Hello, I was wondering if the entire software source code available on Arduino IDEs for DUE is under GNU GPL license.
For the most part that I have seen there are two kinds of license/copyright notices: One explicitly saying GPL 2 and the other by individual contributors using simpler words but meaning the same.
In CMSIS there are some parts that are under ARM Copyright notice but they also say free distribution, free to modify, etc.
What do you think? Are they all under GPL?