you at least get a choice of the best of both worlds. run on Brainboard/Wozanium (note copyright at beginning of this The See the threads above if you're interested in the Integer Basic Language Card executable. I wanted to put the resistor on the top of the board ), Here are photos of my results: PROM. It appears we've hit the minimum number, but if there's still more interest it's not too late. Because of the denser PROMs used, 6 sockets are replaced with one and the resulting size of the board is reduced to under 3 by 4 inches. cut traces, the choice automatically defaults to Inter Basic. BTW, it's easy to load integer basic into the language card at boot. I have fixed up my old Apple II, built an Apple II rev 0 replica motherboard and also built an Apple 1 replica. a2a1emulv5_1.rom - 12K rom file that can be used with A2 Adding a 27C512 should be doable. Because of the denser EPROMs used, 6 sockets are replaced with one and the resulting size of the board is reduced to approximately 2 by 3 inches. a1basic-universal.asm - Apple 1 BASIC modified to The board uses inexpensive and readily available 27c128 or 27c256 PROMs. Unfortunately, I knew nothing about marketing the stuff I created. From there, I wired one side of switch #2 to ground and the other side to Pin 28 of the different address depending upon the slot the board is located (IE, the "Woznium Pack".) was a solder pad jumper in the Apple design, daisy chain enable functionality via DMA bus connections for Doing so required that I cut the trace on Pin 1 of the EPROM and The Brain Board is a firmware card for the II that allows you to do several tricks that are difficult to do otherwise, such as booting up a IIplus or IIe directly into cassette Integer Basic, and it also offers a way to run a mostly-compatible emulation of the Apple I. I did this 35 years ago and I still have the disk I stored it on. Well, it's still easy. 27C256 PROMs allow support of two complete ROM images on the I threw in "The Inspector" and "Dr. Watson" utilities into the code as well so the language card became quite useful. Even though the soft switches only work with the pre-selected bank, (Integer or Applesoft), and a customized (say) Applesoft all contained in the ROM. The modified design will allow booting a ROM-less motherboard All rights reserved. Example Wozanium Pack - User side between the pins. (since it was a natural progression from the APPLE 1. Programming the chip was pretty easy, basically duplicating the 27256 code and substituting the D000- FFFF reserved space from Integer in one bank to AppleSoft in the other. Assuming Mike W. hasn't changed his mind there will be a mailing sent out to confirm everyone who signs up's order. file). This page, the entire Applefritter site, and all subsites of are copyright 1999-2999 by Tom Owad unless otherwise noted. matching monitors could be installed and used from the single This soft switch can be configured Driver, Back to Mike's Hobby clobber the code that's already there. This board is a functional recreation of an original Apple II firmware board that uses inexpensive 27c128 or 27c256 EPROMs. Anyone want a "Brain Board" for their Apple II? 0xC100, slot 2 is 0xC200, etc. Brain Board. The Apple II peripheral bus I/O select signal is connected to BrainBoardCutTrace.jpg. One of the great aspects of this … The board uses in-expensive and readily available 27c128 or 27c256 PROMs. The original Apple firmware board was able to replace motherboard ROM functionality with it’s own ROM’s. Might it be wise to expand the 27C256 EProm to a 27C512 and enable multiple card support. I added a 27512 in place of the 27256 EPROM. cannot be used if the Brain Board is installed in slot 0. starting address for these 256 bytes is computed by multiplying in. I didn't see a thread for this already, apologize if there is one I missed. Usually, you will have either integer or AppleSoft BASIC on the motherboard, so not much benefit in adding two more banks unless you have something specific in mind. The original Apple firmware board was able to replace motherboard ROM functionality with it’s own ROM’s. bank of the ROM. BrainBoardJumpers.jpg Home Page, a software controlled switch (soft switch) for changing (in the low bank) I know the Apple 1 emulation resides in the low VCF there's a thread in which someone is trying to get 15 commits to purchase a run of Willegal's "Brain Boards". More information on the Brain Board is here. by external switch, through software control or by jumper. between motherboard ROMs, firmware board ROMs jumper for enabling monitor ROM F8 - this but there was simply no place I could put it that would be convenient for wiring. As of today it's up to about ten commits, just need a few more to get the presses running. I made sure that for all boards without If you load this code at location A$6000, L$2869 then execute this code, it will automagically load your 16K Card with Integer basic along with Inspector/Dr Watson. Also, you will not be able to softswitch without adding additional circuitry. (IE, the "Woznium Pack".) 27128 or 27256 EPROMs should also work fine. EPROM. I put this together over 35 years ago when I was a much better coder. Cool. 0x100 by the slot number and adding 0xC000. Apple, the Apple logo, Macintosh, Mac, MacOS, MacBook, iMac, and Mac Pro are trademarks of Apple Computer, Inc. LEGO®is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this site (the feeling's mutual). An extra soft switch is used to select whether the high or low IntBasicInspectorDrWatsonExecutable$6000.BIN. If you're a VCF member you can reply to the thread there, otherwise you can PM me a name and email address here and I'll be willing to pass it along. So, I stuck it on the back If anyone else here is interested in this mod, let me know (PM me) and I can help them burn the ROM. Mine came in today. emulators, such as Virtual II. You can also save it to cassette. Because of the denser PROMs used, 6 sockets are replaced with one and the resulting size of the board is reduced to under 3 by 4 inches. motherboard. Re: Anyone want a "Brain Board" for their Apple II? adding a resistor between Pin 1 and Pin 28 of the chip. Anyway: Over on the VCF there's a thread in which someone is trying to get 15 commits to purchase a run of Willegal's "Brain Boards". Most Apple ]['s will already have one or the other on the I'll look it up and see if I can share with all. I have spent a considerable number of enjoyable hours tinkering with these classic machines. the lowest 256 bytes of the PROM bank that is currently selected The Brain Board is a firmware card for the II that allows you to do several tricks that are difficult to do otherwise, such as booting up a IIplus or IIe directly into cassette Integer Basic, and it also offers a way to run a mostly-compatible emulation of the Apple I. More information on the Brain Board is here. Thus slot 1 is Images of both Applesoft and Integer BASIC with If you want one yell out loud in the VCF thread. Slot 0 does not have a I/O select signal, so this feature At the time I used the moniker "Mr. Hardware" because I used to build printed circuit projects for the Apple II. It says in the instructions that you can load Applesoft and Integer into the ROM, but doing that will The brain board is a firmware board for your Apple II/Apple II plus or Apple IIe computer. I created an executable that loads at location $6000 that when run, executes a move routine to load up the language card. into DOS, which is not possible with the original firmware board Exploring Apple GS/OS and ProDOS 8 by Gary Little, Apple iic not formatting or duplicating disks, IIGS - chirp sound when I shut off power supply. If you do happen to find the code for loading up Integer in a language card via cassette you should totally post it. Projected price is $59. BrainBoard_27512.jpg Also, Switch 2 on the board isn't used. The brain board is a firmware board for your Apple II/Apple II plus or Apple IIe computer. Would have loved a Brain board back then ... EDIT: Here is the integer basic code (BIN file). (using switch #2) That way, you can actually have Apple 1 emulation, Applesoft, Integer, I/O select is connected to a Finally getting to the ROM burning task. First question: Is there only one bank available (say, the high bank) with the ROM that comes with the board? There actually was a guy on here asking a few months ago if there was some way he could run Integer basic programs via cassette loading on a IIe, presumably that's pretty much the same problem. I'll shout out for 1 board. by the bank select flip flop. half of the PROM is in use. that last address pin? Much of it was improvements made with other folks designs and software.