Compare cores
Up to four cores side by side: maturity, license, tests and activity.
| Attribute | PicoRV32 | VexiiRiscv | NEORV32 | BlackParrot |
|---|---|---|---|---|
| Maturity | M2 · Simulation-tested | M2 · Simulation-tested | M4 · Production-ready | M2 · Simulation-tested |
| License | ISC · Commercial-friendly | MIT · Commercial-friendly | BSD-3-Clause · Commercial-friendly | BSD-3-Clause · Commercial-friendly |
| Language | Verilog | SpinalHDL (Scala) | VHDL | — |
| Tests | yes | yes | yes | yes |
| CI | yes | yes | yes | yes |
| Formal | — | — | — | yes |
| FuseSoC | yes | — | — | — |
| Activity | updated 25 days ago | updated 4 days ago | updated today | updated 1 day ago |
| Boards | — | — | — | — |
| Interfaces | — | AXI4, Wishbone, Tilelink, AXI4, Wishbone, Tilelink | — | — |
| Category | CPUs and compute | CPUs and compute | CPUs and compute | CPUs and compute |