Platform Kendryte K210: Kendryte K210 is an AI capable RISCV64 dual core SoC.

Microcontroller K210
Frequency 400MHz
Flash 16MB
Vendor Sipeed


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

platform = kendryte210
board = sipeed-maixduino

You can override default Sipeed MAIXDUINO settings per build environment using board_*** option, where *** is a JSON object path from board manifest sipeed-maixduino.json. For example, board_build.mcu, board_build.f_cpu, etc.

platform = kendryte210
board = sipeed-maixduino

; change microcontroller
board_build.mcu = K210

; change MCU frequency
board_build.f_cpu = 400000000L


Sipeed MAIXDUINO supports the next uploading protocols:

  • iot-bus-jtag
  • jlink
  • kflash
  • minimodule
  • olimex-arm-usb-ocd
  • olimex-arm-usb-ocd-h
  • olimex-arm-usb-tiny-h
  • olimex-jtag-tiny
  • sipeed-rv-debugger
  • tumpa

Default protocol is kflash

You can change upload protocol using upload_protocol option:

platform = kendryte210
board = sipeed-maixduino

upload_protocol = kflash


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


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).

Sipeed MAIXDUINO does not have on-board debug probe and IS NOT READY for debugging. You will need to use/buy one of external probe listed below.

Compatible Tools On-board Default
oddWires IOT-Bus JTAG   Yes
Mini-Module FT2232H    
Olimex ARM-USB-OCD    
Olimex ARM-USB-OCD-H    
Olimex ARM-USB-TINY-H    
Olimex ARM-USB-TINY    
Sipeed RV Debugger    
TIAO USB Multi-Protocol Adapter (TUMPA)    


Name Description
Arduino Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences
Kendryte FreeRTOS SDK Kendryte SDK with FreeRTOS support
Kendryte Standalone SDK Kendryte Standalone SDK without OS support