cbmSD family of SD Card Drives for Commodore Computers with IEEE
================================================================

The goal of this project is to create free open-source disk drive
solutions that are easy to build using all thru-hole parts plus
the use of a common inexpensive SD card module.

There are several variations depending on your usage:

1) cbmSD  (In development)
           A full solution providing both IEEE and IEC ports.
           For use on PET/CBM and most Commodore 8-bit machines.
           Direct-plug for IEEE but can connect to IEC devices
           with standard IEC cable.

2) cbmSD-mini
           Direct-plug solutions for PET/CBM machines with IEEE.
           With IEEE pass-thru.

3) cbmSD-xd
           Proprietary cable solution for PET/CBM machines.
           Several Pass-thru boards connect to back of computer, with ribbon cable to SD card board.
           No expensive IEEE cable required.

You will need a simple cassette port power plug or you can
power it with a standard 5V adapter with barrel jack.


Project Page
------------

http://www.cbmsteve.ca/cbmsd/index.html


Status
------

DEVICE     VER   DATE       STATUS

cbmSD      -     -          In development. Requires firmware changes
cbmSD-mini 1.2   2024-02-21 Working
cbmSD-mini 1.2v  2024-07-30 Working. Vertical mounting option.
cbmSD-xd   1.0   2024-11-18 Working. Requires cbmSD-pass board.
pass-e2e   1.0   2024-11-18 Working. Edge-2-Edge
pass-e2c   1.0   1014-11-22 Working. Edge-2-Centronics female
pass-c2e   1.0   2025-12-01 Untested. Centronics-2-Edge

Steve
2025-12-14