Atmel SAMC21-XPRO

Hardware

Platform Atmel SAM: Atmel | SMART offers Flash- based ARM products based on the ARM Cortex-M0+, Cortex-M3 and Cortex-M4 architectures, ranging from 8KB to 2MB of Flash including a rich peripheral and feature mix.

Microcontroller SAMC21J18A
Frequency 48MHz
Flash 256KB
RAM 32KB
Vendor Atmel

Configuration

Please use samc21_xpro ID for board option in “platformio.ini” (Project Configuration File):

[env:samc21_xpro]
platform = atmelsam
board = samc21_xpro

You can override default Atmel SAMC21-XPRO settings per build environment using board_*** option, where *** is a JSON object path from board manifest samc21_xpro.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:samc21_xpro]
platform = atmelsam
board = samc21_xpro

; change microcontroller
board_build.mcu = samc21j18a

; change MCU frequency
board_build.f_cpu = 48000000L

Uploading

Atmel SAMC21-XPRO supports the next uploading protocols:

  • atmel-ice
  • blackmagic
  • cmsis-dap
  • jlink

Default protocol is cmsis-dap

You can change upload protocol using upload_protocol option:

[env:samc21_xpro]
platform = atmelsam
board = samc21_xpro

upload_protocol = cmsis-dap

Debugging

Debugging - “1-click” solution for debugging with a zero configuration.

Warning

You will need to install debug tool drivers depending on your system. Please click on compatible debug tool below for the further instructions and configuration information.

You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

Atmel SAMC21-XPRO has on-board debug probe and IS READY for debugging. You don’t need to use/buy external debug probe.

Compatible Tools On-board Default
Atmel-ICE    
Black Magic Probe    
CMSIS-DAP Yes Yes
J-LINK