FreeRTOS.org

Real-Time OS/Kernels

FreeRTOS is a portable, open source, mini Real Time Kernel - a free RTOS. This site shows how a complete embedded real time system can be created from a Windows host using quality open source development tools (where available). Features include:

Free RTOS kernel
Free development tools (ARM7, MSP430, AMD, AVR and 8051 ports)
Free source code
No royalties
Sample pre-configured complete embedded real time solutions
Cross development from a standard Windows host
Demo applications for selected single board computers