[/align] FreeRTOSTM is a portable, open source, royalty free, mini Real Time Kernel - a free to download and free to deploy RTOS that can be used in commercial applications without any requirement to expose your proprietary source code. Downloaded more than 77,500 times during 2008, FreeRTOS is the cross platform de facto standard for embedded microcontrollers.
Each official port includes a pre-configured example application demonstrating the kernel features, expediting learning, and permitting 'out of the box' development. Support is provided by an active user community. OpenRTOSTM is a commercially licensed and supported version of FreeRTOS that includes fully featured professional grade USB, file system and TCP/IP components. SafeRTOSTM is a SIL3 RTOS version that has been certified for use in safety critical applications. It is a functionally similar product for which complete IEC 61508 compliant development/safety lifecycle documentation is available (conformance certified by TÜV SÜD, including compiler verification evidence).