[jcardani]

Hi iwvmobile, I thought UHD would be already there. Anyway I am gonna re-install OS and start over. Gonna try with the RTL SDR first (getting it this weekend) then continue with the USRP issue. Thanks!