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Particle Swarm Optimization (PSO) is a widely used algorithm to solve complex optimization problems with non-linear objective functions. PSO usually requires powerful and expensive computers to achieve reasonable execution times. Sometimes the price or size of the computing system is unacceptable, forcing designers to simplify the objective function or to discard PSO. To overcome this limitation,...
The Field-Programmable System-on-Chip concept, integrating processors and configurable logic into the same chip, leads to digital design platforms more powerful than processors and FPGAs alone. Efficient communication between the processor and the FPGA fabric is a key factor to achieve maximum performance in these devices. Architectures for processor-FPGA communications include functional blocks like...
FPGAs have evolved from hardware accelerators to very powerful System-on-Chip platforms, mainly thanks to the availability of increasingly powerful embedded processors. The efficient integration of embedded processors with the FPGA fabric requires fast exchange of information between both sides, not to compromise the performance improvement these architectures should provide. Therefore, detailed performance...
Stroke accidents affect a significant number of people per year all over the world. Sequels of these accidents usually affect the ability of the patients to perform daily life tasks. Rehabilitation plays a fundamental role in assisting those people to recover (to the extent possible). Nowadays, robotic systems are being increasingly used in this area. FISIOROB is one such solution being developed...
This paper analyzes the issues associated to the virtualization of instruments based on Field-Programmable System-on-Chip hardware platforms, with emphasis on communication issues. The main steps for virtualization are described through a real application example, intending to provide designers with guidance through the tasks involved in the process. This avoids the need for them to directly dealing...
Currently, frequency is the physical variable that can be measured with the best accuracy. Therefore, sensors based on frequency measurements are used in many industrial applications. QCM sensors are a kind of resonator-based sensors that allow mass variations in the nanogram-picogram range to be detected. This paper presents a high-accuracy frequency meter system for QCM sensors based on a Field-Programmable...
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