Hi list,
I'm currently in the process of porting my gr-drm project to the 3.7 API and now I'm a little bit stuck and hope that someone here can help me.
I want to create a hier block (in GRC) that accepts vectors as input and output. Their size is controlled by parameters like vlen_in and vlen_out. Unfortunately, the IO size of the generated hier block always stays 1, no matter what I use as parameter. I attached a minimal (pure GNU Radio) example flow graph and hier block that reproduces my problem. Maybe I overlooked something obvious, but I don't get why this is not working.
If someone had the time to try this and could report if it works (it does not for me), I would be very grateful.
I'm on Ubuntu 12.10 and have GNU Radio v3.7.2.1-116-ge751e54a installed.
Regards,
Felix Wunsch
example_hier_block.grc