To ensure secondary micro does not interfere with functionality of primary micro:

 * Command primary micro to enable secondary micro by setting DOT enable Secondary micro block to TRUE
 * Command primary micro to enable SBat by setting DOT enable pin (YA2, YA3, …., ZG2) block to TRUE.
 * Build and Flash the default example code found in the openecu installation package for secondary micro.

Refer to the [[https://www.pi-innovo.com/download/openecu-v3-0-0-fs-quick-start-guide-2/|OpenECU Release 3.0.0-FS Quick Start Guide]] for more information.