Huiding technology gr551x series development board supports openharmony

As OpenAtom OpenHarmony（ abbreviation “OpenHarmony”） Community list BLE Lightweight devices , Huiding Technology GR551x A series of low-power Bluetooth development boards have been successfully passed OpenHarmony Compatibility test review of compatibility working group , Officially complete the closing OpenHarmony Main branches （master Branch ）.

Li Dongshan comes from Shenzhen huiding Technology Co., Ltd , yes BLE A R & D Engineer in the product development department , from 2021 year 9 Begin to undertake BLE SoC GR551x Access OpenAtom OpenHarmony Ecological adaptation task . Through interviews , He shared with us in detail the difficulties and experience in the process of project development , The following is the arrangement of the interview ：

As a well-known technology giant in the development field , Why did you choose to join OpenHarmony ecology 、 Participate in open source co construction ？ What do you think ,OpenHarmony What is the most attractive point of the project ？

OpenHarmony It is a full scene oriented 、 Full connection 、 Distributed operating system in the era of full intelligence , It faces the interconnection of all things , It fits us very well BLE SoC Product application direction , Choose to join OpenHarmony ecology , I hope to participate in the joint construction of OpenHarmony The ecological system , To contribute our part to promoting the interconnection of all things and the prosperity and development of thousands of industries .

OpenHarmony Code follows Apache 2.0 And other business friendly open source agreements , All enterprises 、 Both institutions and individuals can be based on OpenHarmony Open source code , Combine your strengths , To do operating system distribution and terminal products in various fields .

When did you set up OpenHarmony Open source project team ？ How long has it taken to complete GR5515 Starter Kit Development board adaptation , The core code has been integrated into the trunk , Now is OpenHarmony PMC The Committee elected “ Code monthly contribution star ”, It's really amazing ！ Would it be convenient for you to introduce this product to us , Or this experience ？ Such a good effect has been achieved in such a short time , May I have your “ The secret ” What do they have ？

We are in 2021 Year of 9 Start to invest resources to adapt OpenHarmony. After more than two months of efforts , Our first Bluetooth LE Lightweight device chip GR551x series SoC Fit up OpenHarmony,2021 year 11 month 18 The day passed smoothly OpenHarmony Compatibility evaluation , And in 2022 year 1 month 7 The official closing date is OpenHarmony The trunk .

（GR5515 Starter Kit Adaptive code warehouse ）

It is not only because of the concerted efforts of our partners in the ecological team that we can complete the adaptation of the development board in a short time , Work together , Also benefit from OpenHarmony Complete development platform and tool chain , Excellent code framework , Rich document resources . At first, our warehouse was SIG Hatch on , After two graduation defense reviews, the code is merged into the backbone , I am very grateful to the teachers in the community for their professional guidance and support .

Can develop such an excellent product , Integrate the core code into the trunk , You and your team must have paid a lot . Please share with us , The whole process of developing this product , Including the early stage 、 Mid - 、 later stage , What specific work have you done , How much manpower and resources have been invested ？

Early stage of development board adaptation , We are right. OpenHarmony The lightweight system has been studied and investigated , After fully evaluating the feasibility, start trying to adapt . Everything is difficult at the beginning , Just beginning to fit V1.1.2-LTS edition , Build the development environment 、 Familiar with building systems 、 Transplant the first line of code , Solved a lot of problems , I've stepped on a lot of holes . finally , Two weeks later, the system will be in our SoC It runs stably on the .

In the middle of the project, we upgraded to V3.0.0-LTS,3.0 This release introduces many new features , We began to adapt HDF drive 、BLE Interface 、 file system 、 Low power consumption, etc , And passed the compatibility evaluation .

In the later stage of the project, we worked with the backbone master Version alignment ,master Version to introduce board And soc Advanced design concept of separation , We did a lot of refactoring and Optimization on the code framework , After the code architecture and specifications meet the requirements , Code in OpenHarmony The trunk .

Huiding technology is very optimistic about OpenHarmony, We continue to invest manpower in this project , At present, the first model has been basically completed BLE Soc GR5515 Chip adaptation , In the future, we will continue to optimize and maintain the adapted code , At the same time, it will also actively participate in the graphic display and design of light-weight system BLE IoT Co Construction in the direction of .

Throughout the development process , What technical or other problems have you and your team encountered ？ How are these problems solved one by one ？ In the process of solving these problems , What valuable experience have you summarized or lesson ？

At the beginning of development , There is almost no right to ARM Guidance document for lightweight system transplantation and adaptation of architecture , The build environment is also complex , The reference development board is 3 block , For my new contact OpenHarmony For Xiaobai , I don't know how to add our code , Don't know how to build , All kinds of difficulties almost encountered “ persuade sb. to resign from an official position ”. Fortunately OpenHarmony Comes with a model based on RSIC-V Sample development board of Architecture , After in-depth study of its compilation framework and adaptation details , We will SDK Migration to OpenHarmony And build successfully .

OpenHarmony Yes ARM and RSIC-V The architecture support has been very comprehensive ,Cortex-M Kernel related arch transplant liteos-m It's done for us , Porting a new development board only needs to focus on compiling and building 、BSP transplant 、XTS test 、 Business function development .

Join in OpenHarmony Since the beginning of Ecology , What's your biggest surprise ？ Or what specific gains ？

Since joining OpenHarmony Since the beginning of Ecology , I personally feel that it is developing so fast , From the beginning 1.0 Version iteration to today's 3.0 edition , Each version will bring many practical updates , More and more development boards , Documents are getting richer and richer , Community communication is becoming more and more active , It is becoming easier for developers to participate in co construction .

I've also been learning OpenHarmony, During the learning process, I learned a lot of advanced ideas on code architecture , For their usual development work has brought great help , I have always insisted on sharing my learning experience and open source transplantation cases through my blog .

Looking forward to the future OpenHarmony What can be improved 、 Provide more support ？

OpenHarmony After more than a year of rapid development , Compiling and constructing 、 The code architecture 、 Document support 、 Community construction has been done very well . I personally look forward to ,OpenHarmony Its supporting IDE DevEco Device Tool Can be popularized as soon as possible , Promote many development boards to adapt and support , This is conducive to bringing a more convenient experience to developers and end customers .

OpenHarmony At present, it is still in the stage of development and exploration , Many co construction units and ecological partners still don't know how to play open source projects , Or don't know how to start development . May I ask you to share a piece of , What do you think is the most important or worth sharing ？

The output of open source projects will provide developers with more ways to learn , Light the way for many developers . I encountered a lot of technical difficulties in the development process , When you can't get help from others , By studying other people's open source code, I found inspiration and ideas , Open source is actually a way of learning from each other , An efficient way to make common progress .

Open questions , You can say what you want , Would you like to tell us something else ？

Thank you very much OpenHarmony, It provides us with such an excellent operating system , I'm glad I can participate in open source co construction , Make a modest contribution to open source . From the beginning “ ignorant ” The small white , follow OpenHarmony Growing up together , Although the process is full of challenges , But I also gained a lot . I really feel OpenHarmony Rapid development of , I hope there are more enterprises 、 Developers participate in co construction OpenHarmony Prosper the ecology .