XuLABee - The 1980's Microbee Home Computer Reimagined with an FPGA

Posted by: Dave Vandenbout 4 years, 1 month ago

(3 comments)

the 1980's Microbee home computer 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.

Current rating: 5


Comments

  • Brad Robinson 4 years, 1 month ago

    Hi Dave,

    Thanks for the nice write up, but more so thanks for your help with some of the VHDL issues I encountered along the way. Just to clarify, the Z80 soft-core is not my design - it's the OpenCores T80.

    Finally thank's for the awesome Xula2 board - it's nice to have such a capable FPGA in such a tiny package.

    Brad

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  • Vader Fabrice 4 years ago

    Hi ,
    I like this project :)
    Is there a compiled project i can directly load into my Xula2.
    In the bitbucket release its hard to know what to take for download into the fpga ;)

    Regards.

    Darth.

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