[Coco] CoCo Altera DE1 interface

[Gustavo Ranaur Schoenaker]

Hi

While browsing in OSHPark I found two projects: CoCo Buffer (
https://oshpark.com/shared_projects/1qtqcHjF) and Slot Extender (
https://oshpark.com/shared_projects/ixlqJKlZ).

Looking on the old posts of the list I think the first one was made by
Mathew. (are you there, Matt? :)

Does anyone used it? Is there any project example to connect the Altera
FPGA with the CoCo? I would love to try it,

On Fri, Oct 31, 2014 at 12:41 PM, Matthew Stock <stock at bexkat.com> wrote:

> Hi Tim,
>
> I don't have any on hand, but if you can solder the fine pitch chips you
> can order them from Digikey and OSHPark directly.  I can order and assemble
> them too if you prefer, but it will be more expensive that way.  Send me a
> note directly if you want to discuss either option: stock at bexkat.com.
>
> This little buffer interface is useful for non-Altera boards, but the
> pinout allows you to take a normal 40-pin ribbon cable and plug it from
> Coco to DE1 without any fuss.  It's been really handy for my projects and
> tinkering.
>   -Matt
>
>
> On Fri, Oct 31, 2014 at 10:29 AM, tim at franklinlabs.com <
> tim at franklinlabs.com
> > wrote:
>
> > Yeah, at this point it's the LE count. I don't need 1/3 of the I/O. I'm
> > really
> > not sure yet on the LE count either. Just thinking ahead. I haven't
> > prototyped
> > the design yet but I will using a DE-1. I am planning on using the
> Cyclone
> > series on the final design.
> >
> > I need to get in touch with Matt Stock (CoCo e-mail participant). He was
> > selling
> > a DE-1 interface board at one point. I found his board on OSH Park. If
> he's
> > still around and reading this... Can I still get one or two of those
> > boards??????
> >
> >
> >
> >
> >
> >
> > > On October 31, 2014 at 9:09 AM Mark McDougall <msmcdoug at iinet.net.au>
> > wrote:
> > >
> > >
> > > On 31/10/2014 3:42 AM, tim at franklinlabs.com wrote:
> > >
> > > > I actually haven't chosen the actual FPGA yet because I'm not sure
> how
> > much
> > > > LE
> > > > space I need. I was considering a small Cyclone III or equivalent.
> The
> > one I
> > > > was
> > > > looking at I thought was 264 pins but it actually was 408.
> > >
> > > Wow, do you *need* that much I/O for your project? Or is it a case of
> the
> > > smallest package for that many LE's?
> > >
> > > I've done TQFP soldering by hand, but I think that was 144-pin, and
> > quite a
> > > few years ago before my sight started failing me. It's not as hard as
> > you'd
> > > think as the solder tends to stick to the pin/pad.
> > >
> > > I've got a homebrew project now with a PQFP 240-pin Cyclone III and I'm
> > not
> > > going to stuff around with, I'll bite the bullet and get it assembled -
> > > probably a run of 8.
> > >
> > > Regards,
> > >
> > > --
> > > | Mark McDougall | "Electrical Engineers do it
> > > | <http://members.iinet.net.au/~msmcdoug> | with less resistance!"
> > >
> > > --
> > > Coco mailing list
> > > Coco at maltedmedia.com
> > > https://pairlist5.pair.net/mailman/listinfo/coco
> > mattstock <https://oshpark.com/profiles/mattstock> .
> >
> > --
> > Coco mailing list
> > Coco at maltedmedia.com
> > https://pairlist5.pair.net/mailman/listinfo/coco
> >
>
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