[Coco] Kipper SBC v1.1

[Bill Nobel]

Kip, you should keep 1.1, but the second board is the simple video/keyboard add-on to your bus. Simons circuit as far as I can tell does work. (don’t have a free 328 or 88 to try).

Bill Nobel

> On Mar 11, 2015, at 10:09 PM, Kip Koon <computerdoc at sc.rr.com> wrote:
> 
> Hi Joe, 
>> 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?
> That problem was racing through my mind as I was adding the Terminal/Keyboard onto the Kipper SBC v1.1 PCB.  I of course realized this after the fact.  <sheepish grin here!>  Don't worry though, Kipper SBC v1 still has the MAX232 chip and the RS-232 DB9 female connector. A couple of parts more and the modified !RTS can be on it as well.  
> I really want to put the Terminal/Keyboard on a separate PCB giving the user the option to use either the RS-232 port for PC communications and have a storage possibility via the list command with copy and paste options in Hyperterminal or use the separate Terminal/Keyboard with no storage capability as of yet anyway.  Maybe some type of switching on the fly between the RS-232 port and the Terminal/Keyboard could be devised or how about I add the MAX232 chip and the RS-232 DB9 Female connector back in with both options connected together and just use one at a time.  Thoughts?
> 
> Kip Koon
> computerdoc at sc.rr.com
> http://www.cocopedia.com/wiki/index.php/Kip_Koon
> 
> 
> 
> -----Original Message-----
> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Joe Grubbs
> Sent: Wednesday, March 11, 2015 9:58 AM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] Kipper SBC v1.1
> 
> 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%2
>>> 01.pdf
>> ?dl=0>
>> 
>> Schematic Sheet 2 - Power
>> 
>> <https://www.dropbox.com/s/0yfbko0a5le691y/Kipper%20SBC%20v1.1%20sch%2
>> 02.pdf
>> ?dl=0>
>> 
>> Schematic Sheet 3 - Kipper Bus
>> 
>> <https://www.dropbox.com/s/3bq6rt0wxx93hyu/Kipper%20SBC%20v1.1%20sch%2
>> 03.pdf
>> ?dl=0>
>> 
>> Schematic Sheet 4 - Terminal/Keyboard
>> 
>> <https://www.dropbox.com/s/1qn66jt8yqshkmd/Kipper%20SBC%20v1.1%20sch%2
>> 04.pdf
>> ?dl=0>
>> 
>> PCB Layout
>> 
>> <https://www.dropbox.com/s/faj0ijqcr4uq7xx/Kipper%20SBC%20v1.1%20brd.p
>> df?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
> 		 	   		  
> 
> -- 
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco
> 
> 
> -- 
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco