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f4pga
- Show HN: Atopile – Design circuit boards with code
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AMD Proposes an FPGA Subsystem User-Space Interface for Linux
I hope AMD sees the light and helps F4FPGA develop a more complete open source toolchain for their FGPAs (https://f4pga.org). With this subsystem and an open source compilation flow, FGPA experiments would be way easier.
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Need help to build a RISC-V Processor on Artix-7 FPGA: Final Year Engineering Project Guide
I tried to get LiteX to work with F4PGA, an open source FPGA toolchain, instead of the Xilinx tools, but it was a huge hassle. Just use LiteX with the Xilinx tools.
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Running Linux on Xilinx / AMD FPGA Softcore Example Design
Not really, at least not apples-apples for something like a Pi.
There are a couple of different aspects to this, one is that soft-logic it typically slower than hard-logic so you just can't get comparable frequencies out of a soft implementation. For datapath designs, this is typically solved by going wider, but that isn't quite as helpful or practical for all aspects of a processor implemented in soft logic.
If you look at the specs for this softcore processor, they have much less performance than a Pi, even when you're using some of the biggest and more $$ families of FPGAs: https://www.xilinx.com/products/design-tools/microblaze.html....
I'd say that is on-part with similar complexity soft-core CPUs from other vendors or even open-source ones.
With respect to the design transparency, it kind of depends on how much you care about the black-box compilers required to use a lot of these advanced chips. You can feed open-source RTL into them, but there's still a proprietary black-box compiler/fitter/place-route etc for a lot of these.
There's some work toward open toolchains from yosys and https://f4pga.org/, but none of the big FPGA companies seem very bought-in or willing to help a, so it's been a community best-effort, and for some of the fancier devices, you still have to use the proprietary tools to build bitstreams.
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Newbie's complaints about Xilinx software
I am a believer that the open source days will come: https://f4pga.org/
- Symbiflow: The GCC of the FPGA World
docs
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Syncthing problems
I haven't been able to access https://docs.syncthing.net or https://forum.syncthing.net/ but I was able to access some of the docs via github. I think I've set it up according to the docs. The logs contain lots of messages like:
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Tell HN: Nearly all of Evernote’s remaining staff has been laid off
If you are okay with rclone (and do have vps/server/whatever somewhere) then Syncthing is the thing to do that.
https://docs.syncthing.net/
- i fear to use Sincthing. It has a lot of functionalities.
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All I want is a cabin in the woods and a dual redundant 50TB NAS
Also Syncthing information Syncthing Documentation: https://docs.syncthing.net/
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Backup app recommendation
I am not aware of it. You can look at their documentation or someone at r/Syncthing will be able to tell you for sure.
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Migrating from Google Photos
Syncthing https://github.com/syncthing/docs
What are some alternatives?
icestorm - Project IceStorm - Lattice iCE40 FPGAs Bitstream Documentaion (Reverse Engineered)
python-template - Python project template 🐍.
f4pga-examples - Example designs showing different ways to use F4PGA toolchains.
docs - Documentation and gameplay manual for OpenRCT2.
f4pga-arch-defs - FOSS architecture definitions of FPGA hardware useful for doing PnR device generation.
sphinx-codeautolink - Automatic links from code examples to reference documentation
prjtrellis - Documenting the Lattice ECP5 bit-stream format.
sphinxcontrib-hdl-diagrams - Sphinx Extension which generates various types of diagrams from Verilog code.
atopile - Design circuit boards with code! ✨ Get software-like design reuse 🚀, validation, version control and collaboration in hardware; starting with electronics ⚡️
sphinx - The Sphinx documentation generator
prjxray - Documenting the Xilinx 7-series bit-stream format.
evernote2md - Convert Evernote .enex files to Markdown