2400-31 FEP Maintenance & Support Guide
3-1
Revision 1.0, March 2005
CHAPTER 3
FEP INITIALIZATION & BUILT-IN SELF TEST
3.1
FEP INITIALIZATION AND BUILT-IN SELF TEST
The CPCI-821 and CPCI-817 boards display on the IOP, ACT, STO and ST1 LEDs the status of the
boards initialization and diagnostic self test.
FEP initialization firmware illuminates various user LED patterns after completing early stages of
hardware initialization. Should the board fail to boot properly, the LED pattern will indicate the last
successfully completed stage of the board initialization sequence. The following table describes the
startup LEDs.
Table 3-1. CPCI-817 Initialization and Self Test LEDs
User LED Pattern
Initialization Stage Passed
ACT
Memory Initialized
ST0
Floating Point Unit Enabled
ST1
Floating Point Unit Initialized
IOP
Instruction Cache Initialized
ACT & ST0
Exception Vectors Initialized
ACT & ST1
BSP Clocks Initialized
ACT & IOP
MPC8240 PCI Bridge Initialized
ST0 & ST1
MPC8240 Internal Registers Initialized
ST0 & IOP
PCI Device Initialization Complete
ACT & ST0 & ST1
FE Diagnostics Starting
ACT
All FE Diagnostics Passed
All LEDs OFF
User application downloaded, LEDs cleared.
