Demonstration Agenda

• Boot Status Signaling Over Discrete Lines
• EPU Boot Demo

The end-of-the-month October 2004 FSW Demonstration (actually held on November 3) covers two major areas of functionality.

Boot Status Signaling Over Discrete Lines

This demonstration shows that the boot code can use the discrete lines to report detection of errors in the boot region of SDRAM and report any failures to initialize communications.

EPU Boot Process

This demonstration covers the ability of EPU FSW to: (a) provide a controllable boot process (through commanded reboots and commanded entry into secondary boot), (b) store boot errors and other diagnostic data for use in troubleshooting and make this data available for retrieval on command, (c) to issue boot housekeeping telemetry, and (d) to provide a memory scrubbing capability.

For today, three CPU crates and a GASU are used to represent the final flight hardware. One CPU acts as the Spacecraft, the second acts as the SIU, and the third acts as the EPU.