BSP Developer's Guide

VxWorks 5.5
BSP Developer’s Guide
Table D-1
VxWorks Boot Sequence (Continued)
Functions Activity File
(d)
if (i960 CPU)
invoke sysInitAlt(bootType)
else
invoke usrInit(bootType)
3. sysInitAlt( )
(i960 only)
(a) invalidate caches, if any sysALib.s
(b)
(c)
(d)
(e)
(f)
initialize system interrupt tables with default
stubs
initialize system fault tables with default stubs
initialize all processor registers to known
default values
enable tracing
clear all pending interrupts
(g) usrInit(bootType) usrConfig.c
4. usrInit( ) (a) Verify correct data segment position. Infinite
loop if not aligned correctly
(b)
(c)
(d)
(e)
if (SPARC CPU)
initialize register window management
if (SYS_HW_INIT_0)
execute SYS_HW_INIT_0 macro
if (CACHE_SUPPORT)
cacheLibInit( )
if (MIPS CPU)
sysGpInit( ), to initialize the global pointer
usrConfig.c
sysALib.s
(f) zero bss (uninitialized data) usrConfig.c
(g)
save bootType in sysStartType
(h) intVecBaseSet( ), to set vector base table lib/*.a
(i)
excVecInit( ), to initialize all system and
default interrupt vectors
lib/*.a
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