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//
Developers // Real-Time Operating Systems (RTOS) // FreeRTOS

FreeRTOS

In projects that call for a real-time kernel, FreeRTOS often tops the list of candidates. Its feature list may be relatively simple, but this is one of its strengths. FreeRTOS packs all of the functionality needed to write innovative and efficient multi-task application code into a simple package that makes perfect sense for resource-constrained IoT designs.

  1. Overview
  2. Getting Started
  3. Tech Docs
  4. Community & Support
  1. Overview

FreeRTOS Features

Although the FreeRTOS kernel is lightweight—with a Flash footprint that can, in many cases, be reduced to less than 10 kBytes—it provides all of the functionality needed for a robust, multi-tasking application.  The kernel’s capabilities include the following:

 Priority-based, preemptive task scheduling with support for time-slicing

 Multiple dynamic memory allocation schemes to accommodate different system designs and timing needs

 Indirect task communication via queues, event groups, and other kernel objects

 Highly efficient direct-to-task notifications

 Resource protection via mutexes, with support for priority inheritance

 Built-in tracking of various per-task run-time statistics

 Support for one-shot and periodic software timers

Licensing

As its name indicates, FreeRTOS can be used without paying any licensing fees. It is currently offered under the MIT open-source license.  Explore additional information on FreeRTOS licensing.

  1. Getting Started

Download and Install Simplicity Studio

The source code of the FreeRTOS kernel is available to developers through Simplicity Studio.  Within Studio, you’ll find tools for easily adding the kernel to new projects, along with various FreeRTOS-based software examples.  To install Studio, choose the appropriate software package below.

Windows Installer
Mac Installer
Linux Installer
*Simplicity Studio v5 User Guide

Hardware Support

FreeRTOS can be run on both EFR32 and EFM32 devices.  Check Simplicity Studio for example projects targeting your preferred device.

Select a Software Example

Software examples allow you to quickly get FreeRTOS up and running on your board.

Follow these easy steps:

1. Plug kit in with USB; Use the port labeled DBG

2. Open Simplicity Studio

3. Select Software Examples featuring FreeRTOS (see screenshot)

Simplicity Studio

Development Platform

Get up and running quickly with precompiled demos, application notes and examples. Use advanced tools including energy profiling and network analysis to optimize your MCU and wireless systems.

Explore Studio
  1. Tech Docs

Full Free RTOS Developer Docs

  1. Community & Support

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