Evaluation of MPSoC Integration Approaches for an Existing Hardware Architecture

Abstract

The development of modern system-on-chip (SoC)-based embedded systems increasingly demands high computational performance and energy efficiency within limited physical, thermal, and power boundaries. As the functionality of a device expands, its existing computing architecture may reach the limits of scalability and maintainability. The same trend affects the SoC-based data processing module (DPM) of the target device in this work, whose current hardware platform is reaching its operational limits. Upgrading the DPM through the integration of a modern multiprocessor system-on-chip (MPSoC) represents a necessary step towards improved processing capability. The main objective of this thesis is to study and evaluate feasible methods for integrating an MPSoC into the DPM while maintaining compatibility with the existing system architecture. The two integration methods considered in this thesis are the employment of a pre-engineered system-on-module (SoM) built around the MPSoC and directly embedding the MPSoC onto the DPM circuit board. Potential solutions for the power architecture of each integration method are also proposed. The research applies a theoretical and comparative approach. The mechanical, electrical, and thermal characteristics of the DPM and SoM are examined to determine the integration criterion. Also, conceptual power architectures are developed for both integration methods based on the identified requirements. Part manufacturer documentation, component data sheets, and information from the target organisation provide the foundation for the integration evaluation, power performance estimation, and design feasibility. Despite the lack of prototype measurements, the analysis conducted in this thesis forms a baseline for practical implementation in subsequent development stages. Based on the results, both integration methods can achieve the desired performance improvement, but each presents distinct compromises in the design phase. This thesis concludes that a modular SoM-based approach is the most balanced choice for the DPM modernisation effort. The SoM approach offers faster development time with less risks, easier maintenance, and reduced costs. These benefits stem primarily from outsourcing critical design stages to the SoM manufacturer, utilisation of an evaluation platform with reference designs, the direct purchasing cost of the required parts, and synergy between engineering teams within the target company.