Burn the firmware compiled by openwrt to the DR40X9 development board

Prerequisite: The source code has been compiled. Under Windows, download tftpd32 and create a folder for sharing

View tftp related programs

##Linux system:
1] Check if tftp server is installed

sudo dpkg –s tftpd-hpa

2] Install

sudo apt-get install tftp-hpa tftpd-hpa

3] Modify the file tftpd-hpa

sudo vi /etc/default/tftpd-hpa

###enter

# /etc/default/tftpd-hpa
TFTP_USERNAME="tftp"
TFTP_DIRECTORY="/tftpboot"
TFTP_ADDRESS="0.0.0.0:69"
TFTP_OPTIONS="-l –c -s"
RUN_DAEMON=”yes”
OPTIONS=”-l-s  /tftpboot”

###vim command

:q 不保存退出，:wq 保存退出，:q! 强制退出， :wq! 强制保存退出（必须有root权限）

4] Check whether NFS is installed

sudo dpkg –s install nfs-kernel-server
sudo apt-get install nfs-kernel-server   //安装

5] Modify configuration file permissions

sudo vi /etc/exports

####Add in the last line:

#/tftpboot/rootfs  *(rw,sync,no_root_squash,no_subtree_check)

格式说明：
共享目录：主机名称
主机名称或共享IP：允许按照指定权限访问这个目录的远程主机（如：开发板）
参数：
ro：只读权限
rw：读写权限
no_root_squash：如果是客户端root，那么他对这个目录具有root权限
root_squash：如果是客户端root，那么他的权限被限制为匿名使用者
all_squash：如果是客户端是什么身份，那么他的权限被限制为匿名使用者

6] Manually start and stop NFS service

sudo/etc/init.d/nfs-kernel-server start     ##启动
sudo/etc/init.d/nfs-kernel-server stop      ##停止
sudo/etc/init.d/nfs-kernel-server restart   ##重启
sudo /etc/init.d/nfs-kermel-server status   ##查看当前NFS服务状态

===========================================================================

burning

###The files to be transferred are placed in the Current Directory.

##If you want to burn the development board, you must first transfer the file from the host to the development board (take the development board DR40X9 as an example)
***** Enter Uboot mode:
7] Make sure that the development board and the host can be pinged :

printenv    	#查看ipaddr，serverip

##If the ping fails, the solution is as follows:

【控制面板】【系统与安全】【windows防火墙】【高级设置】【入站规则】【文件和打印机共享（回显请求 – ICMPv4-In）】-----【ICMPv6-In】【全部启用规则】

8] Transfer the bin file to be burned to the development board, and the file to be transferred must be placed in the created shared folder directory:

# tftpboot PCip -g -r filename     //从共享文件夹传输到开发板 
# tftp PCip -p -r filename         //（从开发板传输到主机）

9] Use the tftpboot command to burn (the files and parameters of each development board are different, please find the manual by yourself)

tftpboot 参数 文件名

tftpboot 0x84000000 openwrt-ipq40xx-generic-wallys_dr40x9-squashfs-nand-factory.ubi

##After burning successfully, it will display

eth0 PHY0 Down Speed : 10 Half duplex
eth0 PHY1 Down Speed : 10 Half duplex
eth0 PHY2 Down Speed : 10 Half duplex
eth0 PHY3 Down Speed : 10 Half duplex
eth0 PHY4 up Speed : 1000 Half duplex
using eth0 device
TFTP from server 192.168.1.10; our IP address is 192.168.1.11
Filename 'openwrt-ipq40xx-generic-wallys_dr40x9-squashfs-nand-factory.ubi'.
Load address: 0x84000000
Loading: #################################################################
       #################################################################
       #################################################################
       #################################################################
       #################################################################
       #########################################################
done
Bytes transferred = 7995392 (7a0000 hex)

==================================================== ================================
##### If done, it is ok, and if no error is reported in the whole process, it is correct

Burn nornand-ipq40xx-single-2168-202208030527.img
transfer file:

tftpboot nornand-ipq40xx-single-2168-202208030527.img

Start burning:

imgaddr=0x84000000 && source $imgaddr:script

reset

10] Read and write operations on the development board

nand device 0
nand erase 0x0 0x8000000
nand write 0x84000000 0x0 0x4000000
reset

11] The steps are completed, and the operation of luci can be performed.