[USRP-users] [Discuss-gnuradio] Building custom RFNoC block
martin.braun at ettus.com
Thu Mar 31 17:35:11 EDT 2016
this looks like an error in your module.
Looks like the FIR discussion was taken to another thread (for archive
On 03/29/2016 05:53 AM, William Healey wrote:
> replaceing axi_fir with axi_test resulted in the following error
> ERROR: [Synth 8-439] module 'axi_test' not found
> On Tue, Mar 29, 2016 at 8:47 AM, William Healey
> <williamfredhealey at gmail.com <mailto:williamfredhealey at gmail.com>> wrote:
> ok, thanks
> I looked at the test block code (verilog) and the only reference to
> an FIR I found was the following block:
> axi_fir inst_axi_fir (
> .aresetn(~ce_rst), .aclk(ce_clk),
> I originally left this in because I wasn't sure what it could be
> replaced with. I will try to run it with axi_fir replaced with
> axi_test. Also, to increase the number of taps for my test block, do
> you know if it is as simple as increasing the value of localparam
> NUM_TAPS ?
> Thank you,
> -William Healey
> On Thu, Mar 24, 2016 at 8:57 PM, Martin Braun
> <martin.braun at ettus.com <mailto:martin.braun at ettus.com>> wrote:
> On 03/24/2016 06:34 AM, William Healey wrote:
> > -- ========== Full list of RFNoC blocks: ============
> > -- * 0/Radio_0
> > -- * 0/Radio_1
> > -- * 0/AddSub_0
> > -- * 0/FIR_0
> > -- * 0/FFT_0
> > -- * 0/Window_0
> > -- * 0/NullSrcSink_0
> > -- * 0/LogPwr_0
> > -- * 0/MovingAverage_0
> > -- * 0/VectorIIR_0
> > -- * 0/KeepOneInN_0
> > -- * 0/Test_0
> > -- * 0/FIFO_0
> This is good -- UHD is picking up your new block and all. The
> GNU Radio
> part should be easy in comparison.
> > To try to get the block to appear in GRC I made copies of the cpp
> > (uhd/host/lib/rfnoc/test_ctrl_impl.cpp), hpp
> > (uhd/host/include/uhd/rfnoc/test_ctrl.hpp) and xml
> > (uhd/host/include/uhd/rfnoc/blocks/test.xml) files used by the default
> > FIR filter and again slightly customized them for my test block. After
> > editing the files I also had to make changes to
> > uhd/host/include/uhd/rfnoc/CMakeLists.txt and
> > uhd/host/lib/rfnoc/CMakeLists.txt so that the new cpp and hpp files
> > would be included when I rebuilt UHD. After rebuilding UHD the blocks
> > still did not appear in GRC though.
> Yes, they're unrelated. Note you don't need the .cpp and .hpp
> files for
> simple blocks.
> > To get the test block to appear in GRC I had to add files to my gr-ettus
> > directory (gr-ettus/include/ettus/rfnoc_test_cci.h
> > gr-ettus/lib/rfnoc_test_cci_impl.cc
> > gr-ettus/lib/rfnoc_test_cci_impl.h gr-ettus/grc/uhd_rfnoc_test.xml)
> > and update some makefiles (gr-ettus/include/ettus/CMakeLists.txt
> > gr-ettus/lib/CMakeLists.txt gedit
> > gr-ettus/build/grc/cmake_install.cmake). With the updated files, I
> > rebuilt gr-ettus and the test block now appeared in GNU Radio Companion.
> This is also good; looks on you're on the right path.
> > Now, even though I could add the test block to a flow graph when I tried
> > to run the design I received an error about there being no module
> > ettus.test. To fix this problem I had to edit gr-ettus/swig/ettus_swig.i
> > and add lines for the test block. After rebuilding gr-ettus again the
> > error went away, but was replaced with a new one: RuntimeError: Block
> > control is not of requested type. I believe this error is caused by a
> > lack of certain xml files. Looking in the directory
> I don't think so; given your uhd_usrp_probe output. I suspect some
> reference to the fir block in your test code.
> Your list of files is correct. I think you're nearly there.
> Check for
> any FIR references in your test block.
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