KIM-1 Debugging tool

[Santo Nucifora]

Count me in for one set of boards.

On Sun, Nov 13, 2016 at 10:52 AM, dwight <dkelvey at hotmail.com> wrote:

>
> I've started a new thread.
>
> See:
>
>
> http://www.vcfed.org/forum/showthread.php?54850-Debugging-a-KIM-1-computer
>
>
> I've created a simple debugging board that one can plug onto the KIM's
> expansion buss that has debug code on it. It allows one to find out what is
> failing on the KIM so they know what to replace.
>
> While developing it, I found that my 6530-002 is bad. As we all know,
> these are custom made and no longer available. There is a similar part, the
> 6532 that is similar, without ROM.
>
> It can be used with an adapter. I've reviewed both specifications and
> believe I've figured out how to do it. Others have made them that are
> configured for the Gottlieb pinball machines but they will not work for the
> KIM because the KIM selects are configured differently.
>
> I've begun making a hand wired adapter with a EEPROM. This will be in a
> stacked socket under the 6532. I expect to use the debug board to program
> it in place.
>
> After verifying that every thing works, I may create PC boards for the
> debug and 6532 adapter.
>
> I know there are a number of dead KIM-1s out there.
>
> I'm looking to see how many people would be interested in buying a set of
> boards? I'm thinking in the range of $10 to $20 someplace, depending on
> volume. I expect to have two small boards for each adapter and one for the
> debug board. I'll most likely have them made as a set to save cost.
>
> I can populate the adapter boards with the SOIC parts and leave the rest
> to the person buying the boards.
>
> Please let me know how many people would be interested??
>
> Dwight
>
>
>
> Dwight
>
>
> Debugging a KIM-1 computer<http://www.vcfed.org/
> forum/showthread.php?54850-Debugging-a-KIM-1-computer>
> www.vcfed.org
> This is a discussion forum about vintage computer collecting, use,
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>
>
>
>
> ________________________________
> From: cctalk <cctalk-bounces at classiccmp.org> on behalf of dwight <
> dkelvey at hotmail.com>
> Sent: Monday, November 7, 2016 6:19:25 AM
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: KIM-1 Debugging tool
>
> I still need to post the final schematic. A new thread might be a good
>
> idea.
>
> I wanted to keep the board as simple as possible so one could just
>
> wire wrap or point to point it.
>
> It only has a 7474, 7402 and a 7404 as well as the EPROM.
>
> It could easily be done with a GAL or PAL and the EPROM.
>
> I think two schematics showing each would be best.
>
> Dwight
>
>
> ________________________________
> From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Ali <
> cctalk at ibm51xx.net>
> Sent: Sunday, November 6, 2016 10:25:16 PM
> To: 'General Discussion: On-Topic and Off-Topic Posts'
> Subject: RE: KIM-1 Debugging tool
>
> > I've been making a debugging ROM board to test out the various
> >
> > parts of the KIM-1. It is based on taking over the KIM at reset
> >
> > and running test.
> >
> > So far I've got two test working. One is a basic, is it running test
> >
> > that just blinks a light on the debug board.
> >
> > The next is a test of the first 1K of RAM.
> >
> > A little tricky to do without RAM.
> >
> > I expect to write some more for the RRIOT ics.
> >
> > If anyone has interest, they can follow me on the Vintage
> >
> > Computer Forum or contact me here.
> >
> > The board has 3 ttl ICs, a 2764/27128 EPROM, a couple
> >
> > LEDs and a dip switch. Also a few pullup resistors and capacitors.
> >
> > Dwight
>
>
> Dwight,
>
> That is a pretty cool project. May I suggest you break it out on VCF into
> its own thread so people can more easily follow what is going on? For those
> interested in the original thread:
> http://www.vcfed.org/forum/showthread.php?52155-KIM-1-No-Action/
> KIM-1 No Action<http://www.vcfed.org/forum/showthread.php?52155-
> KIM-1-No-Action/>
> www.vcfed.org
> This is a discussion forum about vintage computer collecting, use,
> restoration and display powered by vBulletin. To find out about vBulletin,
> go to http://www.vbulletin.com/ .
>
>
>
>
> -Ali
>
>