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Myriad 2 is a Commercial Off-The-Shelf (COTS) processor that offers high-performance within a low power and thermal envelope, making it ideal for CubeSat missions with limited in-situ resources. However, the deployment of a COTS component for spaceflight applications requires thorough testing and development to ensure its suitability for the in-space environment and operational conditions.
As part of a de-risk GSTP Element 2 funded activity, the Myriad 2 was further characterised to support its hardware and software integration in a payload computing solution for spaceflight applications. A suite of test software was developed to analyse the Myriad 2's memory, hardware filters, vector engines, interfaces, and interface modules. The processor's susceptibility to single-event upsets (SEUs), single-event latching (SEL), and total ionizing dose (TID) was also tested through a series of proton radiation tests. The results indicated that the device was suitable for missions in Low Earth Orbit (LEO), paving the way for hardware and software enhancements to the CogniSat-XE1 Myriad 2 Computer Vision (CV) and AI space-grade payload processing board.