Didier form aida.org was approached by his friend Erik about a malfunctioning MPS-65.
By studying the material on this page and doing measurements on the board it was decided the PROM on the board was malfunctioning.
So Didier designed a GAL replacement for the PROM and the board came back to life!
Here the story how the design looks like.
See also:
Suppress KIM echo
A new article in English, but in fact an article from May 1979 in Dutch: how to suppress the KIM-1 hardware echo.
A new article in English, but in fact an article from May 1979 in Dutch: how to suppress the KIM-1 hardware echo.
Convert to Papertape V2.2
On the Utilities page I have two programs to convert to MOS Technology papertape format: KIMpaper, a command line utilit...
On the Utilities page I have two programs to convert to MOS Technology papertape format: KIMpaper, a command line utilit...
PC utilities updated
The PC utilities page has seen an update of th4 Conversion hex formats utility. Programs to manipulate the binary and...
The PC utilities page has seen an update of th4 Conversion hex formats utility. Programs to manipulate the binary and...
Kowalski assembler and simulator
A 6502, 65C02, 65816 assembler and simulator. Original (with Polish help) by Michal Kowalski, 65816 extensions with Engl...
A 6502, 65C02, 65816 assembler and simulator. Original (with Polish help) by Michal Kowalski, 65816 extensions with Engl...