Hi Molly - Looks / sounds like you're using GR37 ... yes? If you move to using GR38, you can generate C++ code directly from GRC. You can do so on a your host computer, then copy the resulting C++ code to your target computer & compile it there -- assuming of course that you have GR38 and any required GR OOT modules installed on the target computer. On your host computer, you'd need Python to get GRC, but I think you can avoid SWIG if you want to -- though since it's a host computer (& not the target) you might as well install everything, just not use the GR Python interface generated by SWIG. Does that make sense? Hope this is useful! - MLD
On Fri, Oct 18, 2019 at 10:26 AM Molly Erskine <moers...@gmail.com> wrote: > Hello all! > > I am working on a project where I wish to generate sound wave samples to > then pass these samples out to another program that will generate audio. I > would like to be able to use the GRC to specify the shape and frequency of > the sound wave, but have the output be accessible from an external C++ > program without having to run any Python (working with very limited memory > and don't want to have both C++ and Python programs running at the same > time, especially if communicating between the two using calls to shared > memory). > > I have a hier block that I have generated from a flow graph using GRC. How > can I execute this as a C++ program? > - Is there a way to generate C++ instead of Python from GRC? > - Would I instead be better using gr_modtool to generate a sample hier > block and then coding it manually? > - If that is the case, how would I go from this OOT module in C++ to an > executable (ideally C++) program (without going back to the GRC and > generating xml or a Python script from new flow graph containing the custom > block). > > I'm new to working with GNU Radio so apologies if I am missing something > obvious! > The closest thing I could find to what I am looking for was this lecture: > https://www.youtube.com/watch?v=JJ_OgduYXvs > Which covers a project that allows the generation of executable files > straight from GRC to C++ but unfortunately I cannot locate the source code > online. > > If anything is unclear please let me know! > Thanks in advance, > Molly > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > -- Michael Dickens Ettus Research Technical Support Email: supp...@ettus.com Web: https://ettus.com/
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