[USRP-users] rfnoc-ofdm

Martin Braun martin.braun at ettus.com
Wed Jul 5 15:53:58 EDT 2017

On 06/28/2017 07:55 PM, Walter Maguire via USRP-users wrote:
> Really just looking for clarification on this one.
> I am trying to locate the up to date files which support the GNU Radio
> Conference Tutorial 2015 tutorial
> "Building an OFDM Receiver with RFNoC".
> The reason I ask is that up to now I have been working with the
> rfnoc-devel branch which uses Vivado 2015.4.  I don't see any available
> ofdm noc blocks in the usrp3_rfnoc/lib directory.  If I checkout the
> rfnoc-ofdm I do see the following fpga files in the lib/rfnoc directory
> noc_block_ofdm_constellation_demapper_tb
> noc_block_ofdm_constellation_demapper.v
> noc_block_ofdm_tb
> ofdm_constellation_demapper.v
> ofdm_peak_detector.v
> ofdm_plateau_detector.v
> However the associated build environment seems to require the Vivado
> 2014.4 build system installed.  The tutorial shows blocks for OFDM Sync
> and OFDM Equalizer.  These don't appear to be present in the lib/rfnoc
> directory.
> I would be grateful if someone would clarify the build files and tools
> required.


the tutorial is a bit outdated. Files are now in usrp3/lib/rfnoc, that's
correct. We'll need to spend some time on the tutorial to see what's
still valid and what needs updating.


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