A Processor in Loop Test Method for Life Critical Systems

Aviation safety has come a long way in over one hundred years of implementation. Avionics industry is now a billion-dollar industry in its own right, and made safety a major selling point realizing that a poor safety record in the aviation industry is a threat to corporate survival. As a first step, an attempt is made to simulate developed safety critical control blocks within a specified simulation time. For this, the blocks developed will be utilized to test in Simulink environment. To be precise and efficacious, high-fidelity test scenarios are to be explored. Processor in the Loop (PIL) test method is used for checking the functional differences between the model and the generated and compiled object code to identify any potential deviations in the performance introduced by the compilation process.. This paper suggests a development workflow starting with a model created in Simulink and proceeding through generating verified and profiled code for the processor.