A homebrew Motorola 68000 computer built by [maniek86] features a PCI bus implemented via a Xilinx Spartan II FPGA (XC2S100), providing two 32-bit 5V interrupt-capable PCI slots. The 10 MHz 68K system includes 1 MB SRAM, 4 KB ROM, and a MC68681P UART, with a XC95144XL CPLD handling glue logic. The build interfaces with various PCI cards including a serial expansion and Cirrus VGA adapter.
Background
The Motorola 68000 is a classic 16/32-bit RISC microprocessor popular in the 1980s-90s, used in Apple Macintosh, Amiga, and Atari systems. PCI bus implementation on non-x86 homebrew projects is rare and represents a significant engineering challenge.
- Source
- Lobsters
- Published
- Aug 22, 2026 at 04:24 AM
- Score
- 6.0 / 10