Implementation of the DAST ARW II control laws using an 8086 microprocessor and an 8087 floating-point coprocessorA 5 MHZ single-board microprocessor system which incorporates an 8086 CPU and an 8087 Numeric Data Processor is used to implement the control laws for the NASA Drones for Aerodynamic and Structural Testing, Aeroelastic Research Wing II. The control laws program was executed in 7.02 msec, with initialization consuming 2.65 msec and the control law loop 4.38 msec. The software emulator execution times for these two tasks were 36.67 and 61.18, respectively, for a total of 97.68 msec. The space, weight and cost reductions achieved in the present, aircraft control application of this combination of a 16-bit microprocessor with an 80-bit floating point coprocessor may be obtainable in other real time control applications.
Document ID
19830030692
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Kelly, G. L. (Kansas Univ. Lawrence, KS, United States)
Berthold, G. (Kansas, University Lawrence, KS, United States)
Abbott, L. (NASA Flight Research Center Edwards, CA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
Computer Operations And Hardware
Meeting Information
Meeting: Mini and microcomputers in control and measurement; International Symposium