Hi,
member of my makerspace designed ULX3S opensource FPGA boards
you can check board here, it is open from start...
https://github.com/emard/ulx3shttp://radiona.org/ulx3s/Our board is used is already used on our university in Zagreb for learning digital logic!
There is already lots of material for this board, and lots of samples you can tryout!
https://www.youtube.com/watch?v=CR-pVxN-08kRecently we had two day workshop in our maker space, so there is great material for start using our board (or any other board) with open source toolchain!
https://github.com/ulx3s/fpga-odysseus/blob/master/presentation/FPGA%20Odysseus.pdfThere is lots of other samples we have already done, and lot of samples we want to try!
Only problem with this board is that is still not widely available.
But we are working on that issue.
We have ordered 100 bare PCB (that is minimum order if you want good price) of new design and next week we will confirm design.
After that we will produce third batch of this board (100 pcs. 85F boards with 64Mb of SDRAM).
Recently we submitted our board to Hackaday Prize so your like can help us to make this board more available and more affordable!!!
https://hackaday.io/project/159108-ulx3s-powerful-ecp5-board-for-open-source-fpga We are already in top 5 projects, but it would really nice to stay there