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Amstrad CPC RAM Expansion

The main event in this GitHub project is a set of 512K and 1MByte RAM Expansion cards for the Amstrad CPC computers from the 1980s.

In fact there are several mini-projects in here:

• Old School CPC 512K & 1MB RAM Expansion Card for CPC6128 and Plus computers
• Universal RAM Expansion Cards for all CPC computers, with unique Amstrad C3 mode operation on 464/664
• CPC 4 ROM Expansion Card
• CPC 6 ROM Expansion Card
• CPC Expansion backplanes- 3 slot and 4 slot expansion boards, with pass through IDC header or edge connectors.

All of the above projects have been built and tested.

Eagle PCB files and zipped archives suitable for getting boards made are included in the Eagle Releases subdirectory.

All programs and data files in this project are made available under the terms of the GNU General Public License v3.

Gallery

Family Photo showing Expansion backplane, Fourrom and Sixrom cards and the Old School 74 Series RAM Expansion