Terence Boldt

CANADA • + Follow

Juan VM

SPAIN
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Engineer

BRAZIL
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Dario Loy

ITALY
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CygnusTM
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10

Description

ProDOS ROM-Drive v4

This is a peripheral card for the Apple ][ series computers that acts as a read-only solid state disk drive (SSD) all in EPROM. Although it won't run DOS, it is fully ProDOS compatible and will appear as a read-only hard drive even when booting from another drive. It holds 1024 KB of disk data making a full megabyte. The firmware for the card resides in block 0001 that is normally reserved for SOS boot on Apple ///. The drive boots ProDOS and into BASIC in under 1.5 seconds. This is the fourth and latest revision of the board with 4 more blocks than versions 1 through 2.5 and fixes a data buffer issue in versions 2.1, 2.5 and 3.0.

Code

ProDOS ROM-Drive on GitHub

https://github.com/tjboldt/ProDOS-ROM-Drive

Download Gerbers Download BOM(Bill of materials)

Mar 19,2022

2,402 views

ProDOS ROM-Drive v4

A 1 MB read-only solid state disk for Apple II computers.

2402

Published: Mar 19,2022

Standard PCB

Download Gerber file 52

BOM(Bill of materials)

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File Last Updated: 2023/12/22 (GMT+8)

File update record

2023-12-2214:18:00

Parts List (BOM) is updated.

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