做网站 赚钱多吗,网站运营是具体的,html代码自动生成,网站建设会碰到什么问题fdf的全称叫做flash device file#xff0c;它用于描述固件在flash中的布局和位置#xff0c;他可以分为几个部分[Defines]#xff0c;[FD]#xff0c;[FV]#xff0c;[Rule]#xff0c;本文主要介绍如下关键的3个部分#xff1a;
FD Section 这个部分需要在起始的地方…fdf的全称叫做flash device file它用于描述固件在flash中的布局和位置他可以分为几个部分[Defines][FD][FV][Rule]本文主要介绍如下关键的3个部分
FD Section 这个部分需要在起始的地方标注[FD.xxx]一个fdf文件中可以分为多个FD Section。 ################################################################################## FD Section# The [FD] Section is made up of the definition statements and a# description of what goes into the Flash Device Image. Each FD section# defines one flash device image. A flash device image may be one of# the following: Removable media bootable image (like a boot floppy# image,) an Option ROM image (that would be flashed into an add-in# card,) a System Flash image (that would be burned into a systems# flash) or an Update (Capsule) image that will be used to update and# existing system flash.#################################################################################[FD.QcomModule_EFI]BaseAddress 0x80200000|gEmbeddedTokenSpaceGuid.PcdEmbeddedFdBaseAddress #The base address of the FLASH Device.Size 0x00024000|gEmbeddedTokenSpaceGuid.PcdEmbeddedFdSize #The size in bytes of the FLASH DeviceErasePolarity 1BlockSize 0x200NumBlocks 0x120 FD Region
每个FD的最后都会跟上该FD的区域布局通过Region Type可以来表示存放在该FD中的内容类型比如是FV还是DATA或者是FILE。举例如下 ################################################################################## Following are lists of FD Region layout which correspond to the locations of different# images within the flash device.## Regions must be defined in ascending order and may not overlap.## A Layout Region start with a eight digit hex offset (leading 0x required) followed by# the pipe | character, followed by the size of the region, also in hex with the leading# 0x characters. Like:# Offset|Size# PcdOffsetCName|PcdSizeCName# RegionType FV, DATA, or FILE################################################################################## 512 bytes of configuration header 8 bytes of image header0x00000000|0x00024000gEmbeddedTokenSpaceGuid.PcdFlashFvMainBase|gEmbeddedTokenSpaceGuid.PcdFlashFvMainSizeFV FVMAIN_COMPACT这里的FV表示存放在该FD中的FV是什么本例表示存放的是FVMAIN_COMPACT这个FV它会在下面进行定义。
FVFlash Volume
该区域定义该FD的布局形势其中包含很多inf文件表示的是该FD包含的各个子模块该区域需要在起始位置标注[FV]如下所示
################################################################################
#
# FV Section
#
# [FV] section is used to define what components or modules are placed within a flash
# device file. This section also defines order the components and modules are positioned
# within the image. The [FV] section consists of define statements, set statements and
# module statements.
#
################################################################################[FV.FvMain]
BlockSize 0x40
NumBlocks 0 # This FV gets compressed so make it just big enough
FvAlignment 8 # FV alignment and FV attributes setting.
ERASE_POLARITY 1
MEMORY_MAPPED TRUE
STICKY_WRITE TRUE
LOCK_CAP TRUE
LOCK_STATUS TRUE
WRITE_DISABLED_CAP TRUE
WRITE_ENABLED_CAP TRUE
WRITE_STATUS TRUE
WRITE_LOCK_CAP TRUE
WRITE_LOCK_STATUS TRUE
READ_DISABLED_CAP TRUE
READ_ENABLED_CAP TRUE
READ_STATUS TRUE
READ_LOCK_CAP TRUE
READ_LOCK_STATUS TRUE
FvNameGuid 046fae99-cf2e-49ed-a6a8-a1488b7e80d3INF QcomModulePkg/Application/LinuxLoader/LinuxLoader.inf[FV.FVMAIN_COMPACT]FvAlignment 8ERASE_POLARITY 1MEMORY_MAPPED TRUESTICKY_WRITE TRUELOCK_CAP TRUELOCK_STATUS TRUEWRITE_DISABLED_CAP TRUEWRITE_ENABLED_CAP TRUEWRITE_STATUS TRUEWRITE_LOCK_CAP TRUEWRITE_LOCK_STATUS TRUEREAD_DISABLED_CAP TRUEREAD_ENABLED_CAP TRUEREAD_STATUS TRUEREAD_LOCK_CAP TRUEREAD_LOCK_STATUS TRUEFILE FV_IMAGE 9E21FD93-9C72-4c15-8C4B-E77F1DB2D792 {SECTION GUIDED EE4E5898-3914-4259-9D6E-DC7BD79403CF PROCESSING_REQUIRED TRUE {SECTION FV_IMAGE FVMAIN}}
