Thanks Gavin I’ll take a look.
Best regards Glen > On Feb 3, 2021, at 6:17 PM, Gavin Jacobs <apriljunk...@hotmail.com> wrote: > > Glen, > I'm going through a pain similar to yours. > For working examples, you can look at the source for the blocks that are part > of GNU Radio. For example, the Multiply Constant block shows how to do a > callback, and the Add block shows how to do variable number of inputs. > Unfortunately, these blocks also have the complexity of allowing Vector > inputs, and different types of inputs, so you have to dig through that to get > at the parts you want. > > The closest thing I found for a working OOT module, is documented here: > https://wiki.gnuradio.org/index.php/Guided_Tutorial_GNU_Radio_in_C%2B%2B > It only applies to 3.7 & 3.8, so you still have to sleuth out the differences > for 3.9. Also, it does not show how to do variable # of inputs, nor a > parameter callback. I'm working on a block that needs those; so as soon as I > have it sorted out, I'll put the sources on Github. > Guided Tutorial GNU Radio in C++ - GNU Radio > Note: the get_minimum_distances function declaration also needs to be added > to the class header (my_qpsk_demod_cb_impl.h).The function > get_minimum_distances is a maximum likelihood decoder for the QPSK > demodulater. Theoretically, the function should compute the distance from > each ideal QPSK symbol to the received symbol (It is mathematically > equivalent to determining the Voronoi regions of the ... > wiki.gnuradio.org > > > > Date: Tue, 2 Feb 2021 21:19:32 -0500 > From: Glen Langston <glen.i.langs...@gmail.com> > To: Marcus Müller <mmuel...@gnuradio.org> > Cc: discuss-gnuradio@gnu.org > Subject: Re: New Raspberry PI Complete OS release > > I appreciate gr-modtool, but it is frustrating that modtool does not generate > working code. There really, really, really needs to be an ultra-simple > working > example of C++ code for 3.8 and 3.9 that actually build. > > The code could do anything, but just allow us to use it as the basis for > creating YAML and SWIG/PYBIND code based on the new requirements.