Downloading Micrium OS Source Code

Micrium OS source code is available for purchase, or as a free trial, or as part of the Micrium OS for Makers program only through the Platform Builder application.

The Platform Builder is free to download, and is the tool you will need to start working with Micrium OS.

Download Micrium Platform Builder

Micrium OS 45-Day Free Trial

You can evaluate Micrium source code for 45 days, free of charge. You are required to purchase a license for use in any commercial application. See our licensing information.

Request your free trial

Downloading Micrium OS for Makers

Makers, educators, and hobbyists can use our commercial real-time operating system for free.

Apply for Micrium μC/OS for Makers

Companion Software for Micrium Books

Every Micrium book includes complete project files containing exercises and Micrium source code.

Download Companion Software

Micrium Documentation

Online Documentation for all Micrium Products

Application Notes

Browse Example Projects for µC/OS-II and µC/OS-III

Example projects allow you to get started quickly with Micrium’s classic RTOS components. Projects are available for a wide range of popular evaluation platforms.

Ports and Drivers Not Listed: If you are interested in a port or driver for a hardware platform that is not listed here, you can contact Micrium to inquire about the possibility of commissioning a custom port.

Browse by MCU Manufacturer

View a list of recently changed or uploaded files.