System controller hardware and embedded software for the Petite Amateur Navy Satellite (PANSAT)

This thesis documents the design of the hardware and embedded software of a digital computer that provides autonomous control of the PANSAT spacecraft. The system was designed for use during a two year mission in a low earth orbit. The computer uses an Intel M80C186XL running at 7.3728 MHz, 512 kbytes of error-detection and correction RAM, 64 kbytes of ROM, and standard CMOS components to provide a general purpose microcomputer. The purpose of the computer is to control all subsystems of the spacecraft, perform analog-to- digital conversions, orchestrate duplicate hardware components to provide redundancy, and upload new software from a ground station. The hardware system was built on printed circuit boards which were manufactured by the Space System Academic Group and tested for proper operation. The embedded software was coded using 80186 Assembler and the C programming language, tested for proper operation, and placed into ROM as firmware

Grantor dc:publisher

Monterey, CA; Naval Postgraduate School

Year dc:date.issued

1997

Author dc:creator

• Horning, James Anthony

Advisors dc:contributor.advisor

• Panholzer, Rudolf
• Wight, Randy L.

Statement dc:rights

• This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.

Handle dc:identifier.uri

https://hdl.handle.net/10945/9051

OAI identifier oai:identifier

oai:calhoun.nps.edu:10945/9051