FuryGpu – Custom PCIe FPGA GPU

• verilog-pcie

  8 938 7.0 Verilog

  Verilog PCI express components

The GPU uses this: https://github.com/alexforencich/verilog-pcie . And there is an open-source 100G NIC here, including open source 10G/25G MACs: https://github.com/corundum/corundum

• Rasterix

  1 52 5.6 C++

  OpenGL 1.x implementation for FPGAs

Similarly there is this: https://github.com/ToNi3141/Rasterix

Would be neat if someone made an FPGA GPU which had a shader pipeline honestly.

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• gplgpu

  5 630 0.0 VHDL

  GPL v3 2D/3D graphics engine in verilog

> There's no open hardware GPU to speak of. Depending on license (can't find information?), this could be the first, and a starting point for more.

There's this which is about the same kind of GPU

https://github.com/asicguy/gplgpu

• picodvi

  30 195 0.0 C

  Discontinued [Moved to: https://github.com/Wren6991/PicoDVI]

The RP2040 is a great MCU for playing with graphics as it can bit bang VGA and DVI/HDMI. There's some info on the DVI here: https://github.com/Wren6991/PicoDVI

I wrote a couple of articles on how to do bit banged VGA on the RP2040 from scratch: https://gregchadwick.co.uk/blog/playing-with-the-pico-pt5/ and https://gregchadwick.co.uk/blog/playing-with-the-pico-pt6/ plus an intro to PIO https://gregchadwick.co.uk/blog/playing-with-the-pico-pt4/

• PhobGCC-doc

  27 184 7.0

  Documentation for the PhobGCC

  

I used "composite" (actually monochrome) video output software on the RP2040 for an optional feature on the PhobGCC custom gamecube controller motherboard to allow easy calibration, configuration, and high-frequency input recording and graphing.

Pictures of the output here: https://github.com/PhobGCC/PhobGCC-doc/blob/main/For_Users/P...

• microgpu

  1 8 8.8 C

  2d focused GPU for resource constrained microcontrollers

This is my dream!

The last year I've been working on a 2d focused GPU for I/O constrained microcontrollers (https://github.com/KallDrexx/microgpu). I've been able to utilize this to get user interfaces on slow SPI machines to render on large displays, and it's been fascinating to work on.

But seeing the limitation of processor pipelines I've had the thought for a while that FPGAs could make this faster. I've recently gotten some low end FPGAs to start learning to try and turn my microgpu from an ESP32 based one to an FPGA one.

I don't know if I"ll ever get to this level due to kids and free time constraints, but man, I would love to get anywhere near this.

• NyuziProcessor

  10 1,916 3.4 C

  GPGPU microprocessor architecture

There's also Nyuzi which is more GPGPU focused https://github.com/jbush001/NyuziProcessor, but the author also experimented with having it do 3D graphics.

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• FPGA_DisplayPort

  3 268 10.0 VHDL

  An implementation of DisplayPort protocol for FPGAs

There is an open-source DisplayPort transmitter [1] that apparently supports multiple 2.7 Gbps lanes (albeit using family-specific SERDES/differential transceiver blocks, but I doubt that's avoidable at these speeds). This isn't PCIe, but it's also surprisingly close to PCIe 1.0 (2.5 Gbps/lane, and IIRC they use the same 8b/10b code and scrambling algorithm).

[1] https://github.com/hamsternz/FPGA_DisplayPort

• graphics-gremlin

  13 483 0.0 Verilog

  Open source retro ISA video card

• VGA

  1 0 6.0 Verilog

  Verilog implementation of a VGA compliant with the VGA (Video Graphics Array) standard. Omar Mongy (by OmarMongy)

• Frix

  1 63 - Verilog

  IBM PC Compatible SoC for a commercially available FPGA board

• miaow

  1 887 - Verilog

  An open source GPU based off of the AMD Southern Islands ISA.

  

what about projects like https://github.com/VerticalResearchGroup/miaow ?

• corundum

  28 1,460 9.4 Verilog

  Open source FPGA-based NIC and platform for in-network compute

  

The GPU uses this: https://github.com/alexforencich/verilog-pcie . And there is an open-source 100G NIC here, including open source 10G/25G MACs: https://github.com/corundum/corundum

• Sentinel-65X

  1 9 7.4 C

  A cost-reduced 65816-compatible retrocomputer

  

You might find the Sentinel 65X interesting in that the guy behind it basically said "the X16 is big and clunky and expensive, let's cut out that stuff".

https://github.com/studio8502/Sentinel-65X

It's not yet a deliverable product but watching the developers work on it has been an entertaining part of my doomscrolling diet.

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