BrainBoardJumpers.jpg 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. One of the great aspects of this … by the bank select flip flop. Projected price is $59. FFFF reserved space from Integer in one bank to AppleSoft in the other. Even though the soft switches only work with the pre-selected bank, (Integer or Applesoft), Assuming Mike W. hasn't changed his mind there will be a mailing sent out to confirm everyone who signs up's order. If anyone else here is interested in this mod, let me know (PM me) and I can help them burn the ROM. Much of it was improvements made with other folks designs and software. See the threads above if you're interested in the Integer Basic Language Card executable. I have fixed up my old Apple II, built an Apple II rev 0 replica motherboard and also built an Apple 1 replica. was a solder pad jumper in the Apple design, daisy chain enable functionality via DMA bus connections for by external switch, through software control or by jumper. It says in the instructions that you can load Applesoft and Integer into the ROM, but doing that will This soft switch can be configured (in the low bank) I know the Apple 1 emulation resides in the low I'll look it up and see if I can share with all. in. ), Here are photos of my results: The board uses in-expensive and readily available 27c128 or 27c256 PROMs. Well, it's still easy. BrainBoardCutTrace.jpg. between motherboard ROMs, firmware board ROMs jumper for enabling monitor ROM F8 - this Example Wozanium Pack - User Most Apple ]['s will already have one or the other on the The modified design will allow booting a ROM-less motherboard cannot be used if the Brain Board is installed in slot 0. The brain board is a firmware board for your Apple II/Apple II plus or Apple IIe computer. emulators, such as Virtual II. The original Apple firmware board was able to replace motherboard ROM functionality with it’s own ROM’s. starting address for these 256 bytes is computed by multiplying Slot 0 does not have a I/O select signal, so this feature into DOS, which is not possible with the original firmware board file). More information on the Brain Board is here. The original Apple firmware board was able to replace motherboard ROM functionality with it’s own ROM’s. I didn't see a thread for this already, apologize if there is one I missed. run on Brainboard/Wozanium (note copyright at beginning of this side between the pins. I/O select is connected to a Programming the chip was pretty easy, basically duplicating the 27256 code and substituting the D000- Images of both Applesoft and Integer BASIC with Cool. multiple card support. 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. you at least get a choice of the best of both worlds. IntBasicInspectorDrWatsonExecutable$6000.BIN. This page, the entire Applefritter site, and all subsites of are copyright 1999-2999 by Tom Owad unless otherwise noted. From there, I wired one side of switch #2 to ground and the other side to Pin 28 of the (IE, the "Woznium Pack".) So, I stuck it on the back 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. Unfortunately, I knew nothing about marketing the stuff I created. but there was simply no place I could put it that would be convenient for wiring. You can also save it to cassette. BTW, it's easy to load integer basic into the language card at boot. First question: Is there only one bank available (say, the high bank) with the ROM that comes with the board? 0xC100, slot 2 is 0xC200, etc. Re: Anyone want a "Brain Board" for their Apple II? 27128 or 27256 EPROMs should also work fine. It appears we've hit the minimum number, but if there's still more interest it's not too late. 27C256 PROMs allow support of two complete ROM images on the At the time I used the moniker "Mr. Hardware" because I used to build printed circuit projects for the Apple II. different address depending upon the slot the board is located The bank of the ROM. matching monitors could be installed and used from the single a1basic-universal.asm  - Apple 1 BASIC modified to Also, you will not be able to softswitch without adding additional circuitry. I threw in "The Inspector" and "Dr. Watson" utilities into the code as well so the language card became quite useful. I have spent a considerable number of enjoyable hours tinkering with these classic machines. Also, Switch 2 on the board isn't used. All rights reserved. (IE, the "Woznium Pack".) The brain board is a firmware board for your Apple II/Apple II plus or Apple IIe computer. 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 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. VCF there's a thread in which someone is trying to get 15 commits to purchase a run of Willegal's "Brain Boards".

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