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Published on Jul 7, 2013
A demo of the HxC (http://hxc2001.com) SD floppy emulator rev C (cased) connected to a TRS-80 Model III.
I've connected it to the external floppy port, although it can also be connected to the internal floppy port which would allow booting from the emulator.
The TRS-80 drives are normally numbered as follows: :0 = first internal drive :1 = second internal drive :2 = first external drive :3 = second external drive
A normal straight-through (untwisted) ribbon cable was used between the TRS-80 and HxC. Make sure you plug the cable the right way into the TRS-80 and HxC -- experimentation may be required.
Use the standard Shugart jumper settings on the HxC, i.e. a jumper on ID0 for "Drive A" and a jumper on ID1 for "Drive B". Do *not* use ID2 or ID3 regardless of whether you're connecting it to the internal or external floppy port.
Note: HxC firmware V188.8.131.52a or later is required to change drive B disks on the TRS-80.