[Coco] [Color Computer] coco ethernet project

Jim Hathaway kg4knb at hat3.net
Mon Apr 27 12:08:12 EDT 2009


A few years back I created an SPI interface for the CoCo using an Atmel
CPLD.  Specificially I built the interface for use with MMC/SD cards, but
using the SPI bus to talk with Ethernet or other micro controllers is not a
problem.
The good thing about SPI is once you have an CoCo to SPI interface you can
hook all sorts of cool things up!


For anyone interested in the project:
http://www.hat3.net/Home/multi-media-card-reader-mmc/mmc-hardware

Jim Hathaway
Web: http://hat3.net


On Fri, Apr 24, 2009 at 12:37 PM, James Dessart <skwirl42 at gmail.com> wrote:

> On 4/24/09, afra at aurigae.demon.co.uk <afra at aurigae.demon.co.uk> wrote:
>
> >  Well I know someone that has bit banged SPI to an MMC/SD card with a
> > 6522VIA on an Acorn Atom (6502 based machine @ 1MHz, also uses the 6847
> btw
> > :). So that would probably be possible using a 6821PIA.
>
> I know I saw someone's project on the CoCo that was interfacing to
> SD/MMC cards, but I don't remember who it was... I believe one of the
> guys who's new at Cloud-9.
>
> --
> James Dessart
> <http://skwirl.com/cody/>
>
> --
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> Coco at maltedmedia.com
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>



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