Ensuring I2C Bus Reliability in Nanosatellite Operations Fault Analysis and Mitigation Strategies

Despite being widely used in nanosatellite operations, the I2C bus has dependability issues that can result in catastrophic failures. In the framework of CubeSat missions, this study performs an extensive fault analysis of the I2C bus, looking into necessary hardware and software, important failure reasons, and possible mitigation techniques. To gain a comprehensive understanding of I2C bus characteristics, failure modes, and operational requirements, experimental testing is used. This work presents checksum strategies to improve data integrity and reliability during I2C bus transactions in addition to conventional fault analysis techniques. Checksums are incorporated into the communication protocol to greatly increase data transfer dependability and lower the chance of mission-critical failures. Through qualitative risk analysis, the suggested mitigation strategies are assessed, emphasizing their influence on the overall mission success and CubeSat health. This study emphasizes how important it is to take into account both runtime fault management and strong design considerations while reducing I2C bus vulnerabilities to maintain operational reliability for nanosatellite missions.