[Coco] Kipper SBC v1.1

[Joe Grubbs]

So with this design, if I wanted a serial port I'd have to build a board with a uart and max232 and connect it to the Kipper bus?


> From: computerdoc at sc.rr.com
> To: coco at maltedmedia.com
> Date: Wed, 11 Mar 2015 09:07:17 -0400
> Subject: [Coco] Kipper SBC v1.1
> 
> Hi Guys,
> 
> I have added the Video Display Terminal and PS/2 Keyboard to the MC68B50
> ACIA chip and removed the MAX-232 Voltage Translator chip and the RS-232
> connector since the Terminal/Keyboard use the MC68B50 chip to communicate
> serially with the host.  
> 
> I added the mod for the !RTS line, but with the connector gone, I'm not sure
> if it is needed any more.  Perhaps someone less tired than I can verify if
> it's still needed.
> 
> I divided the $A000-BFFF into eight separate sections, so now what was the
> RS-232 port that is now the Terminal/Keyboard is addressed at $A000-$A1FF.
> This leaves partially decoded address space for 7 other devices.
> 
> Here are the links to the pdfs.  
> 
> Schematic Sheet 1 - Main
> 
> >https://www.dropbox.com/s/dur3q5896vgml4o/Kipper%20SBC%20v1.1%20sch%201.pdf
> ?dl=0>
> 
> Schematic Sheet 2 - Power
> 
> <https://www.dropbox.com/s/0yfbko0a5le691y/Kipper%20SBC%20v1.1%20sch%202.pdf
> ?dl=0>
> 
> Schematic Sheet 3 - Kipper Bus
> 
> <https://www.dropbox.com/s/3bq6rt0wxx93hyu/Kipper%20SBC%20v1.1%20sch%203.pdf
> ?dl=0>
> 
> Schematic Sheet 4 - Terminal/Keyboard
> 
> <https://www.dropbox.com/s/1qn66jt8yqshkmd/Kipper%20SBC%20v1.1%20sch%204.pdf
> ?dl=0>
> 
> PCB Layout
> 
> <https://www.dropbox.com/s/faj0ijqcr4uq7xx/Kipper%20SBC%20v1.1%20brd.pdf?dl=
> 0>
> 
> I'm very tired since I've worked all night so I hope I didn't make any
> mistakes.  I would not mind at all if someone wanted to check my work.  :)
> As always suggestions, corrections, ideas as always welcome.  Now it's time
> for me to go to . zzzzz.  Take care my friends.  
> 
>  
> 
> Kip Koon
> 
>  <mailto:computerdoc at sc.rr.com> computerdoc at sc.rr.com
> 
>  <http://www.cocopedia.com/wiki/index.php/Kip_Koon>
> http://www.cocopedia.com/wiki/index.php/Kip_Koon
> 
>  
> 
>  
> 
> 
> -- 
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco