A Dual Spring System Case-Study Model in Rosetta

Abstract Introduction Rosetta [1,2,3] is a system-level design language, being developed by two of the authors, Alexander and Barton, as part of the SLDL Initiative [4] currently sponsored by Accellera (formerly VHDL International) and ECSI. The SLDL Initiative was originally sponsored by the EDA Industry Council, and moved under the auspices of VI and ECSI in 1999. Rosetta addresses a need for a language in which designers can specify the requirements and constraints on a system that spans multiple design domains. Requirements describe functional behaviour that a system must exhibit, and constraints describe operational bounds within which the system must remain. The different design domains include digital and analogue electronic subsystems, and the mechanical, optical, fluidic and thermal subsystems with which they interact. Various computational models are most appropriate to describe aspects of systems in different domains. Example computational models include finite and infinite state-based, discrete event, discrete time, and continuous time. The Rosetta language is extensible to allow designs to be expressed using each of these computational models, and to allow expression of the interactions between descriptions in each computational model. The language achieves this extensibility be being based on a formal semantic underpinning and by including facilities for reflection. In combination, these features allow definition of syntax and semantics of new Rosetta domains for expressing requirements and constraints using different computational models. This paper describes a model of a dualspring mechanical system, developed as a design case study in Rosetta. The design was originally specified informally using a combination of English language and mathematical equations. The information in this specification formed the basis of a Rosetta specification, in which the requirements and constraints are expressed formally in a manner that is amenable to analysis and computation. The model is expressed in the logic domain in terms of continuous mathematical equations that describe the mechanical system

SystemC Model of Hierarchical Network-on-Chip for System-Level On-Chip Multi-Core Platform

System-Level Modeling is one of the key tools to speed up the process of design space exploration. Open source system level design tool is the solution for SMEs to get maximum benefit out of system level modeling in affordable range. SystemC is a C++ library extension that is used for open source system level modeling. In this thesis, a NoC based on hierarchical NoC for Ninesilica is modeled using SystemC. The Ninesilica multi-core platform that is developed at Department of Computer System in Tampere University of Technology. The system level NoC model is able to simulate the communication network with several number of nodes and data packets. The modeled NoC is able to give useful information regarding to delay, data packet buffering and number of clock cycles required to transfer all the data packets. The user can also be able to get information about the position of any data packet at any clock cycle in the network. The behavior of the communication network is analyzed with different number of nodes and several network configurations. The data load is also varied in order to verify that the NoC model is working properly. The NoC model successfully completed all the tests and gives the results as expected. The NoC model is able to buffer, transmit, and receive data packets without any loss of data packets. The NoC model can be configured and re-configured. The simulation results are written to a text file. Several comparisons between different network topologies with variable data load is also made and some conclusions based on those results are made. /Kir1

Analog System-on-a-Chip with Application to Biosensors

This dissertation facilitates the design and fabrication of analog systems-on-a-chip (SoCs). In this work an analog SoC is developed with application to organic fluid analysis. The device contains a built-in self-test method for performing on-chip analysis of analog macros. The analog system-on-a-chip developed in this dissertation can be used to evaluate the properties of fluids for medical diagnoses. The research herein described covers the development of: analog SoC models, an improved set of chemical sensor arrays, a self-contained system-on-a-chip for the determination of fluid properties, and a method of performing on-chip testing of analog SoC sub-blocks

A Compositional Approach to Embedded System Design

An important observable trend in embedded system design is the growing system complexity. Besides the sheer increase of functionality, the growing complexity has another dimension which is the resulting heterogeneity with respect to the different functions and components of an embedded system. This means that functions from different application domains are tightly coupled in a single embedded system. It is established industry practice that specialized specification languages and design environments are used in each application domain. The resulting heterogeneity of the specification is increased even further by reused components (legacy code, IP). Since there is little hope that a single suitable language will replace this heterogeneous set of languages, multi-language design is becoming increasingly important for complex embedded systems. The key problems in the context of multi-language design are the safe integration of the differently specified subsystems and the optimized implementation of the whole system. Both require the reliable validation of the system function as well as of the non-functional system properties. Current cosimulation-based approaches are well suited for functional validation and debugging. However, these approaches are less powerful for the validation of non-functional system properties. In this dissertation, a novel compositional approach to embedded system design is presented which augments existing cosimulation-based design flows with formal analysis capabilities regarding non-functional system properties such as timing or power consumption. Starting from a truly multi-language specification, the system is transformed into an abstract internal design representation which serves as basis for system-wide analysis and optimization.Ein wesentlicher Trend im Entwurf eingebetteter Systeme ist die steigende Komplexität der zu entwerfenden Systeme. Neben der zunehmenden Funktionalität hat die steigende Komplexität eine weitere Dimension: die resultierende Heterogenität bezüglich der verschiedenen Funktionen und Komponenten eines eingebetteten Systems. Dies bedeutet, daß Funktionen aus verschiedenen Anwendungsbereichen in einem einzelnen System eng miteinander kooperieren. Es ist in der industriellen Praxis etabliert, daß in jedem Anwendungsbereich spezialisierte Spezifikationssprachen zum Einsatz kommen. Da wenig Hoffnung besteht, daß eine einzige geeignete Sprache diesen heterogenen Mix von Sprachen ersetzen wird, gewinnt der mehrsprachige Entwurf für komplexe eingebettete Systeme an Bedeutung. Die Hauptprobleme im Bereich des mehrsprachigen Entwurfs sind die sichere Integration der verschieden spezifizierten Teilsysteme und die optimierte Implementierung des gesamten Systems. Beide Probleme verlangen eine zuverlässige Validierung der Systemfunktion sowie der nichtfunktionalen Systemeigenschaften. Heutige cosimulationsbasierte Ansätze aus Forschung und Industrie sind gut geeignet für die funktionale Validierung und Fehlersuche, haben aber Schwächen bei der Validierung nichtfunktionaler Systemeigenschaften. In der vorliegenden Arbeit wird ein neuartiger kompositionaler Ansatz für den Entwurf eingebetteter Systeme vorgestellt, der existierende cosimulationsbasierte Entwurfsflüsse um Fähigkeiten zur Analyse nichtfunktionaler Systemeigenschaften ergänzt. Ausgehend von einer mehrsprachigen Spezifikation, wird das System in eine abstrakte homogene interne Darstellung transformiert, die als Grundlage für die systemweite Analyse und Optimierung dient

Republican Journal: Vol. 44, No. 3 - July 24,1873

https://digitalmaine.com/rj_1873/1029/thumbnail.jp

The Lance: School Year 2014-2015

School Year 2014-2015 Vol. 87: no. 1 (2014: Aug. 28) 16p.Vol. 87: no. 2 (2014: Sept. 11) 16p.Vol. 87: no. 4 (2014: Sept. 25) 12p.Vol. 87: no. 6 (2014: Oct. 9) 16p.Vol. 87: no. 8 (2014: Oct. 23) 16p.Vol. 87: no. 10 (2014: Nov. 6) 12p.Vol. 87: no. 12 (2014: Nov. 20) 16p.Vol. 87: no. 14 (2014: Dec. 4) 16p. On cover: mis-numbered as no. 12Vol. 87: no. 16 (2014: Dec. 18) 16p.Vol. 87: no. 17 (2015: Jan. 15) 16p.Vol. 87: no. 18 (2015: Jan. 29) 16p. On cover: misdated as 2014Vol. 87: no. 20 (2015: Feb. 12) 16p.Vol. 87: no. 22 (2015: Feb. 26) 16p.Vol. 87: no. 24 (2015: Mar. 12) 16p.Vol. 87: no. 26 (2015: Mar. 26) 16p.Vol. 87: no. 28 (2015: Apr. 9) 16p. On cover and inside: mis-numbered as no. 24Vol. 87: no. 30 (2015: Apr. 23) 16p. Missing Issues: These missing issues can be viewed online at: https://issuu.com/uwindsorlance. They cannot be downloaded. Vol. 87: no. 3 (2014: Sept. 18) 6p.Vol. 87: no. 5 (2014: Oct. 2) 6p.Vol. 87: no. 7 (2014: Oct. 16) 8p.Vol. 87: no. 9 (2014: Oct. 30) 8p.Vol. 87: no. 11 (2014: Nov. 13) 8p.Vol. 87: no. 13 (2014: Nov. 27) 10p.Vol. 87: no. 15 (2014: Dec. 11) 12p.Vol. 87: no. 19 (2015: Feb. 5) 8p.Vol. 87: no. 21 (2015: Feb. 19) 10p.Vol. 87: no. 23 (2015: Mar. 5) 12p.Vol. 87: no. 25 (2015: Mar. 19) 12p.Vol. 87: no. 27 (2015: Apr. 2) 10p.Vol. 87: no. 29 (2015: Apr. 16) 12p. On cover: mis-numbered as no. 25https://scholar.uwindsor.ca/lance/1065/thumbnail.jp

Political and Social Developments in Morocco During the Reign of Mawlay Sulayman 1792-1822.

Mawlay Sulayman's reign (1792-1822) has so far received little attention from students of Moroccan history. The present work is designed to fill this gap in the modern history of Morocco by investigating the social, economic, political and religious aspects of this period of thirty years. It is intended to provide students of the modern history of Morocco with basic factual knowledge about the period. Initially, the thesis describes the structures of the Moroccan State and of Moroccan society at the turn of the nineteenth century. The economic history of the period is emphasised, particularly Morocco's commercial relations with Europe and the reasons behind the weakening of these relations at the beginning of the nineteenth century. The thesis then reconstructs the political history of Morocco during Mawlay Sulayman's reign. The discussion of political relations with the major European powers is intended to invalidate the long-held view of Morocco's isolation during the period under study. However, the most important - and the least known -aspect of the period from 1792 to 1822 is made up by Mawlay Sulayman's religious ideas and policy. To what extent was he reformist in his ideas? What was the real impact of the Wahhabi doctrine on the religious debate in Morocco, and what made the confrontation between Mawlay Sulayman and religious groups inevitable? These are some of the questions the thesis seeks to answer before moving on to discuss the Fes rebellion (1820-1822) which was really the last serious attempt by traditionalist groups to change the course of history to their advantage