MegaSquirt-II Sequencer™ Schematics

The MS-II Sequencer™ controller consists of three main parts:

  1. a "MicroSquirt®" section that is virtually identical to MicroSquirt and performs many of the calculations,
  2. a sequencing processor that uses the same processor but different code than MS-II™ and MicroSquirt® to distribute the ignition and injection signals appropriately, and
  3. a CPLD that is configured by sequencing processor and then does the pure spark routing when triggered by the IGN1 and IGN2 signals from the main processor.

A PDF file of the schematics is here.

MegaSquirt®, MicroSquirt® and MS-II Sequencer™ controllers are experimental devices intended for educational purposes.
MegaSquirt®, MicroSquirt® and MS-II Sequencer™ controllers are not for sale or use on pollution controlled vehicles. Check the laws that apply in your locality to determine if using a MegaSquirt®, MicroSquirt® or MS-II Sequencer™ controller is legal for your application.
©2009 Bruce Bowling and Al Grippo and Lance Gardiner. All rights reserved. MegaSquirt® and MicroSquirt® are registered trademarks. This document is solely for the support of MegaSquirt® boards from Bowling and Grippo.