Tag: autoconfig

2 matching upgrades

Showing 2 products.

StatusProductWhat it doesCompatibilityLinks
AvailableChecked Jul 27, 2026A500 8 MB IDE2by Oleg Mishin / Lotharek
ide44 pin ide8mbfast ramautoconfigboot romcpu socketcompactflashsd cardopen hardware

Adds 8 MB of Fast RAM and a bootable 44-pin IDE controller at the Amiga 500 CPU socket.

The assembled Lotharek revision exposed a login-or-register-to-buy path on 2026-07-27; the original Oleg Mishin design files, ROM, firmware, software, and four-layer PCB are public. The box contains only the board. Kickstart and Workbench 1.3 or newer can autoboot without a patched scsi.device. A socketed CPU makes installation simple, but an unsocketed CPU must be desoldered. Pin 1 must be observed when attaching CF or SD hardware because a reversed adapter can destroy the CPLD. The open repository documents the original A500 design, while the current seller alone claims A500 Plus support for its revised hardware.

Sources
  • Amiga 500 Exact model
  • Amiga 500 Plus Exact model
Lotharek A500 8 MB IDE2Original project filesOptional lide.device firmwareLotharek 44-pin SD-to-IDE adapter
Build itChecked Jul 15, 2026Amiga SCSI Sidecarby Eric Schlaepfer
scsireal time clockautoconfiggalopen hardwarediy

Recreates the Comspec SA-1000 sidecar to add a SCSI bus and real-time clock to an Amiga 1000.

This is a self-assembly project with a schematic, bill of materials, and fabrication package. It requires programmed GALs and ROMs plus careful alignment of the 86-pin edge connector. The alternate RTC-72421 clock chip is suggested but untested.

Sources
  • Amiga 1000 Exact model
Hardware and build files