I ran across a blog by Brad Robinson about his efforts to build the 1980's Microbee home computer using FPGAs. One implementation uses a XuLA2 board and a custom PCB to fit the Microbee into a small case that attaches to a keyboard and monitor. All the steps in developing the circuitry and FPGA code are clearly documented in a series of blog posts.
Should you care about a rebuild of a 30-year-old home computer? Maybe, maybe not. But that's beside the point: with FPGAs, the stuff that Brad put into his project can be re-used by you, and there's a lot of good stuff in his project! Want a Z80 soft-core processor for your own design? He's got one. Want to know how to connect it to SDRAM? He's done that. Display graphics on a monitor, generate sound effects, access programs from an SD card? Done, done, done! So use Brad's particular fascination with the Microbee to jumpstart your own design.Share on Twitter Share on Facebook Share on Reddit