Why does my HIL (Hardware In the Loop) co-simulation produce different results when using MegaCore library functions?

Description

In the DSP Builder Handbook, Volume 2, Chapter 4:  Using MegaCore® Functions, it identifies that when adding a MegaCore function to your Simulink® model, you must give the block a unique name and recommends that you rename all blocks representing MegaCore functions.

One consequence of not renaming the MegaCore function is that your HIL co-simulation may not match your Simulink simulation.

Resolution

Be sure to rename all your MegaCore functions to unique names.