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Diagnostic System for ST506 Hard File INTERFACE Disclosure Number: IPCOM000040105D
Original Publication Date: 1987-Sep-01
Included in the Prior Art Database: 2005-Feb-01

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Ahmann, RD Blackledge, PD Cook, WA Swanson, LL [+details]


The system provides diagnostic capabilities to the ST506 hard file interface which is the industry standard mechanism for controlling 5 1/4" hard files. One of its major drawbacks is the fact that it has limited provisions for passing diagnostic information. Since this becomes extremely detrimental in the development and manufacture of files, this system creates this function without introducing any major costs. (Image Omitted) The file incorporates two different microprocessors for file control (see Fig. 3, which is a block diagram of the diagnostic interface). Micro A acts as the master processor and is responsible for spindle motor control as well as system interfacing. Micro B, a slave processor, takes its instructions from Micro A and is responsible for file servo control.