vivado-risc-v
litex
vivado-risc-v | litex | |
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6 | 29 | |
738 | 2,688 | |
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7.5 | 9.7 | |
6 days ago | 5 days ago | |
Tcl | C | |
- | GNU General Public License v3.0 or later |
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vivado-risc-v
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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?
- How can I learn about RISC-V and use case? I want to do a project for begginers
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Open-source RISC-V CPU projects for contribution
For Xilinx FPGAs : https://github.com/eugene-tarassov/vivado-risc-v
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can one run one a linux distro like debian on an fpga?
I know it would run slowly, im not interested in performance, just curious about fpga capabilities. I found the following project where apparently they instantiate a Rocket chip core and are able to run debian on it. Unfortunately there are no demo images or video, and i dont own a xilinx board, so i dont know what the system is capable of doing. Could one install a lightweight desktop environment or install packages using apt?
- Error when preparing a USB for use with an FPGA
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Running Hello World on a bare-metal RISC-V FPGA
But to save time, since you already have the Eugene Tarassov repo working running linux, you could look into modifying the bootrom for your needs. For example, you could take out all the stuff about loading files from SD card etc. and just include kprint.h and the bare minumum you need to print out over UART.
litex
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FPGA Dev Boards for $150 or Less
https://github.com/enjoy-digital/litex
they have tutorials, you can get compatible boards for around $20
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Need help to build a RISC-V Processor on Artix-7 FPGA: Final Year Engineering Project Guide
With LiteX you can synthesize a VexRiscV processor. You can run Linux on it. The toolchain is pretty easy to use, as long as you use Xilinx Vivado to compile to gateware.
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Sunset TCL scripts ?
LiteX is a great example of a Python-first flow. However, they have chosen not to subordinate the scripting environment to a GUI toolchain - EDA vendors are unlikely to choose the same trade.
- synthesizing and using the Ibex RISC-V core
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Been messing around with litex and migen on my Tang Primer 20K
To lean these: https://github.com/enjoy-digital/litex, https://github.com/m-labs/migen
- CPU design for college project
- How can I learn about RISC-V and use case? I want to do a project for begginers
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How Much Would It Cost For A Truly Open Source RISC-V SOC?
If you use LiteX to generate a VexRiscV system-on-a-chip, you can include an open source DDR DRAM PHY. This works on Xilinx Spartan-6, Spartan7Artix7/Kintex7/Virtex7 FPGAs, and Lattice ECP5 FPGAs. DDR/LPDDR/DDR2/DDR3 depending on the FPGA.
- LiteX: Build Hardware Easily
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Using FPGAs for computations as a beginner
I am interested in trying out FPGAs for the purpose of running specific calculations more efficiently. Since the calculations themselves are quite complex, I would need to be able to program in a relatively high-level language. I've seen that designing SoC in Python is possible, for example with Litex (https://github.com/enjoy-digital/litex) or Amaranth (https://github.com/amaranth-lang/). I don't want to spend hundreds of hours learning about FPGAs, but I'm prepared to take on a challenge.
What are some alternatives?
chipyard - An Agile RISC-V SoC Design Framework with in-order cores, out-of-order cores, accelerators, and more
nmigen-tutorial - A tutorial for using nmigen
picorv32 - PicoRV32 - A Size-Optimized RISC-V CPU
SpinalHDL - Scala based HDL
rocket-chip - Rocket Chip Generator
fusesoc - Package manager and build abstraction tool for FPGA/ASIC development
Rudi-RV32I - A rudimental RISCV CPU supporting RV32I instructions, in VHDL
SaxonSoc - SoC based on VexRiscv and ICE40 UP5K
neorv32-setups - 📁 NEORV32 projects and exemplary setups for various FPGAs, boards and (open-source) toolchains.
openwifi - open-source IEEE 802.11 WiFi baseband FPGA (chip) design: driver, software
mempool - A 256-RISC-V-core system with low-latency access into shared L1 memory.
verilog-ethernet - Verilog Ethernet components for FPGA implementation