Hi, I've been trying to create and use a rfnoc block for n310 within gnuradio 3.8 and uhd4.0. I first tried with pybombs but this doesn't not seem to work very well and there is no default recipe that works. I then moved to manual install from source and got something up using the maint-3.8 and uhd-4.0 branches however none of the rfnoc blocks in uhd 4.0 seem to be usable directly in gnuradio companion as the yaml files in uhd are not compatible with the yaml block files required by grc.
I then moved to master branch of both repositories and this installs with gnuradio, some yaml files for some of the blocks in uhd, so I tired compiling a fpga with fft block as instructed in the tutorial but the fft would not produce output data. Finally I tried compiling the gain example block out of tree and installed its control block both with maint 3.8 branch (that uses swig) and master branches (that uses pybind11) but in both cases the block doesn't get recognized when i issue uhd_usrp_probe and it gets listed as block#0 regardless of Ldconfig. I get it listed in grc after I created a second yaml file compatible with grc but of course running a graph will fail as it doesn't find the block control class, likely because in the installation process I don't see python bindings being generated for it, regardless of the binding creation mechanism. So my questions are: 1) is there any way to use rfnoc in grc as of today that doesn't need manual creation of the block.yaml files? 2) why the fft block using the block.yaml definition from gr-uhd doesn't seem to work? 3) how do I make oot blocks recognized by probe and grc? Thanks, Dario Pennisi
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