This paper presents two engineering design problems, both of which were solved by evolutionary algorithms. The evolutionary approach is used in universal electro-motor geometry optimization and integrated circuits area/time optimization. In the first case we improve the efficiency of a universal motor; where the goal is to find a new set of independent geometrical parameters for the rotor and t...

Hardware design methods come closer to software engineering. Proven techniques are further ahead than common awareness of them. Behavioral Synthesis means hardware compilation rather than CAD: Hardware compilation from register-transfer level sources or even from high-level programs like C sources. The programmer “programs” by himself the hardware he needs. This has become reality by novel dyna...

is concerned with algorithm design and mapping the algorithm onto hardware. High-level synthesis, which until now was used only in industrial laboratories and universities, is evolving from its embryonic state to practical use in product design. Commercial products now address logic-level synthesis, which is rapidly gaining user acceptance. Logic synthesis systems manipulate a Boolean-level or ...

High-level or behavioral synthesis of digital circuits ooers an eeective way to deal with the increasing complexity of digital hardware design. A high-level synthesis tool transforms an abstract algorithmic description into a detailed register transfer level implementation. Since most of the times the algorithmic description is given in textual form, high-level synthesis transformations share c...

We present a hardware synthesis system that accepts system-level speciications in both Verilog HDL and C. A synchronous semantics is assumed for both languages in order to guarantee a uniform underlying model. The rationale for mixed input speciications is to support hardware/software co-design by allowing the migration to hardware of system modules originally described in the C language. We di...

Yorùbá being a tone language requires tone information for the correct pronunciation of words in Text-to-Speech synthesis. Based on standard Yorùbá orthography, such information is held in tone marks, which applied to vowels and syllabic nasals as diacritical markings. However, the tone marks are not always correctly applied in many Yorùbá documents because appropriate input devices for the acc...

On-line testability is essential in designs with high reliability requirements. High-level synthesis reduces time-to-market and enables efficient design space exploration. In our work, we implement on-line testable designs in a high-level synthesis environment. We refer to our new technique (inversion testing) and exploit its features, in an attempt to reduce hardware penalties. Further, we enh...

In a formalism of top-down design, we consider the decomposition of behavioral specications into interacting sequential components. The higher level of description speci es the operations to be performed in a major computation step. The goal is to incorporate a given interface speci cation in a lower-level speci cation that accounts for interactions with and among sequential components. This co...