By Patrick R. Schaumont
This e-book offers a scientific advent to the subject of Hardware-Software Codesign. the fabric emphasizes the elemental rules, and the sensible facets of Hardware-Software Codesign. The booklet constructed from a direction with regards to Hardware-Software Codesign, prepared through the writer at Virginia Tech. it truly is separated into 4 differenct sections; easy options, customized Architectures, Hardware/Software Interfaces, and functions. the writer covers many recommendations together with many of the sorts of expressing computations, sequential and parallel implementations, control-flow and data-flow, keep watch over dependency and knowledge dependency, latency and throughput in addition to the structure layout house of information paths, finite kingdom machines, micro-programmed machines, instruction-set processors, system-on-chip, and on-chip buses. the cloth additionally contains the several different types of hardware/software interfaces, their influence on functionality, rate, and software program complexity. The e-book includes info on hardware/software integration of elements on best of hardware/software interfaces in addition to layout technique and layout flows for hardware-software codesign together with functionality evaluate, verification and synthesis of and software program implementations. difficulties are integrated on the finish of every bankruptcy and a ideas handbook should be to be had for teachers.
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Extra info for A Practical Introduction to Hardware/Software Codesign
A soft-core is a processor implemented in the bitstream of an FPGA. However, the soft-core itself can execute a C program as well. Thus, software can execute on top of other ‘software’. A Digital-Signal Processor (DSP) is a processor with a specialized instructionset, optimized for signal-processing applications. Writing efficient programs for a DSP requires detailed knowledge of these specialized instructions. Very often, this means writing assembly code, or making use of a specialized software library.
We only point out why this assembly code is architecture specific. The TI C64x is a highly parallel processor that has two multiply-accumulate units. It can compute two loop iterations of the C loop at the same time. 5, several instructions are preceded by ||. Those instructions will be executing in parallel with the previous instructions. 5 spans 9 lines, it consists of only three instructions. Moreover, the program will complete with only half the amount of iterations of the C program. 5 is more efficient than the original C program, but it is also optimized for a single specialized architecture.
The SoC is a good example of this trend. However, ‘programmability’ can be found in many different forms other than embedded processors: reconfigurable systems are based on the same idea of reuse-through-reprogramming. Shrinking Design Schedules: Each new generation of technology tends to replace the older one more quickly. In addition, each of these new technologies is exponentially more complex than the previous generation. For a design engineer, this means that each new product generation brings more work that needs to be completed in a shorter period of time.
A Practical Introduction to Hardware/Software Codesign by Patrick R. Schaumont