GBGPI General Purpose Interface

PRELIMINARY INFORMATION ONLY
 
 

Key Features:      12 Channel 8bit High Speed ADC      8 Channel 8bit Buffered DAC      32KB of Internal Flash Program ROM      1KB of Internal Flash Data Store      Dual Boot Mode for Reprogramming      No Programmer Required      Rail to Rail Inputs and Outputs (0 to 5V)      Standard D25 Output Connector      6hrs Operation from NiMH Batteries      'C' Development Library for GBDK      Fits into standard games cartridge

Please note although I have finished this project is it is currently on hold until a magazine makes me an offer I can't refuse or a large project comes along requiring some units to be made. Until then I'm afraid I cannot provide any units and shall not be making the circuits or firmware publicly available.
Sorry...
 

Introduction

The GameBoy general purpose interface 'GBGPI' converts a GBpocket or
GBcolour into a multipurpose programmable development platform. The software defined input and output port interface enables connection to a wide variety of sensors and control devices. Making GBGPI ideal for robotics, home control or portable development projects.

The dual boot internal flash ROM allows you to develop and simulate programs on your PC, then download them via the game link port to the GBGPI cartridge, eliminating the need for a dedicated programmer. Once programmed simply flip the boot switch and your ready to go!

A library of interface modules are provided and can be added to the 'C' compiler - GBDK allowing connection to analogue, logic, thermistor, RTC and many more sensor devices.  The use of a high level development language makes programming easier to understand and readable to others.
 
 

GBGPI Development Projects

Projects currently under development using the GBGPI interface are,
 
 

Shell Mileage Marathon Engine Management System

Boiler Heater Controller

 

GBGPI Status
Hardware development of the GBGPI cart and standard 'C' libraries are now complete.  Development of the flash programming interface is still on going but should be up and running by Jan 2000. Further sensor interface libraries will also follow.

The users manual can be seen here GBGPI11.htm ver 1.1

The aim is to make a fully assembled cart available in the future if I have any free time.