Thread: K3 using serial port problem
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Old 06-04-2012, 01:05 PM   #19
knc1
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Posts: 17,212
Karma: 18210809
Join Date: Feb 2012
Location: Central Texas
Device: No K1, PW2, KV, KOA
Quote:
Originally Posted by BusterBrown View Post
Welcome to minicom 2.5

OPTIONS: I18n
Compiled on May 2 2011, 00:39:27.
Port /dev/ttyUSB2

Press CTRL-A Z for help on special keys



U-Boot 1.3.0-rc3-lab126 (Sep 15 2010 - 19:24:53)

CPU: Freescale i.MX35 at 532 MHz
Board: MX35 Luigi [ POR]
WDOG_WCR = 0xff31
WDOG_WMCR = 0x0
Board Id: SP1B000000000000
S/N: B006A0A0xxxxxx
DRAM: 256 MB
Using default environment

In: serial
Out: serial
Err: serial
No ethernet found.
i.MX35 CPU board version 2.0
Net: No ethernet found.
Hit any key to stop autoboot: 1
0
uboot> help
Unknown command 'elp' - try 'help'
uboot> help
? - 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
bootp - boot image via network using BootP/TFTP protocol
cmp - memory compare
coninfo - print console devices and information
cp - memory copy
crc32 - checksum calculation
dhcp - invoke DHCP client to obtain IP/boot params
echo - echo args to console
go - start application at address 'addr'
help - print online help
iminfo - print header information for application image
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
md - memory display
mii - MII utility commands
mm - memory modify (auto-incrementing)
mtest - simple RAM test
mw - memory write (fill)
nfs - boot image via network using NFS protocol
nm - memory modify (constant address)
ping - send ICMP ECHO_REQUEST to network host
printenv- print environment variables
rarpboot- boot image via network using RARP/TFTP protocol
reset - Perform RESET of the CPU
run - run commands in an environment variable
setenv - set environment variables
sleep - delay execution for some time
tftpboot- boot image via network using TFTP protocol
version - print monitor version
uboot>
The printenv/setenv commands will allow you to see (change) the kernel command line being passed.
Start off by just displaying it - don't be tempted to change anything.
Also note that u-boot can "chain" multiple environment entries.
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