Re: Eagle CAD design and fabrication of C64 & Plus4 cartridges

From: Jim Brain <brain_at_jbrain.com>
Date: Sat, 3 Jun 2017 21:33:11 -0500
Message-ID: <b2c866be-e031-c9d1-e1a9-2a66703dd5e8@jbrain.com>
On 6/3/2017 9:18 PM, Hans Petter Dalsklev wrote:
>
>>
> That makes sense. I think Mark should reflect this in his overview 
> document, because I was led to believe otherwise.
> I don't intend to do any more work on this, but I'd like to let you 
> know that I've got the Wizard of Wor 16kb cart working with the diode 
> hack and roml connected to A13 with the Simple64Cart. A footprint for 
> those extra diodes, resistors and tracks is useful. The cart does have 
> a lot of free area also.
>
> Another question, what was the A13 jumper for ?
>
>
I started with the dual ROM design, and put A13 in there in case someone 
wanted to use the design for a single cart game, and did not want A13 to 
be connected.

Then, I modified the design to be the single ROM version, and I think it 
just got left in, with the weak idea that perhaps someone would need to 
have A13 connected for some reason, but most often it would not be needed.

Jim

-- 

Jim Brain
brain@jbrain.com
www.jbrain.com


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Received on 2017-06-04 04:00:02

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