[Coco] A question for all you hardware hackers out there...

[Matthew Stock]

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> .
>
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