Testing Embedded Microprocessors: Space Application Requirements

Microprocessors are finding increased application in space systems as components, replacements, and as more sophisticated computational subsystems. Some of these applications require the development of new LSI circuits and technologies and some require the adaptation of commercially available devices. Usage for military space requires special tests to verify that they meet Space Standard Requirements, and these special tests may require specific hardware/software configurations. This paper describes the methodology and testing requirements to standardise the parts. The tests required at the part and system level, when to test as a component or embedded system, and some of the current activities and issues in the test and utilization of microprocessors.