By Vijay Madisetti, Chonlameth Arpnikanondt
The platform-centric SoC technique is aimed toward the layout of today’s SoC structures with emphasis on real-time, embedded platforms. The method presents a tenet and an SoC layout setting that promotes an integration of state of the art instruments and methods precious for the advance of the structures. It renders a brand new and higher viewpoint 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 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 process builders and introduces a proposed method to the matter. the rest of this booklet 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 each one major step within the layout approach. Definition of a platform as initially outlined through Sabbagh , in addition to the platform-based and platform-centric layout ways, are offered. The bankruptcy concludes by way of evaluating the proposed method with earlier comparable work.
Chapter three lays out the technological heritage for the proposed SoC layout procedure. while the platform expertise is mentioned in bankruptcy 2, this bankruptcy supplies an outline of the opposite basic applied sciences: the Unified Modeling Language (UML) and the Extensible Markup Language (XML). The bankruptcy starts off with an creation to UML as a modeling device rather well perceived in the software program engineering neighborhood. it really is by way of a dialogue on an try by means of the article administration workforce (OMG) to empower UML for the improvement of real-time embedded software program – an attempt to be able to finally culminate in a layout framework referred to as the UML Profile for Schedulability, functionality, and Time Specification . Thereafter, an summary of XML and some different comparable web applied sciences ensue.
Chapter four outlines the constitution of the library of platform gadgets (LPO), in addition to furnishes a finished guide and specifications specification platform item needs to own with a purpose to be scalable and appropriate with the proposed strategy. crucial components for every platform item, e.g. structure blueprint, XML-based self-described modules, platform handling device, etc., also are mentioned intimately.
Chapter five offers an in depth therapy of UML extensions for the advance of real-time embedded platforms. The bankruptcy starts off with a structure of the Co-design Modeling Framework (CMF) hierarchy that encompasses 5 different sub-profiles – the wide-spread 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 in particular adapted for the proposed process, and should have the ability to meet with the demanding situations posed by means of the layout and try of real-time embedded SoC-based structures. The bankruptcy, then, proceeds to debate the area thought for every sub-profile, by means of the outline of the corresponding stereotypes.
Chapter 6 applies the platform-centric SoC layout procedure, utilizing the CMF profile in UML, to the improvement of a simplified camera method on the way to exhibit the use and the robustness of the proposed technique. in particular, the NiOS improvement board is used to imitate the camera approach the place uncooked snapshot info are learn from a charge-coupled machine (CCD), after which JPEG encoded and kept into reminiscence. The bankruptcy starts off with an outline of the Altera’s NiOS approach, by means of the particular procedure improvement technique that explicitly demonstrates using the proposed method. A quantitative evaluate is then provided that compares the improvement fee of the proposed platform-centric SoC layout technique opposed to a few substitute methods utilizing expense estimation types 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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Extra resources for A Platform-Centric Approach to System-on-Chip (SOC) Design
TI’s OMAP architecture blueprint which (a) depicts the abstract representation of the platform architecture, and is used by Pomm suppliers as a reference model, and by the developer to construct the target architecture (b). Each link in the object diagram (b) represents a pre-defined communication. The DRAM object comes as a derivative requirement when instantiating the LCD controller Pomm module (c) 28 Platform-Centric SoC Design Methodology The resulting functional specification can have the class methods implemented using a programming language of choice.
This section introduces the platform concept. 1 Introduction to Platforms Karl Sabbagh of Boeing Corporation first defined platforms as fullyfunctional families of products, each of which is characterized by a set of commonalities, and is specified and implemented in such a way that allows itself and its capabilities to be further customized and re-targeted for specific actual end products. Examples of platforms are abundant, across diversely different application areas, ranging from aircraft to mobile phones.
It is a unified language, IP-centric approach aimed at easing the problems caused by heterogeneous design. The SpecC language can be employed to describe both hardware and software behaviors until the designer attains the feasible implementation model later on in the design process, hence, promoting an unbiased hardware/software partitioning for the system under development. The formalism of the SpecC language allows for efficient synthesis. SpecC provides support for exceptions handling mechanism, and is capable of capturing information about timing constraints explicitly within its constructs.