[Coco] Adventures in Pin Numbering

[Salvador Garcia]

Mark, do you plan on making this adapter available sometime in the future? Thanks

Salvador

      From: Mark J. Blair <nf6x at nf6x.net>
 To: CoCoList Computer Enthusiasts <coco at maltedmedia.com> 
 Sent: Thursday, August 25, 2016 1:25 AM
 Subject: [Coco] Adventures in Pin Numbering
   
So, I made this here fancy CoCo cartridge port breakout adapter, complete with overkill grounding ear connections:

https://twitter.com/nf6x/status/768671764771590144
https://twitter.com/nf6x/status/768671871680196608
https://twitter.com/nf6x/status/768671982976061440

Then I learned that Tandy and 3M don't agree about pin numbering on a card edge connector. 3M numbers their IDC ribbon card edge sockets to match the pin numbering of an IDC header on the same cable. Tandy, however, swaps the odd and even pins in the CoCo's documented cartridge port pin numbering.

I guess I'll be assembling version 2 in a couple of weeks.


-- 
Mark J. Blair, NF6X <nf6x at nf6x.net>
http://www.nf6x.net/


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