By Vijay Madisetti, Chonlameth Arpnikanondt
The platform-centric SoC procedure is geared toward the layout of today’s SoC structures with emphasis on real-time, embedded structures. The technique offers a tenet and an SoC layout setting that promotes an integration of cutting-edge instruments and strategies useful for the advance of the platforms. It renders a brand new and higher viewpoint in the direction of co-design ways, whereas additionally elevating a degree of layout abstraction. as the configurable platform gadgets are designed off-cycle, they give a contribution to a basic development in improvement time. through incorporating their utilization, the final strategy moves a stability among overall layout flexibility and minimum time-to-market.
In bankruptcy 1, demanding situations within the co-design of SoCs are brought. The bankruptcy in short describes the technical demanding situations dealing with approach builders and introduces a proposed way to the matter. the rest of this e-book provides a extra thorough exam at the challenge and the proposed approach.
Chapter 2 describes the proposed platform-centric SoC layout process intimately. It illustrates the layout movement and discusses every one major step within the layout technique. Definition of a platform as initially outlined via Sabbagh , in addition to the platform-based and platform-centric layout ways, are awarded. The bankruptcy concludes by means of evaluating the proposed technique with prior comparable work.
Chapter three lays out the technological history for the proposed SoC layout process. while the platform know-how is mentioned in bankruptcy 2, this bankruptcy provides an summary of the opposite primary applied sciences: the Unified Modeling Language (UML) and the Extensible Markup Language (XML). The bankruptcy starts off with an advent to UML as a modeling device rather well perceived in the software program engineering neighborhood. it truly is by way of a dialogue on an test through the article administration team (OMG) to empower UML for the advance of real-time embedded software program – an attempt to be able to ultimately culminate in a layout framework often called the UML Profile for Schedulability, functionality, and Time Specification . Thereafter, an outline of XML and some different similar web applied sciences ensue.
Chapter four outlines the constitution of the library of platform gadgets (LPO), in addition to furnishes a accomplished instruction and specifications specification platform item needs to own so as to be scalable and appropriate with the proposed procedure. crucial components for every platform item, e.g. structure blueprint, XML-based self-described modules, platform dealing with software, etc., also are mentioned intimately.
Chapter five offers a close therapy of UML extensions for the advance of real-time embedded structures. The bankruptcy starts off with a structure of the Co-design Modeling Framework (CMF) hierarchy that encompasses 5 different sub-profiles – the standard application profile (PCUprofile), the Exception Modeling profile (EMprofile), the Interrupt Modeling profile (IMprofile), the Synthesizable Description Language profile (SHDLprofile), and the structure Blueprint profile (ABprofile). every one of those profiles furnishes a layout framework that's particularly adapted for the proposed method, and should have the ability to meet with the demanding situations posed by means of the layout and try out of real-time embedded SoC-based structures. The bankruptcy, then, proceeds to debate the area idea for every sub-profile, through the outline of the corresponding stereotypes.
Chapter 6 applies the platform-centric SoC layout process, utilizing the CMF profile in UML, to the improvement of a simplified digicam method on the way to reveal the use and the robustness of the proposed strategy. in particular, the NiOS improvement board is used to imitate the digicam procedure the place uncooked picture info are learn from a charge-coupled equipment (CCD), after which JPEG encoded and saved into reminiscence. The bankruptcy starts with an summary of the Altera’s NiOS procedure, through the particular approach improvement strategy that explicitly demonstrates using the proposed strategy. A quantitative evaluate is then awarded that compares the improvement fee of the proposed platform-centric SoC layout approach opposed to a few replacement techniques utilizing rate estimation versions and tools.
Chapter 7 concludes the publication with a precis and a dialogue of destiny instructions for this attempt on platform-based layout.
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Additional resources for A Platform-Centric Approach to System-on-Chip (SOC) Design
The UML real-time profile’s general resource model deals specifically with various aspects of resources modeling in the real-time domain. It details a comprehensive treatment on resources-sharing where mechanisms for modeling activeness and protection are defined. Services as provided by the resources are either exclusive or non-exclusive, with various quality of service (QoS) characteristics imposed upon them. The time model described in the RTtimeModeling profile is a specialized resource model, and thus, naturally inherits all the rudimentary concept defined in the RTresourceModeling package.
Yet another fundamental difference between the two profiles exists that possibly comes as a consequence of discrepancy in the viewpoint towards how each of them should be conceived. Just like Vissers , many propose that semiconductor systems manufacturers & integrators will design systems, as opposed to designing processors for the short term, though it may be to their advantage Platform-Centric SoC Design Methodology 37 in the longer term to design their own processors. The proposed UML profile for Co-design Modeling Framework is flexible to meet with new demands from these organizations as they adapt to new technologies and business models.
INTRODUCTION This chapter presents an introduction to the Unified Modeling Language (UML) and the Extensible Markup Language (XML) technologies that provide the foundation of the proposed Platform-Centric SoC design methodology. To begin, the chapter explains the UML and its various features, as traditionally used within the software engineering community where UML is originated. It also discusses UML usage scenarios, extensibility mechanisms and possible mappings of UML notations to other programming languages such as Java, and C/C++.