I'm guessing the Spartan II was used because it is compatible with 5V IO
Spartan 2 was used because it was free, author salvaged it together with Atmega128 from some scrap he had laying around :)
Here is a prototype https://imgur.com/gallery/486-homebrew-computer-lsUiWdw
The most impressive part of this build is that maniek86 (Piotr Grzesik) is still in High School (electronics oriented CTE).
Spartan 2 was used because it was free, author salvaged it together with Atmega128 from some scrap he had laying around :)
Here is a prototype https://imgur.com/gallery/486-homebrew-computer-lsUiWdw
The most impressive part of this build is that maniek86 (Piotr Grzesik) is still in High School (electronics oriented CTE).