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Awesome Amaranth

A curated list of awesome projects using or building on the Amaranth project.

Please submit a PR if you have any suggestions!

Core Amaranth components

  • amaranth-soc: Amaranth System-on-a-Chip Framework.
  • amaranth-stdio: Amaranth stream based standard input and output components.
  • RFCs: Process for Amaranth feature addition.
  • template-fpga: Template repository for getting started with general Amaranth FPGA projects

Active Projects

  • Minerva: is a CPU core that implements the RISC-V RV32IMZicsr instruction set built by the maintainer of Amaranth SoC.
  • Coreblocks: is an experimental, modular out-of-order RISC-V core generator implemented in Amaranth.
  • Glasgow: Glasgow Interface Explorer is a tool for exploring digital interfaces
  • LUNA: is a toolkit for working with USB using FPGA technology, providing gateware and software to enable USB applications.
  • Lambdalib: Lambdalib is a collection of cores, helpers and tools for Amaranth created and maintained by LambdaConcept.
  • ORBTrace: Orbtrace is a lightweight, cost effective, USB2-HS Debug and Trace interface for ARM CORTEX-M processors.
  • Tiliqua: Tiliqua is a powerful, open hardware FPGA-based audio multitool for Eurorack.
  • amaranth-exercises: Graded exercises for Amaranth HDL
  • amaranth-lib-bl0x: A collection of (useful) modules written in Amaranth-HDL.
  • amaranth-orchard: Existing open source cores combined with wrappers and glue to enable Amaranth support.
  • amaranth-stubs: Type stubs for Amaranth
  • hexastorm: Hexastorm is a full toolkit for working with polygon lasers scanners using FPGA technology; and provides hardware, gateware, and software to enable laser scanning applications.
  • ili9341spi: Driver for ILI9341 LCD display. Proving ground for niar.
  • learn-fpga-amaranth: This repository contains code to follow the excellent learn-fpga tutorial by Bruno Levy from blinker to RISC-V using Amaranth HDL
  • mtkCPU: mtkCPU is a simple, clear, hackable and very inefficient implementation of RiscV ISA in Amaranth HDL.
  • niar: A small framework for building projects with Amaranth. Provides support for using CXXRTL, optionally with Zig and zxxrtl.
  • pytest-amaranth-sim: Fixture to automate running Amaranth simulations.
  • sae: RV32I softcore
  • sentinel: Sentinel is a small RISC-V CPU (RV32I_Zicsr) written in Amaranth. It implements the Machine Mode privileged spec, and is designed to fit into ~1000 4-input LUTs or less on an FPGA.
  • smolarith: Small arithmetic soft-cores for smol FPGAs.
  • maia-sdr Maia SDR is an open-source FPGA-based SDR project focusing on the ADALM Pluto. It uses Amaranth-HDL for many DSP Blocks
  • ROOM: 10-stage out-of-order RV64IMFDC CPU
  • amaranth-examples: Examples for the Amaranth hardware definition language, enabling the simulation and synthesis of digital circuits using Python.
  • EMBR RV32: A computer architecture project focusing on the RV32 instruction set.
  • hapenny: A half-width RISC-V CPU implementation designed to evaluate the Amaranth HDL, operating internally on 16-bit chunks while executing the RV32I instruction set.
  • Manta: A configurable and approachable tool for FPGA debugging and rapid prototyping that facilitates communication between FPGAs and host machines.
  • naps: Building blocks and tools for FPGA design with Python and Amaranth HDL, including prototypes, stream abstractions, various cores, SOC tools, and experimental projects.
  • Niar: A small framework for building projects with Amaranth and supporting CXXRTL, Zig, and zxxrtl.
  • patina: A minimal Rust framework for RISC-V FPGA control plane development.
  • pytest-amaranth-sim: A pytest plugin to automate running Amaranth simulations with easy setup and VCD generation.
  • maia-sdr Maia SDR is an open-source FPGA-based SDR project focusing on the ADALM Pluto. It uses Amaranth-HDL for many DSP Blocks.
  • Cynthion: An all-in-one tool for building, testing, and experimenting with USB devices using a customizable FPGA-based architecture.

Companies using Amaranth

  • ChipFlow Custom ASIC platform
  • LambdaConcept On-demand software development and hardware programming for a wide range of embedded systems.
  • Apertus Manufacturer of open hardware professional digital cinema camera.

Inactive Projects

Projects that have seen no updates for >6 months. There have been many changes in Amaranth in that time period.

Here be dragons, YMMV.