There is one caveat. The FPGA code has a top-level block with lots of I/O pins defined and the corresponding constraints. You should be very careful not to change these or alter the pin constraints.

The iCE40 FPGA has 144 pins, so you’re probably asking yourself where they all end up, and frankly, so are we. There are eight user LEDs on the board, plus the 28 I/O pins that end in pinheaders.

Altera Corporation unveiled its latest programmable solutions tailored for embedded developers who are pushing the boundaries ...