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ZX Spectrum Harlequin Paged ROM
This project adds multiple ROMs to the ZX Spectrum Harlequin. The Spectrum ROM is 16k bytes in size, it's replaced in the Harlequin board design by a 27C128 EPROM. This board uses a 27C020 EPROM as a 16 x 16k paged ROM. The active ROM image is selected by a HEX encoded rotary switch and the currently active ROM is shown on a HEX LED display (TIL311 display is optional).
I've now uploaded an example ROM image. The image is a binary dump and contains 16 Spectrum ROM images including IF2 games, unreleased IF2 games, BASIC (of course) and Spectrum test code.
ZX Spectrum Harlequin Paged ROM
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
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