Sunday, November 17, 2019

Building an ADF-Copy Board for Reading and Writing Amiga Disks with a PC Floppy

Pics to follow. I just built this. Notes for now, cleaner post/video later.

These are cheaper on Amazon than Ebay by about $6. -=> (Using my link makes me a dollar or so...I appreciate it.)

The pics/video will make my notes clearer.

  • -You must have a floppy drive connected or the front end software won't detect the hardware. An Amiga floppy works for testing the connection.
Not immediately obvious to me:
  • the Teensy micro USB connector is comm and power for the teensy only
  • -the OTHER usb connector is power only for the floppy drive.
  • The headers for D-/D+ aren't needed at this time. +5V can be used to feed floppy power as it's common. GND can come in at the floppy power pin.

I recommend just buying some breakaway .100 header strips and using that to connect a floppy cable, floppy power and USB power. Way cheaper and flexible. You can now put it in a case or wherever vs. having to plug the baord into a drive. Board clearance on some drives now no longer an issue.

You can cut arduino wires (,100) and solder those to a USB cable to make the power connection.

Power out via .100 header pins can now use a standard 3.5" power cable. Break off 3, cut the center one flush and then solder it in the holes on the PCB.

Cheapest build:

Use nothing but header pins and the teensy. Though I'd recommend socketing the teensy.

You don't even need the capacitor if you use a 1amp (iphone charger for example) power supply to feed the +5V for the floppy.

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