[Coco] CoCo SDC Preview

Matthew Stock stock at csgeeks.org
Thu Apr 25 11:39:07 EDT 2013


That's great Darren!  It looks like we're following along similar paths.
Send me a note if you want to collaborate on anything.
  -Matt



On Thu, Apr 25, 2013 at 11:34 AM, Luis Antoniosi (CoCoDemus) <
retrocanada76 at gmail.com> wrote:

> Wow, that's a good project.
>
> Please, put me on the list when is ready :)
>
>
> On Thu, Apr 25, 2013 at 11:22 AM, Darren A <mechacoco at gmail.com> wrote:
>
> > Some of you may recall the FDC emulator project I was working on a
> > couple years ago.  The goal of that project was to allow DriveWire to
> > support programs that talked directly to the floppy controller or used
> > non-standard disk formats.  Unfortunately, I became frustrated by the
> > growing complexity of the design and set it aside.
> >
> > Since then I got my first Arduino and began dabbling with the AVR
> > microcontrollers.  This re-kindled my interest in the FDC emulator, so
> > I adapted some of the old design to run on an Atmega.  Many had stated
> > that they don't like having to tether the CoCo to a PC, so the new
> > design was to target an SD card for storage rather than the DriveWire
> > server.  The project would allow you to place DSK files onto a
> > FAT-formatted SD card and access them from the CoCo.  The Atmega,
> > along with a Xilinx CPLD, provide near-complete emulation of a Tandy
> > WD17x3-based floppy controller and 2 drives, including HALT, NMI, raw
> > track operations and the 300 rpm index pulse.  In addition, an
> > enhanced access mode can be used (with an appropriate driver) for
> > virtual hard drive images and significantly better performance.
> >
> > Over the past few weeks I was able to get a PCB fabricated, and with
> > the generous help of Rogelio Perea I now have 3 functional prototype
> > boards assembled.  I won't be attending the CoCoFest this weekend, but
> > the plan is to send one so it will be available for preview.  Stay
> > tuned…
> >
> > Darren
> >
> > --
> > Coco mailing list
> > Coco at maltedmedia.com
> > http://five.pairlist.net/mailman/listinfo/coco
> >
>
>
>
> --
> Long live the CoCo
>
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>



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