The On Board Computer Group


Purpose / role in satellite

The onboard computer is necessary in the satellite in order to provide services needed by the other parts of the satellite. It is the plan to have all software loaded in the onboard computer memory and use the processor I/O ports to give commands/retrieve information from all other parts. The computer will be constructed on a single board that will constitute one layer of the internal of the satellite.


The OBC will be using an AT91M40800 microprocessor from Atmel. The frequency has not yet been decided. In addition the OBC will have the following memory: Please note that the above values are in Mbit not MB.

A detailed block diagram can be downloaded from the files section of this group. Links to datasheets for the used components can be found in the links section.