The paper addresses the problem of loading and upgrading mechanisms for embedded and distributed systems. Such mechanisms for most of the large operating systems have been developed over the recent years. However, custom embedded systems usually lack a proper solution, mostly due to their hardware varieties. In this paper the object-oriented design is presented that allows for reliable software loading and upgrading for many architectures of embedded systems regardless of their complexity and computational power. The proposed solution was implemented and tested on the real platform and showed great robustness. The paper can be of interest for designers of embedded and distributed computer systems.
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