EinTrans200 was written by Ste Ruddy, then a colleague at Software Creations. I used it a few times back then to transfer some of my source files to a PC, as we were in the process of using them for software development.
Anyway, I've reverse engineered the Tatung Einstein component, and am in the process of writing a modern replacement for EinTrans in Python. You can find my blog entry on this here:
http://www.breakintoprogram.co.uk/hardw ... o-eintrans
There is a link at the bottom to the GitHub repo with the source code in for connecting to EinTrans in Python, along with a documented disassembly of the Einstein Z80 code.
Enjoy
Reverse Engineering EinTrans
Re: Reverse Engineering EinTrans
Great work 

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