Title :
Space systems general-purpose processor
Author :
Perschy, James A.
Author_Institution :
Appl. Phys. Lab., Johns Hopkins Univ., Laurel, MD, USA
fDate :
11/1/2000 12:00:00 AM
Abstract :
The requirements for this processor were established using the experience of the hardware and software designers in the APL Space Department. The use of commercial hardware and software products, combined with an error- and fault-tolerant architecture, resulted in a low-cost design without adversely affecting overall reliability. The processor´s architecture and mechanical design, and hardware and software test and validation methods are described.
Keywords :
aerospace computing; fault tolerant computing; general purpose computers; interrupts; peripheral interfaces; reduced instruction set computing; shared memory systems; space vehicle electronics; system buses; COTS products; MIL-STD-1553 bus protocol circuit; Mongoose-V microprocessor; PCI interface; TIMED spacecraft; attitude flight computer; dual processor; error-tolerant architecture; fault-tolerant architecture; hardware test; low-cost design; mechanical design; mission-critical operations; overall reliability; software test; space systems general-purpose processor; thermal design; Computer architecture; Connectors; Costs; Data handling; Error correction; Flash memory; Global Positioning System; Hardware; Process design; Space vehicles;
Journal_Title :
Aerospace and Electronic Systems Magazine, IEEE
