Device initialisation
#9
Interestingly, I get a similar stepping effect when using an HxC SD floppy emulator with the SuperCard Pro.  Since it shows the head position on the display, I can also see where it thinks the head is:  https://www.youtube.com/watch?v=EIJkca7ppbk

This time it seems to step in rather than out towards (or beyond) zero, but that might depend on what the direction line is seeing.  It probably moves the head further than on a real drive, which wouldn't handle pulses too close together.  What worries me a little is "WA" shown on the display, suggesting the write line is active too.

As before, it only happens when I use an external power source for the drive.  Everything is fine if I take the drive power from the SCP.
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Messages In This Thread
Device initialisation - by obo - 02-06-2016, 12:02 PM
RE: Device initialisation - by admin - 02-06-2016, 02:54 PM
RE: Device initialisation - by obo - 02-06-2016, 08:08 PM
RE: Device initialisation - by dfstudios - 02-06-2016, 08:32 PM
RE: Device initialisation - by admin - 02-06-2016, 09:09 PM
RE: Device initialisation - by obo - 02-07-2016, 04:59 AM
RE: Device initialisation - by admin - 02-07-2016, 09:46 AM
RE: Device initialisation - by obo - 02-07-2016, 04:03 PM
RE: Device initialisation - by obo - 02-26-2016, 05:45 PM
RE: Device initialisation - by admin - 02-26-2016, 08:16 PM



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