By replacing the ROM(s) of a Commodore 1541 disk drive it can be made in a KIM-1.
Well, it runs the KIM-1 ROM modified to use the 6522 driving the IEC bus as TTY serial input/output.
The ROM is also moved to E000 for obvious reasons (the 1541 is unchanged!).
Only serial TTY, no LED, no keypad (code removed), no application or expansion connector.
Tiny basic in the other 1541 ROM socket also runs.
But it behaves like a KIM-1, as Dave McMurtrie shows in the video!
This is a first step to a KIM-1 with a 6522 instead of the 6530 or 6532.
(drawing by netzherpes)
See also:
KIM-1 connectors: beware the Chinese cheap variants!
The KIM-1 needs 2 edge connectors.
The specifications are: card edge; PIN: 44; 3.96mm
When you search for those, ...
Magazines: Compute! and Compute II
The pages om Magazines had an update.
MICRO has its own page with all Best of MICRO pfds.
Compute! and Compute II ar...
All documents in the MTU pages are now clean and higher quality, about 50 new PDFs.
I got hold a about 10 cm of MTU documents. Several I already had in PDF format, some not available yet.
I took the oppo...
Focal-65 V3D for TIM and KIM-1
Focal on the 6502, a page on this small language, originating for Digital Equipment.
A small interpreter (about 5K) for...