DMA helper/wrapped for ATSAMD21 such as Arduino Zero & Feather M0 Current version of this library no longer requires Adafruit_ASFcore as a prerequisite. However...IT BREAKS COMPATIBILITY WITH PRIOR ...

Arduino Core for SAM D21 extensions to support fine grained power management, especially for the modules ADC, EIC, RTC and TC. Also supports reading Vcc, Vcore and internal temperature. - jnsbyr/ar ...