prjtrellis
f4pga-arch-defs
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prjtrellis | f4pga-arch-defs | |
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5 | 19 | |
381 | 247 | |
0.0% | 0.8% | |
8.5 | 7.7 | |
3 months ago | 5 days ago | |
Python | Jupyter Notebook | |
GNU General Public License v3.0 or later | ISC License |
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prjtrellis
- Project Trellis – Documenting the Lattice ECP5 FPGA Bitstream Format
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Learning Verilog and FPGA
Yosys, the underlying compiler of ice studio, also targets the much bigger ECP5 FPGA, also by Lattice, which is called Project Trellis: https://github.com/YosysHQ/prjtrellis
Yosys functions more like a software open source tool. So command line compiling. It also has a REPL. It is very quick compared to the commercial solutions. Especially around compile times which can take seconds instead of minutes. YMMV, but I think the consensus is that it's a lot more convenient to use.
In general the hardware toolchains feel very ancient compared to software toolchains.
- Project Trellis – fully open-source flow for ECP5 FPGAs, using Yosys and nextpnr
- 5% of 666 Python repos had comma typo bugs (inc V8, TensorFlow and PyTorch)
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Lattice ECP3 - any way of working withe them with free license ?
Not that it will lead to anything soon, you could put a feature request in at Project Trellis and offer to test things, or provide hardware if you have extra.
f4pga-arch-defs
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Learning Verilog and FPGA
QuickLogic [1] seems to support and target the open tool environment for their devices -especially the F4PGA [2] toolkit (known earlier as symbiflow). Others have mentioned Lattice FPGAs. But the impression I got from Lattice is that they like the development of open tools, but don't want to invest too much in it. QuickLogic on the other hand, contribute code and design directly to F4PGA project and allied ones like Migen.
[1]: https://www.quicklogic.com/software/qorc-mcu-efpga-fpga-open...
[2]: https://f4pga.org/
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OpenPOWER Foundation Demoes the LibreBMC Power-Based Open-Source BMC
I note that F4PGA (formerly SymbiFlow) Project X-Ray folks are documenting Xilinx FPGAs, hopefully you will be able to replace your use of Vivado at some point:
https://f4pga.org/
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Intel announces new FPGA families
FPGAs would be so much more useful if AMD(Xilinx)/Intel(Altera) just gave up trying to build there own tools and instead supported F4FPGA: https://f4pga.org
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Arduino IDE 2.0
Have you looked at F4PGA? They are working on exactly that.
https://f4pga.org/
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Embedded Systems Weekly #119
F4PGA In the world of FPGA tools, it is refreshing to be able to use the suite of open source tools provided by F4PGA. For now, it supports only Xilinx 7-Series, Lattice iCE40, Lattice ECP5 FPGAs and QuickLogic EOS S3 but the team behind the projet is working to support more targets.
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Hacker News top posts: Sep 16, 2022
F4PGA: Open FPGA Tooling: Xilinx 7-Series, Lattice iCE40/ECP5, QuickLogic EOS S3\ (19 comments)
- F4PGA: Open FPGA Tooling: Xilinx 7-Series, Lattice iCE40/ECP5, QuickLogic EOS S3
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A working FPGA toolchain on Apple Silicon
In addition to open-source FPGA toolchains (e.g., https://f4pga.org/, GHDL, Verilator, Yosys, IceStudio, etc.), you _can_ actually run vendor/commercial tools (e.g., AMD/Xilinx Vivado) on M1/M2 macs, through virtualization (VM, or containers). Until quite recently, the only available option to run x86_64 on macOS/arm64 was QEMU (e.g., UTM, docker, lima). It worked but was pretty slow, especially for mammoths like Vivado, larger designs, and in case you needed the GUI. With the release of Ventura (currently at final betas), it’s possible to run Linux x86 binaries using rosetta 2, which is way faster than QEMU. I currently run Vivado 2022.1 on macOS/M1 Ventura, using UTM (https://mac.getutm.app/). It’s 100% usable and feels even faster and snappier than my Linux machine!
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Parallel Programming for FPGAs
There are some FPGAs that have been _fully_ reverse engineered and now have open source toolchains, such as Lattice iCE40 and Lattice ECP5(-5G). Others are coming along, such as Xilinx 7 series and Lattice's Nexus FPGAs (CrossLink and Certus products).
See: https://f4pga.org/
As far as boards go, there are many, many out there. Some of my favorites are:
Alchitry Au: https://www.sparkfun.com/products/16527
Olimex iCE40HX8K-EVN: https://www.olimex.com/Products/FPGA/iCE40/iCE40HX8K-EVB/ope...
ECP5-5G evaluation kit: https://www.latticesemi.com/products/developmentboardsandkit...
What are some alternatives?
Vulkan-ValidationLayers - Vulkan Validation Layers (VVL)
apio - :seedling: Open source ecosystem for open FPGA boards
icestorm - Project IceStorm - Lattice iCE40 FPGAs Bitstream Documentation (Reverse Engineered)
finn-examples - Dataflow QNN inference accelerator examples on FPGAs
quickstep - Quickstep project
chisel - Chisel: A Modern Hardware Design Language
icestorm - Project IceStorm - Lattice iCE40 FPGAs Bitstream Documentaion (Reverse Engineered)
verible - Verible is a suite of SystemVerilog developer tools, including a parser, style-linter, formatter and language server
f4pga - FOSS Flow For FPGA
6502-exp - 6502 Computer FPGA Peripherals
arduino-ide - Arduino IDE 2.x