ALTEN Technology undertook a significant project in commercial aviation, developing a sophisticated FPGA-based system controller for an aircraft electric starter generator. This complex endeavor involved assembling a dedicated team with aviation engineering expertise and adhering to a rigorous, multiphase project structure compliant with DO-254 DAL A certification standards. ALTEN Technology collaborated closely with the client on-site to define requirements and set up comprehensive system and engine tests, coordinating independent verification engineering throughout the process. The successful outcome included the delivery of all necessary DO-254 planning documents, validation of over 1,000 FPGA requirements, and the conversion of advanced floating-point algorithms into fixed-point FPGA code. Key achievements also encompassed the development of VHDL code for external system communication and, critically, obtaining FAA certification for the electric starter generator, enabling its use across a broad range of commercial and military aircraft. The project leveraged essential tools and technologies such as VHDL, Hardware-in-the-Loop (HIL) testing, dynamometer-based system testing, and aircraft communication protocols like ARINC 429 and MIL-STD 1553, alongside Simulink.