By Vijay Madisetti, Chonlameth Arpnikanondt
The platform-centric SoC strategy is aimed toward the layout of today’s SoC platforms with emphasis on real-time, embedded platforms. The technique presents a suggestion and an SoC layout setting that promotes an integration of state of the art instruments and methods useful for the improvement of the platforms. It renders a brand new and higher standpoint in the direction of co-design methods, whereas additionally elevating a degree of layout abstraction. as the configurable platform items are designed off-cycle, they give a contribution to a basic development in improvement time. through incorporating their utilization, the general process 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 brief describes the technical demanding situations dealing with procedure builders and introduces a proposed strategy to the matter. the rest of this publication provides a extra thorough exam at the challenge and the proposed approach.
Chapter 2 describes the proposed platform-centric SoC layout approach intimately. It illustrates the layout circulation and discusses every one major step within the layout strategy. 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 via evaluating the proposed technique with prior comparable work.
Chapter three lays out the technological history for the proposed SoC layout technique. while the platform know-how is mentioned in bankruptcy 2, this bankruptcy offers 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 software rather well perceived in the software program engineering neighborhood. it really is by way of a dialogue on an test by means of the item administration crew (OMG) to empower UML for the advance of real-time embedded software program – an attempt with a view to finally culminate in a layout framework often called the UML Profile for Schedulability, functionality, and Time Specification . Thereafter, an outline of XML and some different comparable net applied sciences ensue.
Chapter four outlines the constitution of the library of platform gadgets (LPO), in addition to furnishes a finished instruction and standards specification platform item needs to own with a view to be scalable and appropriate with the proposed procedure. crucial parts for every platform item, e.g. structure blueprint, XML-based self-described modules, platform coping with instrument, etc., also are mentioned intimately.
Chapter five offers a close remedy of UML extensions for the improvement of real-time embedded structures. The bankruptcy starts off with a format of the Co-design Modeling Framework (CMF) hierarchy that encompasses 5 different sub-profiles – the well-known software 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 technique, and will have the ability to meet with the demanding situations posed by way of the layout and try of real-time embedded SoC-based platforms. 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 procedure, utilizing the CMF profile in UML, to the advance of a simplified digicam procedure for you to exhibit the use and the robustness of the proposed technique. particularly, the NiOS improvement board is used to imitate the digicam process the place uncooked photo info are learn from a charge-coupled machine (CCD), after which JPEG encoded and kept into reminiscence. The bankruptcy starts with an outline of the Altera’s NiOS process, through the particular procedure improvement procedure that explicitly demonstrates using the proposed method. A quantitative overview is then offered that compares the improvement price of the proposed platform-centric SoC layout strategy opposed to a few substitute techniques utilizing expense estimation types and tools.
Chapter 7 concludes the e-book 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
It is followed by a discussion on an attempt by the Object Management Group (OMG) to empower UML for the development of real-time embedded software—an effort which will eventually culminate to a design framework known as the UML Profile for Schedulability, Performance, and Time Specification . Thereafter, an overview of XML and a few other related Internet technologies ensue. Chapter 4 outlines the structure of the library of platform objects (LPO), as well as furnishes a comprehensive guideline and requirements specification that a platform object must possess in order to be scalable and compatible with the proposed approach.
Because an evaluation of an OCL expression is instantaneous, it never alters the state of the system. 2 demonstrates the use of UML constraints and OCL expressions. 2 Tagged Values To avoid inundating UML models with an excessive number of graphical notations that often result in developmental ineffectiveness, detailed UML element properties may be captured using such mechanisms as attributes, associations and tagged values. A tagged value is a keyword-value pair of type String (in the UML specification, a keyword is actually called a tag) that permits arbitrary information to be attached to any kind of model element so as to provide semantic guidance for back-end tools such as code generators, and report writers , to name a few.
Nevertheless, the approach has some limitations: The approach does not explicitly specify the synthesis process. Lack of support for translation process and tools makes it insufficient to handle the requirements of systems today. There is no real-time handling mechanism, nor the capability to capture customer requirements. The POLIS  co-design method addresses the issues of unbiased specification and efficient automated synthesis through the use of a unified framework, with a unified hardware-software representation.