[Color Computer] Re: [Coco] CoCo and SATA/USB drives.
James Diffendaffer
jdiffendaffer at yahoo.com
Thu May 25 01:00:06 EDT 2006
I didn't post a schematic, just links to the chips and a description
of the connections. You should be able to draw up a schematic for
most of the circuit easy enough. The address decoding uses a 3 to 8
decoder so you can select what address it's at. At least that was the
intention. I hope that was the final version. It is untested so no
promises that I didn't mess up the active state of any lines.
http://groups.yahoo.com/group/ColorComputer/message/3109
http://groups.yahoo.com/group/ColorComputer/message/3115
The sample scematic for the USB chip would be needed to complete the
circuit since I didn't include that part of the circuit. The USB chip
is the cypris SL811HS.
http://www.cypress.com/portal/server.pt?space=CommunityPage&control=SetCommunity&CommunityID=209&PageID=259&fid=10&rpn=SL811HS
Oh, and I think the Coco 5v line needed to be reduced to 3.3v to power
the SL811HS. It is 5v tolerant for signals so nothing else should be
a problem.
--- In ColorComputer at yahoogroups.com, Rudolf Gutlich <inforvale at ...>
wrote:
>
> Hello,
>
> where do I find info about this schematics?
>
> []s
> Rudolf
>
> --- ColorComputer at yahoogroups.com escreveu:
>
> > From: "James Diffendaffer"
> > jdiffendaffer at ...
> > Date: Wed May 24, 2006 1:49pm(PDT)
> > Subject: [Coco] CoCo and SATA/USB drives.
> >
> > Um... what James said.
> >
> > Even standard IDE DMA modes are way faster than the
> > Coco could handle
> > let alone SATA 150 or 300. I do like the new
> > cabling though!
> >
> > USB 1.1 is as fast as a Coco can really use. It's
> > been done on other
> > 8 bits. But more importantly... it needs drivers.
> > Unless
> > I/you/someone wants to rewrite Coco DOS or write OS9
> > drivers you can
> > show it off with test programs and that's about it.
> > I know dit about
> > OS9 but I'd love to rewrite CocoDOS... right after I
> > finish about 100
> > other projects that are half completed.
> >
> > I posted a description of what I thought the address
> > decoding circuit
> > and buss adaptation to the required USB chip whould
> > be. It was
> > standard parts. Feel free to look it up, ask
> > questions, criticize,
> > correct or whatever.
> > I'd love to see someone build one but I haven't had
> > time.
> >
>
>
>
>
> _______________________________________________________
> Abra sua conta no Yahoo! Mail: 1GB de espaço, alertas de e-mail no
celular e anti-spam realmente eficaz.
> http://br.info.mail.yahoo.com/
>
------------------------ Yahoo! Groups Sponsor --------------------~-->
Everything you need is one click away. Make Yahoo! your home page now.
http://us.click.yahoo.com/AHchtC/4FxNAA/yQLSAA/CFFolB/TM
--------------------------------------------------------------------~->
Brought to you by the 6809, the 6803 and their cousins!
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/ColorComputer/
<*> To unsubscribe from this group, send an email to:
ColorComputer-unsubscribe at yahoogroups.com
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
More information about the Coco
mailing list