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| Last modified on Sat Jul 22 11:30:02 2023 UTC. | Improve this page |
The µOS++ IIIe (micro oh ɛs plus plus third edition) project is the third iteration of µOS++, a POSIX-like, portable, open source, royalty-free, multi-tasking real-time framework intended for 32/64-bits embedded applications, written in C++. The project is hosted on GitHub as micro-os-plus. It has a comprehensive User’s manual. The APIs are documented in the µOS++ reference.
The µOS++ IVe (micro oh ɛs plus plus fourth edition) project (affectionately called Yves, with the French pronunciation [iv], like in Yves Montand) is the next edition, modularised and with updated APIs. This is currently work in progress, with a tentative release date by the end of 2023.
POSIX++ is another point of view of the project; with most system APIs using the POSIX semantics, but being written in C++, the µOS++ APIs can also be seen as a C++ version of POSIX, thus the name POSIX++.
The µOS++ project can be considered from several points of view.
Although generally associated with its RTOS, µOS++ is actually a framework, a collection of APIs, components and technologies.
One of the main APIs is the µOS++ RTOS API, but applications based on µOS++ may run very well without a RTOS, or even use a different RTOS.
For a better portability, the entire framework is layered, the µOS++ RTOS API provides a common public interface to the applications, but the implementation is separate, it might be that of its own µOS++ RTOS reference implementation, but it may very well be another implementation, even a custom one specific to the application.
From an embedded system point of view, µOS++ provides the reference implementation for the scheduler and portable synchronisation objects (like mutex, semaphore, etc).
From a modular point of view, µOS++ is a collection of packages hosted on GitHub in two locations:
Unless otherwise mentioned, all µOS++ components are provided free of charge under the terms of the MIT License, with all rights reserved to Liviu Ionescu.
