I’ve been working on a system of modular backplane sections.
Category Archives: Hardware
Z80 Processor module
Slot saving module up and running.
Z80 PIO module
Here’s the third module in my set of Z80 peripheral chip implementations.
Z80 SIO/2 module
Here’s the second module in my set of Z80 peripheral chip implementations.
Z80 CTC module
My first PCB in a very long time!
Alphanumeric LCD
Every system needs a small Liquid Crystal Display, right!
Tom’s SBC
I’ve built Tom Szolyga’s SBC version C.
Small Computer 101
A prototype Small Computer has been built and works as expected.
It has 128k bytes of FLASH and 128k bytes of RAM. A simple paging system allows access to all of the memory. A serial port is included for connection to a terminal. Expansion is available through an RC2014 bus connector.
Small Computer 002
This is a slight upgrade on design 001.
The Small Computer design 002 is a minimal Z80 system.
It has 128k bytes of FLASH and 128k bytes of RAM. A simple paging system allows access to all of the memory. A serial port is included for connection to a terminal. Expansion is available through an RC2014 bus connector.
Small Computer 001
The Small Computer design 001 is a minimal Z80 system.
It has 32k bytes of ROM and 128k bytes of RAM. A simple paging system allows access to all of the memory. A serial port is included for connection to a terminal. Expansion is available through an RC2014 bus connector.
Small Computer Central 