The end of May 2004 FSW Demonstration (actually held on June 2) is mainly focused on the interface between the Spacecraft and the Spacecraft Interface Unit (SIU). The Spacecraft is represented in these demonstrations by an mv2304 CPU crate. The SIU is represented by a RAD750 flight crate, incorporating the boot code demonstrated last month.

Demonstration Agenda

• generate ARR test command

• generate science data packet test command

• receive / process SI ancillary

• receive / process SI attitude

• receive / process SI time tone

• set discretes on test command

Goals of the Demonstrations

The demonstrations show the following:

• A FSW infrastructure exists that allows an SIU to receive and perform simple processing on ancillary, attitude, and time tone data messages. This infrastructure is built from the CCSDS, CTDB, and LSM packages.

• FSW that provides inter-task communication and can successfully route Spacecraft messages to software tasks is operational. This infrastructure is provided by the ITC package.