This is my personal testing code to collect information about Game Boy® MBCs and deduce how they work. This code is for ATmega8515, because I had those lying around due to the Game Boy Cart Flasher project, see https://github.com/Tauwasser/GBCartFlasher.
There is one branch per MBC and/or test setup.
All MBC chips are on break-out boards with 0.1" headers. They're directly connected to the relevant
ATmega8515 pins, as indicated in the comment at the top of MBC_Test.c.
All pin groups are then #defined for easy use in functions that are shared between branches.
The main tests are done in the mainloop, which uses a uart to perform individual tests.
Use Atmel Studio v6.1 or later to compile this firmware. You should have at least one .hex file after successful compilation.
Keep in mind the code is evolving, so I usually won't backport changes from later branches to earlier branches without a compelling reason to do so.
There's not a whole lot of documentation beyond what I personally require to kind of know what's going on, so feel free to shoot me an email if you have questions.
This software (except uart.{c,h}) is licensed under the Creative Commons Attribution-ShareAlike 4.0
International License.
Copyright (C) 2015 Tauwasser (tauwasser@tauwasser.eu)
This work is licensed under the Creative Commons Attribution-ShareAlike 4.0
International License.
To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/
or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.
uart.{c,h} were adapted from an old NXP LP21xx project I had lying around which used these UART
functions by R O SoftWare. All in all, just the function prototypes and some macros remain.
Their copyright notice is as follows.
Copyright 2004, R O SoftWare
No guarantees, warrantees, or promises, implied or otherwise.
May be used for hobby or commercial purposes provided copyright
notice remains intact.
I'm not affiliated with Nintendo in any way. I'm not affiliated with R O SoftWare either. Nor with any other company whose chips I might look at using this software.
Game Boy® is a registered trademark by Nintendo. Nintendo® is a registered trademark. All other trademarks are property of their respective owner.