User Interface Board overview

A project log for Discrete YASEP

a 16-bits YASEP computer (mostly) made of DIP/SOIC chips like in the 70s and 80s... with 2010's twists!

Yann Guidon / YGDESYann Guidon / YGDES 10/23/2015 at 21:240 Comments

These last days, I have solved almost all the design issues for the user interface board.

The remaining issues are

So far the remaining unknown is the exact definition of the main bus. I believe it's only a matter of time and it will probably evolve so I keep some headroom.

Anyway, so far, except for the USB-serial dongle, the required integrated circuits are only MSI (or less) and the quantity is reasonable. Hopefully, I'll find a similarly smart solution for the 7 segments drivers...