Design and implementation of a new bootloader approach for a satellite on-board computer

Two primary software components utilized in satellite computers are the flight software and the bootloader. The flight software stands out as the core software responsible for executing various tasks throughout a satellite's lifespan and overseeing critical functionalities. Conversely, the bootloader is designed to engage every time the computer starts up, facilitating the transition of control to the flight software. This study intricately explores a novel approach to bootloader systems in satellite flight systems, distinct from conventional booting methods. This approach is designed to diverge from current standards and encompasses software strategies tailored to effectively meet the requirements of satellite systems. The bootloader, the initial program activated within the satellite's computer, assumes a critical role in identifying and rectifying potential errors before initiating the flight software. Additionally, the goal is to craft a bootloader design with high reliability and error tolerance, considering various demanding factors in the space environment. Notably, a focal point of this study is the capability of updating the flight software through the bootloader, specifically to rectify software errors that may arise during the satellite's orbital phase. This approach aims to present an alternative solution to current software update methods. This study describes the step-by-step development process of a new bootloader software approach for satellite computers. This detailed process ensures the more reliable, efficient, and effective operation of satellite systems. Furthermore, the methodology and findings of this research can provide guidance for similar projects. The comprehensive nature of this approach is deemed to have significant potential in advancing satellite systems and making a noteworthy contribution to academic literature.