Boards

retro-silicon runs on several FPGA boards from different makers, so that a mistake hidden by one toolchain shows up on another. The open-source toolchains come first.

Sipeed Tang Nano 20K

FPGA	Gowin GW2AR-18 (LittleBee)
Toolchain	Yosys, nextpnr-himbaechel, Apicula
On the bench	1
Runs	NES (48 of 48 tests passed, 2026-10-28), 2600, IIe, C64, Game Boy, Master System, SNES

Sipeed Tang Console 138K

FPGA	Gowin GW5AST-138 (Arora V)
Toolchain	Yosys, nextpnr-himbaechel, Apicula; Gowin EDA for its PLL
On the bench	1
Runs	NES (46 of 46 tests passed, 2026-10-25), 2600, IIe, C64, Game Boy, Master System, SNES, IIgs, Genesis, Amiga, GBA, PlayStation

TUL PYNQ-Z2

FPGA	AMD Zynq-7020
Toolchain	openXC7 (Yosys, nextpnr-xilinx, Project X-Ray)
On the bench	2
Runs	NES (46 of 46 tests passed, 2026-10-28)

Real Digital Blackboard

FPGA	AMD Zynq-7007S
Toolchain	Vivado
On the bench	1
Runs	Nothing yet

AMD Kria KV260

FPGA	AMD Zynq UltraScale+ (K26)
Toolchain	Vivado ML Standard
On the bench	Planned
Runs	PlayStation, N64, Saturn