Re: 8032 to 4032 conversion (was: Re: My ColourPET Project)

From: Steve Gray <sjgray_at_rogers.com>
Date: Sun, 14 Apr 2013 13:25:49 -0400
Message-Id: <581FE27F-0D3F-4CC2-8121-36F6C9EA79EE@rogers.com>
Your jumpers seem correct. It looks to me like something is intermittant. Perhaps one of the traces near a jumper got messed up or you're not actually jumpering in the correct hole (some can be tricky)

If you want you can  remove J7 and jumper from BA10 to J7 (the hole that connects to UC3 pin 1- the rightside one when viewed from the front). Reinstall the UB8 latch. This will remap the odd ram to $8400-87FF ready for ColourPET ;-)

I will try to post some closeup pics of the jumpers for 40col so you can compare.

Steve


On Apr 14, 2013, at 9:08 AM, Christian Dirks <Toast_r@IdeaLine.info> wrote:

> I ran into another problem, in 40 column mode the charcters are crippled.
> I put a photo at http://www.idealine.info/CBM/char.jpg
> It _should_ show the normal startup screen, followed by:
> ABCDEFGHIJKLMNOPQRSTUVWXYZ
> 1234567890
> 
> I use a 8032080 mainboard and set the jumpers according to http://zimmers.net/anonftp/pub/cbm/schematics/computers/pet/univ/8032080-7.gif
> BA0..10 are set to 40 col.
> 1,3,7 and 6 are set.
> 2,4,5 and 8 are open.
> The latch from UB8 is removed.
> 
> Any idea what I missed ?
> 
> Christian
> 
>> Since I have no 4032 around, I am switching a 8032 to 4032.
>> It has the business keyboard, so I need a editor rom edit-4-40-b-50Hz.
>> DIN would be perfect, but I can also use a ascii keyboard.
>> Does anyone have a suitable .bin around ?
>> 
>> Christian
>> 
> 
> 
> -- 
> Christian Dirks
> Toast_r@Idealine.info
> 
> 
> 
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Received on 2013-04-14 18:00:08

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