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From Motorola 68000 Homebrew Computer Project
The Motorola 68000 Homebrew Computer Project
Contents
History of the Project
I've always wanted to build my own computer system from "scratch", at least to the level of using ICs & the circuit design. I'm not looking to wire wrap individual transistors here lol. I've previously built a Z80-based system, but since I'm mainly a C/C++ programmer I quickly reached the limitations of a 64k address space.
So, this time around I'm designing a 32-bit system with 24-bit (16MB) address bus. I'll be publishing schematics and PCB information as the design progresses and documenting as much as possible here on this wiki.
Hardware
* Note: throughout this site if I use MB/KB/etc. I mean Megabyte/Kilobyte/etc. I will use Mbit/Kbit for Megabits/Kilobits.
CPU - Motorola 68000
ROM - 1MB
RAM - 12MB
Memory Map
Software
Bootloader Operating System/Kernel Updater
Potential Toolchains
GCC 4.5.2 [1] + Binutils 2.21 [2]
Licensing
Other Sources
Documentation & Tutorials
Microprocessor College Lectures: These are good starting point for those new to 68000 hardware design, busses, etc. The good stuff starts around lesson 7 or 8.
Similar Projects
N8VEM: Homebrew Computer Project: Open source design using a Z80 CPU and Eurocard backplane for expansion. Also includes M68K CPU boards and S-100 bus versions.
