ULX3S-85FIntergalaktik
Intergalaktik ULX3S-85F development board with LFE5U-85F-6BG381C (ECP5).
Lattice ECP5open toolchainprice at the sellerchecked 2 days ago
ULX3S
Open-hardware Lattice ECP5 board used for open-source FPGA development, education, LiteX and retro-computing projects.
Lattice Semiconductor ECP5open toolchainprice at the sellerchecked 10 days ago
Worth knowing
Memory, USB and video details are revision-dependent; check the exact PCB revision.
Facts
Maker page: checked 10 days ago
- FPGA
- LFE5U-85F-6BG381C
- Family
- Lattice Semiconductor ECP5
- Memory
- SDRAM varies by revision
- Interfaces
- Digital video connector, SD card, USB
- Toolchains
- Yosys + nextpnr + Project Trellis
- Open toolchain
- Project Trellis
- Level
- Intermediate
- Status
- in production
- Price
- price at the seller
Documents and examples
Where to ask: ULX3S project links
Similar boards
ULX3S-12FIntergalaktik
Intergalaktik ULX3S-12F development board with LFE5U-12F-6BG381C (ECP5).
Lattice ECP5open toolchainprice at the sellerchecked 2 days ago
OrangeCrabGreg Davill / OrangeCrab
Compact open-source Lattice ECP5 board commonly used with LiteX, USB and open-source ECP5 flows.
Lattice Semiconductor ECP5open toolchainprice at the sellerchecked 10 days ago
Related articles
Yosys is an open-source synthesis tool; nextpnr is a portable place-and-route tool supporting several FPGA architectures through device databases.
Start by identifying the ULX3S revision and ECP5 size, then use the documented open ECP5 flow and board-specific constraints.
A RISC-V softcore project needs enough logic, memory, a debug path, firmware build flow and a board-specific memory/IO map.
Linux-capable FPGA projects need a CPU subsystem or large softcore, external memory, storage or boot media, console and a reproducible software build.