Z80/Z180 Hardware
Baffa-2 is an educational project that allows the learning of computer hardware from the 8-bit computer designs widely used in the 1980s.
It started as a CP/M Z80 machine on Grant Searle's "CP/M on breadboard" and also as an emulator I wrote to run the original files (ROM and CP/M) but grew into many other projects
More info about Baffa-2 project.
Baffa-2 Basic Kit
Baffa Backplane Lite
Baffa Full Backplane
Default Setup
RomWBW Setup
Colecovision Setup
MSX-1 Setup
MSX-2+ Setup
ZX80/81 Setup
8242 PS/2 Mouse/Keyboard
More info about Baffa-2 MSX-1 homebrew clone project
More info about Baffa-2 MSX-2+ homebrew clone project
More info about Baffa-2 ZX81 homebrew clone project
It started as a CP/M Z80 machine on Grant Searle's "CP/M on breadboard" and also as an emulator I wrote to run the original files (ROM and CP/M) but grew into many other projects
More info about Baffa-2 project.
Setups
Baffa-2 Basic Kit
Baffa Backplane Lite
Baffa Full Backplane
Default Setup
RomWBW Setup
Colecovision Setup
MSX-1 Setup
MSX-2+ Setup
ZX80/81 SetupBackplane Bus Pin Assignments for this project
| Pin | Signal | Pin | Signal |
|---|---|---|---|
| 1 | A0 | 31 | D4 |
| 2 | A1 | 32 | D5 |
| 3 | A2 | 33 | D6 |
| 4 | A3 | 34 | D7 |
| 5 | A4 | 35 | TX |
| 6 | A5 | 36 | RX |
| 7 | A6 | 37 | - |
| 8 | A7 | 38 | !RESET |
| 9 | A8 | 39 | GND |
| 10 | A9 | 40 | VCC |
| 11 | A10 | 41 | !RFSH |
| 12 | A11 | 42 | !RESET2 |
| 13 | A12 | 43 | CLK2 |
| 14 | A13 | 44 | !BUSACK |
| 15 | A14 | 45 | !HALT |
| 16 | A15 | 46 | !BUSRQ |
| 17 | - | 47 | !WAIT |
| 18 | - | 48 | !NMI |
| 19 | !M1 | 49 | - |
| 20 | - | 50 | - |
| 21 | CLK | 51 | - |
| 22 | !INT | 52 | - |
| 23 | !MREQ | 53 | - |
| 24 | !WD | 54 | - |
| 25 | !RD | 55 | - |
| 26 | !IORQ | 56 | - |
| 27 | D0 | 57 | TX2 |
| 28 | D1 | 58 | RX2 |
| 29 | D2 | 59 | - |
| 30 | D3 | 60 | - |
Common Boards
8242 PS/2 Mouse/Keyboard
Boards compatible with Default Roms
Baffa-2 Bios Rom, Grant Searle Bios/Monitor, Small Computer Monitor,...
Boards compatible with ROMWBW System
RomWBW is a ROM-based implementation of CP/M-80 2.2 and Z-System for all RetroBrew Computers Z80/Z180 hardware platforms.
It supports floppy, hard disk (IDE, CF Card, SD Card), Serial drivers (16550-like, ASCI, ACIA, SIO), Video (TMS9918, SY6545, MOS8563, HD6445),
Real time clock drivers (DS1322, BQ4845) and keyboard.
Baffavision Boards - Colecovision compatible videogame
Baffavision is a Colecovision videogame clone running on Baffa-2 Homebrew Computer. It's based on J.B Langston project "Run classic video games on your RC2014" available at Hackaday.
More info about Baffavision.
More info about Baffavision.
Baffa-X Boards - MSX-1 Compatible Computer
Baffa-X is a project to turn Baffa-2 into a MSX-1 Computer. It's based on Brazilian Sharp's HB-8000 (Hotbit) schematics and Beer 202 IDE Board. The projects also uses original Z80 CPU, 64KB RAM and TMS9918 Boards from Baffa-2.
More info about Baffa-2 MSX-1 homebrew clone project
Baffa-X2 Boards - MSX-2+ Compatible Computer
Why have just a MSX-1 when I can keep upgrading it? :D - Baffa-X2 is a project to upgrade Baffa-X into a MSX-2+ Computer.
More info about Baffa-2 MSX-2+ homebrew clone project
Baffa-81 Boards - ZX81 Compatible Computer
Baffa-81 is a Sinclar ZX81 clone on Baffa-2 Homebrew Computer. It's based on Grant Searle's ZX80/81 Project, heavily inspired by Wilco2009's Board (Alejandro Valero) and my own experience after had built it (... and fixed some Zeddies). It uses Z80 CPU and Dual Clock boards from Baffa-2 Basic set and has 32KB RAM, 4K/8K ROM option (ZX80/ZX81) and allows you to use a PS/2 or original keyboard.
More info about Baffa-2 ZX81 homebrew clone project
Single Board Computers
Single Board Computers are a simpler way to experience the capabilities of the Baffa-2 Homebrew Computer. They provide the main features of the "Baffa-2 Default Setup"(Baffa CP/M SBC) and the "Baffa-2 RomWBW Setup"(Baffa-2+ SBC) on a single, ready-to-use board. The Baffa-2+ SBC was created to power the Baffa-2+ Computer.
