Hi3516DV300 development board-1. Environment setup

Preface

In the installation environment, you have a Linux system by default, no matter whether it is a VM virtual machine, Docker or WSL, there is no requirement for the Linux system.

The environment of this tutorial is as follows: Ubuntu18.04, Anaconda (Python3.8.5)

note:The first step under the setup is to change bash is very important! ! !
Don't think that the system that you have used for a long time is okay without checking. Be sure to check it! ! !

Build

Change the Linux shell to bash (Very important）

Check shellwhether the current is bash:

ls -l /bin/sh

If the display is /bin/bash -> bashthe second step jump,
if the display is /bin/bash -> dashor else proceed:

method one:

sudo dpkg-reconfigure dash

Method two: Reset bashSoft connection

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

The correct display is as follows:

Install Python environment (Python)

By Anacondainstalling Python(recommend）

1. You can install it according to my tutorial Anaconda:

   Anaconda installs different versions of Python

2. At this input conda --versioncan output a version number, indicating no problem.

3. Then create a new environment:

   conda create -n HarmonyOS python=3.8.5
   # 环境名称为：HarmonyOS，Python版本为3.8.5
   
   conda activate HarmonyOS
   # 进入该 Python环境
   # 此时前面的(base) 会变成 (HarmonyOS)就对了
   

4. View pythonversion:

   python --version
   # 显示： Python 3.8.5 则完成！
   

Install via command linePython (Not recommended）

Ubuntu18.04 runs as follows:

sudo apt-get install python3.8

Ubuntu16.04 or below runs as follows:

# 安装依赖包
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

#下载Python3.8.5安装包，用源码包安装
wget https://www.python.org/ftp/python/3.8.5/Python-3.8.5.tgz 
tar -zxvf Python-3.8.5.tgz && cd Python-3.8.5.tgz

sudo ./configure && sudo make
sudo make install

Check whether it is Python after installation:python --version

If it is not python 3.8.5, continue:

which python3.8

Display: /home/long/anaconda3/envs/HarmonyOS/bin/python3.8
Remember this path! ! !

Then continue: ( ln -s xxxxThe first path that needs to be modified by yourself)

sudo rm -rf /usr/bin/python
sudo ln -s /home/long/anaconda3/envs/HarmonyOS/bin/python3.8 /usr/bin/python

# 此时再打印版本
python --version

Install Python environment (pip3)

Command line : (recommend）

# 先安装相应的初始化包
sudo apt-get install python3-setuptools python3-pip-y

#升级pip（可选）
sudo pip3 install --upgrade pip

Source code package method : (Not recommended）

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

python get-pip.py

Install Python environment (setuptools)

pip3 install setuptools

Install GUI menuconfig tool (Kconfiglib)

sudo pip3 install kconfiglib

Installation file packaging tool

sudo apt-get install dosfstools mtools mtd-utils

Install compilation scripts, tool chains, etc.

1. Download

#新建一个文件夹专门存放这些文件包
mkdir ~/Tools && cd ~/Tools

#下载 gn编译脚本
wget https://repo.huaweicloud.com/harmonyos/compiler/gn/1523/linux/gn.1523.tar
#下载 ninja编译脚本
wget https://repo.huaweicloud.com/harmonyos/compiler/ninja/1.9.0/linux/ninja.1.9.0.tar
#下载 LLVM编译工具链
wget https://repo.huaweicloud.com/harmonyos/compiler/clang/9.0.0-34042/linux/llvm-linux-9.0.0-34042.tar
#下载 hc-gen驱动配置编译工具
wget https://repo.huaweicloud.com/harmonyos/compiler/hc-gen/0.65/linux/hc-gen-0.65-linux.tar

2. Unzip

tar -xvf gn.1523.tar -C ~/
tar -xvf ninja.1.9.0.tar -C ~/
tar -xvf llvm-linux-9.0.0-34042.tar -C ~/
tar -xvf hc-gen-0.65-linux.tar -C ~/

3. Set environment variables

# 进入当前用户下的环境变量
vim ~/.bashrc

# 把下面命令拷贝到 .bashrc 的最后面
export PATH=~/gn:~/ninja:~/llvm/bin:~/hc-gen:$PATH

4. Execution environment variables

source ~/.bashrc

Get the source code

Being able to get here indicates that your basic environment is no problem, and then you can compile! ! !

Download source code:

#为了环境不乱，还是新建一个单独文件夹
mkdir ~/Source_Code && cd ~/Source_Code

#下载官方提供源码
wget https://repo.huaweicloud.com/harmonyos/os/1.0/code-1.0.tar.gz

#解压源码
tar -zxvf code-1.0.tar.gz && cd code-1.0

Modify the application:
First, the example code is in the source directory:
applications/sample/camera/app/src

So go ahead young man! ! Victory is ahead haha

vim applications/sample/camera/app/src/helloworld.c

At this point, you can see what many people are familiar helloworldwith:

#include <stdio.h>
#include "los_sample.h"
 
int main(int argc, char **argv)
{
    
    
    printf("\n************************************************\n");
    printf("\n\t\tHello OHOS!\n");
    printf("\n************************************************\n\n");
 
    LOS_Sample(g_num);
 
    return 0;
}

You can change it at will, for example Hello HarmonyOS!, and then save and exit.

Compile

last step:

python build.py ipcamera_hi3516dv300 -b debug

There is no accident at this time, you wait for it to run to 1338 to complete, you can compile successfully, the success will be as follows:

End

Burning I will put it in the next article! ! ! Keep looking forward to it! ! !

If you have any related questions, please leave a message.

From electronic enthusiast