/riscv-cores-list

RISC-V Cores, SoC platforms and SoCs

RISC-V Cores and SoC Overview

This document captures the status of various cores and SoCs that endeavor to implement the RISC-V specification. Note that none of these cores/SoCs have passed the in-development RISC-V compliance suite.

Please add to the list and fix inaccuracies.

Cores

Name Supplier Links Priv. spec User spec Primary Language License
RV32EC_P2 IQonIC Works Website 1.11 RV32E[M]C/RV32I[M]C SystemVerilog IQonIC Works Commercial License
RV32IC_P5 IQonIC Works Website 1.11 RV32I[M][N][A]C SystemVerilog IQonIC Works Commercial License
RV32EC_FMP5 IQonIC Works Website Custom RV32EC SystemVerilog IQonIC Works Commercial License
rocket SiFive, UCB Bar GitHub 1.11-draft 2.3-draft Chisel BSD
freedom SiFive GitHub 1.11-draft 2.3-draft Chisel BSD
Berkeley Out-of-Order Machine (BOOM) Esperanto, UCB Bar GitHub 1.11-draft 2.3-draft Chisel BSD
ORCA VectorBlox GitHub RV32IM VHDL BSD
RI5CY ETH Zurich, Università di Bologna GitHub RV32IMC SystemVerilog Solderpad Hardware License v. 0.51
Ibex (formerly Zero-riscy) lowRISC GitHub 1.11 RV32I[M]C/RV32E[M]C SystemVerilog Apache 2.0
Ariane ETH Zurich, Università di Bologna Website,GitHub 1.11-draft RV64GC SystemVerilog Solderpad Hardware License v. 0.51
Riscy Processors MIT CSAIL CSG Website,GitHub Bluespec MIT
RiscyOO MIT CSAIL CSG GitHub 1.10 RV64IMAFD Bluespec MIT
Lizard Cornell CSL BRG GitHub RV64IM PyMTL BSD
Minerva LambdaConcept GitHub 1.10 RV32I nMigen BSD
OPenV/mriscv OnChipUIS GitHub RV32I(?) Verilog MIT
VexRiscv SpinalHDL GitHub RV32I[M][C] SpinalHDL MIT
Roa Logic RV12 Roa Logic GitHub 1.9.1 2.1 SystemVerilog Non-Commercial License
SCR1 Syntacore GitHub 1.10 2.2, RV32I/E[MC] SystemVerilog SHL v. 2.0
SCR3 Syntacore Website 1.10 RV[32/64]IMC[A], 2.2, milticore SystemVerilog commercial
SCR4 Syntacore Website 1.10 RV[32/64]IMCF[DA], 2.2, milticore SystemVerilog commercial
SCR5 Syntacore Website 1.10 RV[32/64]IMC[FDA], 2.2, milticore SystemVerilog commercial
SCR7 Syntacore Website 1.10 RV64GC, 2.2, milticore SystemVerilog commercial
Hummingbird E200 Bob Hu GitHub 1.10 2.2, RV32IMAC Verilog Apache 2.0
Shakti IIT Madras Website,GitLab 1.11 2.2, RV64IMAFDC Bluespec BSD
ReonV Lucas Castro GitHub VHDL GPL v3
PicoRV32 Clifford Wolf GitHub RV32I/E[MC] Verilog ISC
MR1 Tom Verbeure GitHub RV32I SpinalHDL Unlicense
SERV Olof Kindgren GitHub RV32I Verilog ISC
SweRV EH1 Western Digital Corporation GitHub RV32IMC SystemVerilog Apache 2.0
Reve-R Gavin Stark GitHub 1.10 RV32IMAC CDL Apache 2.0
Bk3 Codasip Website 1.10 RV32EMC / RV32IM[F]C Verilog Codasip EULA
Bk5 Codasip Website 1.10 RV32IM[F]C / RV64IM[F]C Verilog Codasip EULA
Bk7 Codasip Website 1.10 RV64IMA[F][D][C] Verilog Codasip EULA
DarkRISCV Darklife GitHub most of RV32I Verilog BSD
RPU Domipheus Labs GitHub RV32I VHDL Apache 2.0
RV01 Stefano Tonello OpenCores 1.7 2.1, RV32IM VHDL LPGL
N22 Andes Website 1.11 RV32IMAC/EMAC + Andes V5/V5e ext. Verilog Andes FreeStart IPEA
N25F Andes Website 1.11 RV32GC + Andes V5 ext. Verilog Andes Commercial License
D25F Andes Website 1.11 RV32GCP + Andes V5 ext. Verilog Andes Commercial License
A25 Andes Website 1.11 RV32GCP + SV32 + Andes V5 ext. Verilog Andes Commercial License
A25MP Andes Website 1.11 RV32GCP + SV32 + Andes V5 ext. + Multi-core Verilog Andes Commercial License
NX25F Andes Website 1.11 RV64GC + Andes V5 ext. Verilog Andes Commercial License
AX25 Andes Website 1.11 RV64GCP + SV39/48 + Andes V5 ext. Verilog Andes Commercial License
AX25MP Andes Website 1.11 RV64GCP + SV39/48 + Andes V5 ext. + Multi-core Verilog Andes Commercial License
Instant SoC FPGA Cores Website RV32IM VHDL Free Non Commercial

SoC platforms

Name Supplier Links Core License
Rocket Chip SiFive, UCB BAR GitHub,Simulator Rocket BSD
LowRISC lowRISC GitHub RV32IM BSD
PULPino ETH Zurich, Università di Bologna Website,GitHub RI5CY, Zero-riscy Solderpad Hardware License v. 0.51
PULPissimo ETH Zurich, Università di Bologna Website,GitHub RI5CY, Zero-riscy Solderpad Hardware License v. 0.51
Ariane SoC ETH Zurich, Università di Bologna Website,GitHub Ariane Solderpad Hardware License v. 0.51
OPENPULP ETH Zurich, Università di Bologna Website,GitHub RI5CY, Zero-riscy Solderpad Hardware License v. 0.51
HERO ETH Zurich, Università di Bologna Website,GitHub RI5CY, Zero-riscy Solderpad Hardware License v. 0.51
OpenPiton + Ariane Princeton Parallel Group, ETH Zurich, Università di Bologna Website,GitHub Ariane Solderpad Hardware License v. 0.51, BSD
Briey SpinalHDL GitHub VexRiscv MIT
Riscy AleksandarKostovic GitHub RV64I MIT
Raven RTimothyEdwards, mkkassem (efabless.com) GitHub PicoRV32 ISC
PicoSoC Clifford Wolf GitHub PicoRV32 ISC
Icicle Graham Edgecombe GitHub RV32I ISC
MIV RV32IMA L1 AHB Microchip Documentation, IDE, Development Environment Rocket RV32IMA Apache 2.0
MIV RV32IMA L1 AXI Microchip Documentation, IDE, Development Environment Rocket RV32IMA Apache 2.0
MIV RV32IMAF L1 AHB Microchip Documentation, IDE, Development Environment Rocket RV32IMAF Apache 2.0
FreeStart AE250 Andes Website N22 Andes FreeStart: Free for Evaluation
Standard AE250 Andes Website, IDE N22 Andes Commerical License
AE350 Andes Website, IDE N25F, D25F, A25, A25MP, NX25F, AX25, AX25MP Andes Commerical License
SCR1 SDK Syntacore GitHub SCR1, SCRx SHL 2.0

SoCs

Include a chip if it has been fabricated and is either available for sale, available for preorder, or running production workloads internally, and if it has at least one RISC-V hard core (no FPGAs, but non-"SoC" products with controller cores are allowed).

Name Supplier Links Core ISA OS Devkit Availability
FE310-G000 SiFive Datasheet E31 RV32IMAC RTOS HiFive1 public since 2016Q4
FE310-G002 SiFive Product page E31 RV32IMAC RTOS HiFive1 Rev B announced 2019Q1, available for preorder
Freedom U540 SiFive Product page U54 (4 cores), E51 (1 management core) RV64GC (application cores), RV64IMAC (management core) Linux HiFive Unleashed development board public since 2018Q1
GAP8 GreenWaves Technologies Product page PULP / 1 + 8 RI5CY RV32IMC (+ Priviledged and custom ISA extensions) RTOS GAPuino development board public since 2018Q1
K210 Kendryte Product page, Datasheet, GitHub K210 RV64GC RTOS KD233 development board, Sipeed MAIX/M1 development boards public since 2018Q4
RV32M1 NXP Reference Manual and Datasheet RI5CY + Zero RI5CY + Arm Cortex M4F + Arm Cortex M0+ RV32IMC RTOS VEGAboard available for preorder as of 2018Q4
RavenRV32 efabless Datasheet, GitHub PicoRV32 RV32IMAC RTOS RavenRV32 DevKit Limited Quantity
PolarFire SoC Microchip Product Page, IDE with Renode platform U54 (4 cores), E51 (management core) RV64GC(U54), RV64IMAC(E51) Linux HiFive Unleashed Expansion Board, PolarFire SoC HiFive Unleased Expansion Board - Q2 2018, PolarFire Soc – announced December 2018