Microchip https://packs.download.microchip.com/ SAMD21_DFP Microchip SAMD21 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 J32 probes. Included fuse description (component\fuses.h). Support for board file. Added read device ID and programming of security bit for MPLAB. Added instance headers. Updated MPLAB X debug scripts. Added value-groups for SERCOM module. Updated XC32 content. Updated MPLAB X debug scripts. Added XC32 content. Fixed AUX3 missing from ATDF for some SAMD21 variants. Renamed SVCall_Handler to SVC_Handler. Updated programming and debugging scripts. Removed legacy headers. Added python programming and debugging scripts for MPLAB X. Succeeds Atmel.SAMD21_DFP 1.3.331. Microchip Device Family Package Microchip Device Support SAMD21 ARM® Cortex®-M0+ -based microcontroller (MCU) with 32KB Flash, 4KB SRAM, 48 MHz, four 16-bit timer/counters and two 24-bit Timer/Counters, DMA, 5 SERCOMs, 14-channel 12-bit ADC, 10-bit DAC, four ACs, 32 pins. It is optimized for lighting, motor control and other control applications ARM Cortex-M0+ -based MCU with 64KB Flash, 8KB SRAM, 48 MHz, four 16-bit timer/counters and two 24-bit Timer/Counters, DMA, 5 SERCOMs, 14-channel 12-bit ADC, 10-bit DAC, four ACs, 32 pins. It is optimized for lighting, motor control and other control applications ARM Cortex-M0+ based MCU with 64KB Flash, 8KB SRAM, 48 MHz, six 16-bit timer/counters and two 24-bit Timer/Counters, DMA, 5 SERCOMs, 18-channel 12-bit ADC, 10-bit DAC, four ACs, 48 pins. It is optimized for lighting, motor control and other control applications Headers and startup code for Microchip ATSAMD21E15A Headers and startup code for Microchip ATSAMD21E15B Headers and startup code for Microchip ATSAMD21E15BU Headers and startup code for Microchip ATSAMD21E15CU Headers and startup code for Microchip ATSAMD21E15L Headers and startup code for Microchip ATSAMD21E16A Headers and startup code for Microchip ATSAMD21E16B Headers and startup code for Microchip ATSAMD21E16BU Headers and startup code for Microchip ATSAMD21E16CU Headers and startup code for Microchip ATSAMD21E16L Headers and startup code for Microchip ATSAMD21E17A Headers and startup code for Microchip ATSAMD21E17D Headers and startup code for Microchip ATSAMD21E17DU Headers and startup code for Microchip ATSAMD21E17L Headers and startup code for Microchip ATSAMD21E18A Headers and startup code for Microchip ATSAMD21G15A Headers and startup code for Microchip ATSAMD21G15B Headers and startup code for Microchip ATSAMD21G15L Headers and startup code for Microchip ATSAMD21G16A Headers and startup code for Microchip ATSAMD21G16B Headers and startup code for Microchip ATSAMD21G16L Headers and startup code for Microchip ATSAMD21G17A Headers and startup code for Microchip ATSAMD21G17AU Headers and startup code for Microchip ATSAMD21G17D Headers and startup code for Microchip ATSAMD21G17L Headers and startup code for Microchip ATSAMD21G18A Headers and startup code for Microchip ATSAMD21G18AU Headers and startup code for Microchip ATSAMD21J15A Headers and startup code for Microchip ATSAMD21J15B Headers and startup code for Microchip ATSAMD21J16A Headers and startup code for Microchip ATSAMD21J16B Headers and startup code for Microchip ATSAMD21J17A Headers and startup code for Microchip ATSAMD21J17D Headers and startup code for Microchip ATSAMD21J18A