[Coco] XPander-Coco lives!

[Zippster]

Yes, the user should unplug the power adapter plug to swap carts to be safe.

In retrospect, I could have put a bit more into the power circuit, something with a
switch (regulator with a power-on line, or mechanical), but I started out wanting to
do something very simple and not spend too much time on it.  
Alas, projects have a way of growing.  :)

I hope I’m done with changes at this one here…

<https://drive.google.com/open?id=0B1sgl615FlGnVE5rck0yV3IxX2s <https://drive.google.com/open?id=0B1sgl615FlGnVE5rck0yV3IxX2s>>

I added the 12v lines to the cart port so that when used on a CoCo1, carts requiring
12v power can be used.  And another switch.

One switch will control which slot, first or second, is the default boot slot, and the other
determines whether the second slot is identified as 2, 3, or 4.

- Ed


> On Apr 27, 2016, at 12:46 PM, RETRO Innovations <go4retro at go4retro.com> wrote:
> 
> On 4/25/2016 10:47 PM, Zippster wrote:
>> I wasn’t too sure how how far I was going to take the design at first,
>> which is one of the reasons I took pretty much everything into the CPLD,
>> which I usually do if I have the extra pins anyway, just in case the signals
>> prove useful.
> Maybe I am missing it, but I was looking for how power is handled. Specifically, do you switch the power rail(s), or is the user supposed to unplug power from the unit to switch carts?
> 
> Jim
> 
> 
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