有台山水蓝光机没有遥控,想改下代码,但芯片是MT8550,FLASH是hy27uf81g2a的,没有工具盒编程器,固件弄不下来,现在ttl进去了,有显示命令,但我菜,那为大哥教我怎么弄
U-Boot 2009.08 (Dec 22 2010 - 09:33:50)
I2C: ready
NXP B.V. - MT85XX SoC with ARM1176JZF-S
DRAM: 256 MB
NAND: 128 MiB
u-boot adaptive mtd mechanism applied.
[_i_find_part_tbl]Part tbl info passed from preloader
[_i_find_part_tbl] version is 1!!
[_i_get_upg_status_in_nand]upg status passed from preloader
Using default environment
SEG_MSG_UBOOT !
In: serial
Out: serial
Err: serial
r_args_to_uboot:
head sig : 0xa0b0ead1
version : 1
boot type : 0
dram ch1 : 0x08000000
dram ch2 : 0x08000000
kern addr : 0x0d9fffc0
initrd addr : 0x0eb00000
initrd size : 0x003d8a11
enable bim two way write.
boot type:[0]
PHY reset fail
懥諪#岵芏
Hit any key to stop autoboot: 0
mt8550_base #
mt8550_base #
mt8550_base # ?
? - alias for 'help'
base - print or set address offset
bdinfo - print Board Info structure
bootm - boot application image from memory
bootp - boot image via network using BOOTP/TFTP protocol
chpart - change active partition
cmp - memory compare
cp - memory copy
crc32 - checksum calculation
dis_log - log_enable
fatinfo - print information about filesystem
fatload - load binary file from a dos filesystem
fatls - list files in a directory (default /)
go - start application at address 'addr'
help - print online help
loop - infinite loop on address range
matchfile- match a file in a directory
md - memory display
mm - memory modify (auto-incrementing address)
mt85xx_boot- mt85xx_boot - boot command for mt85xx platform
mtdparts- define flash/nand partitions
mtest - simple RAM read/write test
mw - memory write (fill)
nand - NAND sub-system
nboot - boot from NAND device
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
setenv - set environment variables
tftpboot- boot image via network using TFTP protocol
ubi - ubi commands
upg - upg - Upgrade image sub-system
usb - usb - BDP USB sub-system
usbboot - usbboot - boot from USB device
version - print monitor version
mt8550_base #
