SmartARM3250help menu
help sys Displays help and syntax for a specific command
core S1L core system command group
image S1L image processing command group
nand NAND command group
mmu MMU command group
hw Hardware command group
LPC3250 Stage 1 Loader （S1L）的命令：
SmartARM3250>help menu
help sys Displays help and syntax for a specific command
core S1L core system command group
image S1L image processing command group
nand NAND command group
mmu MMU command group
hw Hardware command group
SmartARM3250>help core
core S1L core system command group
baud Changes the system terminal baud rate
bwtest Performs a bandwidth test on a range of memory
comp Performs a bytewise data comparison between 2 data regions
copy Performs a bytewise data copy between 2 data regions
dump Dumps a range of memory
fill Fills a range of memory with a value
info Displays the system information and configuration
memtst Performs 1 or more memory tests
peek Displays a byte, half-word, or word value at an address
poke Places a byte, half-word, or word value at an address
prompt Changes the system prompt and autoboot timeout
rstcfg Restores the default system configuration
SmartARM3250>help image
image S1L image processing command group
aboot Sets up the board autoboot configuration
boot Boots with board with the current autoboot configuration
exec Executes an image loaded in memory or at an address
load Loads a file into memory from a source
ls Displays files in the root directory of the block device
SmartARM3250>help nand
nand NAND command group
erase Erases a range of FLASH blocks
nandbb Displays a list of bad NAND blocks
nburn Stored the current binary image in memory to FLASH
nload Loads the binary image stored in FLASH into memory
nsave Saves the current binary image loaded in memory into FLASH
read Reads raw data from FLASH to memory
write Writes raw data from memory to FLASH
nrsv Reserve a range of blocks for WinCE
nandrs Displays a list of reserved NAND blocks
SmartARM3250>help mmu
mmu MMU command group
dcache Enables, disables, or flushes data cache
icache Enables or disables instruction cache
inval Flushes data cache and invalidates instruction cache
mmuenab Enables or disables the MMU
map Maps a range of physical address sections to virtual addresses
mmuinfo Dumps page table and MMU info
SmartARM3250>help hw
hw Hardware command group
clock Sets the system clock frequencies
maddr Sets the MAC address of the system
update Updates the kickstart or the bootloader application
固化image映像：
通过S1L将U-Boot.bin固化到NAND FLASH中：
假定目前-boot.bin已经存放在sd卡中了，插入SD卡，给系统上电，按空格进入S1L的命令行，输入如下命令进行U-Boot的固化：
load blk u-boot.bin raw 0x83fc0000
nsave
此时已经将u-boot.bin固化到NAND FLASH中了，要设置从NAND FLASH启动：
aboot flash raw 0x83fc0000
如果要设置S1L的超时时间为1秒钟：
prompt PHY3250> 1
然后复位系统即可。
擦除NAND FLASH
smartarm3250>erase 12 2036 1
