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

From: Hans Petter Dalsklev <>
Date: Sun, 4 Jun 2017 04:18:30 +0200
Message-ID: <>
>> Hi Jim and Mark. I became one of the testers. I accepted to receive 
>> and make
>> a video about it. I didn't know about this discussion at the time, 
>> and that
>> it was a quick mash-up, so this turned more into a pcb 1.0 review 
>> than an
>> easy of use review.
>> I've learned that the cartridge sets #EXROM or #GAME, and in some 
>> cases both
>> (16k). Then, why is there a double throw jumper for #EXROM and #GAME?
> I believe you're trying to use the single ROM cart design for a 16kB 
> cart.  I don't think that will work, or at least I never designed it 
> to do so.  The design parms for the single EPROM cart was to support 
> putting an 8kB ROM at either ROML or ROMHI had
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 made a video explaining things

Hans / Bwack

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Received on 2017-06-04 03:00:02

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