Is the verilog/VHDL code for the FPGA also open source? Very
curious how they did the communication with the ASICs.
intron
Only binary version at this moment. Open source version of VHDL should be released later.
Also, check the git repository. Avalon datasheet is available there. Maybe you'll find what are you looking for in it.
From the readme file (
https://github.com/BitSyncom/avalon-ref/blob/master/README.md):
disclaimer:
==========
current version of FPGA bitstream contains licensed parts we can not open source
at the moment,
a licensed free version is being worked on that will be released in the future.
The datasheet is rather vague on some points. The HDL
would help very much. Or probing a running ASIC on a board...