{"product_id":"coco-sdc-for-trs-80-color-computers-v1","title":"CoCo SDC for TRS-80 Color Computers V1","description":"\u003ch1\u003e\n\u003cmeta charset=\"utf-8\"\u003eWhat is the CoCo SDC\u003c\/h1\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe CoCo SDC aims to solve the compatibility problem by combining the traditional “software hook” approach with a robust emulation of the floppy controller in hardware. This dual mode implementation provides excellent performance for the majority of software which “plays by the rules” while adding a high degree of compatibility with those titles that employ floppy-based copy protection schemes or simply choose to use their own floppy drivers. \u003c\/p\u003e\n\u003ch1\u003eFeature Overview \u003c\/h1\u003e\n\u003cp\u003eAn enhanced LBA access mode has also been incorporated into the firmware, allowing the CoCo SDC to go beyond simply emulating floppy disks and interface with virtual hard disk images as large as 2 gigabytes. Two separate disk images (floppy or hard disk) contained on the same SD card may be “connected” simultaneously. \u003cmeta charset=\"utf-8\"\u003eA number of high capacity storage solutions have previously been developed for the CoCo, including a MicroSD card interface, a handful of IDE and SCSI interfaces and the very popular DriveWire server. One drawback of these offerings has been that they aren’t compatible with software that was written to interact directly with a floppy disk controller. This isn’t so much a problem if you are primarily using the CoCo for BASIC programming or running OS9 software. There are however a number of titles (mostly commercial games) that fail to work with those other systems. The CoCo SDC is a home-brew project for the TRS80 Color Computer (CoCo). Darren Atkinson began development in 2009. Originally intended to just add floppy disk controller emulation to a DriveWire connection, that idea expanded over time to include emulating a floppy controller for an SD-card reader with DriveWire server access. The CoCo SDC aims to solve the compatibility problem by combining the traditional “software hook” approach with a robust emulation of the floppy controller in hardware. This dual mode implementation provides excellent performance for the majority of software which “plays by the rules” while adding a high degree of compatibility with those titles that employ floppy-based copy protection schemes or simply choose to use their own floppy drivers. Feature Overview An enhanced LBA access mode has also been incorporated into the firmware, allowing the CoCo SDC to go beyond simply emulating floppy disks and interface with virtual hard disk images as large as 2 gigabytes. Two separate disk images (floppy or hard disk) contained on the same SD card may be “connected” simultaneously. CoCo SDC Revision 3 Board. Also on board is 128K of Flash memory which is divided into 8 banks of 16K. These 16K banks are both hardware and software selectable and occupy the cartridge ROM space from $C000 to $FEFF (or $FDFF for some CoCo modes). One bank of the Flash memory is used to hold the SDC-DOS code which is yet another patched version of Microsoft’s Disk Extended Color BASIC 1.1. 2 | Chapter 1 Included in SDC-DOS are additional commands to mount disk image files on the SD card, program the Flash and execute ROM images contained in the Flash. DriveWire disk support is also included in SDC-DOS.\u003c\/p\u003e\n\u003cp\u003eVersions -\u003c\/p\u003e\n\u003cp\u003eBare Board - Just the bare board. This can be used to do a parts transfer from a previous CoCo SDC.\u003c\/p\u003e\n\u003cp\u003eFull Kit - Contains a board, FDM printed case, completely programmed chips, sockets, resistors, switches, crystals, SD card holder and more. Everything to solder together and go!\u003c\/p\u003e\n\u003cp\u003ePremium Kit - A Full Kit and the Coco Archive SDC image on a flash card\u003c\/p\u003e\n\u003cp\u003eUltimate Kit - Same as Premium Kit, but instead of a FDM case, this is a white Resin case and screws.\u003c\/p\u003e\n\u003cp\u003eResin CocoSDC Case ONLY - Printed in white resin, this is a stylish upgrade to any existing CocoSDC. This is a 2 piece, 3d printed, resin case ONLY. There is nothing inside.\u003c\/p\u003e\n\u003cp\u003eAssembled - A completely assembled and tested CoCo SDC\u003c\/p\u003e\n\u003cp\u003ePremium Assembled - Assembled, and includes the Coco Archive SDC image on a flash card\u003c\/p\u003e\n\u003cp\u003eUltimate Assembled - The Premium Assembled with a Resin case instead of FDM.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e(Prices are higher than the people that originally sold it: Retro Rewind with their CoCo SDC, Boyson Tech with their CoCoSDC and \u003cmeta charset=\"utf-8\"\u003eThe Zippster Zone with their CoCoSDC. I can't speak to any of their reasons for stopping production, but sourcing was a major issue getting these done and the pricing unfortunately reflects it.)\u003c\/p\u003e\n\u003cp\u003e(SD Card is supplied will be equivilent or better than one pictures)\u003c\/p\u003e\n\u003cp\u003e(Created under direct supervision of \u003cmeta charset=\"utf-8\"\u003eDarren Atkinson, PCB produced by 3rd party outside PCB, parts sourced nationally and internationally. Assembled version done completely in-house)\u003c\/p\u003e","brand":"Darren Atkinson","offers":[{"title":"Bare Board","offer_id":46424304943277,"sku":null,"price":7.93,"currency_code":"USD","in_stock":true},{"title":"Full Kit","offer_id":46424304976045,"sku":null,"price":58.68,"currency_code":"USD","in_stock":true},{"title":"Premium Kit","offer_id":46424305008813,"sku":null,"price":78.68,"currency_code":"USD","in_stock":false},{"title":"Ultimate Kit","offer_id":46424305041581,"sku":null,"price":91.68,"currency_code":"USD","in_stock":false},{"title":"Resin CocoSDC Case ONLY","offer_id":46424305074349,"sku":null,"price":35.0,"currency_code":"USD","in_stock":false},{"title":"Assembled","offer_id":46424305107117,"sku":null,"price":83.68,"currency_code":"USD","in_stock":true},{"title":"Premium Assembled","offer_id":46424305139885,"sku":null,"price":103.68,"currency_code":"USD","in_stock":true},{"title":"Ultimate Assembled","offer_id":46424305172653,"sku":null,"price":116.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/c98f31d8-1f2c-43f5-8243-22be4681b6ff.jpg?v=1782421104","url":"https:\/\/shop.tucs-workbench.com\/products\/coco-sdc-for-trs-80-color-computers-v1","provider":"Tuc's Workbench","version":"1.0","type":"link"}