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. 2019 Sep 27;13:1011. doi: 10.3389/fnins.2019.01011

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Copyright © 2019 Elyahoodayan, Jiang, Xu and Song.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Block diagram and data stream of the multi-channel neurostimulator with SAS. The hardware is programmed by the embedded system to generate highly configurable constant current monopolar biphasic-pulse stimulation. Each block in the embedded system represents an algorithm to control the hardware. It consists of a MIMO non-linear dynamical model simulator, using a random number generator (RNG). The data is inputted to a multiplexer control unit to set the appropriate select lines of the multiplexer. The multiplexer control unit is synchronized with the SPI switch control unit to control CMOS switches.