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|Company / developer||RoweBots|
|OS family||Embedded Linux compatible, Real-time operating systems|
|Source model||Shared source|
|Marketing target||Embedded high performance real-time DSCs and DSPs|
|Supported platforms||Microchip PIC microcontroller, Renesas M16C, ARM|
DSPnano is an embedded real-time operating system (RTOS) which is compatible with POSIX and embedded Linux. It was first created in 1996 and was one of the first pthread based real-time kernels. Its entire focus was on tiny real-time digital signal processing systems and has been optimized to deliver high performance DSP on embedded digital signal controllers and digital signal processors . Its parent was the Unison Operating System.
Today DSPnano claims full POSIX capabilities for threads, communication, synchronization and I/O. A full complement of I/O is included as is a full complement of DSP optimized features including: DSP libraries, fix size buffer management, software pipelines and more. It has also been moved to FPGA platforms to accelerate DSP applications.
While RoweBots claims that DSPnano is an open source product, its license is not certified by the Open Source Initiative and the license agreement explicitly prohibits redistribution of the source code. 
- "Licensing". Published by RoweBots Research Inc. Retrieved 2013-12-06.