I have a chinook IIc hard drive which I had started to rev eng. This is the Smartport to SCSI converter. I had some info posted on the web but my personal ISP got out of the web hosting business and I havn't gotten back to re posting any of it yet.
There was a fellow who started up a web forum to discuss a project related to recreating a early Mac. He posted some info on his LA captures of the IWM in action. http://www.stockly.com/forums/showthread.php?t=9
- I have not been successful in contacting him though.
My approach was to tackle things from two ends ... start at the begining with the original disk II controller - Understand how that works and then try to understand the smartport packet protocol layered over that. Second start witha working protocol converter and break it down into it's component parts and understand how that works.
Would you be willing to share what you have come up with so far?