In general in this repository:
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The HDL core itself is licensed under the terms of the "CERN Open Hardware Licence Version 2 - Permissive" license.
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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.
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The tiny-usb stack driver is licensed under the terms of the MIT license.
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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.