Re: [Discuss-gnuradio] DTV module support and cross compilation for Ettus E312

[Martin Braun]

Did you only cross-compile GNU Radio, or also UHD? You don't really need
to touch the latter, if that's the case.

-- M


On 02/07/2018 08:54 PM, kailash kumar wrote:
> Hi,
> 
> I am trying to compile dtv module for gnuradio on E312 target hardware.
> 
> I am following below grc code for reference:
> https://github.com/gnuradio/gnuradio/blob/master/gr-dtv/examples/dvbt_tx_8k.grc
> https://github.com/gnuradio/gnuradio/blob/master/gr-dtv/examples/dvbt_rx_8k.grc
> 
> After few parameter modifications, these examples were successfully
> executed using Ubuntu host and UHD sink/source specified as two E312
> hardware.
> 
> However since dvt module is not available on E312 by default, I tried
> using cross-compilation sdk from below path:
> http://files.ettus.com/e3xx_images/e3xx-release-4/
> 
> I have followed below steps for cross compilation:
> https://kb.ettus.com/Software_Development_on_the_E310_and_E312
> 
> However, after installation of cross-compiled code (make install
> DESTDIR=<sshfs root mount>), manually executing the generated python
> file gives below error:
> 
> address@hidden:~/Kailash# python dvbs2_tx.py
> linux; GNU C++ version 4.9.2; Boost_105700; UHD_003.009.002-0-unknown
> 
> -- Detecting internal GPSDO
> UHD Error:
>    An error occured making GPSDd interface: RuntimeError: Failed to
> connect to gpsd: can't connect to host/port pair
> Initializing core control...
> -- Performing register loopback test... pass
> Traceback (most recent call last):
>  File "dvbs2_tx.py", line 130, in <module>
>    main()
>  File "dvbs2_tx.py", line 124, in main
>    tb = top_block_cls()
>  File "dvbs2_tx.py", line 45, in __init__
>    channels=range(1),
>  File "/usr/lib/python2.7/site-packages/gnuradio/uhd/__init__.py", line
> 122, in constructor_interceptor
>    return old_constructor(*args)
>  File "/usr/lib/python2.7/site-packages/gnuradio/uhd/uhd_swig.py", line
> 2074, in make
>    return _uhd_swig.usrp_sink_make(*args)
> RuntimeError: RuntimeError: Expected FPGA compatibility number 14.x, but
> got 16.0:
> The FPGA build is not compatible with the host code build.
> Please run:
> 
> "/usr/lib/uhd/utils/uhd_images_downloader.py"
> 
> Executing /usr/lib/uhd/utils/uhd_images_downloader.py python script is
> no help as FPGA version still remains the same.
> 
> Any help here would be appreciated.
> 
> Thanks in Advance.
> 
> Regards
> Kailash
> 
> 
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