On Jan 28, 12:16 pm, Sean Fahey <a2...@hotmail.com> wrote:
I forgot to mention... Anthony Martino sourced DB19 connectors from
somewhere. He sells them, and/or he might point you to where he got
them.
https://ultimateapple2.com/catalogua2/index.php?main_page=product_inf...
For an internal option, this could be a great piggy-back project with
a RAM card (as a separate circuit). I think there are a couple mem
expansion cards that have been cloned already (and chip-reduced). Both
could fit easily onto one board. Wouldn't you just need a strap cable
to the internal drive port? The existing internal drive could then be
plugged in-series to the port.
I was under the impression that the internal port was hard-wired for
slot 6, drive 1, and not for SmartPort at all. So, if you want to go
internal, you have to desolder the disk port itself from the
motherboard, connect your board to the motherboard, and then put a new
one in that connects in line with the internal device. Or, do
something along the lines of piggybacking on the IWM, which requires
desoldering the IWM.
In any case, if you're on the same PCB as a RAM card, you could always
piggyback on the CPU and MMU, and pretend to be a slot card. That
won't work on a Plus, and will require jumpers to set the slot number
for a non-Plus - slot 7 in a ROM 255 or 0, slot 4 in a ROM 3 or 4 -
but it would work, it would even work in a ROM 255, and it could give
aux RAM instead of Slinky RAM.
My opinion, however, is that the best bet would be a small PCB with a
female connector on one side, a male connector on the other, a microSD
slot, and the smallest package of that microcontroller you can get,
stuck in a small plastic case that screws onto the back of the //c.
That way, it stays out of the way, and it works on everything. You'll
need it to support being the first device in the chain, though.