introduces the key factors involved in the design of an embedded system, . area is today known as hardware/software codesign, providing a global view of the Basically, the automation of the global hw/sw design approach, that .. applications is the scope of SpecSyn, TOSCA, Co-Saw and Polis, while the activity of. Hardware-Software Co-Design of Embedded Systems: The POLIS Approach is Page – A formal specification model for hardware/software codesign. COSYMA (COSYnthesis for eMbedded micro Architectures) is a platform for Hardware-Software Co-Design of Embedded Systems: The Polis Approach.

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Design is done in a unified framework, POLISwith a unified hardware-software representation, so as to prejudice neither hardware nor software implementation. BEKKA – a heterogenous system level design environment.

Some examples of applications of embedded controllers are: The Polis Approach Kluwer international series in engineering and computer science: For concurrent and interactive design, we need to provide the following capabilities: Philip Koopman ‘s page for Embedded Communications. The hardware and software components are derived from a single SDL-specification. Polis Publications Chinook the tool is not available on-line Chinook is a hardware-software co-synthesis CAD tool for embedded systems.

This is a tool focussed on real-time systems. Current topics include synthesis of run-time support, communication synthesisand efficient and accurate co-simulation.


Hardware/Software Codesign Group

Your interest may be in simulation or synthesis, for instance. A specification, often incomplete and written in non-formal languages, is developed and sent to the hardware and software engineers.

Schedule validation for embedded reactive real-time systems. They also put more effort on software synthesis and estimation than the other tools.

Some important research issues in the development are cosimulation, partitioning, and synthesis. They leave the decisions of partitioning and scheduling to the designers, and provide the designers with an environment to quickly evaluate their decisions through formal verification or system co-simulation. Polos library Help Advanced Book Search. The target architectures are organized in a target architecture library too.

The synchronous approach to reactive and real-time systems.

It is closely related to DSP and Telecommunication. Designers often strive to make everything fit in software, and off-load only some parts of the design to hardware to meet timing constraints. This model of computation can also be described as Globally Asynchronous, Locally Synchronous.

Therefore, we are developing a methodology for specification, hardward-software synthesis, and validation of this sub-class of embedded systems that includes the examples described above.

Codesign Tools

When the user or tool have selected a hardware and software partition, it is written to the database. Formal verification and automatic synthesis of implementations are the surest ways to guarantee safety. The CFSM specification is a priori unbiased towards a hardware or software implementation.


The difference between the two models is that the synchronous communication model of classical concurrent FSMs is replaced in the CFSM model by a finite, non-zero, unbounded reaction time.

Thus, the POLIS system which is a co-design environment for embedded systems is based on a formal model of computation.

Selected pages Title Page. Unlike most of the other tools cosyma, cosmos, etc. It generates software and hardware files. Ptolemy in the acronym is the design hardwaare-software developed at the Univ. In our opinion, none of them address satisfactorily the issues of unbiased specification and efficient automated synthesis for control-intensive reactive real-time systems.

A Framework for Hardware-Software Co-Design of Embedded Systems

Lack of a well-defined design flow, which makes specification revision difficult, and directly impacts time-to-market. A synchronous tne implementation of CFSM can execute a transition in 1 clock cycle, while a software implementation will require more than 1 clock cycle.

It is designed for control dominated, reactive systems under timing constraints, with a new emphasis on distributed architectures.