TRS-80 Model III with SD HxC floppy emulator




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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 V1.8.2.20a or later is required to change drive B disks on the TRS-80.

If you'd like to discuss this video, please visit the HxC forums at: http://torlus.com/floppy/forum/

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