VirSim, a Simulated Environment for Developing Multitask Software of Satellite

On-board software is one of the most important parts of satellite. It composed of software modules which are responsible of meeting the satellite functionalities. In addition there is an OS which provides software and hardware resources for the software modules through services. This paper deals with simulating one of these OS called virtuoso. It introduces a new simulated environment allow us to run the Software on PC as a general purpose hardware. We called this VirSim. VirSim speeds up the software development, debugging and testing due to relaxing need to special hardware as well as appropriate visualized environment.