[Coco] Adapting a V9958 64-pin Chip to fit a Solderless Breadboard

[Luis Antoniosi (CoCoDemus)]

As I cannot wait too much I made and ordered my own sdip-64 adpater:

http://oshpark.com/shared_projects/zN3E5tjb

You just solder a sdip-64 socket on top and two 1-row headers males on
bottom. I will receive 3 but I will use only one. If anyone is
interested. It costed me 20 dollars for 3 boards.



On Mon, Dec 2, 2013 at 11:04 PM, Kip Koon <computerdoc at sc.rr.com> wrote:
> Hi Jim!
> Sorry I did not get back with you.  I have created an adaptor for the V9958
> or for that matter any SDIP64 style chip to fit in a breadboard.  I have not
> fabricated one yet as it would be a while before I got that far in the build
> of my Kipper computer.  If you need one, I can go ahead and have them made.
> Someone else is interested in this adaptor also.  How different is the V9990
> to the V9958.  I thought the V9990 had the same physical specifications.  I
> have had a couple on hand for a while too, but I have not had a chance to
> use them yet.  What makes the V9990 easier to use?  I'd be very interested
> to see what you have found out about the V9990.  I'm very interested in your
> Coco Internal modifications utilizing this chip.  Would you consider sharing
> you design once you have completed it?  I have a problem with a very simple
> modification that I've been working on myself that is proving to be kind of
> difficult.  I'd like to share it with you sometime and get a pearl of wisdom
> from you.  Thank you in advance.  Take care my friend.
> Kip
>
> -----Original Message-----
> From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
> Behalf Of iggybeans at comcast.net
> Sent: Thursday, November 28, 2013 8:36 PM
> To: Coco at maltedmedia.com
> Subject: Re: [Coco] Adapting a V9958 64-pin Chip to fit a Solderless
> Breadboard
>
> Yes, the V9958 is an SDIP with closer spacing on the pins than breadboards
> are designed for.
> I'm surprised Kip didn't contact me about that, since I've had them on hand
> for a couple months now.
> I've actually found it easier to use the more advanced V9990, since I can
> mount that to a carrier board that has standard spacing.
> While an complicated solution, a similar carrier board could be designed for
> the V9958.
> Or the VDP could be mounted on a separate surface and wire wrapped into an
> breadboard design.
>
> In any case, I'd highly recommend Yamaha VDPs for 80 column projects (and to
> experiment with Sprite fraphics and the other included functions).
> These chips should lend themselves to use in a pak.
> Right now, I'm considering a more complicated internal modification.
>
> I hope you guys post your progress. it should prove interesting.
>
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