Tianqian 2440 Linux development environment construction

1. Platform

vmware workstation pro 15 ,ubunutu-server 18.04 changed the source to Alibaba Cloud.

2. Install the compilation environment:

sudo apt install build-essential lsb-core lib32ncurses5

lsb-core and lib32ncurses5 are related to the installation of arm-linux-gcc.

3.Configure static IP:

Prerequisite steps: Use VMware's virtual network editor to turn off the DHCP of the virtual network card and set the subnet address and gateway.

In the host's Network Sharing Center, change the properties of vmnet8 according to the information in the virtual network editor and configure the IP and gateway.

Configure manual IP in Ubuntu:

$ ifconfig #Query the network card

$ sudo vi /etc/netplan/"The file name here depends on the specific situation"

The file content is modified as shown below, and the specific IP is self-determined:

network:

ethernets:

ens33:

addresses:

- 192.168.168.168/24 #ubuntu ip The 24 here is fixed and related to the subnet mask

dhcp4: false

gateway4: 192.168.168.2 #Gateway address

nameservers:

addresses:

- 114.114.114.114 #dns server

- 8.8.8.8

- 8.8.4.4

search:

-localdomain

optional: true

version: 2

:wq save and exit

sudo netplan --debug apply

There is a big pit here. If it is $ sudo netplan apply, an error will be reported. I don’t know the reason.

4. Configure ssh password-free login

vim ~/.ssh/authorized_keys

Paste the host's public key (id_rsa.pub) content into it and restart to log in without a password.

If there is no .ssh directory, create one using mkdir.

5. Install dnw

First configure the driver development environment to prepare for compiling the USB driver later.

Check the kernel version:

uname -r

sudo apt install linux-headers-4.15.0-180-generic # Execute according to the specific version

sudo apt install linux-source-4.15.0

dnw needs to be downloaded and compiled by yourself in Linux environment

The warehouse address is as follows, and the installation method is shown in readme

https://github.com/Chemelon/dnw-linux.git

6. Install minicom (or use serial port software directly on the host)

Minicom configuration method reference:

https://blog.csdn.net/qq_38880380/article/details/77662637

7. After all the installations are completed, you can happily view, download, and debug code in vscode.

8. Add common instructions

SSH transfers files from local to server:

scp @:

scp -r @:

Exchanging two paths means downloading from the server to the local computer.

Edit the environment variables:

sudo vi ~/.bashrc

Add export PATH= at the end of the path to be added to the environment: $PATH

Then

source ~/.bashrc

Part II:

Installation and use of arm-linux-gdb and openocd

2.1 Installation of openocd

It is relatively simple, and there are many articles on Baidu. You can also install it directly using apt:

sudo apt install openocd

use:

openocd -f interface/jlink.cfg -f target/samsung_s3c2440.cfg

Link Development Board

According to the prompt information, you may need to specify the frequency of jlink. Just add adapter_khz 6000 in jlink.cfg.

If there is no error message, openocd is listening on localhost's 6666, 4444, and 3333 for TCP, Telnet, and GDB connections.

2.2 arm-linux-gdb installation

You can learn about the differences between various versions of gdb on Baidu

from:

https://www.sourceware.org/gdb/download/

Download gdb source code

After decompression, use in the gdb source directory:

./configure --target=arm-linux --disable-werror --with-expat --prefix=/usr/local/arm-gdb -v

Configure gdb version

Then make && sudo make install

If expat is missing then use:

sudo apt-get install libexpat1-dev expat

After successful installation, add in ~/.bashrc

export PATH=$PATH:/usr/local/arm-gdb/bin

Use arm-linux-gdb -v to check whether the installation is successful