This repository contains the hardware design for a heavily revised Dragon 32 computer memory board.
The design is most definitely experimental and absolutely unproven
The board replaces the onboard memory configuration used in early rev X4 PCBs
The bus connection supports a hypothetical 16MB but this is not currently practical
Even with 4MB on this card that main board only contains logic to address 1MB but will be expanded to control the full 4MB ASAP.
The remaining 12MB is intended for expansion slots.