The rising complexity of communication protocols forces designers to work with efficient high level software design tools to increase the level of abstraction at which they work. For the purposes of the software development of a DECT/GSM protocol implementation for an embedded system a novel SDL based framework was followed. The embedded real time system on chip is based on a multiprocessor architecture, featuring an ARM and a DSP core. Complete system's architecture is presented along with the architecture of the software parts. Final protocol stack code was automatically generated from the SDL tool. A new advanced RTOS-SDL integration method was utilised to integrate the generated code with the functions and services of the RTOS. The results of this integration method were quite promising and the produced system met the initial specifications within the development time limits.
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