A Cellular Structure for Online Routing of Digital Spiking Neuron Axons and Dendrites on FPGAs

Authors:
Hooman Shayani;Peter Bentley;Andy M. Tyrrell
Affiliations:
Dept. of Computer Science, UCL, London, UK WC1E 6BT;Dept. of Computer Science, UCL, London, UK WC1E 6BT;Department of Electronics, University of York, York, UK
Venue:
ICES '08 Proceedings of the 8th international conference on Evolvable Systems: From Biology to Hardware
Year:
2008

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Abstract

As a step towards creating evolutionary developmental neural networks on FPGAs, a bio-inspired cellular structure suitable for online routing of axons and dendrites on FPGAs based on a new digital spiking neuron model (introduced previously by the authors) is proposed here. This structure is designed to allow changing the routing of the dendrites and axons and formation/elimination of synapses on the fly by dynamic partial reconfiguration of the LUTs. The feasibility and techniques for implementing this structure on a Xilinx Virtex-5 FPGA are also studied.