Superboard II owner and replica creator
Posted: Sun Mar 31, 2013 5:30 pm
I've owned my Superboard II for a few years and I've wanted to recreate it. I'm in the process now and have a working wirewrap version. I can boot and run BASIC just fine, I still need to implement the serial port for file transfers. Maybe later I'll work on the disk controller interface. Are there images of floppies out there? I don't have a 610 board on my Superboard II so I don't have any disk experience with this machine.
Here's some pictures of my work so far. Still a long way to go.
Doing a full sized keyboard will be difficult because of cost to make one, but I have some buttons with caps that will work pretty good. I'm also working on a ps/2 keyboard interface.
The machine currently has a 65C02 running at 3.3V with Parallax Propeller emulating 25x25 (32x32 memory space) and ROM. I have 1 SRAM using 32K from 000-7FFF. I did the circuit at 3.3V because the Propeller runs at 3.3V and it was just easier to use a WDC 65C02 at 3.3V than use 24+resistors and keep the whole thing at 5V. There is still 5V onboard for anything I need to add later like a max232 and ps/2 keyboard. I'm trying to make kits so people can build them like the 70's.
Let me know what you guys think,
Vince
Here's some pictures of my work so far. Still a long way to go.
Doing a full sized keyboard will be difficult because of cost to make one, but I have some buttons with caps that will work pretty good. I'm also working on a ps/2 keyboard interface.
The machine currently has a 65C02 running at 3.3V with Parallax Propeller emulating 25x25 (32x32 memory space) and ROM. I have 1 SRAM using 32K from 000-7FFF. I did the circuit at 3.3V because the Propeller runs at 3.3V and it was just easier to use a WDC 65C02 at 3.3V than use 24+resistors and keep the whole thing at 5V. There is still 5V onboard for anything I need to add later like a max232 and ps/2 keyboard. I'm trying to make kits so people can build them like the 70's.
Let me know what you guys think,
Vince