The XC620ODS development system

Nisbet, Stuart; Guccione, Steven A.

doi:10.1007/3-540-63465-7_211

Cited by 11 publications

(4 citation statements)

References 9 publications

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“…Furthermore, there are two banks of memory included, which can be accessed from both the DPGA and the PCI bus. For a more detailed discussion of this hardware extension see [10]. The most prominent feature of this DPGA is its microprocessor interface.…”

Section: Target Platformmentioning

confidence: 99%

Java driven codesign and prototyping of networked embedded systems

Fleischmann

Buchenrieder

Kress

1999

Proceedings of the 36th Annual ACM/IEEE Design Automation Conference

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While the number of embedded systems in consumer electronics is growing dramatically, several trends can be observed which challenge traditional codesign practice: An increasing share of functionality of such systems is implemented in software; flexibility or reconfigurability is added to the list of non-functional requirements. Moreover, networked embedded systems are equipped with communication capabilities and can be controlled over networks. In this paper, we present a suitable methodology and a set of tools targeting these novel requirements. JACOP is a codesign environment based on Java and supports specification, co-synthesis and prototyping of networked embedded systems. IntroductionThe rapidly growing market for web-enabled consumer electronic devices introduces a paradigm shift in embedded system design.Traditionally, embedded systems have been designed to perform a fixed set of previously specified functions within a well-known operating environment. After shipment, the functionality of the embedded system remains unchanged during product lifetime. However, with shorter time-to-market windows and increasing product functionality this design philosophy has exhibited its shortcomings. Hardware/software codesign tools are increasingly used to alleviate some of the problems in the design of complex heterogeneous systems. But the key features of next-generation embedded devices will be the capability to communicate over networks and to adapt to different operating environments. There is an emerging class of systems which concurrently execute multiple applications, such as processing audio streams, capturing video data and web browsing. This systems need to be adaptive to changing operating conditions. For instance, in multimedia applications the video frame rate has to be adjusted depending on network congestion. Likewise, for audio streams different compression techniques are applied depending on network load. Besides this class of multi-function systems there are multi-mode systems, i.e. systems which know several alternative modes of operation, for example a mobile phone which is able to switch between different communication protocols or a transmitter which can toggle between different encryption standards. This paradigm shift in functional and non-functional requirements of embedded appliances not only holds for consumer devices. In industrial automation there is a growing demand for sensor and actuator devices which can be remotely controlled and maintained via Internet.Several system-level design languages and codesign frameworks have been proposed by researchers and are gaining acceptance in industry. But there is a lack of methods and tools to investigate issues which are raised when designing runtime-reconfigurable hardware/software systems. Our goal is to develop a complete design environment for embedded systems which include dynamically reconfigurable hardware components. JACOP (Java driven codesign and prototyping environment) is based on Java which is used for specification and initial profil...

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Section: Target Platformmentioning

confidence: 99%

Java driven codesign and prototyping of networked embedded systems

Fleischmann

Buchenrieder

Kress

1999

Proceedings of the 36th Annual ACM/IEEE Design Automation Conference

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“…Therefore, it is implemented on a PC-based Xilinx 6200 DS board [8] using a partially reconfigurable XC6216 FPGA. The program, shown in Fig.…”

Section: A String Pattern Matchermentioning

confidence: 99%

“…It is particularly suited for reconfigurable systems, which have been shown to be useful in various application domains [6]. We attempt to simplify the programming of these systems, which typically consist of a host processor and FPGA hardware boards [7], [8]. Programming difficulties include analyzing the tradeoffs between software and hardware, designing software and hardware parts using different languages and tools and debugging the interface between these parts.…”

Section: Introductionmentioning

confidence: 99%

Pipeline vectorization

Weinhardt

Luk

2001

IEEE Trans. Comput.-Aided Des. Integr. Circuits Syst.

113

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Abstract-This paper presents pipeline vectorization, a method for synthesizing hardware pipelines based on software vectorizing compilers. The method improves efficiency and ease of development of hardware designs, particularly for users with little electronics design experience. We propose several loop transformations to customize pipelines to meet hardware resource constraints while maximizing available parallelism. For runtime reconfigurable systems, we apply hardware specialization to increase circuit utilization. Our approach is especially effective for highly repetitive computations in digital signal processor (DSP) and multimedia applications. Case studies using field programmable gate arrays (FPGAs)-based platforms are presented to demonstrate the benefits of our approach and to evaluate tradeoffs between alternative implementations. For instance, the loop-tiling transformation, has been found to improve vectorization performance 30-40 times above a PC-based software implementation, depending on whether runtime reconfiguration (RTR) is used.

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“…The card also includes two banks of memory, which may be accessed from either the FPGA or the PCI bus. For a more detailed description see [8].…”

Section: Resultsmentioning

confidence: 99%

A hardware/software prototyping environment for dynamically reconfigurable embedded systems

Fleischmann¹,

Buchenrieder²,

Kress³

Proceedings of the Sixth International Workshop on Hardware/Software Codesign. (CODES/CASHE'98)

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Next generation embedded systems place new demands on an efficient methodology for their design and verification. These systems have to support interaction over a network, multiple concurrent applications and changing operating conditions. Therefore, besides existing requirements like low cost and high performance, new demands like adaptivity and reconfigurability arise. Traditional design methodologies do not support exploration and implementation of this flavor of networked embedded systems. In this paper, we present a suitable methodology and a flexible experimental environment which supports design exploration and prototyping of dynamically reconfigurable embedded systems based on Java specifications.

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The XC620ODS development system

Cited by 11 publications

References 9 publications

Java driven codesign and prototyping of networked embedded systems

Java driven codesign and prototyping of networked embedded systems

Pipeline vectorization

A hardware/software prototyping environment for dynamically reconfigurable embedded systems

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