Stage 1 Loader

 

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