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color=#0000ff><BIG><BIG><BIG>BSP配置文件及生成下載</BIG></BIG></BIG></FONT></P>
<P><BIG><STRONG>VxWorks BSP主要配置文件 config.h 和 Makefile 注解</STRONG></BIG></P>
<BLOCKQUOTE>
<P>相關內容可參考 <A href="http://drew.nease.net/mypage/bsp_boot.htm">VxWorks
BSP和啟動過程</A></P>
<P><STRONG><BIG><BIG>config.h</BIG></BIG></STRONG></P>
<P>/*<BR>This file contains the configuration parameters for the CPU
evaluation board.<BR>*/<BR><BR>#ifndef INCconfigh<BR>#define
INCconfigh<BR><BR>/* BSP version/revision identification, before configAll.h
*/<BR>#define BSP_VER_1_2 1<BR>#define BSP_VER_1_1 1<BR>#define BSP_VERSION
"1.2" /* A Tornado 2.0 BSP */<BR>#define BSP_REV "/3" /* 0 for first revision
*/<BR><BR>#include "configAll.h"
<STRONG>/* 這個文件定義了VxWorks所有的缺省設置 */</STRONG><BR><BR><BR>/*<BR>* Define ONE of
the following to specify the revision of the PPC405GP chip<BR>* you are using.
Undefine all others. sysModel() will return<BR>* "Unknown processor" if the
correct selection is not made.<BR>*/<BR><BR>/*<BR>* Default boot
line<BR>*/</P>
<P>/*</P>
<P><STRONG>解釋: 這一行對配置網絡,連通Target Server及下載調試程序非常重要</STRONG></P>
<P><STRONG>DEFAULT_BOOT_LINE</STRONG>
的原意是為沒有NVRAM的target設計的,這樣用戶就不需要在每次系統啟動是手工輸入這些參數了.</P>
<P>系統啟動網絡時xxxEndLoad()會解釋這一行并按這一行的定義進行加載.</P>
<P>Emac(0,0) : 啟動設備,可是是軟盤,硬盤,PCMCIA卡等 其他的設備名稱如:</P>
<P>fd為軟盤,(0,0)表示第一個軟驅,3.5寸盤.<BR>dc則表示從DEC 21x4x
芯片啟動,即系統有NVRAM存在,這種方式現在已不采用.<BR>elpci表示啟動設備為3COM EtherLink XL
PCI網卡.<BR>fei:Intel 82559 EtherExpress網卡.<BR>ene: NE2000網卡<BR>ELT:
3COM以太網卡<BR>EEX: Intel網卡<BR>ata: ATA/IDE 硬盤 ............</P>
<P>405GP: 主機名 <BR>vXworks 從主機加載的VxWorks文件 <BR>h=172.16.1.159
主機的IP地址 </P>
<P>e=172.16.254.52 目標機的IP地址,若網絡啟動Target Server時,這個IP必須和主機上Target
Server配置的Target IP地址一致,且設置Back End選項為wdbrpc<BR>u=xxx 用戶名，pw=xxx
密碼: 若通過網絡加載調試時,主機的Ftp服務器和目標機的用戶名和密碼必須相同 <BR>tn=vxTarget 目標機名稱</P>
<P>*/</P>
<P><STRONG>#define DEFAULT_BOOT_LINE
\<BR> "Emac(0,0)405GP:vxWorks
h=172.16.1.159 e=172.16.254.52
\<BR>
u=xxx pw=xxx tn=vxTarget"</STRONG></P>
<P>/*<BR>* 內存設置.<BR>*
如果定義了LOCAL_MEM_AUTOSIZE則SDRAM的大小會在Boot時指定<BR>*/<BR><BR>#undef
LOCAL_MEM_AUTOSIZE
/* 運行時內存大小 */<BR>#define LOCAL_MEM_SIZE 0x02000000
/* 32MB 內存缺省
*/<BR>#define LOCAL_MEM_LOCAL_ADRS 0x00000000 /*
內存基地址為 0 */<BR>#define USER_RESERVED_MEM 0
/* see sysMemTop() */<BR><BR>/*<BR>* Define SDRAM_ECC_ENABLE to enable ECC if
an ECC SDRAM DIMM is detected<BR>* during SDRAM auto-configuration. If not
defined, ECC will not be enabled<BR>* if an ECC SDRAM DIMM is detected, and
the DIMM will be used as a normal DIMM.<BR>*/<BR><BR>#undef
SDRAM_ECC_ENABLE<BR><BR></P>
<P><STRONG>/* 解釋: 這里主要設置系統的內存分配定義,若分配不當,則系統不能正常加載和運行.</STRONG></P>
<P>ROM_TEXT_ADRS, ROM_SIZE, RAM_HIGH_ADRS, 和RAM_LOW_ADRS
在config.h和Makefile文件中都要定義,且必須要保持一致,這些地址的定義一定要<STRONG>參照VxWorks
加載執行過程,硬件手冊,MMU和VxWorks的大小</STRONG>進行.主要原則是保證VxWorks image
在ROM和RAM中都要有一定的運行空間且高效運行,可參見 <A
href="http://drew.nease.net/mypage/bsp_boot.htm">VxWorks BSP和啟動過程</A>.</P>
<P>*/<BR>#define ROM_BASE_ADRS 0xfff80000
/* ROM的基地址 */<BR>#define ROM_TEXT_ADRS (ROM_BASE_ADRS +
0x100) /* 程序指針和堆棧指針 */<BR>#define ROM_WARM_ADRS
(ROM_TEXT_ADRS+0x0004) /* 熱啟動入口地址 */<BR>#define
ROM_SIZE 0x0007f000
/* ROM大小 512KB */<BR>#define RAM_LOW_ADRS 0x00010000
/* RAM 低地址運行 <STRONG>vxWorks</STRONG> */<BR>#define RAM_HIGH_ADRS 0x00C00000
/* RAM 高地址存儲 <STRONG>bootrom</STRONG> */<BR>#define USER_RESERVED_MEM 0
/* 用戶保留地址 */<BR></P>
<P>/*<BR>* Cache options
<STRONG>定義緩存</STRONG><BR>*/<BR><BR>#define
INCLUDE_CACHE_SUPPORT<BR><BR>#define USER_D_CACHE_ENABLE<BR>#define
USER_I_CACHE_ENABLE<BR>#undef USER_D_CACHE_MODE<BR>#define USER_D_CACHE_MODE
(CACHE_COPYBACK)<BR><BR><BR>/*<BR>* 405 timers (PIT, FIT, WDT)
可由外部時鐘驅動或者CPU驅動<BR>*/<BR><BR>#define TIMER_CLOCK_EXTERNAL<BR><BR>/*<BR>*
Optional timestamp support<BR>*/<BR><BR>#undef
INCLUDE_TIMESTAMP<BR><BR>/*<BR>* Auxilliary Timer rates
定義輔助計時器頻率<BR>*/<BR><BR>#ifdef TIMER_CLOCK_EXTERNAL<BR>#define AUX_CLK_RATE_MIN
(EXT_TIMER_CLK_FREQ / (1 << 21) )<BR>#define AUX_CLK_RATE_MAX
(EXT_TIMER_CLK_FREQ / (1 << 9) )<BR>#define AUX_CLK_RATE_DEFAULT
(EXT_TIMER_CLK_FREQ / (1 << 17) )<BR>#else<BR><BR>/* ZZZZZZZZZZZ todo
put rates in for system clock derived timer clock
*/<BR><BR>#endif<BR><BR>/*<BR>* Watchdog Timer rates
<BR>*/<BR><BR>#define WDT_RATE_MIN 1 /* minimum watchdog timer rate
*/<BR>#define WDT_RATE_MAX 5000 /* maximum watchdog timer rate
*/<BR><BR><STRONG>/* 實時時鐘設置 */<BR></STRONG><BR>#define
INCLUDE_RTC<BR><BR><STRONG>/* 去除不需要的網絡驅動 */<BR></STRONG><BR>#undef
INCLUDE_EI<BR>#undef INCLUDE_EX<BR>#undef INCLUDE_ENP<BR>#undef
INCLUDE_LN<BR>#undef INCLUDE_SM_NET<BR>#undef
INCLUDE_SM_SEQ_ADDR<BR><BR><BR>/* #define for software floating point support
*/<BR><BR>#undef INCLUDE_SW_FP<BR><BR><STRONG>/* 定義串口 Serial port
configuration */<BR></STRONG><BR>#define INCLUDE_SERIAL<BR><BR><BR><STRONG>/*
PCI 設置,PCI configuration */<BR></STRONG><BR>#define INCLUDE_PCI<BR><BR>#ifdef
INCLUDE_PCI<BR>/*<BR>* Three programmable processor local memory address to
PCI memory address<BR>* mappings. If a region is enabled, PMMx_LOCAL_ADRS must
be between<BR>* PCI_MEMORY_START and PCI_MEMORY_END. If PMMx_PCI_HIGH_ADRS is
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