A Practical Introduction to Hardware/Software Codesign by Patrick R. Schaumont

By Patrick R. Schaumont

This booklet offers a scientific creation to the subject of Hardware-Software Codesign. the fabric emphasizes the elemental principles, and the sensible points of Hardware-Software Codesign. The e-book built from a path concerning Hardware-Software Codesign, equipped via the writer at Virginia Tech. it really is separated into 4 differenct sections; uncomplicated ideas, customized Architectures, Hardware/Software Interfaces, and functions. the writer covers many strategies together with many of the sorts of expressing computations, sequential and parallel implementations, control-flow and data-flow, regulate dependency and information dependency, latency and throughput in addition to the structure layout area of information paths, finite kingdom machines, micro-programmed machines, instruction-set processors, system-on-chip, and on-chip buses. the cloth additionally comprises different different types of hardware/software interfaces, their effect on functionality, expense, and software program complexity. The publication comprises info on hardware/software integration of elements on most sensible of hardware/software interfaces in addition to layout technique and layout flows for hardware-software codesign together with functionality assessment, verification and synthesis of and software program implementations. difficulties are incorporated on the finish of every bankruptcy and a options handbook could be to be had for teachers.

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5 shows the example of a particular encryption application (AES) for different target platforms (Refer to Further Reading for source references). The flexibility of these platforms varies from very high on the left to very low on the right. 18 micron CMOS standard cells. The logarithmic Y-axis Gb 2 J 10 101 100 10–1 10–2 10–3 10–4 10–5 10– 6 Java KVM Sparc Fig. 3 The Driving Factors in Hardware/Software Codesign 15 shows the amount of gigabits that can be encrypted on each of these platforms using a single Joule of energy.

1 The Platform Design Space A specification is a description of the desired application. A new application could be for example a novel way of encoding audio in a more economical format than current encoding methods. Often, applications start out as informal ideas, uncoupled from the actual implementation. Designers then write C programs to render their ideas in detail. In that case, the specification is a C program. The C program is not yet the final implementation, it is only a description of what the application should do.

Signal processing domain experts are used to describe complex systems, such as digital radios and radar processing units, using block diagrams. A block diagram is a high-level representation of the target system as a collection of smaller functions. A block diagram does not specify if a component should be hardware or software; it only shows a chain of signal processing algorithms and the data samples to send to each other. We are specifically interested in digital signal processing systems. Such systems represent signals as streams of discrete samples rather than continuous signal shapes.

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