tashtari
PIC Whisperer
So, I was thinking...
There are three Macs that have HD20/DCD support in ROM but do not have a secondary disk drive connector, internal or external, to wit the IIvx, IIvi, and LC II. On these machines, it's possible to connect a TashTwenty or Floppy Emu by means of clipping on to the !ENBL2 leg of the SWIM PLCC itself... but this is, of course, clumsy and cumbersome.
What if there was an adapter board that fit over the SWIM PLCC, using an inverted PLCC socket, and broke out the appropriate pins to a 2x10 header for a secondary internal drive header?
Not only would this be useful for HD20/DCD support on the IIvx, IIvi, and LC II, but it would (I think) make it possible to connect a Floppy Emu on a number of other Macs without disconnecting the internal floppy drive. That'd be pretty cool.
I'd love to make this myself, but looking at the PLCC sockets available for sale and eyeballing how they'd fit upside-down, it looks like the ones that would fit best are the surface-mount ones. In addition, to put the socket on one side and the 2x10 header on the other seems like it would require both parts to be surface-mount. Aaaand... I am, to put it mildly, not confident in my ability to do surface-mount soldering. Hmm.
What do folks think? Anyone interested in collaborating?
There are three Macs that have HD20/DCD support in ROM but do not have a secondary disk drive connector, internal or external, to wit the IIvx, IIvi, and LC II. On these machines, it's possible to connect a TashTwenty or Floppy Emu by means of clipping on to the !ENBL2 leg of the SWIM PLCC itself... but this is, of course, clumsy and cumbersome.
What if there was an adapter board that fit over the SWIM PLCC, using an inverted PLCC socket, and broke out the appropriate pins to a 2x10 header for a secondary internal drive header?
Not only would this be useful for HD20/DCD support on the IIvx, IIvi, and LC II, but it would (I think) make it possible to connect a Floppy Emu on a number of other Macs without disconnecting the internal floppy drive. That'd be pretty cool.
I'd love to make this myself, but looking at the PLCC sockets available for sale and eyeballing how they'd fit upside-down, it looks like the ones that would fit best are the surface-mount ones. In addition, to put the socket on one side and the 2x10 header on the other seems like it would require both parts to be surface-mount. Aaaand... I am, to put it mildly, not confident in my ability to do surface-mount soldering. Hmm.
What do folks think? Anyone interested in collaborating?