Die Pinbelegung des 34-Poligen Steckers
Direction
-------
Reserved | 2 1 | GND
In Use In | 4 3 | GND
DriveSelect3 In | 6 5 | GND
Index Out | 8 7 | GND
DriveSelect0 In |10 9 | GND
DriveSelect1 In |12 11| GND
DriveSelect2 In |14 13| GND
Motor On In |16 15| GND
Direction In |18 17| GND
Step In |20 19| GND
WriteData In |22 21| GND
WriteGate In |24 23| GND
Track 0 Out |26 25| GND
Write Protect Out |28 27| GND
ReadData Out |30 29| GND
Side 1 In |32 31| GND
Ready/Open Out |34 33| GND
-------
Alle Signale sind LOW-ACTICE, d.h. LOW = TRUE
Motor an/aus:
-------------
________
Motor On = LOW
steppen:
--------
____
Step auf LOW pulsen
Stepprichtung aendern
---------------------
_________
Direction = LOW => Bewegung zur Mitte
_________
Direction = HIGH => Bewegung nach aussen
Erkennen einer Umdrehung
------------------------
_____
Index geht fuer ca. 5ms auf LOW zur Markierung des Trackanfangs.
(Quelle: TEAC FD55 FR-311/411/511 Mini Flexible Disk Drive
Specification)