Mister B

Fachhochschule Karlsruhe University of Technology
Department of Sensor Systems Technology

‚The Game Boy Group‘

THE GAME BOY PROJECT

FH KARLSRUHE - UNIVERSITY OF TECHNOLOGY
DEPARTMENT OF SENSOR SYSTEMS TECHNOLOGY 'THE GAME BOY PROJECT'

TABLE OF C ONTENT S
0. Introduction 0.1. The Game Boy - only a rusty game console ? 0.2. Who are we ? 1. What is inside the Game Boy 1.1. Technical Details 1.2. .Address Overview 1.3. Memory Mapping 1.4. Cartridge types 2. The Project Idea 2.1. What is missing in the GB-hardware ? 3. Building the hardware 3.1. How to connect an Eprom 3.1.1. The GB-Adapter 3.2. The 8255a PI/O - Chip 3.3. How to get the right hardware address 3.4. The GB-I/O interface board 4. Creating the Software 4.1. Software (development) Tools 4.1.1. GBBasic 4.1.2. GBDK 4.1.3. GBDEV Studio 4.1.4. NO$GMB 4.1.5. GBTD & GBMB 4.2. First steps using GB-Basic 4.3. The program 5. APPENDIX 5.1. References 5.2. Downloads 5.2.1. Layouts 5.2.2. Software tools Page 4 Page 4 Page 5 Page 6 Page 6 Page 9 Page 11 Page 11 Page 13 Page 13 Page 14 Page 14 Page 15 Page 17 Page 19 Page 20 Page 22 Page 22 Page 22 Page 22 Page 23 Page 23 Page 23 Page 24 Page 25 Page 26 Page 26 Page 26 Page 26 Page 27

© 'The Game Boy Group'

Page 1

FH KARLSRUHE - UNIVERSITY OF TECHNOLOGY
DEPARTMENT OF SENSOR SYSTEMS TECHNOLOGY 'THE GAME BOY PROJECT'

FIGURE
Figure 0: the ready etched PI/O-board Figure 1: GB Pocket series

INDEX
Page 3 Page 4 Page 5 Page 7 Page 8 Page 9 Page 10 Page 11 Page 13 Page 14 Page 15 Page 16 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 24 Page 25

Figure 2: 'The Game Boy Group' Mirko, Steffen, Rony, Marc (left to right) Figure 3: General hardware schematic Figure 4: Game Boy Internals (CPU section) Figure 5: address overview Figure 0: more detailed addresses overview Figure 1: Inside a cartridge (Type 10h) Figure 2: Game Boy with adapter & ROM Figure 3: GameLink- and GamePak-connector pinout Figure 4: Wiring diagram for a 32kB EPROM Figure