RAMS: A VHDL-AMS Code Refactoring Tool Supporting High Level Analog Synthesis

Zeng, Kaiping; Huss, Sorin A.

doi:10.1109/isvlsi.2005.60

IEEE Computer Society Annual Symposium on VLSI: New Frontiers in VLSI Design (ISVLSI'05)

DOI: 10.1109/isvlsi.2005.60

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RAMS: A VHDL-AMS Code Refactoring Tool Supporting High Level Analog Synthesis

Kaiping Zeng

Sorin A. Huss

Abstract: In this paper, a code refactoring methodology for the high-level analog synthesis is presented. It restructures, refines, and simplifies an analog behavioral model written in VHDL-AMS. Through code refactoring one improves the comprehensibility, expandability and reusability of the behavioral model and brings the model to a necessary preliminary stage for the actual circuit synthesis. This approach supports the top-down hierarchical design flow for analog and mixed-signal application.

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Cited by 3 publications

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Architecture Refinements by Code Refactoring of Behavioral VHDL-AMS Models

Zeng

Huss

2006 IEEE International Symposium on Circuits and Systems

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This paper presents an automatic structure synthe-of analog models due to obvious similarities between the sis technique by partitioning the system representation, which software engineering and the hierarchical top-down design consists of interconnected analog and mixed-signal behavioral flow. In this context, refactoring of analog model means to models coded in VHDL-AMS. The proposed model code refining methodology restructures, refines, and simplifies behavioral mod-modify a model descraption synthesis-oriented wlthout changels by means of code transformations of given abstract models. ing the envisaged behavior of the system model, so that The fundamental approach for these transforms is code refactor-an implementable description for the next-level synthesis is ingan approach taken from software engineering and adjusted reached by iterative application of a sequence of refactoring to the requirements of analog circuit synthesis. Through code methods. That is, part of the model is rewritten in order to refactoring one improves the comprehensibility, expandability, . . and reusability of a behavioral block model and restructures the mprove ertat qualities such as areadablityh extemnsibaietyo model such that subsequent circuit synthesis steps may produce reusability, or synthesability, making the system easier to adequate structural representations of the intended behavior. change, less error-prone and most important more synthesis-Application examples demonstrate the feasibility of this novel oriented.

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Architecture Refinements by Code Refactoring of Behavioral VHDL-AMS Models

Zeng

Huss

2006 IEEE International Symposium on Circuits and Systems

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Structure Synthesis of Analog and Mixed-Signal Circuits using Partition Techniques

Zeng

Huss

7th International Symposium on Quality Electronic Design (ISQED'06)

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This paper presents an automatic structure synthesis techniques by partitioning of the analog and mixed-signal circuit models. It translates a behavioral-level analog description written in VHDL-AMS into a structure-level VHDL-AMS specification based on a set of behavioral analog primitives.It is one of the three techniques in our proposed hierarchical methodology for supporting high-level analog synthesis.

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Synthesis on Programmable Analog Devices from VHDL-AMS

Asensi

Gómez‐Díaz

Martínez‐Alajarín

et al.

MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference

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Abstract-Nowadays, the microelectronics market is characterized by an increasing complexity and integration, in particular in the field of application specific integrated circuits (ASICs) not only for digital but also for mixed-signal designs. The lack of a well defined methodology for analog synthesis, similar to the digital field means a serious drawback for analog and mixed signal design development. In this sense, the arise of VHDL-AMS is a recent evolution which promises to link analog design automation tasks into a coherent framework, in a similar fashion that digital design. In this paper, a tool to perform automated synthesis of analog systems, described in VHDL-AMS, into analog programmable devices is presented. The tool is focused to synthesise filters, wave-shaping circuits, amplifiers and in general most circuits supported by programmable technology. It is demonstrated with a practical example of a analog system composed by two filters and two controllable gain stages.

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RAMS: A VHDL-AMS Code Refactoring Tool Supporting High Level Analog Synthesis

Cited by 3 publications

References 4 publications

Architecture Refinements by Code Refactoring of Behavioral VHDL-AMS Models

Architecture Refinements by Code Refactoring of Behavioral VHDL-AMS Models

Structure Synthesis of Analog and Mixed-Signal Circuits using Partition Techniques

Synthesis on Programmable Analog Devices from VHDL-AMS

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