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Is it ok to include the CMSIS code in a open source project for Cortex M based mcu:s?

Johan Simonsson
Note: This was originally posted on 13th April 2011 at http://forums.arm.com

Hi

After reading the license for the CMSIS I am a little bit confused.
  • Is it ok to include the CMSIS code in a open source project for Cortex M based mcu:s?
  • Is it ok if that project is under the GPL license?
  • Is it ok if that project is under the Apache2.0 license?
Thanks Johan
Parents
  • Arm Employee Badge
    Note: This was originally posted on 22nd April 2013 at http://forums.arm.com

    ARM has change licensing of CMSIS in Version 3.20.  The software components contained in this folders are under the terms of the BSD License:

    (a) ./CMSIS/DSP_Lib - DSP Library sources and examples;
    (B) ./CMSIS/Include - Header files;
    (c) ./CMSIS/Lib - DSP Library build for various toolchains;
    (d) ./CMSIS/RTOS - Header file template for CMSIS-RTOS implementation; and
    (e) ./Device - Template files and implementations for Cortex-M class processors.


    If you are using CMSIS Version 3.20 (available for download under www.arm.com/cmsis) and only the portions contained in the above folders (which are essentially the software portions needed in Cortex-M projects) you are fine.  The BSD licence is compatible with GPL or Apache licenses and you can therefore include the CMSIS 3.20 software outlined above in open source projects.
Reply
  • Arm Employee Badge
    Note: This was originally posted on 22nd April 2013 at http://forums.arm.com

    ARM has change licensing of CMSIS in Version 3.20.  The software components contained in this folders are under the terms of the BSD License:

    (a) ./CMSIS/DSP_Lib - DSP Library sources and examples;
    (B) ./CMSIS/Include - Header files;
    (c) ./CMSIS/Lib - DSP Library build for various toolchains;
    (d) ./CMSIS/RTOS - Header file template for CMSIS-RTOS implementation; and
    (e) ./Device - Template files and implementations for Cortex-M class processors.


    If you are using CMSIS Version 3.20 (available for download under www.arm.com/cmsis) and only the portions contained in the above folders (which are essentially the software portions needed in Cortex-M projects) you are fine.  The BSD licence is compatible with GPL or Apache licenses and you can therefore include the CMSIS 3.20 software outlined above in open source projects.
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