Sunday, August 22, 2021

Z80 microcomputer project continues


 Pictured above I have the Z80, a ROM chip, and a RAM chip all wired together.  The big chip not wired up is the Z80 DART.  Once I connect that I should be able to connect to the computer via a serial port and see if it is really running or not.

The design here is based on Grant Searle's design available here: http://searle.x10host.com/z80/SimpleZ80.html

Only difference is I'm using an old school Z80 DART for the I/O instead of a 68B50 which Mouser didn't carry. I plan on using his ROM sources, but not sure yet if I have to make changes to the serial port addresses and rebuild it.

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