Detail výsledku
Implementation Techniques for Evolvable HW Systems: Virtual vs. Dynamic Reconfiguration
Otero Andres
Mora Javier
De la Torre Eduardo
Riesgo Teresa
Sekanina Lukáš, prof. Ing., Ph.D., UPSY (FIT)
Adaptive hardware requires some reconfiguration capabilities. FPGAs with native dynamic partial reconfiguration (DPR) support pose a dilemma for system designers: whether to use native DPR or to build a virtual reconfigurable circuit (VRC) on top of the FPGA which allows selecting alternative functions by a multiplexing scheme. This solution allows much faster reconfiguration, but with higher resource overhead. This paper discusses the advantages of both implementations for a 2D image processing matrix. Results show how higher operating frequency is obtained for the matrix using DPR. However, this is compensated in the VRC during evolution due to the comparatively negligible reconfiguration time. Regarding area, the DPR implementation consumes slightly more resources due to the reconfiguration engine, but adds further more capabilities to the system.
FPGA, evolvable hardware, digital circuit, image filter
@inproceedings{BUT96954,
author="Ruben {Salvador} and Andres {Otero} and Javier {Mora} and Eduardo {De la Torre} and Teresa {Riesgo} and Lukáš {Sekanina}",
title="Implementation Techniques for Evolvable HW Systems: Virtual vs. Dynamic Reconfiguration",
booktitle="Proc. of the 22nd International Conference on Field Programmable Logic and Applications (FPL)",
year="2012",
pages="547--550",
publisher="IEEE Computer Society",
address="Oslo",
doi="10.1109/FPL.2012.6339376",
isbn="978-1-4673-2257-7",
url="https://www.fit.vut.cz/research/publication/9985/"
}