Hongmeng introduction and development environment construction

The first 1 Chapter HarmonyOS Introduce

1.1 Hongmeng system and its application Linux、Android Different

HarmonyOS Is a “ Facing the future ”、 Facing the whole scene （ Mobile office 、 Sports Health 、 Social communications 、 Media entertainment, etc ） Distributed operating system . On the basis of traditional single device system capability ,HarmonyOS Based on the same system capability 、 The distributed concept of adapting to a variety of terminal forms , Can support a variety of terminal devices .

HarmonyOS The overall compliance with layered design , From bottom to top is ： Kernel layer 、 System service layer 、 Framework layer and application layer . The system functions according to “ System > Subsystem > function / modular ” Step by step , In a multi device deployment scenario , Support tailoring some non essential subsystems or functions according to actual needs / modular .HarmonyOS The technical architecture is shown in the figure .

We can see , Hongmeng system is not just a kernel , It also contains all the frameworks of the entire operating system , More like Windows and Android.

The kernel of Hongmeng system supports Linux and LiteOS.

1.2 LiteOS kernel

LiteOS It's a kernel , Compared with its Linux Come on , It's more streamlined , Faster startup time . meanwhile liteOS Kernel has liteOS-a and liteOS-m .

liteOS-a Usually run support MMU On the chip , Support kernel /APP Spatial isolation .A series

liteOS-m Running without MMU On the chip , That is to say MCU, For example, we often see STM32 chip . So Hongmeng OS Also support STM32 A series of single chip computers , However, the transplantation has not been completed yet .

1.3 Related information

Official documents of Hongmeng ：HarmonyOS Development _HarmonyOS ecology _HarmonyOS Operating system application device development - HarmonyOS Official website

Hongmeng gitee：OpenHarmony: OpenHarmony By the open atom open source foundation （OpenAtom Foundation） Incubation and operation of open source projects , The goal is to target the whole scene 、 Full connection 、 The age of full intelligence , Build a framework and platform of intelligent terminal device operating system , Promote the prosperity and development of the Internet of things industry .

Hongmeng OS The code download ： Document center

Official technology community ： Hongmeng HarmonyOS Technology community - Hongmeng's official partner -51CTO.COM

The first 2 Chapter Development environment construction

About the construction of development environment , Please refer to the instructions on Huawei's official website .

Document center .

At present, the development mode of Hongmeng system is Linux Compile the source code above the system ,Windows Write on the system 、 burn .

Therefore, we need to build two development environments .

2.1 Linux Environment building

About Linux System environment construction , I suggest using ubuntu 20.04. Of course, we also provide a good environment ubuntu 20.04 Mirror image , You can download it directly , Directly compile the code , There is no need to rebuild the environment according to the operation of the official website .

It takes at least a few hours to visually inspect the first building of an individual , There may also be errors .

Tencent cloud disk

link ： File sharing

Baidu SkyDrive （ Here are a few links , Just choose a download that works ）：

1、 link ： Baidu SkyDrive Please enter the extraction code

Extraction code ：iaap

2、 link ： Baidu SkyDrive Please enter the extraction code

Extraction code ：zgew

explain ：

1、 The development environment has been configured , Code can be compiled directly , The compilation can run normally

2、 Good configuration sftp , Files can be transferred remotely

account number ：harmony

password ：123456

Code path ：~/harmony/code/code-1.0

Relevant environment tool path （ You can leave it alone , It's already configured , Can be compiled directly ）：~/harmony/tools

Compile command ：

（1） Corresponding to the development board ： hi3516 IPC Development board

python build.py ipcamera_hi3516dv300

（2） Corresponding to the development board ： hi3518 IPC Development board

python build.py ipcamera_hi3518ev300

（3） Corresponding to the development board ： hi3861 Smart home Development board

python build.py wifiiot

Compilation result , You can see that it has been compiled successfully

2.2 Windows visit ubuntu file

Because we need to be in the back Windows Go to the direct editor ubuntu Hongmeng source code in the system , So we need to use samba service , Give Way Windows Can access ubuntu.

The operation is as follows ：

1. Set up apt-get Source

You can download it faster samba. Set as follows

（1） Click in the upper right corner of the desktop to open the menu , Click on setting Options .

（2） Drop down on the right side of the setting options to find “ About ”, Click on Software Updates.

（3） In the software and update interface, you can see “ Download from ”, We can make changes .

（4） Recommended choice mirros.aliyun.com perhaps mirrors.tuna.tsinghua.edu.cn, You can also click to select the best server , measuring

（5） Try connecting to the fastest software source （ The test time is long ）.

（6） Last , When exiting the software and update interface , You will be prompted to update the software list information , Click reload .

2. install samba

Enter the following command ：

sudo apt-get install samba

sudo apt-get install samba-common

modify samba The configuration file

sudo vim /etc/samba/smb.conf

Add the following at the end ：

[work]

comment = samba home directory

path = /home/harmony/

public = yes

browseable = yes

public = yes

writeable = yes

read only = no

valid users = harmony

create mask = 0777

directory mask = 0777

#force user = nobody

#force group = nogroup

available = yes

Save after exit , Enter the following command , Set up samba password , Suggest 123456 that will do

sudo smbpasswd -a harmony

restart samba service

sudo service smbd restart

3.windows mapping

Enter the name of the virtual machine in the folder path IP Address

Finally, it can be mapped into a network drive

2.3 Windows Environment building

Windows Environment construction of , The official website already has , I'm not going to go over it here .

Document center

2.4 burn

You can also refer to the official documents for burning ：

Document center

Link to the original text ： Hongmeng entry and development environment construction _ Lian Zhian -CSDN Blog _ Hongmeng development environment construction