Servo loop control apparatus having master processor to control the apparatus and second processor dedicated to specific preprogrammed servo loop control tasks

Abstract

A servo loop control apparatus having a master microprocessor and at least one autonomous streamlined signal processor is disclosed. The architecture provides a general purpose controller for use in systems where intensive servo signal processing is required and is well suited to applications where multiple servo control loops operate simultaneously. The operation of the streamlined signal processors is autonomous from the master processor so that critical functions can be dedicated to the streamlined signal processors. This eliminates complex interrupt management and tedious real time scheduling constraints, simplifies system design and improves system performance. The architecture provides an integrated mechanism for implementing multiple, concurrent, complex signal processing and embedded control functions, such as complete servo-mechanism management for high performance disk storage systems.

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