I split your post into a new topic because it covers a different microcontroller. Unfortunately, we do not have a schematic of connecting the MC33926 to an Arduino or Basic stamp. Can you try drawing a schematic in a paint program on your computer (you can use pictures of the boards as a starting point)? I would be happy to review your picture to make sure your plan is good before you actually start making connections.
Please note we are planning to release an Arduino shield based on two MC33926s. We hope to have it for sale in the next couple weeks, so you might want to hold off if you haven’t bought the MC33926 carrier yet.