RTEMS is a real-time executive (kernel) which provides a high performance environment for embedded applications with the following features:

• Standards based user interfaces.
• Multitasking capabilities.
• Homogeneous and heterogeneous multiprocessor systems.
• Event-driven, priority-based, preemptive scheduling.
• Optional rate monotonic scheduling.
• Intertask communication and synchronisation.
• Priority inheritance.
• Responsive interrupt management.
• Dynamic memory allocation.
• High level of user configurability.
• Open source with a friendly user license.

Project git repositories are located at:

• https://gitlab.rtems.org/rtems/

Online documentation is available at:

• https://docs.rtems.org/

RTEMS Doxygen for CPUKit:

• https://docs.rtems.org/doxygen/branches/master/

RTEMS POSIX 1003.1 Compliance Guide:

• https://docs.rtems.org/branches/master/posix-compliance/

RTEMS Mailing Lists for general purpose use the users list and for developers use the devel list.

• https://lists.rtems.org/mailman/listinfo

The version number for this software is indicated in the VERSION file.