Official FreeRTOS Ports

Don’t see an exact match for your microcontroller part number and compiler vendor choice? These demos can be adapted to any microcontroller within a supported microcontroller family. See the Creating a new FreeRTOS application and Adapting a FreeRTOS Demo documentation pages. As many IDEs are now based on Eclipse, also see the page that describes how to use virtual and linked paths in the Eclipse project explorer to ensure you do not need to copy the RTOS source files into an Eclipse project directory.

FreeRTOS ports are categorised as either being officially supported, or contributed. The Official and Contributed Definitions page describes the categories, and the rationale for making the distinction. This page only lists the official RTOS ports:

  • Altera
    • Supported processor families: Cyclone V SoC (ARM Cortex-A9), Nios II
    • Supported tools: Altera SoC EDS (ARM DS-5 with GCC), Nios II IDE with GCC
  • ARMv8-M
    • Supported processor families: ARM Cortex-M33 simulator
    • Supported tools: GCC (and ARMclang building the FreeRTOS ARMv8-M GCC port)
  • Atmel
    • Supported processor families: SAMV7 (ARM Cortex-M7), SAM3 (ARM Cortex-M3), SAM4 (ARM Cortex-M4 ), SAMD20 (ARM Cortex-M0+), SAMA5 (ARM Cortex-A5), SAM7 (ARM7), SAM9 (ARM9), AT91, AVR and AVR32 UC3
    • Supported tools: IAR, GCC, Keil, Rowley CrossWorks
  • Cadence
    • Supported processor families: Tensilica Xtensa
    • Supported tools: XCC with the Xtensa Xplora IDE
  • Cortus
    • Supported processor families: APS3
    • Supported tools: Cortus IDE with GCC
  • Cypress
    • Supported processor families: PSoC 5 ARM Cortex-M3
    • Supported tools: GCC, ARM Keil and RVDS – all in the PSoC Creator IDE
  • Freescale
    • Supported processor families: Kinetis ARM Cortex-M4, Coldfire V2, Coldfire V1, other Coldfire families, HCS12, PPC405 & PPC440 (Xilinx implementations) (small and banked memory models), plus contributed ports
    • Supported tools: Codewarrior, GCC, Eclipse, IAR
  • Infineon
    • Supported processor families: TriCore, XMC4000 (ARM Cortex-M4F), XMC1000 (ARM Cortex-M0)
    • Supported tools: GCC, Keil, Tasking, IAR
  • Fujitsu (Now Spansion)
    • Supported processor families: FM3 ARM Cortex-M3, 32bit (for example MB91460) and 16bit (for example MB96340 16FX)
    • Supported tools: Softune, IAR, Keil
  • Luminary Micro / Texas Instruments. See also TI.
    • Supported processor families: All Luminary Micro ARM Cortex-M3 and ARM Cortex-M4 based Stellaris microcontrollers
    • Supported tools: Keil, IAR, Code Red, CodeSourcery GCC, Rowley CrossWorks
  • Microchip. See also Microsemi (now Microchip).
    • Supported processor families: PIC32MX, PIC32MZ, PIC32MZ EF, PIC24, PIC24EP, dsPIC, MEC14xx, CEC13xx, CEC17xx, MEC17xx, MEC51xx
    • Supported tools: MPLAB C32, MPLAB C30
  • Microsemi
    • Supported processor families: MiFive (RISC-V), SmartFusion, SmartFusion2
    • Supported tools: IAR, Keil, SoftConsole (GCC with Eclipse)
  • NEC (now Renesas)
    • Supported processor families: V850 (32bit), 78K0R (16bit)
    • Supported tools: IAR
  • Nuvoton
    • Supported processor families: NuMicro M2351 (ARM Cortex-M23)
    • Supported tools: IAR, Keil
  • NXP
    • Supported processor families: VEGAboard (RISC-V), LPC55S6x(ARM Cortex-M33), LPC1500 (ARM Cortex-M3), LPC1700 (ARM Cortex-M3), LPC1800 (ARM Cortex-M3), LPC1100 (ARM Cortex-M0), LPC2000 (ARM7), LPC4000 (ARM Cortex-M4F/ ARM Cortex-M0)
    • Supported tools: GCC, Rowley CrossWorks, IAR, Keil, LPCXpresso IDE, Eclipse, MCUXpresso IDE
  • Renesas
    • Supported processor families: RZ/A1 (ARM Cortex-A9), RX700 / RX71M, RX600 / RX64M / RX62N / RX63N, RX200, RX100, SuperH, RL78, H8/S plus contributed ports
    • Supported tools: GCC, HEW (High Performance Embedded Workbench), IAR Embedded Workbench
  • SiFive
    • Supported processor families: RISC-V RV32
    • Supported tools: Freedom Studio (GCC)
  • Silicon Labs [ex Energy Micro]
    • Supported processor families: EFM32 Gecko (Cortex-M3 and Cortex-M4F), 8051 compatible microcontrollers.
    • Supported tools: Simplicity Studio (GCC), IAR, SDCC
  • Spansion
    • Supported processor families: FM3 ARM Cortex-M3, 32bit (for example MB91460) and 16bit (for example MB96340 16FX)
    • Supported tools: Softune, IAR, Keil
  • ST
    • Supported processor families: STM32 (ARM Cortex-M0, ARM Cortex-M7, ARM Cortex-M3 and ARM Cortex-M4F), STR7 (ARM7), STR9 (ARM9)
    • Supported tools: IAR, Atollic TrueStudio, GCC, Keil, Rowley CrossWorks
  • TI
    • Supported processor families: RM48, TMS570, ARM Cortex-M4F MSP432, MSP430, MSP430X, SimpleLink, Stellaris (ARM Cortex-M3, ARM Cortex-M4F)
    • Supported tools: Rowley CrossWorks, IAR, GCC, Code Composer Studio
  • Xilinx
    • Supported processor families: Zynq, Zynq UltraScale+ MPSoC (64-bit ARM Cortex-A53 and 32-bit ARM Cortex-R5), Microblaze, PPC405 running on a Virtex4 FPGA, PPC440 running on a Virtex5 FPGA.
    • Supported tools: GCC
  • Intel/x86
    • Supported processor families: IA32 (32-bit flat memory model), Quark SoC X1000 (32-bit flat memory model), any x86 compatible running in Real mode only, plus a Win32 port
    • Supported tools: GCC, Visual Studio 2010 Express, MingW, Open Watcom, Borland, Paradigm
  • Contributed ports…
    • Contributed ports exist for Tricore, MICO32, Blackfin, Jennic, eZ80, SuperH and others. Contributed ports are provided “as is” and are not supported directly.

Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.

Latest News

FreeRTOS v10.2.1 is available for immediate download. MIT licensed, includes 64-bit RISC-V, NXP Cortex-M33 demo & Nuvoton Cortex-M23 demo & STM32H745 dual core (AMP) demo.

New Updates to MIT licensed IoT MQTT and POSIX libraries are now available. New library IoT HTTPS is available.  Includes demo projects.

View a recording of the “OTA Update Security and Reliability” webinar, presented by TI and AWS.


FreeRTOS and other embedded software careers at AWS.

FreeRTOS Partners
ARM Connected RTOS partner for all ARM microcontroller cores
Espressif ESP32
IAR Partner
Microchip Premier RTOS Partner
STMicro RTOS partner supporting ARM7, ARM Cortex-M3, ARM Cortex-M4 and ARM Cortex-M0
Texas Instruments MCU Developer Network RTOS partner for ARM and MSP430 microcontrollers
OpenRTOS and SafeRTOS
Xilinx Microblaze and Zynq partner