[Discuss-gnuradio] two versions of uhd installed?

[Achilleas Anastasopoulos]

Hi all and happy new year,

It is not clear to me if this question is a usrp or gnuradio related so I send it to both lists. Apologies for the duplication.

----

I have installed a clean version of gnuradio to an ubuntu box

from repos with apt-get.

I then installed from the ettus site the uhd files using:

"Using binaries provided by Ettus Research":

sudo add-apt-repository ppa:ettusresearch/uhd
sudo apt-get update
sudo apt-get install libuhd-dev libuhd003 uhd-host

After trying to communicate with my newly bought X310 
I got some error messages about incompatibility of FPGA images that
I fixed with appropriate downloading/burning the new images to FPGA.

Now commands like uhd_find_devices and uhd_usrp_probe work perfectly, eg,

address@hidden:~$ uhd_find_devices 
[INFO] [UHD] linux; GNU C++ version 7.3.0; Boost_106501; UHD_3.13.0.1-release
--------------------------------------------------
-- UHD Device 0
--------------------------------------------------
Device Address:
    serial: 311D131
    addr: 192.168.10.2
    fpga: HG
    name: 
    product: X310
    type: x300

telling me that I am using UHD_3.13.0.1-release

PROBLEM: however when I run a simple uhd example (eg, uhd_const_wave.py)
I get the following error:

address@hidden:/tmp$ ./uhd_const_wave.py 
Warning: failed to XInitThreads()
linux; GNU C++ version 7.3.0; Boost_106501; UHD_003.010.003.000-0-unknown

-- X300 initialization sequence...
-- Determining maximum frame size... 1472 bytes.
-- Setup basic communication...
Traceback (most recent call last):
  File "./uhd_const_wave.py", line 203, in <module>
    main()
  File "./uhd_const_wave.py", line 191, in main
    tb = top_block_cls(samp_rate=options.samp_rate, freq=options.freq, gain=options.gain, address=options.address)
  File "./uhd_const_wave.py", line 98, in __init__
    channels=range(1),
  File "/usr/lib/python2.7/dist-packages/gnuradio/uhd/__init__.py", line 122, in constructor_interceptor
    return old_constructor(*args)
  File "/usr/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py", line 3012, in make
    return _uhd_swig.usrp_sink_make(*args)
RuntimeError: RuntimeError: Expected FPGA compatibility number 33, but got 35:
The FPGA image on your device is not compatible with this host code build.
Download the appropriate FPGA images for this version of UHD.
Please run:

 "/usr/lib/x86_64-linux-gnu/uhd/utils/uhd_images_downloader.py"

Then burn a new image to the on-board flash storage of your
USRP X3xx device using the image loader utility. Use this command:

"/usr/bin/uhd_image_loader" --args="type=x300,addr=192.168.10.2"

For more information, refer to the UHD manual:

 http://files.ettus.com/manual/page_usrp_x3x0.html#x3x0_flash

------------------------------

So it seems that it is using a different uhd library (UHD_003.010.003.000-0-unknown) than the one I installed from ettus...

How can I fix this?

Thanks

Achilleas