• 14/7/2020: Added SAMR34 support.

• 10/10/2017: Added SAMD51 support. Downloaded Atmel.SAMD51_DFP.1.0.70.atpack file from http:https://packs.download.atmel.com/.

• Note that in sam.h, the SAMD51 definitions are not included in the SAMD or SAMD_SERIES defines

• Register definitions for the SAMD21, SAMD11, SAML21, and SAMC21 (vendor portion of CMSIS)

• From Atmel ASF 3.32

• Added defines to sam.h to help with conditional compilation of code based on mcu

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