Hi Chad! So, yeah, it seems we forgot to wrap the raw C++ GLFSR with SWIG, so that it's not directly available in Python-land.
So, this[1] fixes that. You'd use it like this: * have an import Block, "from gnuradio import digital" * Have a variable with id "taps_gen" (or so), value "digital.glfsr(degree, seed)". Any integer seed for which (seed%(2**degree))>0 is valid. * in your Filter, use "[taps_gen.next_bit() for _ in range(31)]" Hope this helps, Best regards, Marcus [1] https://github.com/gnuradio/gnuradio/pull/1472 On 09/26/2017 05:45 PM, Chad Spooner wrote: > All: > > I've got a working signal generator in GRC that uses the FFT Filter > block. In the Taps > field of this block, I've hand-entered a length-31 sequence that is an > MLSR sequence. > These sequences can be generated using the GRC block GLFRS Source as well. > > What I would like to do is call GLFSR from within the FFT Filter Taps > field with arguments > that depend on a Parameter. Specifically, the Degree parameter of > GLFSR would > be tied to a Parameter in the flowgraph. > > I've been searching around the web for a way to do this, but I can't > seem to find how > to call things like GLFSR as opposed to using the GLFSR block in GRC. > My Google > searches do not seem to contain the correct keywords to get me to the > help I need. > > I'd appreciate any hints, especially links to explanations on the web. > > Thanks! > > Chad > > -- > Chad M. Spooner > NorthWest Research Associates > 301 Webster Street > Monterey, CA 93940 > cmspoo...@nwra.com > 831 582 4904 > cyclostationary.blog > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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