Show HN: First ever FPGA CPU built using open source tools?

This is really cool. Thanks for doing this and sharing the instructions. Also note, James created the Gameduino 1 & 2, which are worth checking out.

http://excamera.com/sphinx/gameduino/ http://excamera.com/sphinx/gameduino2/

Congratulations on the First and thanks for the polished package - this is quite impressive.

I finally cracked open the iCE40 HX datasheet, but was stunned to see the memory block: "Note the sysMEM Embedded Block RAM Memory address 0 cannot be initialized." That's extremely awkward.

Interesting, I wonder if the hardware design of the FPGA is open as well (just to be pedantic), probably not :P