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

[Kip Koon]

Hi Luis!
I apologize for dropping the ball on this one.  I hope you board works well
for you.  Take care my friend.
Kip

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
Behalf Of Luis Antoniosi (CoCoDemus)
Sent: Thursday, December 05, 2013 10:53 PM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] Adapting a V9958 64-pin Chip to fit a Solderless
Breadboard

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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