Article · Wikipedia archive · Last revised Aug 11, 2026

XMK (operating system)

The eXtreme Minimal Kernel (XMK) is a real-time operating system (RTOS) that is designed for minimal RAM/ROM use. It achieves this goal, though it is almost entirely written in the C programming language. As a consequence it can be easily ported to any 8-, 16-, or 32-bit microcontroller.

Last revised
Aug 11, 2026
Read time
≈ 1 min
Length
146 w
Citations
1
Source
XMK
DeveloperShift-Right Technologies
Written inC
OS familyReal-time operating systems
Official websitewww.integerfox.com/xmk/

The eXtreme Minimal Kernel (XMK) is a real-time operating system (RTOS) that is designed for minimal RAM/ROM use.1 It achieves this goal, though it is almost entirely written in the C programming language. As a consequence it can be easily ported to any 8-, 16-, or 32-bit microcontroller.

XMK comes as two independent packages: the XMK Scheduler that contains the core kernel, everything necessary to run a multithreaded embedded application, and the Application Programming Layer (APL) that provides higher level functions atop the XMK Scheduler API.

The XMK distribution contains no standard libraries such as libc that should be part of the development tools for target systems.

References

References

  1. "eXtreme Minimal Kernel". integerfox,com. Retrieved August 9, 2026.
External links