no2usb by no2fpga

Small and Flexible USB Device core

Nitro USB core

This fpga core implements a USB Full-Speed SIU using only normal FPGA CMOS IOs.

The main design goals are:

  • Small and efficient (originaly targetting ice40)
  • Flexible, even at runtime (dynamic EP config)
  • Constant size no matter how many EPs are use
  • Single clock-domain (currently 48M but soon extended to any 12M multiple starting at 36M).

Limitations

The current code in this repo targets the iCE40 only and uses some direct SB_IO and SB_RAM_4K instances. A more generic version will be added soon, it has already been run on ECP5 for the Hack-a-day badge 2019 supercon but the small tweaks haven't been added here yet.

License

See LICENSE.md for the licenses of the various components in this repository

In general in this repository:

  • The HDL core itself is licensed under the terms of the "CERN Open Hardware Licence Version 2 - Permissive" license.

  • The custom USB stack is licensed under the terms of the GNU Lesser General Public License v3.0 or later.

    Except for the parts that are re-used in the tiny-usb stack driver, those are licensed under the terms of the MIT license.

  • The tiny-usb stack driver is licensed under the terms of the MIT license.

  • The various small utilities / scripts are licensed under the terms of the MIT license.

Refer to the header of each file to see which license it is under.

See the doc/ subdirectory for the full text of those licenses.

Project Meta

  • Registered on LibreCores 3 months ago
  • Project started 2 years ago
  • Last commit 3 months ago

Commits

{"labels":[2019,2020,2021],"series":[[26,39,23]]}

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{"labels":[2019,2020,2021],"series":[[2,1,1]]}

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{"labels":["Others","C\/C++ Header","Verilog-SystemVerilog","C","Markdown","make","Python","SVG"],"series":[0,15,13,8,6,4,2,1]}

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Data Sheet
Project Web Site
https://github.com/no2fpga/no2usb.git
CERN-OHL-P-2.0
Issue Tracker
Last activity 3 months ago
Primary language: C/C++ Header
88 commits by 2 contributors
Sylvain Munaut Tim Ansell
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activity over the last year

LibreCores data updated 3 months ago