BajaPPC-750 User's Manual - Emerson Network Power

10-8 BajaPPC-750: Monitor
Table 10-1. Power-up Diagnostic PASS/FAIL Flags
Device Value Read on Failure Monitor Test Command
Console Serial Port 0xa5000001 serialtest
Counter/Timer 0xa5000002 itc_test
Real Time Clock 0xa5000004 –
FPU 0xa5000008 –
Cache 0xa5000010 cachetest
NVRAM 0xa5000020 nvramtest
Flash 0xa5000040 flashtest
Ethernet Port 0xa5000080 ethertest
Download Serial Port 0xa5000100 serialtest
DRAM Parity 0xa5000200 –
DRAM Data 0xa5000400 –
22. Initialize the free memory pool.
23. Execute the configboard function if the “s” key was not pressed.
If DoPCIConfig is set in NVRAM, configboard maps the base addresses of PCI
devices. It then configures the MMU and caches. If diagnostics are enabled in
NVRAM, configboard performs an address mirror test on system memory
above address 0x40000. This test also executes (even when diagnostics are
not enabled) if the board contains SDRAM parity and it is enabled with the
MemParity NVRAM parameter.
24. If PowerUpDiags or ResetDiags is set in NVRAM, execute and display the
results of the following power-up diagnostics on the console: cache, counter/
timer, Ethernet controller, and serial port tests. Display errors on the console.
The NVRAM flag (Table 10-1) reports any failures.
25. Branch execution to StartMonitor, which checks the boot device.
If a boot device (BootDev) is specified, begin the countdown to autoboot.
After the countdown, boot from the selected device. If boot device is “none”,
the user interrupts the countdown by pressing “H”, or any powerup tests fail
and HaltOnFailure NVRAM boot parameter is set, skip the autoboot and start
the line editor.
May 2002