Very interesting writeup - thanks for going into detail on this. So basically there will be a variant which isn't erasable unless you have the "OEM"'s key and a

Very interesting writeup - thanks for going into detail on this. So basically there will be a variant which isn't erasable unless you have the "OEM"'s key and a variant which is always erasable. Everything above makes sense and I really appreciate how you're trying to make this happen for the open source community by intelligently designing a product for both markets. I infer from the above that you're intending to avoid having any kind of mask boot ROM that could allow programming via the normal interface used to talk to the SE... trying to avoid a boot ROM is interesting, but this is certainly one of the downsides. I guess you could try and hardcode the logic for a serial download protocol over the standard interface to the SE, if you can validate it well... Wishing you luck and hope everything goes to plan.