I've been looking for some documentation on the MII_RT block in the AM335x PRUs, but I haven't been able to find anything apart from a patent application (describing quite a bit of the system, but leaving out crucial details, like register addresses) and a few posts from some years ago, saying that the MII_RT subsystem was TI internal-use only. Is this still the case? - or would it be possible to get some sort of documentation on it? - and, if possible, maybe the source code for some of the firmware examples (profinet, ethercat, ethernetip) in the Industrial Development Kit?
The reason I'm asking is that I'm currently working on a project where I'd really like to be able to write a very simple real-time Ethernet protocol, and the PRU/MII_RT combination seems to be a pretty good match for this - but if the information on how to actually use it is not available, then I'll obviously have to find another solution.
