This is the fourth part of a series of posts detailing steps required to get a simple Z80 based computer running, facilitated by a Teensy microcontroller. It’s a bit of fun, fuzing old and new hobbyist technologies. See Part 1, Part 2 and Part 3, if you’ve missed them. I mentioned ‘VRAM’ in the last post, which really was just an area of ram which I specified to the teensy through a port. I’ve now got something a bit more serious set up, which is completely separate from main RAM. I...
