【HarmonyOS HiSpark AI Camera试用连载】Uboot 支持的指令分享及env参数记录

小嵌 · 发表于 2021-1-11 09:57:35

【HarmonyOS HiSpark AI Camera试用连载】Uboot 支持的指令分享及env参数记录,

在上电后立即输入任意按键可以进入AI camera的uboot，uboot支持的指令可以通过下help查看全部指令如下，每个指令也可以下

hisilicon # help
? - alias for \“help\“
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\“
bootelf - Boot from an ELF image in memory
bootm - boot application image from memory
bootp - boot image via network using BOOTP/TFTP protocol
bootvx - Boot vxWorks from an ELF image
cmp - memory compare
coninfo - print console devices and information
cp - memory copy
crc32 - checksum calculation
dcache - enable or disable data cache
ddr - ddr training function
decjpg - jpgd - decode jpeg picture.
decjpg [format]
dhcp - boot image via network using DHCP/TFTP protocol
dm - Driver model low level access
echo - echo args to console
editenv - edit environment variable
env - environment handling commands
exit - exit script
false - do nothing, unsuccessfully
fatinfo - print information about filesystem
fatload - load binary file from a dos filesystem
fatls - list files in a directory （default /）
fatsize - determine a file\“s size
getinfo - print hardware information
go - start application at address \“addr\“
go_cpu1 - PeRForm power on and unreset CPU1_A7
gzwrite - unzip and write memory to block device
help - print command description/usage
icache - enable or disable instruction cache
iminfo - print header information for application image
imxtract - extract a part of a multi-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
loadx - load binary file over serial line （xmodem mode）
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 address）
mmc - MMC sub system
mmcinfo - display MMC info
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
reset - Perform RESET of the CPU
run - run commands in an environment variable
saveenv - save environment variables to persistent storage
setenv - set environment variables
setexpr - set environment variable as the result of eval expression
setvobg - setvobg - set vo backgroud color.
- setvobg [dev color]
showvar - print local hushshell variables
sleep - delay execution for some time
source - run script from memory
startgx - startgx - open graphics layer.
- startgx [layer addr stride x y w h]
startvl - startvl - open video layer.
- startvl [layer addr stride x y w h]
startvo - startvo - open vo device with a certain output interface.
- startvo [dev intftype sync]
stopgx - stopgx - close graphics layer.
- stopgx [layer]
stopvl - stopvl - close video layer.
- stopvl [layer]
stopvo - stopvo - close interface of vo device.
- stopvo [dev]
test - minimal test like /bin/sh
tftpboot - boot image via network using TFTP protocol
true - do nothing, successfully
unzip - unzip a memory region
usb - USB sub-system
usbboot - boot from USB device
version - print monitor, compiler and linker version
hisilicon # help
? - alias for \“help\“
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\“
bootelf - Boot from an ELF image in memory
bootm - boot application image from memory
bootp - boot image via network using BOOTP/TFTP protocol
bootvx - Boot vxWorks from an ELF image
cmp - memory compare
coninfo - print console devices and information
cp - memory copy
crc32 - checksum calculation
dcache - enable or disable data cache
ddr - ddr training function
decjpg - jpgd - decode jpeg picture.
decjpg [format]
dhcp - boot image via network using DHCP/TFTP protocol
dm - Driver model low level access
echo - echo args to console
editenv - edit environment variable
env - environment handling commands
exit - exit script
false - do nothing, unsuccessfully
fatinfo - print information about filesystem
fatload - load binary file from a dos filesystem
fatls - list files in a directory （default /）
fatsize - determine a file\“s size
getinfo - print hardware information
go - start application at address \“addr\“
go_cpu1 - Perform power on and unreset CPU1_A7
gzwrite - unzip and write memory to block device
help - print command description/usage
icache - enable or disable instruction cache
iminfo - print header information for application image
imxtract - extract a part of a multi-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
loadx - load binary file over serial line （xmodem mode）
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 address）
mmc - MMC sub system
mmcinfo - display MMC info
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
reset - Perform RESET of the CPU
run - run commands in an environment variable
saveenv - save environment variables to persistent storage
setenv - set environment variables
setexpr - set environment variable as the result of eval expression
setvobg - setvobg - set vo backgroud color.
- setvobg [dev color]
showvar - print local hushshell variables
sleep - delay execution for some time
source - run script from memory
startgx - startgx - open graphics layer.
- startgx [layer addr stride x y w h]
startvl - startvl - open video layer.
- startvl [layer addr stride x y w h]
startvo - startvo - open vo device with a certain output interface.
- startvo [dev intftype sync]
stopgx - stopgx - close graphics layer.
- stopgx [layer]
stopvl - stopvl - close video layer.
- stopvl [layer]
stopvo - stopvo - close interface of vo device.
- stopvo [dev]
test - minimal test like /bin/sh
tftpboot - boot image via network using TFTP protocol
true - do nothing, successfully
unzip - unzip a memory region
usb - USB sub-system
usbboot - boot from USB device
version - print monitor, compiler and linker version

复制代码 如果想要查看具体的使用参数可以下

help XXX

此处以usb指令为例，输出如下

hisilicon # help usb
usb - USB sub-system
Usage:
usb start - start （scan） USB controller
usb reset - reset （rescan） USB controller
usb stop [f] - stop USB [f]=force stop
usb tree - show USB device tree
usb info [dev] - show available USB devices
usb test [dev] [port] [mode] - set USB 2.0 test mode
（specify port 0 to indicate the device\“s upstream port）
Available modes: J, K, S[E0_NAK], P[acket], F[orce_Enable]
usb storage - show details of USB storage devices
usb dev [dev] - show or set current USB storage device
usb part [dev] - print partition table of one or all USB storage devices
usb read addr blk# cnt - read `cnt\“ blocks starting at block `blk#\“
to memory address `addr\“
usb write addr blk# cnt - write `cnt\“ blocks starting at block `blk#\“
from memory address `addr\“
hisilicon #

复制代码 最后记录下当前的uboot env

通过env print查看如下

hisilicon # env print
arch=arm
baudrate=115200
board=hi3516dv300
board_name=hi3516dv300
bootargs=console=ttyAMA0,115200n8 root=emmc fstype=vfat rootaddr=10M rootsize=15M rw
bootcmd=mmc read 0x0 0x80000000 0x800 0x4800; go 0x80000000
bootdelay=2
cpu=armv7
ethact=eth0
soc=hi3516dv300
stderr=serial
stdin=serial
stdout=serial
vendor=hisilicon
verify=n
Environment size: 329/262140 bytes
hisilicon #