Browse Prior Art Database

Diskette Drive Tester Interface

IP.com Disclosure Number: IPCOM000102721D
Original Publication Date: 1990-Jan-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 1 page(s) / 42K

Publishing Venue

IBM

Related People

Mickelson, KB: AUTHOR

Abstract

Discussed is a special interface circuit that allows easier testing of drive systems used for diskette duplicating machines. These dedicated drives use one set of electronics for each side, while conventional disk drives use one board that performs the read and the write for both sides.

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Diskette Drive Tester Interface

      Discussed is a special interface circuit that allows easier
testing of drive systems used for diskette duplicating machines.
These dedicated drives use one set of electronics for each side,
while conventional disk drives use one board that performs the read
and the write for both sides.

      Most of the drive testers expect to see the standard one board
drive system.  The function of the electronics is controlled by a
signal that designates either side 1 or side 0.  When testing the
duplicator drive systems, problems occur because these drives have
one board connected separately to each head, and the side signal has
no meaning.

      The Figure shows how to connect an analog digitally controlled
switch, and a digital switch so that the two board duplicator drive
system appears to be a conventional drive to the tester.  This allows
tests to be made in a manner consistent with how each board is used.
The time to verify the function of the drive is much less.  Without
such a system, the boards to the drive must be removed and connected
to the tester individually in a conventional fashion (each board is
usually a conventional board used in a dedicated manner).

      Disclosed anonymously.