尋找雨後的天晴

照圖施工接線

施工前

施工後

參考網址：http://elinux.org/BeagleBoardFAQ

施工完成後將DB9 To RS232線接上BeagleBoard母板，母板端紅色線接有寫1那一側，另一端則接上NullModem線頭，
所以
硬體連結上順序應該是母板-->DB9-->RS232-->NullMedom-->Rs232-->USB-->Computer
軟體則是打開DNW設定好COM PORT和連線速率連結母板
當軟硬體都設定好之後插上BeagleBoard母板電源就會看到如下的開機訊息

當你在commnd上打？可以看到其他指令介紹


Texas Instruments X-Loader 1.4.2 (Feb 19 2009 - 12:01:24)
Loading u-boot.bin from nand

U-Boot 2009.01-dirty (Feb 19 2009 - 12:22:31)

I2C:   ready
OMAP3530-GP rev 2, CPU-OPP2 L3-165MHz
OMAP3 Beagle board + LPDDR/NAND
DRAM:  256 MB
NAND:  256 MiB
*** Warning - bad CRC or NAND, using default environment

MUSB: using high speed
In:    serial usbtty
Out:   serial usbtty
Err:   serial usbtty
Board revision C
Serial #35bc000300000000040323090e00e007
Hit any key to stop autoboot:  0
No MMC card found
Booting from nand ...

NAND read: device 0 offset 0x280000, size 0x400000
 4194304 bytes read: OK
Wrong Image Format for bootm command
ERROR: can't get kernel image!
OMAP3 beagleboard.org # ?

?    - alias for 'help'
autoscr - run script from memory
base    - print or set address offset
bdinfo  - print Board Info structure
boot    - boot default, i.e., run 'bootcmd'
bootd   - boot default, i.e., run 'bootcmd'
bootm   - boot application image from memory
cmp - memory compare
coninfo - print console devices and information
cp   - memory copy
crc32   - checksum calculation
echo    - echo args to console
exit    - exit script
ext2load- load binary file from a Ext2 filesystem
ext2ls  - list files in a directory (default /)
fatinfo - print information about filesystem
fatload - load binary file from a dos filesystem
fatls   - list files in a directory (default /)
fsinfo  - print information about filesystems
fsload  - load binary file from a filesystem image
go   - start application at address 'addr'
help    - print online help
ibus    - ibus - I2C bus selection

icrc32  - checksum calculation
iloop   - infinite loop on address range
imd - i2c memory display
imm - i2c memory modify (auto-incrementing)
imw - memory write (fill)
imxtract- extract a part of a multi-image
inm - memory modify (constant address)
iprobe  - probe to discover valid I2C chip addresses
itest   - return true/false on integer compare
loadb   - load binary file over serial line (kermit mode)
loads   - load S-Record file over serial line
loady   - load binary file over serial line (ymodem mode)
loop    - infinite loop on address range
ls   - list files in a directory (default /)
md   - memory display
mm   - memory modify (auto-incrementing)
mmcinit - init mmc card
mtest   - simple RAM test
mw   - memory write (fill)
nand    - NAND sub-system
nandecc - nandecc - switch OMAP3 NAND ECC calculation algorithm

nboot   - boot from NAND device
nm   - memory modify (constant address)
printenv- print environment variables
reset   - Perform RESET of the CPU
run - run commands in an environment variable
saveenv - save environment variables to persistent storage
setenv  - set environment variables
showvar - print local hushshell variables
sleep   - delay execution for some time
test    - minimal test like /bin/sh
version - print monitor version
OMAP3 beagleboard.org #

有看到以上訊息就表示

你現在已經成功邁向玩BeagleBoard的一大步囉