@RichCini , Sir , I offer you my humble apologies for failing to answer your request - yes, back in June 2020. I did see your request at the time, but I was locked-down in the Philippines until 2022 and was unable to access my old laptop with the relevant records. I had completely forgotten about your message until today when I started up my old laptop.
I don't know if you'd still be interested, but if so I am more than happy to help you.
I have attached the relevant files for your perusal. I must apologize for the poor quality of the schematic. It was never rendered in a quality format because I never managed to spend more time improving the documentation. The accompanying technical description is also not very comprehensive, but I think is adequate in describing the main operating strategy and the functionality of the circuit building blocks. The system was developed at a time long before USB ports and before the widespread availability of PCs. It was developed entirely around the old BBC micro , and used the very archaic 1 MHz expansion bus . Yes , undeniably in the dinosaur era.
I created this system at a time when I was moving rapidly from one development to another , and admittedly I was rather remiss about consolidating my documentation.
If I can be of any more help in clarifying any of the information, please don't hesitate to contact me.
About a year after the 6502 ICE I developed an ICE for the 8086 which had significantly more stringent H/W and S/W design requirements. I believe I have all the information for this stored in boxes which haven't seen the light of day for nearly 40 years !
Having mentioned it, I'm now curious about trying to recover the documents to see if I can remember anything about the system.
Once again . apologies for my seeming bad manners and good luck trying to decipher the description,
Regards,
David Kelly
email:
davidjkelly84@gmail.com
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