Setting Up a Development Environment

Environment Requirements

Hardware

• Linux server

• Windows workstation (host computer)

• Hi3518EV300 IoT camera development board

• USB cable and network cable (The Windows workstation is connected to Hi3518EV300 development board through the USB cable and network cable.)

  Figure 1 shows the hardware connections.

Figure 1 Hardware connections

Software

Table 1 Platforms required for the Hi3518EV300 development board

Build Tools for Linux

The following table describes the common tools required for Linux and how to obtain them.

Table 2 Development tools and obtaining methods

Development Tools for Windows

Table 3 Development tools for the Windows workstation

Installing the Basic Compilation Environment

Connecting to a Linux Server

Using PuTTY to log in to a Linux server from a PC running Windows

1. Open PuTTY, enter the IP address of the Linux server, and click Open.

   Figure 2 PuTTY configuration
   

2. Click Yes in the PuTTY Security Alert dialog box.

3. Enter the account and password.

   Figure 3 Login
   

4. The login is successful.

   Figure 4 Successful login
   

Changing Linux Shell to Bash

Run the following command to check whether bash is used as the shell:

ls -l /bin/sh

If /bin/sh -> bash is not displayed, do as follows to change shell to bash.

Method 1: Run the following command on the device and then click No.

sudo dpkg-reconfigure dash

Method 2: Run the rm -rf /bin/sh command to delete sh and then run the sudo ln -s /bin/bash /bin/sh command to create a new soft link.

sudo rm -rf /bin/sh
sudo ln -s /bin/bash /bin/sh

Installing a Python Environment

1. Start a Linux server.

2. Run the following command to check the Python version (Python 3.7 or later is required):

   python3 --version

   Do as follows to install Python, for example, Python 3.8.

   1. Run the following command to check the Ubuntu version:

   cat /etc/issue
   1. Install Python based on the Ubuntu version.

      • If the Ubuntu version is 18 or later, run the following command:

        sudo apt-get install python3.8

      • If the Ubuntu version is 16, download the installation package and install Python.

        1. Run the following command to install Python environment dependencies (gcc, g++, make, zlib, libffi):

        sudo apt-get install gcc && sudo apt-get install g++ && sudo apt-get install make && sudo apt-get install zlib* && sudo apt-get install libffi-dev
        1. Obtain the Python3.8.5 installation package, save it to the Linux server, and run the following command:

        tar -xvzf Python-3.8.5.tgz && cd Python-3.8.5 && sudo ./configure && sudo make && sudo make install

3. After Python is installed, run the following command to link the Python path to /usr/bin/python:

   which python3.8
   cd /usr/bin && sudo rm python && sudo ln -s /usr/local/bin/python3.8 python && python --version

4. Install and upgrade the Python package management tool (pip3) using either of the following methods:

   • Command line:

     sudo apt-get install python3-setuptools python3-pip -y
     sudo pip3 install --upgrade pip

   • Installation package:

     curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
     python get-pip.py

5. Run the following command to install setuptools:

   pip3 install setuptools

6. Install the GUI menuconfig tool (Kconfiglib). You are advised to install Kconfiglib 13.2.0 or later.

   • Command line:

     sudo pip3 install kconfiglib

   • Installation package:

     1. Download the .whl file (for example, kconfiglib-13.2.0-py2.py3-none-any.whl).

        Download path: https://pypi.org/project/kconfiglib#files

     2. Run the following command to install the .whl file:

        sudo pip3 install kconfiglib-13.2.0-py2.py3-none-any.whl

Installing a File Packing Tool

1. Start a Linux server.

2. Run the following command to install dosfstools.

   sudo apt-get install dosfstools

3. Run the following command to install mtools.

   sudo apt-get install mtools

Installing Compilation Tools

NOTICE:

• If you obtain the source code using an HPM component or HPM CLI tool, compilation tools like gn, ninja, LLVM, and hc-gen are not required.
• (Recommended) If you obtain the source code through an image site or a code repository, compilation tools like gn, ninja, LLVM, and hc-gen need to be installed. When installing gn, ninja, LLVM, and hc-gen, ensure that the environment variable paths of the compilation tools are unique.

Installing gn

1. Start a Linux server.

2. Download gn.

3. Run the following command to decompress the gn installation package to ~/gn.

   tar -xvf gn.1523.tar -C ~/

4. Set an environment variable by performing the following steps. Open the ~/.bashrc file in Vim first.

   vim ~/.bashrc

   Copy the following command to the last line of the .bashrc file, save the file, and exit.

   export PATH=~/gn:$PATH

5. Run the following command to validate the environment variable.

   source ~/.bashrc

Installing ninjah

1. Start a Linux server.

2. Download ninja.

3. Run the following command to decompress the ninja installation package to ~/ninja.

   tar -xvf ninja.1.9.0.tar -C ~/

4. Set an environment variable by performing the following steps. Open the ~/.bashrc file in Vim first.

   vim ~/.bashrc

   Copy the following command to the last line of the .bashrc file, save the file, and exit.

   export PATH=~/ninja:$PATH

5. Run the following command to validate the environment variable.

   source ~/.bashrc

Installing the LLVM Toolchain

1. Start a Linux server.

2. Download LLVM.

3. Run the following command to decompress the LLVM installation package to ~/llvm.

   tar -xvf llvm-linux-9.0.0-34042.tar -C ~/

4. Set an environment variable by performing the following steps. Open the ~/.bashrc file in Vim first.

   vim ~/.bashrc

   Copy the following command to the last line of the .bashrc file, save the file, and exit.

   export PATH=~/llvm/bin:$PATH

5. Run the following command to validate the environment variable.

   source ~/.bashrc

Installing hc-gen

1. Start a Linux server.

2. Download hc-gen.

3. Run the following command to decompress the hc-gen installation package to ~/hc-gen on the Linux server.

   tar -xvf hc-gen-0.65-linux.tar -C ~/

4. Set an environment variable by performing the following steps. Open the ~/.bashrc file in Vim first.

   vim ~/.bashrc

   Copy the following command to the last line of the .bashrc file, save the file, and exit.

   export PATH=~/hc-gen:$PATH

5. Run the following command to validate the environment variable.

   source ~/.bashrc