Register address in IDE Arduino

Hi,
I am working with Arduino Due, and I tried to found the CMSIS, in the oldier IDE version 1.6.1, it were in the path: C:\Program Files (x86)\Arduino\hardware\arduino, into the folder "sam", inthere there were the description of the diferent files to manage the microcontroler with its own registers.

I can't find it now, but the examples with my oldierest libraries woks fine.

Anyone knows how can access to that information, in Arduino DUE?
And the same question about, Atmel 328 or 128.
Thank you in advance.

Marcos.

The Arduino SAM Boards toolchain is no longer bundled with the Arduino IDE. It is installed to a different location on your computer:

  • File > Preferences
  • Click on the link at the line following "Additional preferences can be edited directly in the file".
  • You will find CMSIS under packagesarduinotools.

The Arduino AVR Boards toolchain is still bundled with the Arduino IDE