Description
This is for the 40 pin variant of the OneRom.
Other versions:
Project page: https://onerom.org
One ROM — The Most Flexible Retro ROM Replacement
One ROM is the ultimate open-source ROM replacement solution for vintage and retro computers. Designed to emulate the 24, 28, 32, and 40-pin EPROMs and mask-programmed ROMs found in nearly every computer-based system from the late 1970s through the early 1990s, One ROM gives collectors, hobbyists, and retro computing enthusiasts a single, versatile hardware solution to modernize and maintain classic machines.
Universal Compatibility for Retro Systems
One ROM has been tested and confirmed working with a wide range of iconic retro platforms, including the Commodore 64, VIC-20, PET, 1541 disk drives, Atari 800XL, TI-99, CoCo2, BBC Micro and Master, Apple II, PC XT, Amiga, and numerous arcade systems. A single hardware variant covers all ROM types within a given pin count — no need for multiple adapters or custom solutions per system.
Powerful Features, Simple Setup
- Replace multiple original ROMs simultaneously with a single board
- Store multiple ROM images, selectable via jumpers
- Dynamic bank switching — swap ROM images on the fly while the host system is running
- Chip select lines are fully software-configurable, requiring no hardware jumpers
- USB variant programs directly from your browser in seconds — no separate programmer required
- In-circuit reflashing prevents wear on sockets and chips
Full Ecosystem of Tools
One ROM is supported by a comprehensive software suite: One ROM Studio for Windows, Mac, and Linux; One ROM Web for browser-based programming from any device; and One ROM CLI for command-line power users.
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