3 times 8 results in 16

Shift Register

Before the first people start using their calculators, don’t panic. It is not about mathematics, but rather the control of 16 LEDs with only 3 wires. And all independently controllable and this only with the help of an 8-bit shift register and a CPLD. A little excursion into the VHDL world.

Tutorial for an external 8x Kernal module for the C64

There are always situations where you need a different kernel for your Commodore C64. Either to test something or because you don’t want to open the computer. And so I had the idea to build such a small plug-in card myself. And for a simple mdoul, it doesn’t even need many parts.

Rebuild of the IEC64W IEEE-488 card for the Commodore C64

Rebuild of the IEC64W IEEE-488 card for the Commodore C64

This article is about the rebuild of an old IEEE-488 interface card for the Commodore C64 and Commodore C128. This card was very useful if you had e.g. the Commodore SFD-1001 floppy which had only one IEEE-488 connector. But also the old CBM floppy drives could be connected to a C64 or C128. Since such hardware is getting rare and hard to get, I rebuilt the board.