Not sure if it is scope creep... Loader used all the same OBDII structure for commands. Most of the time spent is still of value. Target changes from my loader to GM's code and the module Kur4o provided. For sure I learned good lessons about my assembler and the way it mishandles the S9 record. In this case mishandles=not what I expected, function of S9 isn't well documented. Assembler isn't well supported as the author passed away.

Currently, I have the module loading and doing some prelim stuff, turn on/off vpp, measure voltages. Task at hand is creating the code that can be loaded via bootstrap, morph into special test mode and run that programming module. That way when the FLASH goes away... zeroed, erased and so on I can still step through the programming and/or recover the PCM if I need to.

I am close... probably even try programming TSide later this week.

-Tom