Transitioning to DO-178C for UAV software development using model design

With the FAA and EASA adopting aviation standards such as DO-178C and ARP4754A, UAV software developers should familiarize themselves with these standards, particularly when transitioning to model-based design.
Few applications place more importance on verification, or prescribe more process guidance, than aviation. The FAA and its European equivalent, EASA, provide guidance using standards such as ARP4754 for aircraft systems and DO-178B for flight software. These standards are often used outside of civil aviation, in whole or in part, for applications including military aircraft and land vehicles. Adoption for UAV programs is rapidly growing because of the FAA’s recent decision to require UAS and OPA certification via FAA Order 8130.34A. UAV systems are heterogeneous, and not restricted just to flight software. Therefore, other standards are used such as DO-254 for hardware and DO-278 for ground and space software.

With model-based design, UAV engineers develop and simulate system models comprised of hardware and software using block diagrams and state charts, as shown in Figures 1 and 2. They then automatically generate, deploy, and verify code on their embedded systems. With textual computation languages and block diagram model tools, one can generate code in C, C++, Verilog, and VHDL languages, enabling implementation on MCU, DSP[], FPGA[], and ASIC hardware. This lets system, software, and hardware engineers collaborate using the same tools and environment to develop, implement, and verify systems. Given their auto-nomous nature, UAV systems heavily employ closed-loop controls, making system modeling and closed-loop simulation, as shown in Figures 1 and 2, a natural fit.

refer to:
http://mil-embedded.com/articles/transitioning-do-178c-arp4754a-uav-using-model-based-design/