The Brain Board II is a slot card for the Apple II, II+, and IIe computers. It allows use of the Wozaniam pack to mimic Apple-1 Operation (including Cassette interface), as well as provides a user ROM area which can be used to boot Integer BASIC among other possibilities.
Normal operation is the same if you follow the quick start guide from the original Brain Board manual. bb-v5_1.pdf is provided in this repository, but for convenience, these are the 2 most common settings.
DIP2 doesn't matter, the wozaniam pack is in the same relative location in both banks that this DIP controls (in the standard/provided Integer + Applesoft ROM in this repo)
In this mode, the back toggle will still enable Wozaniam when up, but when flipped down, it will boot either Applesoft or Integer BASIC from the Brainboard's ROM depending on the position of DIP2. DIP2 was unused in the original Brainboard design/documentation. If you do not need Apple II Integer basic, the first config is most compatible with other expansion cards and accessories. The second config makes the brain board more versatile but may cause conflict with some expansion cards.
In this mode, the system ROMS are entirely on the Brain Board (this is done by inverting switches 3/4 from the previous settings). This means that you should be able to run a board with no onboard ROMs in theory.
**The 'Forum Pack' directory has everything you need to get a card manufactured, and to program your ROM presuming you have an EPROM programmer. A TL-866 or TOP-3000 etc is sufficient. Within that directory you will find:**
**Beta_4_gerbers.zip** - Can be uploaded directy to PCBWAY to get your own PCBs fabricated. Use their option to bevel the edge connectors, and if they ask you if they can trim a little length from the edge fingers that is fine. Alternately I have uploaded the project to their site, and I receive a small commission if you want to purchase unpopulated PCB's via this link: https://www.pcbway.com/project/shareproject/Brain_Board_][_For_Apple_II_computers_d632392b.html
**BrainBoard_512_Beta_4.zip** - Osmond Project (Free PCB editor software), can be opened in the program OSMOND and modified. Delete AUX2 layer after you export Gerbers, AUX1 is board outline.
**CO.512.SuperBrain_Board AppleSoftInteger.BIN** - Burn to a 27C512 or SST 27SF512 ROM. Contains the ROM necessary for both of the above configurations (SETTING 1, SETTING 2).
Other files found in this repository are copies of Mikes original code/design to keep it together under GPL, and the original photos/documentation of the ROM mod by Macnoyd from which this hardware revision was derived.