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Found 6 results

  1. This is intended as a discussion thread for the Ultimate Cart hardware - an SD-card based multicart for the Atari 8-bit, featuring an altera FPGA and 1 meg of SRAM. If you want to ask me (or someone else) to build you one, you can ask in the pre-orders thread. This is an open-source project and has its own github repository: https://github.com/robinhedwards/UltimateCart The fpga firmware source will follow in the next few days, but for now there are PCB files, programming files for the FPGA and a Bill Of Materials. Everything needed to assemble a board yourself should now be there. If you want to build one yourself and need some help, ask here. Since it features an FPGA, the hardware will allow lots more to be done with the cartridge. Co-processors, hard-disk functionality, other cartridge types (e.g. Corina) and stackable (e.g. SDX+other) carts should all be possible. The JTAG header makes it possible to reprogram the FPGA with a $10 USB blaster. I'm hoping people can get together to implement and discuss this some of this stuff here. Robin
  2. Hi All, Some of you may know me from the Atari 8-bit forum - I've designed a couple of open-source multi-carts for the Atari 8-bit (the UnoCart and UltimateCart). The Atari 8-bit was my childhood home computer, but I picked up a 2600 jr on ebay at xmas, since I fondly remembered playing Combat on a friend's Atari VCS after school. However I thought it would be nice to play some other games and try some of the more recent homebrew creations, and so... Over the last couple of weeks, I've been busy building a version of the UnoCart for the Atari 2600 - The UnoCart-2600. The video below shows it in action (code from a week or so ago - I've renamed it since then!) Like the UnoCart, this is something you can build yourself with minimal soldering. It just requires an off-the-shelf STM32F4-DISCOVERY board, an SD-card breakout board, and a breakout board for the Atari 2600 cartridge slot. Everything can be hooked up with jumper wires. The source code, firmware, breakout-PCB design and (very rough) building instructions are on a new github page for the project: https://github.com/robinhedwards/UnoCart-2600 The cartridge successfully auto-detects and emulates pretty much all the ROM dumps available on AtariMania (with the exception of Pitfall II, since I'm not emulating the DSP stuff). So far, this has just been tested on my Atari 2600 jr - would anybody else be interested in building one and helping me find any remaining bugs in the cartridge emulation? I've got a few cartridge breakout PCBs spare, since that is the only part that is hard to obtain. PM me if interested? Robin
  3. Hi All, This thread is intended for people that want to ask questions about the Ultimate Cart. Due to the good efforts of Santosp, there's a lot of new users that have just got this cartridge - and there are bound to be questions. So this thread is the place to do it. Before posting, it might be worth checking if the answer is in the documentation I've written for the cartridge. A copy of this should be sent out with every cartridge. If you didn't get it, you can download it from: https://github.com/robinhedwards/UltimateCart This covers (briefly) how to use the cartridge, how to update the firmware and how to modify a cartridge case to fit. There is also a technical thread here - intended for people that want to develop for the cartridge, or discuss the technical aspects of it: http://atariage.com/forums/topic/241888-ultimate-cart-sd-multicart-technical-thread/ The technical thread also has some photos of the internals of modified cartridge shell, so might be of interest. There is also a thread where some compilations have been posted: http://atariage.com/forums/topic/242957-ultimate-cart-sd-multicart-info-bits/ Finally, regarding the firmware. There is no need to update it, unless you want to add the new XEX loader functionality. The process is a bit technical, and probably not for everybody. I'm willing to update the firmware for anybody in the UK if they PM me. Perhaps somebody can make the same offer for those in the US? Robin
  4. Hi all, The original shell for my Ultimate Cart was a hacked Atari grey cart shell, which I spray painted blue. Unfortunately the paint has rubbed off a bit, and its now looking rather tatty. So, now that I've got a 3d printer of my very own, I decided to design a shell for the Ultimate Cart. Like the rest of the project, this shell is open-source. I've uploaded both the STL files and the design files (OpenSCAD) to the github site: https://github.com/robinhedwards/UltimateCart/ The shell should fit any PCBs produced using the board files on github. This should be most of the boards out there, with the exception of the redesign by Panos that he used for his later runs (but I think these came with nice shells anyway). If you're not sure, compare your board to the pictures on github - if the connectors and screw holes are in the same places, it should fit. The cart has been tested for fit in my 65XE, and 800XL. Flashjazzcat has been kind enough to test it for me in a XEGS, 800 and 1200XL, and reports it fits well. If you don't have access to a 3d printer, I'm happy to make a few of these for others. This would be using the same printer and filament colours (bronze & red) as the pictures above. The price would be £22 + P&P (£1 to UK, £3 elsewhere). Send me a PM if interested. Robin
  5. Hi All, The Ultimate Cart is an SD-card based multicart for the Atari 8-bit, which I've been developing for the last few months. It allows you to browse the SD card on the atari and launch cartridge images from ROM and CAR files from the menu. The PCB is designed to fit in a standard grey cartridge case (after a bit of modification with some clippers and a file). It supports most ROMs up to 1 megabyte in size, including standard 8k and 16k cartridges, XEGS, AtariMax 1 & 8mbit ROMs, SIC! Cart, Bounty Bob, OSS, SDX & Williams. ROM dumps can be easily converted into CAR format with my conversion utility. To learn more about the hardware and development, the original thread is here. The project is open source. PCB files, programming files and source files will be available on github shortly, and I'll open a technical thread for discussion when this has been done. The hardware includes an FPGA and could be used for a lot more than a multicart - co-processor & SD-card based hard disk are two possible future avenues for development. There is a JTAG header to allow the cartridge firmware to be reprogrammed in the future. Now that I've assembled and tested the second board I think its probably time to open a pre-orders thread so I can get some idea of interest. The price will be £70 (+postage) for the cartridge board (ready to use, but uncased). If you are interested in one, please reply to this thread. At the moment, this is only to give me some idea of numbers and to reserve your place in the queue. It is not a commitment to buy or for me to supply one. I'm not sure how many of these I'm prepared to make, and it may take me some time, so I will contact people as I make the boards, and check they are still interested. Since its open source, I'm hoping some others may make the boards too, and might be able to charge less than me. Initially, I've got 3 more PCBs on the way, and I will prioritise any UK or European orders, since it will be easier to post/return if there are any unexpected teething problems. Beyond that I'll see how much interest there is. Robin
  6. http://www.codesrc.com/mediawiki/index.php?title=SCSI2SD I am considering one of these for my TI. I am using the WHT SCSI card. Anyone have any thoughts on whether it will work or not? What about size limitations?
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