FPGA development boards
For all of m FPGA MPUs I use a FPGA development board which is put as 'piggy back' onto the MPU.
HOWEVER: recent price boosts, especially for Cyclone 10 chips, are massiv. I bought Cyclone 10 in March 2026 for 8€ per piece, now (September 2026) its 50€! So my recommendation is now Cyclone IV !
Because of price jumps and availibility issues on JLCPCB side for Cyclone chips I investigated in Aliexpress boards and found two different boards which you can buy for around 16€ shipping and taxes included.
I tested it and quality is quite good, worked 100%.
By clicking on the picture you will find the ordering page on Aliexpress.For the 'dev open' you need to solder the headers yourself on the 'back side' of the board, the 'core board' comes with assembled headers on the front.
I plan to release versions of all my 'FA boards' with these board as piggy back. First ones are AtariFA, and SternFA, WillFA7 will follow soon.
For more information have a look to my 'board compatibility chart'
Cyclone IV FPGA EP4CE6E22C8N 'dev open' ( choose Color: EP4CE10E22C8N Core )
Cyclone IV FPGA EP4CE6E22C8N 'Core Board'
'LISY dev' DIY Altera Cyclone 10 board(my latest design, recommended )
'LISY dev' DIY Altera Cyclone IV v4 board 
'LISY dev' DIY Altera Cyclone II board when it arrives from JLCPCB. (old design, cannot be used with all 'FA boards')
'LISY dev' DIY Altera Cyclone IV v3 board (old design)
Cheap, but often faulty, Altera Cyclone II dev board which is available on eBay and Aliexpress for 20€ or so. Search for "Altera CycloneII EP2C5T144"Cannot be used with all 'FA boards', check my compatibility chart!
Check if your FPGA is working by using my FPGA checker!