MeshNetics - 802.15.4 / ZigBee Wireless RF Modules
MeshNetics is a creator of easy-to-integrate 802.15.4 / ZigBee wireless RF modules and ZigBee PRO-certified mesh networking software, used by OEMs and system integrators to add wireless connectivity to their products and solutions. MeshNetics RF modules feature industry-leading range performance, long battery life and ultra-small footprint. They are designed for use in 868/915 MHz and 2.4 GHz frequency bands. MeshNetics is a single source of ZigBee modules, development tools, networking software, technical support, and design services.

Telelogic Modeling Community: Whitepapers - UML, C/C++, OO Programming

vendor    

Open Firmware Source
FirmWorks is the industry champion and leading provider of Open Firmware; they invented the technology, they lead the development of the IEEE 1275 standard, and their technology is field proven.
preview: http://www.firmworks.com  

core    

STM Free Microprocessor
STM is a 32-bit, 2-way superscalar RISC processor, designed in an HDL. It is a free hardware; get the source from here.
preview: http://www.asahi-net.or.jp