The Codesign of Embedded Systems

作者:Kumar, Sanjaya, M.D. (EDT)/ Klumar, Sanjaya

页数:304

出版时间:1995-11

价格:$ 371.77

isbn号码:9780792396369

具体描述

Current practice dictates the separation of the hardware and software development paths early in the design cycle. These paths remain independent with very little interaction occurring between them until system integration. In particular, hardware is often specified without fully appreciating the computational requirements of the software. Also, software development does not influence hardware development and does not track changes made during the hardware design phase. Thus, the ability to explore hardware/software tradeoffs is restricted, such as the movement of functionality from the software domain to the hardware domain (and vice-versa) or the modification of the hardware/software interface. As a result, problems that are encountered during system integration may require modification of the software and/or hardware, resulting in potentially significant cost increases and schedule overruns. To address the problems described above, a cooperative design approach, one that utilizes a unified view of hardware and software, is described. This approach is called hardware/software codesign. The Codesign of Embedded Systems develops several fundamental hardware/software codesign concepts and a methodology that supports them. A unified representation, referred to as a decomposition graph, is presented which can be used to describe hardware or software using either functional abstractions or data abstractions. Using a unified representation based on functional abstractions, an abstract hardware/software model has been implemented in a common simulation environment called ADEPT (Advanced Design Environment Prototyping Tool). This model permits early hardware/software evaluation and tradeoff exploration. Techniques have been developed which support the identification of software bottlenecks and the evaluation of design alternatives with respect to multiple metrics. The application of the model is demonstrated on several examples. A unified representation based on data abstractions is also explored. This work leads to investigations regarding the application of object-oriented techniques to hardware design. The Codesign of Embedded Systems: A Unified Hardware/Software Representation describes a novel approach to a topic of immense importance to CAD researchers and designers alike.

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这部作品的叙事张力实在令人叹为观止，作者对复杂人际关系的细腻刻画，简直就像是用显微镜观察微观世界的化学反应。故事的主线虽然看似平铺直叙，实则暗流涌动，每一个人物的动机都经过精心编排，使得整体的戏剧冲突自然而然地爆发出来。我尤其欣赏作者在环境描写上的功力，那些关于旧日时光和现代都市交织的场景，不仅仅是背景板，更像是角色内心世界的延伸，带着一种挥之不去的疏离感和怀旧气息。阅读过程中，我时常会停下来，反复琢磨某一个措辞的精妙之处，那种文字的质感和韵律感，仿佛触手可及。它不像某些畅销小说那样追求快速的情节推进，而是更注重氛围的营造和人物精神世界的挖掘，这使得每一次翻页都成为一种享受，一种对深度体验的期盼。这本书的价值，或许不在于它提供了多少明确的答案，而在于它提出了多少引人深思的问题，让读者在合上书本之后，仍能长时间沉浸于那种余韵之中，久久不能平静。

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这部作品带给我的阅读体验，更像是一场智力上的攀登。它对主题的深度挖掘，要求读者付出相应的认知努力，绝非轻松的消遣之作。作者对历史典故和学术理论的旁征博引，处理得相当自然，它们巧妙地嵌入情节中，成为推动人物思想发展的催化剂，而非生硬的知识点堆砌。我个人非常欣赏它那种知识分子式的严肃态度，它对“真理”的追寻，体现在每一个精妙的对话和场景转换之中。读完后，我感到自己的知识边界被轻轻推开了一小块，那种被拓展的愉悦感非常强烈。这本书的难度并非来自晦涩的文字，而是来自于其内在的逻辑密度和思想的厚度。它无疑是一部具有长期生命力的作品，值得被反复阅读，并随着读者自身阅历的增长，每次都能从中发掘出新的光芒和理解。

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