[Coco] "6 chip 6809 board" with 63C09E processor

[Kip Koon]

Hi Jim,
I'm glad someone else is trying their hand at Grant's 6-chip 6809 computer.
Would you like to collaborate on design efforts?  I build the original
design first.  The I started toying around with the address decoding of the
68B50 chip select lines.  Then I put them back to the original $A000, $A001
because I was not able to paste into HyperTerminal and thus into 6809
Extended Basic.  Now I see only garbage in HyperTerminal.  I checked that
A15 is going to CS0 pin 8, A14 to CS2# pin 9 and A13 to CS1 pin 10.  But no
go.  Any Ideas?  Also, Are you going to use a CLPD or use 74LSxx logic after
you get Grant's design running?
Kip

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
Behalf Of iggybeans at comcast.net
Sent: Monday, August 20, 2012 2:53 PM
To: coco at maltedmedia.com
Subject: [Coco] "6 chip 6809 board" with 63C09E processor


I decided to use one of Camillus Blockx's Hitachi processors to build a
modified version of the "6 chip 6809 board". 
Once I get that running I was thinking of adding a simple VGA controller
(like the units I see being added to MCUs). 
Any recommendations on what to use? 

Jim Igou 

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