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donmck

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Joined: 09/06/2011
Location: Australia
Posts: 1310

Posted: 08:21pm 25 Jun 2011

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I/O Board Addressing for Bus Cable Interfacing.

Proposed plan to do board addressing on the Maximite.

This means hooking up the signals that matter on an I/O board, to the MM Bus signals.

I have used other methods in the past, such as plugging a driver chip into one of four socket positions.

But this uses up more components, and more real estate, and is not as flexible, as the plan I have outlined here.

http://www.themaximitecomputer.com/maximite-io-board-address ing-for-bus-cable-interfacing/

I welcome all comments.

Please bear in mind, if you don't like this, then please give me your alternative, and we can start kicking that around.

If you do like it, but have suggestions on possibly better ways of implementing it, then let us know, and we can kick that around too.

If we can "Move Forward" (Credit-Joolia) with this, I can then outline our first prototype board, which I am already mapping out, but held up by board addressing.

Design by committee is like playing with dynamite (Maximite?), a very dangerous thing to do, but I'm young, I can take it.

Cheers Don...

https://www.32v8.com/1

Keith @

Senior Member

Joined: 19/06/2011
Location: Australia
Posts: 167

Posted: 09:00am 26 Jun 2011

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Hi Don

Good idea ... after starting on my 240v remote switch using a real breadboard ( not the PCB type )... I spent a lot of time striping and tinning the ends of the individual wires on the ribbon cable to plug into the breadboard. I realise I could have just used the wires I needed but I did all of them so I could experiment more later.

I thought the wires for Pin 1 to 20 would just come out in order but instead they ended up crossing over one another.

Really need a means of getting these pins out in some order. May I suggest a PCB with the 26pin male PCB connector on one side and a strip of molex pins on the other side which plugs into a real breadboard or a PCB breadboard as well.

cheers
Keith

The more we know, the more we know we don't know !

donmck

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Joined: 09/06/2011
Location: Australia
Posts: 1310

Posted: 09:35am 26 Jun 2011

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Keith @ said Hi Don
Good idea ... after starting on my 240v remote switch using a real breadboard ( not the PCB type )... I spent a lot of time striping and tinning the ends of the individual wires on the ribbon cable to plug into the breadboard. I realise I could have just used the wires I needed but I did all of them so I could experiment more later.

Really need a means of getting these pins out in some order. May I suggest a PCB with the 26pin male PCB connector on one side and a strip of molex pins on the other side which plugs into a real breadboard or a PCB breadboard as well.

cheers
Keith

Prompted by your message Keith, I decided to bring users a little more up to date with a few pictures of where we are heading.

http://www.themaximitecomputer.com/maximite-io-board-address ing-for-bus-cable-interfacing/

A lot of ideas have changed as we have kicked ideas around, so much of the text is now out of date.

Cheers Don...

https://www.32v8.com/1

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