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Journal Articles Microprocessors and Microsystems: Embedded Hardware Design Year : 2013

Decentralized control for dynamically reconfigurable FPGA systems

Abstract

The progress in FPGA technology has enabled FPGA-based reconfigurable systems to target increasingly sophisticated applications, which has led to a high control design complexity, resulting in longer design cycles. In this paper, we propose a control design approach for FPGA-based reconfigurable systems aiming at increasing design productivity. This approach is based on a semi-distributed control model that splits different control concerns (monitoring, decision-making and reconfiguration) between autonomous modular controllers and makes use of formalism-oriented design, to decrease the control design complexity and facilitate design verification, reuse and scalability. This model is composed of distributed controllers handling the self-adaptivity of the system reconfigurable regions and a coordinator to respect the system global constraints. To enhance design productivity, the proposed control model is generated automatically using a high-level modeling approach. This approach is based on MDE (Model-Driven Engineering) and the MARTE (Modeling and Analysis of Real-Time and Embedded Systems) standard, allowing to make low-level technical details transparent to designers and to automate code generation from high-level models. Experiments on the generated control systems showed that the proposed semi-distributed control model is more flexible, reusable and scalable than the centralized one, at the cost of a slight increase in required hardware resources.

Dates and versions

hal-00922290 , version 1 (25-12-2013)

Identifiers

Cite

Samy Meftali, Jean-Luc Dekeyser, Chiraz Trabelsi. Decentralized control for dynamically reconfigurable FPGA systems. Microprocessors and Microsystems: Embedded Hardware Design , 2013, 37 (8), pp.871-884. ⟨10.1016/j.micpro.2013.04.012⟩. ⟨hal-00922290⟩
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