Spacewire is an interface standard for high rate peer-to-peer intercommunication between several nodes and routers for example between pay loads and a spacecraft on-board computer. The functionalities of Spacewire continue to increase, mainly due to the increase of on-board software complexity. New facilities have to be provided to support the development and testing of Spacewire and on-board software applications. This paper provides an overview of a generic "request-action list" concept for real-time interface simulation physically implemented as a Spacewire Interface Simulator (SWIS). The SWIS concept provides a means of generic peer-to-peer interface simulations of the packet, protocol and application layer with free user-defined functionality for several simultaneous Spacewire links. A payload simulation can be established by "drag and drop" in a much shorter time than usually needed for project specific software development. Using the SWIS test and system engineers as well as managers can prepare simulations without any need for real-time software development. The effort (i.e. cost and time) for development of the test facility is reduced and the quality may increase significantly.
Spacewire interface simulation
01.01.2006
310654 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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