Compare cores
Up to four cores side by side: maturity, license, tests and activity.
| Attribute | colibri | OpenTitan prim library | verilog-axis | verilog-axi |
|---|---|---|---|---|
| Maturity | M1 · Prototype | M4 · Production-ready | M2 · Simulation-tested | M2 · Simulation-tested |
| License | CERN-OHL-W-2.0 · Copyleft | Apache-2.0 · Commercial-friendly | MIT · Commercial-friendly | MIT · Commercial-friendly |
| Language | VHDL-2008 | — | — | — |
| Tests | — | yes | yes | yes |
| CI | — | yes | yes | yes |
| Formal | — | yes | — | — |
| FuseSoC | — | yes | — | — |
| Activity | — | updated today | updated 2 years ago | updated 2 years ago |
| Boards | — | — | — | — |
| Interfaces | UART, SPI, I2C, JTAG, Avalon-ST, AXI4-Stream, Wishbone B4, Aurora 64b/66b, Avalon-ST, AXI4-Stream, Wishbone B4 | — | FIFO/stream, AXI | AXI |
| Category | Buses and infrastructure | Buses and infrastructure | Buses and infrastructure | Buses and infrastructure |