I was poking around in the directories of the arm CMSIS "pack" that Atmel Studio installs, and it looks to me like "C:\Program Files (x86)\Atmel\Studio\7.0\packs\arm\cmsis\5.4.0\CMSIS" is woefully incomplete, containing only Core, Core_A, DAP, and Documentation sub-directories. DSP, NN, and RTOS are missing (among others that have subdirectories in the Documentation)??? Where'd they go? (Some are in CMSIS 5.2.0...)