TTL现在需要密码，不能用了

一代可以usb晶晨方案刷机

adc - M6 ADC test
autoping- do auto ping test
autoscr - run script from memory
base - print or set address offset
bdinfo - print Board Info structure
bmp - manipulate BMP image data
boardid_prefetch- boardid sub-system
boot - SPI-NAND-COMPATIBLE
bootm - boot application image from memory
bootp - boot image via network using BOOTP/TFTP protocol
cali - configure clock phare
calinfo - calinfo print the chip calibration info
cbusreg - cbus register read/write
chpart - change active partition
clear_rebootmode- clear rebootmode
clkmsr - measure PLL clock
cmp - memory compare
coninfo - print console devices and information
cp - memory copy
crc32 - checksum calculation
data - SPI-NAND-COMPATIBLE || SPI-NAND-EMMC-COMPATIBLE
dcache - enable or disable data cache
defenv - default environment
defenv_without- defenv without environment variables
dhcp - boot image via network using DHCP/TFTP protocol
dtbinit - init some env by reading dtb file
dtbload - load binary dtb file from a dos filesystem
echo - echo args to console
editenv - edit environment variable
efuse - efuse version/licence/mac/hdcp/usid read/write or dump raw efuse data commands or info(display chip efuse info)
env - environment handling commands
ethchk - check ethernet status
ethdbg - set ethernet debug level
ethmode - set ethernet mac mode
ethrst - reset ethernet phy
exit - exit script
ext2load- load binary file from a Ext2 filesystem
ext2ls - list files in a directory (default /)
false - do nothing, unsuccessfully
fatexist- find the file from a dos filesystem
fatinfo - print information about filesystem
fatload - load binary file from a dos filesystem
fatls - list files in a directory (default /)
fdt - flattened device tree utility commands
get_img_size- get img size and save the result as a environment variable
get_rebootmode- get reboot mode
go - start application at address 'addr'
gset - gpio commands
help - print command description/usage
icache - enable or disable instruction cache
imgread - Read the image from internal flash with actual size
imxtract- extract a part of a multi-image
itest - return true/false on integer compare
keyunify- key unify sub-system
kgdb - enter gdb remote debug mode
loadb - load binary file over serial line (kermit mode)
loadenv - load environment at address 'addr'
loads - load S-Record file over serial line
loadx - load binary file over serial line (xmodem mode)
loady - load binary file over serial line (ymodem mode)
logo - logo sub-system
loop - infinite loop on address range
macreg - ethernet mac register read/write/dump
md - memory display
mdc_clk - do mdc clock
mm - memory modify (auto-incrementing address)
mmc - MMC sub system
mmcdump - mmc data load
mmcinfo - display MMC info
msleep - delay execution for some time
msr - Meson msr sub-system
mtdparts- define flash/nand partitions
mtest - simple RAM read/write test
mw - memory write (fill)
nand - NAND sub-system
nboot - boot from NAND device
netspd_f- enforce eth speed
nm - memory modify (constant address)
phyreg - ethernet phy register read/write/dump
ping - send ICMP ECHO_REQUEST to network host
printenv- print environment variables
pwm - pwm sub-system
rarpboot- boot image via network using RARP/TFTP protocol
reset - Perform RESET of the CPU
run - run commands in an environment variable
saradc - saradc sub-system
saveenv - save environment variables to persistent storage
sdc_burn- Burning with amlogic format package in sdmmc
sdc_update- Burning a partition with image file in sdmmc card
secukey - security KEY sub-system
setenv - set environment variables
sf - SPI flash sub-system
showvar - print local hushshell variables
sleep - delay execution for some time
source - run script from memory
ssecukey- NAND KEY sub-system
suspend - suspend
test - minimal test like /bin/sh
tftpboot- boot image via network using TFTP protocol
true - do nothing, successfully
ubi - ubi commands
ubifsload- load file from an UBIFS filesystem
ubifsls - list files in a directory
ubifsmount- mount UBIFS volume
ubifsumount- unmount UBIFS volume
unifykey- unifykey read/write based on the driver keymanage
unpackimg- unpack imgpack to single
update - Enter v2 usbburning mode
usb - USB sub-system
usbbc - test usb bc
usbboot - boot from USB device
usid_prefetch- usid sub-system
uuid_prefetch- uuid sub-system
version - print monitor, compiler and linker version
video - video sub-system
m8b_m201_1G#

Try connect time out 701, 700, 129641
Booting...
Saving Environment to NAND...
NAND BOOT,nand_saveenv :saveenv 115
uboot env amlnf_env_save : ####
size:65536
arg_pages:5
extra_page:1
nand_saveenv : Successful!
error: image data is not a fdt
key_unify_init:375,unify key config table parse fail
Err key(L47):fail in key_drv_init
error: image data is not a fdt
key_unify_init:375,unify key config table parse fail
Err key(L47):fail in key_drv_init
Err imgread(L330):Fmt unsupported!genFmt 0x0 != 0x3
Wrong Image Format for bootm command
ERROR: can't get kernel image!
Saving Environment to NAND...
NAND BOOT,nand_saveenv :saveenv 115
uboot env amlnf_env_save : ####
size:65536
arg_pages:5
extra_page:1
nand_saveenv : Successful!
Enter USB burn

顶你一下 我也是同样的问题哦