Oops, only joking! I know it's not possible

Well, it depends on your definition of not possible...

I mean, all the prospective kit builder neets is the ability to hand solder 256 pin uBGA package chips (since the 208 QFP version of the strongarm is no longer made). If you can do that, the rest of it's easy

Patrick
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Experience is what you get just after it would have helped...