PLAnetary Transits and Oscillations of Stars (PLATO), the third medium-class mission of the European Space Agency’s (ESA) Cosmic Vision program, is foreseen for launch in 2026 and stands out with its distinctive approach to exoplanet exploration [1]. The core of PLATO’s On-Board Data Processing System (DPS) is a crafted architecture that encompasses various components, including an Instrument Control Unit (ICU) and 12+2 Digital Processing Units (DPUs). These elements are interconnected through a SpaceWire network, which includes 6 routers. This network serves as a backbone for seamless communication among the different components of the Payload. The Application Software (ASW) of the Instrument Control Unit (ICU) plays a crucial role in the PLATO system’s operations. It takes over once the system has booted, the ASW is integral to overseeing critical functions essential for mission success. Its primary responsibilities encompass executing the day-to-day operations of the satellite. This includes managing data transmission, which involves both the collection and processing of data. The software adeptly handles ongoing tasks, adapts to different modes, and facilitates communication with ground control stations. Additionally, the ASW is responsible for configuring parameters for the Data Processing Unit (DPU), monitoring the Failure Detection, Isolation, and Recovery (FDIR) process and SW, conducting image stacking, and efficiently managing hardware compression. Remarkably, the ASW demonstrates its effectiveness by efficiently managing a daily data volume of 435 Gb on ground. On the other hand, the PLATO Boot Software (BSW) holds paramount importance in the mission, distinguished by its low complexity. The BSW ensures the integrity of the system startup process. It plays a fundamental role in the startup and maintenance operations of the ICU, engaging in essential tasks like board diagnostics and the initiation of the ASW. Its significance extends to crucial responsibil...