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freertos/freertos-smp-demos

Analysis updated 2026-07-16 · repo last pushed 2025-02-16

68CAudience · developerComplexity · 3/5StaleSetup · moderate

TLDR

A deprecated collection of example applications showing how FreeRTOS can run tasks in parallel across multiple processor cores on devices like the Raspberry Pi Pico. The demos have moved to a new, actively maintained repository.

Mindmap

mindmap
  root((repo))
    What it does
      Multi-core task demos
      Parallel task examples
      Runs on embedded chips
    Tech stack
      C language
      FreeRTOS kernel
      Git submodules
    Use cases
      Robotics projects
      Parallel gadget tasks
      Learning multi-core setup
    Audience
      Embedded developers
      Hardware tinkerers
    Status
      Deprecated project
      Moved to new repo

Code map

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What do people build with it?

USE CASE 1

Learn how to run tasks in parallel on a multi-core microcontroller like the Raspberry Pi Pico.

USE CASE 2

Use a working code example as a starting point for a robotics project needing simultaneous operations.

USE CASE 3

See how to configure the FreeRTOS system to distribute work across multiple processor cores.

What is it built with?

CFreeRTOSGit

How does it compare?

freertos/freertos-smp-demosmitchellh/tree-sitter-protochillymasterio/puttyalt
Stars687559
LanguageCCC
Last pushed2025-02-162024-06-21
MaintenanceStaleDormant
Setup difficultymoderatemoderateeasy
Complexity3/52/52/5
Audiencedeveloperdeveloperops devops

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · moderate Time to first run · 30min

Requires cloning with specific git commands to pull in the FreeRTOS kernel via submodules, downloading as a ZIP will not include the full codebase.

The explanation does not mention a license for this repository.

In plain English

This repository contains example applications showing how FreeRTOS, a small operating system for embedded devices, can run on multi-core processors. It's essentially a collection of ready-to-use demo projects for specific hardware, like the Raspberry Pi Pico and XCORE AI chips. However, it's important to know upfront that this project is deprecated: the demos have been moved to a different repository, and this one no longer receives updates or accepts contributions. FreeRTOS is a real-time operating system designed for microcontrollers and small embedded devices. "Symmetric Multiprocessing" or "SMP" means the system can distribute work across multiple processor cores simultaneously. The demos in this repo show how to set up the FreeRTOS kernel to take advantage of those multiple cores, so instead of one processor doing everything sequentially, tasks can run in parallel on different cores. Someone building a gadget with a multi-core microcontroller would use these demos as a starting point. For example, if you're developing a robotics project using a Raspberry Pi Pico and need certain operations to run at the same time without interfering with each other, these examples show you how to configure the software to do that. Rather than building everything from scratch, you can look at a working example and adapt it to your needs. The project is built in C and uses a feature called "Git submodules," which is a way to pull in the FreeRTOS kernel source code from a separate repository. This means if you download the repository as a ZIP file from GitHub, you won't get the full codebase, you need to use specific git commands to clone it properly. Since the project is deprecated, anyone looking to use these demos should head to the FreeRTOS-Community-Supported-Demos repository instead, where the same examples are being actively maintained and updated.

Copy-paste prompts

Prompt 1
I want to run parallel tasks on a Raspberry Pi Pico using FreeRTOS. Where should I look for actively maintained demo projects, and how do I properly clone the repository to get all the source code including submodules?
Prompt 2
Help me understand how FreeRTOS Symmetric Multiprocessing works for embedded devices and how it lets multiple processor cores run tasks at the same time without interfering with each other.
Prompt 3
I found the deprecated freertos-smp-demos repository. Write a guide showing me how to find the new FreeRTOS-Community-Supported-Demos repository and set up a basic multi-core demo project from there.

Frequently asked questions

What is freertos-smp-demos?

A deprecated collection of example applications showing how FreeRTOS can run tasks in parallel across multiple processor cores on devices like the Raspberry Pi Pico. The demos have moved to a new, actively maintained repository.

What language is freertos-smp-demos written in?

Mainly C. The stack also includes C, FreeRTOS, Git.

Is freertos-smp-demos actively maintained?

Stale — no commits in 1-2 years (last push 2025-02-16).

What license does freertos-smp-demos use?

The explanation does not mention a license for this repository.

How hard is freertos-smp-demos to set up?

Setup difficulty is rated moderate, with roughly 30min to a first successful run.

Who is freertos-smp-demos for?

Mainly developer.

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