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External floppy drives on the Spectrum +3

No change in size, 01:27, 23 May 2015
Upper-case S in Spectrum
To connect a normal PC floppy drive as "drive B:" to the +3 you need a 34 way ribbon cable with an IDC card edge connector at one end, and an IDC socket connector at the other.
Modern floppy drives don't provide the drive ready signal, so the {{overline|READY}} line needs shorting to ground to signal to the spectrum Spectrum that the drive is ready (adding a switch here so you can manually toggle the signal on and off is a good idea otherwise the spectrum Spectrum won't start up unless there's a disk in the drive).
Any modern 3½″ floppy drive will work as drive B: with the above proviso, you must create a ready signal for the spectrum Spectrum otherwise it won't work.
All modern drives are hard wired to appear as drive B: (hence the "twist" cable in a PC to make it appear as drive A:) so the cable is just a straight through wiring of all the signals.
To write individual files to a +3 formatted diskette (or dsk file) you can use [ cpcxfs]
[[Category:Floppy disk interfaces]]

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