rocket-chip
Rocket Chip Generator (by chipsalliance)
fusesoc
Package manager and build abstraction tool for FPGA/ASIC development (by olofk)
Our great sponsors
| rocket-chip | fusesoc | |
|---|---|---|
| 12 | 12 | |
| 3,011 | 1,118 | |
| 2.4% | - | |
| 7.8 | 7.3 | |
| 4 days ago | 18 days ago | |
| Scala | Python | |
| GNU General Public License v3.0 or later | BSD 2-clause "Simplified" License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
rocket-chip
Posts with mentions or reviews of rocket-chip.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-03-08.
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Recommendations for RISC-V on FPGA
Hello. I'm looking into implementing RISC-V on an FPGA for a school project. The two repos I'm looking into using are the Ariane and RocketChip repos. Both look actively maintained, but RocketChip has more recent releases, and it's used by this other repo that creates a block design in Vivado with the RISC-V RTL. However, we would also like to be able to make changes to the core, and I'm afraid that scala/Chisel might be difficult to learn. Ariane looks like SystemVerilog while RocketChip is mostly Chisel. Does any have recommendations on which RISC-V repo would be good to use for a project?
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RISC-V Pushes into the Mainstream
You could do a trial build of an in-order Rocket RISC-V core [1] to see how much space it takes up.
[1] https://github.com/chipsalliance/rocket-chip
- Can anyone explain simply how OpenSource the RISC-V actually is?
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Stages of prototyping a RISC-V processor on an FPGA?
My definition of a RISC CPU is one that has a reduced instruction set. In other words, the category of CPU is defined by the size of the instruction set, not in how it is implemented. Consider for example RISC-V CPUs. These are defined by their open instruction set alone, in spite of the fact that many implementations of RISC-V CPUs exist: some pipelined, and some not.
- FPGA for RISC-V Processor
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How are modern processors and their architecture designed?
More complex CPUs are typically completely out of scope for hand coding, therefore you can implement generators like: https://github.com/chipsalliance/rocket-chip
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Anandtech: "IBM Power10 Coming To Market: E1080 for 'Frictionless Hybrid Cloud Experiences'"
We don't have Sifive's specifically but we do have the open source cores they've historically used to design their cores: https://github.com/riscv-boom/riscv-boom https://github.com/chipsalliance/rocket-chip
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Project ideas for RISC-V?
This would allow you to experiment with your own chip or something like [the RocketChip generator](https://github.com/chipsalliance/rocket-chip).
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Question: Does the 32bit version of Rocket still supports FPU
https://github.com/chipsalliance/rocket-chip/blob/c7da610430f51b02ebda37f3d444674dc8f2adbf/src/main/scala/system/Configs.scala#L28
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The First Affordable RISC-V Computer Designed to Run Linux
I don't know about the u74 specifically, but sifive does seem to invest in a open source risc-v core called rocket-chip.
fusesoc
Posts with mentions or reviews of fusesoc.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-03-28.
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fusesoc VS vextproj - a user suggested alternative
2 projects | 28 Mar 2024
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Introduction to FPGAs
Check out https://github.com/olofk/fusesoc. It gives you a command line build flow that can drive Vivado (along with many other eda tools via edalize https://github.com/olofk/edalize) without having to touch the GUI (though you might want it for programming the board, though FuseSoC can do that too).
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CI/CD for FPGA builds
Check out FuseSoC: https://github.com/olofk/fusesoc it can run Vivado builds for you (as well as many other tools). It may be less work to get FuseSoC setup then work out a CLI Vivado batch flow from scratch.
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Besides misterFPGA what else can I play with on a DE10-nano?
Also, the FuseSOC and LiteX projects both support the DE10 nano, and can be used to roll your own custom SOCs with RISC-V or OpenRISC cores.
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Why isn't all verification work done in Python
Integration with the dependency and build tool I use (FuseSoc) is clumsy.
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Using Python with Vivado Projects
The "fusesoc" project may be of interest to you.
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Any recommendations for an RTL "standard library"?
FuseSoC is an RTL package manager. It will automatically download the latest versions of required components when you build. It also comes with a bunch of great options for components here:
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What should a modern IP library look like?
Have to correct this slightly: I just heard of my first HDL package manager in this thread. FuseSOC: https://github.com/olofk/fusesoc - Thanks u/gac_cag!
- Olof Kindgren on LinkedIn: We have a new world record! 6000 RISC-V cores in a single chip!
- Industry development process?
What are some alternatives?
When comparing rocket-chip and fusesoc you can also consider the following projects:
riscv-boom - SonicBOOM: The Berkeley Out-of-Order Machine
litex - Build your hardware, easily!
chipyard - An Agile RISC-V SoC Design Framework with in-order cores, out-of-order cores, accelerators, and more
edalize - An abstraction library for interfacing EDA tools
openlane - OpenLane is an automated RTL to GDSII flow based on several components including OpenROAD, Yosys, Magic, Netgen and custom methodology scripts for design exploration and optimization.
opentitan - OpenTitan: Open source silicon root of trust
picorv32 - PicoRV32 - A Size-Optimized RISC-V CPU
cocotb - cocotb, a coroutine based cosimulation library for writing VHDL and Verilog testbenches in Python
skywater-pdk - Open source process design kit for usage with SkyWater Technology Foundry's 130nm node.
teroshdl-documenter-demo - This is an example of how TerosHDL can generate your documentation project from the command line. So you can integrate it in your CI workflow.
vcdvcd - Python Verilog value change dump (VCD) parser library + the nifty vcdcat VCD command line pretty printer.