RAM 6.0 BUX II Series Guia do Utilizador descarregar pdf (Página 39)

2 Overview of a BSP

2.3 Components of a BSP

The following state values are available:

VM_STATE_VALID

VM_STATE_WRITABLE

VM_STATE_CACHEABLE

VM_STATE_MEM_COHERENCY

VM_STATE_GUARDED

Additional state values may be available on some architectures. Check

vmLib.h and the appropriate architecture supplement for more information.

sysPhysMemDescNumEnt

int sysPhysMemDescNumEnt

The sysPhysMemDescNumEnt variable contains the number of entries in

sysPhysMemDesc[ ]. This is typically initialized statically during compile time.

sysBootLine

char *sysBootLine

The sysBootLine string pointer points to the boot line that is configured for use

when booting the system. The boot information is parsed using bootLineCrack( ).

It is typically set to the value

BOOT_LINE_ADRS, and points to the boot line

information in NVRAM.

sysExcMsg

char *sysExcMsg

When there is a serious or catastrophic problem during the boot process, the

system puts error messages at the location specified by sysExcMsg. This memory

can then be examined from an external agent such as the bootrom image, or with

an on-chip debugger.

The value of sysExcMsg should be initialized at compile time to

EXC_MSG_ADRS,

which is set to a default value in configAll.h.

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RAM 6.0 BUX II Series Guia do Utilizador Página 39