Microchip https://packs.download.microchip.com/ SAMD51_DFP Microchip SAMD51 Series Device Support - Headers minor version increased to v2.1.0. - Changed integer constant literal macros from _Ux_ to _UNITxx_ (where xx is 32, 16 or 8) (MISRA C2012:R12.2). Hold in reset supported for JLink. Updated MPLAB X debug scripts. Added instance headers. Added support for security bit in MPLAB X. Added multiplex value groups for PMUXE and PMUXO. Added read device ID. Updated MPLAB X debug scripts. Fix the program/debug error when chip is secured. Added value-groups for SERCOM module. Updated XC32 content. Updated MPLAB X debug scripts. Updated captions and registers in CCL. Added XC32 content. Updated programming and debugging scripts. Fixed bug EDBG/Atmel-ICE programming >8kB flash. Removed legacy headers. Fix: Modes in SVD, Value-group for USER_FUSES, define in GCLK. Succeeds Atmel.SAMD51_DFP 1.1.96. Added python programming and debugging scripts for MPLAB X. Microchip Device Family Package Microchip Device Support SAMD51 Headers and startup code for Microchip ATSAMD51G18A Headers and startup code for Microchip ATSAMD51G19A Headers and startup code for Microchip ATSAMD51J18A Headers and startup code for Microchip ATSAMD51J19A Headers and startup code for Microchip ATSAMD51J20A Headers and startup code for Microchip ATSAMD51N19A Headers and startup code for Microchip ATSAMD51N20A Headers and startup code for Microchip ATSAMD51P19A Headers and startup code for Microchip ATSAMD51P20A