These are the C/C++ source files and PyNN scripts developed as part of a study to reproduce selected network states of the Izhikevich polychronization model on the SpiNNaker neuromorphic system. **STATUS**: Several releases for this source code have been published on Zenodo: Ver. 1.0: [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1435026.svg)](https://doi.org/10.5281/zenodo.1435026) Ver. 2.0 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1435831.svg)](https://doi.org/10.5281/zenodo.1435831)