Compare cores
Up to four cores side by side: maturity, license, tests and activity.
| Attribute | taxi | OpenTitan prim library | colibri | verilog-axis |
|---|---|---|---|---|
| Maturity | M2 · Simulation-tested | M4 · Production-ready | M1 · Prototype | M2 · Simulation-tested |
| License | CERN-OHL-S-2.0 · Copyleft | Apache-2.0 · Commercial-friendly | CERN-OHL-W-2.0 · Copyleft | MIT · Commercial-friendly |
| Language | — | — | VHDL-2008 | — |
| Tests | yes | yes | — | yes |
| CI | yes | yes | — | yes |
| Formal | — | yes | — | — |
| FuseSoC | — | yes | — | — |
| Activity | updated 35 days ago | updated 1 day ago | — | updated 2 years ago |
| Boards | — | — | — | — |
| Interfaces | FIFO/stream, AXI | — | UART, SPI, I2C, JTAG, Avalon-ST, AXI4-Stream, Wishbone B4, Aurora 64b/66b, Avalon-ST, AXI4-Stream, Wishbone B4 | FIFO/stream, AXI |
| Category | Buses and infrastructure | Buses and infrastructure | Buses and infrastructure | Buses and infrastructure |