So my project over the holiday season was decided: TeensyZ80. I wanted to have a usable Z80 running its own code, with the teensy supporting it providing the RAM, I/O peripherals, and clock.
Very interesting. It’s only the first part; the second part is available too!
His next project?
Dunno, but it *should* be to play this from his Z80 thingie: https://www.youtube.com/watch?v=b1WWpKEPdT4.
Following the link the in page to the technical info for the Teensy being used, I see that it’s a Cortex-M4 with enough memory to run a Z80 emulator.
I wonder whether emulation would be faster.
But where’s the fun in that?
He didn’t even provide a real clock – he was faking a clock signal … I don’t think fast was one of the objectives.
He’s really emulating a custom Z80 chipset here, I/O and memory.
The Teensy 3.1 is a brilliant device, so powerful I use it a lot for interfacing old 5v chips with other more moden devices.