Hi,
I wonder if you have a GRC example of your code I can use? If not, then I have to create one myself and will share it with the group.
If you had checked the git repository, you would have found the only GRC stuff in there is:
osmo-tetra/src/demod/grc/tetra_demod_qpsk.xml
But that's only the demodulation (and even then, just a blackbox). All the other layers are not GNURadio blocks at all, they're pure C code libraries / utilities.
There are example python code on how to use it but it's just SOURCE -> TETRA BLOCK -> SINK ... not really worth an example ...
Cheers,
Sylvain