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Create LUT for cos and sin plasticity rules #5

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ChiaraBartolozzi opened this issue Oct 9, 2018 · 1 comment

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ChiaraBartolozzi commented Oct 9, 2018

understand required range

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ChiaraBartolozzi commented Oct 11, 2018 •

edited

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In plasticity_helper.py we created a new function that generates the LUT for the PFPC STDP kernel:

exp(dt/tau)sin(dt/tau)^20

the LUT has been checked and used to implement the plasticity update on SpiNNaker.

TODO:

tidy the code and check the equations to find the maximum for the normalisation
write the LUT for the MFVN plasticity (it is a coincidence detector, symmetric around the PC event so we can write the LUT for one side and use the absolute value of dt). The temporal window in which the kernel has an effect is about +/-20ms, so we can use a LTU of 64 (or 32?) elements.

ChiaraBartolozzi self-assigned this

pabogdan transferred this issue from SpiNNakerManchester/sPyNNaker8

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