website.md

# OpenHarmony Device Development Documentation
- [Device Development Overview](device-dev-guide.md)
- Getting Started
  - [Quick Start Overview](quick-start/quickstart-overview.md)
  - Getting Started in IDE Mode
    - Setting Up the Development Environment
      - [Setting Up the Windows Environment](quick-start/quickstart-ide-env-win.md)
      - [Setting Up the Ubuntu Environment](quick-start/quickstart-ide-env-ubuntu.md)
      - [Configuring the Environment for Remote Access](quick-start/quickstart-ide-env-remote.md)
    - [Creating a Project and Obtaining Source Code](quick-start/quickstart-ide-import-project.md)
    - Mini System (Based on the Hi3861 Development Board)
      - [Writing a Hello World Program](quick-start/quickstart-ide-3861-helloworld.md)
      - [Building Source Code](quick-start/quickstart-ide-3861-build.md)
      - [Burning an Image](quick-start/quickstart-ide-3861-burn.md)
      - [Running an Image](quick-start/quickstart-ide-3861-running.md)
    - Small System (Based on the Hi3516 Development Board)
      - [Writing a Hello World Program](quick-start/quickstart-ide-3516-helloworld.md)
      - [Building Source Code](quick-start/quickstart-ide-3516-build.md)
      - [Burning an Image](quick-start/quickstart-ide-3516-burn.md)
      - [Running an Image](quick-start/quickstart-ide-3516-running.md)
    - Standard System (Based on the RK3568 Development Board)
      - [Writing a Hello World Program](quick-start/quickstart-ide-3568-helloworld.md)
      - [Building Source Code](quick-start/quickstart-ide-3568-build.md)
      - [Burning an Image](quick-start/quickstart-ide-3568-burn.md)
      - [Running an Image](quick-start/quickstart-ide-3568-running.md)
  - Getting Started in CLI Mode
    - Setting Up the Development Environment
      - [Setting Up the Development Environment](quick-start/quickstart-pkg-prepare.md)
      - [Installing Libraries and Tools](quick-start/quickstart-pkg-install-package.md)
      - [Obtaining Source Code](quick-start/quickstart-pkg-sourcecode.md)
      - [Installing the Compilation Tools](quick-start/quickstart-pkg-install-tool.md)
    - Mini System (Based on the Hi3861 Development Board)
      - [Installing Tools Specially Required by the Hi3861 Development Board](quick-start/quickstart-pkg-3861-tool.md)
      - [Writing a Hello World Program](quick-start/quickstart-pkg-3861-helloworld.md)
      - [Building Source Code](quick-start/quickstart-pkg-3861-build.md)
      - [Burning an Image](quick-start/quickstart-pkg-3861-burn.md)
      - [Running an Image](quick-start/quickstart-pkg-3861-running.md)
    - Small System (Based on the Hi3516 Development Board)
      - [Writing a Hello World Program](quick-start/quickstart-pkg-3516-helloworld.md)
      - [Building Source Code](quick-start/quickstart-pkg-3516-build.md)
      - [Burning an Image](quick-start/quickstart-pkg-3516-burn.md)
      - [Running an Image](quick-start/quickstart-pkg-3516-running.md)
    - Standard System (Based on the RK3568 Development Board)
      - [Writing a Hello World Program](quick-start/quickstart-pkg-3568-helloworld.md)
      - [Building Source Code](quick-start/quickstart-pkg-3568-build.md)
      - [Burning an Image](quick-start/quickstart-pkg-3568-burn.md)
      - [Running an Image](quick-start/quickstart-pkg-3568-running.md)
    - Miscellaneous
      - [Configuring the Proxy](quick-start/quickstart-pkg-common-proxy.md)
      - [Building Source Code Using the build.sh Script](quick-start/quickstart-pkg-common-build.md)
      - [Fixing hb Installation Errors](quick-start/quickstart-pkg-common-hberr.md)
      - [Fixing Compilation and Building Errors](quick-start/quickstart-pkg-common-builderr.md)
      - [Fixing Image Burning Errors](quick-start/quickstart-pkg-common-burnerr.md)
  - Appendix
    - [Hi3516 Development Board](quick-start/quickstart-appendix-hi3516.md)
    - [Hi3861 Development Board](quick-start/quickstart-appendix-hi3861.md)
    - [RK3568 Development Board](quick-start/quickstart-appendix-rk3568.md)
    - [Build Form Factors](quick-start/quickstart-appendix-compiledform.md)
    - [Getting Started with the Standard System with Hi3516 (IDE Mode)](quick-start/quickstart-appendix-hi3516-ide.md)
    - [Getting Started with the Standard System with Hi3516 (CLI Mode)](quick-start/quickstart-appendix-hi3516-pkg.md)
  
  - [Obtaining Source Code](get-code/sourcecode-acquire.md)
- Privacy and Security
  - [Privacy Protection](security/security-privacy-protection.md)
  - [Security Guidelines](security/security-guidelines-overall.md)

- Porting

  - Mini System SoC Porting Guide

    - [Overview](porting/porting-minichip-overview.md)

    - [Porting Preparation](porting/porting-minichip-prepare.md)

    - [Kernel Porting](porting/porting-minichip-kernel.md)

    - Subsystem Porting

      - [Subsystem Porting Overview](porting/porting-minichip-subsys-overview.md)

      - [Porting the Startup Subsystem](porting/porting-minichip-subsys-startup.md)

      - [Porting the File Subsystem](porting/porting-minichip-subsys-filesystem.md)

      - [Porting the Security Subsystem](porting/porting-minichip-subsys-security.md)

      - [Porting the Communication Subsystem](porting/porting-minichip-subsys-communication.md)

      - [Porting the Driver Subsystem](porting/porting-minichip-subsys-driver.md)

      - [Configuring Other Subsystems](porting/porting-minichip-subsys-others.md)

    - [Porting Verification](porting/porting-minichip-verification.md)

    - [FAQs](porting/porting-chip-faqs.md)
- Small System SoC Porting Guide
  
  - Porting Preparation
  
    - [Before You Start](porting/porting-smallchip-prepare-needs.md)
  
    - [Compilation and Building](porting/porting-smallchip-prepare-building.md)
  
  - Kernel Porting
  
    - [LiteOS Cortex-A](porting/porting-smallchip-kernel-a.md)
  
    - [Linux Kernel](porting/porting-smallchip-kernel-linux.md)
  
  - Driver Porting
  
    - [Porting Overview](porting/porting-smallchip-driver-overview.md)
  
    - [Platform Driver Porting](porting/porting-smallchip-driver-plat.md)
  
    - [Device Driver Porting](porting/porting-smallchip-driver-oom.md)
  - Standard System SoC Porting Guide

    - [Standard System Porting Guide](porting/standard-system-porting-guide.md)

    - [A Method for Rapidly Porting the OpenHarmony Linux Kernel](porting/porting-linux-kernel.md)
-  Third-Party Library Porting Guide for Mini and Small Systems
  
  - [Overview](porting/porting-thirdparty-overview.md)
  - [Porting a Library Built Using CMake](porting/porting-thirdparty-cmake.md)
  - [Porting a Library Built Using Makefile](porting/porting-thirdparty-makefile.md)
- Mini System SoC Porting Cases
  - [Mini-System Devices with Screens — Bestechnic SoC Porting Case](porting/porting-bes2600w-on-minisystem-display-demo.md)
  - [Combo Solution – ASR Chip Porting Case](porting/porting-asr582x-combo-demo.md)
- Subsystem Development

  -  Kernel
     - [Kernel Overview](kernel/kernel-overview.md)
     - Mini-System Kernel (LiteOS-M)
       - [LiteOS-M Overview](kernel/kernel-mini-overview.md)
       - Basic Kernel
         - [Interrupt Management](kernel/kernel-mini-basic-interrupt.md)
         - [Task Management](kernel/kernel-mini-basic-task.md)
         - [Memory Management](kernel/kernel-mini-basic-memory.md)
         - Kernel Communication Mechanisms
           - [Event](kernel/kernel-mini-basic-ipc-event.md)
           - [Mutex](kernel/kernel-mini-basic-ipc-mutex.md)
           - [Queue](kernel/kernel-mini-basic-ipc-queue.md)
           - [Semaphore](kernel/kernel-mini-basic-ipc-sem.md)
         - [Time Management](kernel/kernel-mini-basic-time.md)
         - [Software Timer](kernel/kernel-mini-basic-soft.md)
         - [Doubly Linked List](kernel/kernel-mini-basic-list.md)
       - Extended Components
         - [C++ Support](kernel/kernel-mini-extend-support.md)
         - [CPUP](kernel/kernel-mini-extend-cpup.md)
         - [Dynamic Loading](kernel/kernel-mini-extend-dynamic-loading.md)
         - [File System](kernel/kernel-mini-extend-file.md)
       - Kernel Debugging
         - [Memory Debugging](kernel/kernel-mini-memory-debug.md)
         - [Exception Debugging](kernel/kernel-mini-memory-exception.md)
         - [Trace](kernel/kernel-mini-memory-trace.md)
         - [LMS](kernel/kernel-mini-memory-lms.md)
       - Appendix
         - [Kernel Coding Specification](kernel/kernel-mini-appx-code.md)
         - [Standard Libraries](kernel/kernel-mini-appx-lib.md)
     - Small-System Kernel (LiteOS-A)
       - [LiteOS-A Overview](kernel/kernel-small-overview.md)
       - Kernel Startup
         - [Startup in Kernel Mode](kernel/kernel-small-start-kernel.md)
         - [Startup in User Mode](kernel/kernel-small-start-user.md)
       - Basic Kernel
         - [Interrupt and Exception Handling](kernel/kernel-small-basic-interrupt.md)
         - Process Management
           - [Process](kernel/kernel-small-basic-process-process.md)
           - [Task](kernel/kernel-small-basic-process-thread.md)
           - [Scheduler](kernel/kernel-small-basic-process-scheduler.md)
         - Memory Management
           - [Heap Memory Management](kernel/kernel-small-basic-memory-heap.md)
           - [Physical Memory Management](kernel/kernel-small-basic-memory-physical.md)
           - [Virtual Memory Management](kernel/kernel-small-basic-memory-virtual.md)
           - [Virtual-to-Physical Mapping](kernel/kernel-small-basic-inner-reflect.md)
         - Kernel Communication Mechanisms
           - [Event](kernel/kernel-small-basic-trans-event.md)
           - [Semaphore](kernel/kernel-small-basic-trans-semaphore.md)
           - [Mutex](kernel/kernel-small-basic-trans-mutex.md)
           - [Queue](kernel/kernel-small-basic-trans-queue.md)
           - [RW Lock](kernel/kernel-small-basic-trans-rwlock.md)
           - [Futex](kernel/kernel-small-basic-trans-user-mutex.md)
           - [Signal](kernel/kernel-small-basic-trans-user-signal.md)
         - [Time Management](kernel/kernel-small-basic-time.md)
         - [Software Timer](kernel/kernel-small-basic-softtimer.md)
         - [Atomic Operation](kernel/kernel-small-basic-atomic.md)
       - Extension Components
         - [System Call](kernel/kernel-small-bundles-system.md)
         - [Dynamic Loading and Linking](kernel/kernel-small-bundles-linking.md)
         - [Virtual Dynamic Shared Object](kernel/kernel-small-bundles-share.md)
         - [LiteIPC](kernel/kernel-small-bundles-ipc.md)
         - File Systems
           - [Virtual File System](kernel/kernel-small-bundles-fs-virtual.md)
           - [Supported File Systems](kernel/kernel-small-bundles-fs-support.md)
           - [File System Adaptation](kernel/kernel-small-bundles-fs-new.md)
       - Debugging and Tools
         - Shell
           - [Introduction to the Shell](kernel/kernel-small-debug-shell-overview.md)
           - [Shell Command Development Guidelines](kernel/kernel-small-debug-shell-guide.md)
           - [Shell Command Programming Example](kernel/kernel-small-debug-shell-build.md)
           - Shell Command Reference
             - System Commands
               - [cpup](kernel/kernel-small-debug-shell-cmd-cpup.md)
               - [date](kernel/kernel-small-debug-shell-cmd-date.md)
               - [dmesg](kernel/kernel-small-debug-shell-cmd-dmesg.md)
               - [exec](kernel/kernel-small-debug-shell-cmd-exec.md)
               - [free](kernel/kernel-small-debug-shell-cmd-free.md)
               - [help](kernel/kernel-small-debug-shell-cmd-help.md)
               - [hwi](kernel/kernel-small-debug-shell-cmd-hwi.md)
               - [kill](kernel/kernel-small-debug-shell-cmd-kill.md)
               - [log](kernel/kernel-small-debug-shell-cmd-log.md)
               - [memcheck](kernel/kernel-small-debug-shell-cmd-memcheck.md)
               - [oom](kernel/kernel-small-debug-shell-cmd-oom.md)
               - [pmm](kernel/kernel-small-debug-shell-cmd-pmm.md)
               - [reset](kernel/kernel-small-debug-shell-cmd-reset.md)
               - [sem](kernel/kernel-small-debug-shell-cmd-sem.md)
               - [stack](kernel/kernel-small-debug-shell-cmd-stack.md)
               - [su](kernel/kernel-small-debug-shell-cmd-su.md)
               - [swtmr](kernel/kernel-small-debug-shell-cmd-swtmr.md)
               - [systeminfo](kernel/kernel-small-debug-shell-cmd-sysinfo.md)
               - [task](kernel/kernel-small-debug-shell-cmd-task.md)
               - [uname](kernel/kernel-small-debug-shell-cmd-uname.md)
               - [vmm](kernel/kernel-small-debug-shell-cmd-vmm.md)
               - [watch](kernel/kernel-small-debug-shell-cmd-watch.md)
               - [reboot](kernel/kernel-small-debug-shell-cmd-reboot.md)
               - [top](kernel/kernel-small-debug-shell-cmd-top.md)
             - File Commands
               - [cat](kernel/kernel-small-debug-shell-file-cat.md)
               - [cd](kernel/kernel-small-debug-shell-file-cd.md)
               - [chgrp](kernel/kernel-small-debug-shell-file-chgrp.md)
               - [chmod](kernel/kernel-small-debug-shell-file-chmod.md)
               - [chown](kernel/kernel-small-debug-shell-file-chown.md)
               - [cp](kernel/kernel-small-debug-shell-file-cp.md)
               - [format](kernel/kernel-small-debug-shell-file-format.md)
               - [ls](kernel/kernel-small-debug-shell-file-ls.md)
               - [lsfd](kernel/kernel-small-debug-shell-file-lsfd.md)
               - [mkdir](kernel/kernel-small-debug-shell-file-mkdir.md)
               - [mount](kernel/kernel-small-debug-shell-file-mount.md)
               - [partinfo](kernel/kernel-small-debug-shell-file-partinfo.md)
               - [partition](kernel/kernel-small-debug-shell-file-partition.md)
               - [pwd](kernel/kernel-small-debug-shell-file-pwd.md)
               - [rm](kernel/kernel-small-debug-shell-file-rm.md)
               - [rmdir](kernel/kernel-small-debug-shell-file-rmdir.md)
               - [statfs](kernel/kernel-small-debug-shell-file-statfs.md)
               - [sync](kernel/kernel-small-debug-shell-file-sync.md)
               - [touch](kernel/kernel-small-debug-shell-file-touch.md)
               - [writeproc](kernel/kernel-small-debug-shell-file-write.md)
               - [umount](kernel/kernel-small-debug-shell-file-umount.md)
               - [du](kernel/kernel-small-debug-shell-file-du.md)
               - [mv](kernel/kernel-small-debug-shell-file-mv.md)
             - Network Commands
               - [arp](kernel/kernel-small-debug-shell-net-arp.md)
               - [dhclient](kernel/kernel-small-debug-shell-net-dhclient.md)
               - [ifconfig](kernel/kernel-small-debug-shell-net-ifconfig.md)
               - [ipdebug](kernel/kernel-small-debug-shell-net-ipdebug.md)
               - [netstat](kernel/kernel-small-debug-shell-net-netstat.md)
               - [ntpdate](kernel/kernel-small-debug-shell-net-ntpdate.md)
               - [ping](kernel/kernel-small-debug-shell-net-ping.md)
               - [ping6](kernel/kernel-small-debug-shell-net-ping6.md)
               - [telnet](kernel/kernel-small-debug-shell-net-telnet.md)
               - [tftp](kernel/kernel-small-debug-shell-net-tftp.md)
           - [Magic Key](kernel/kernel-small-debug-shell-magickey.md)
           - [User-Mode Exception Information](kernel/kernel-small-debug-shell-error.md)
         - [Trace](kernel/kernel-small-debug-trace.md)
         - [perf](kernel/kernel-mini-memory-perf.md)
         - [LMS](kernel/kernel-small-memory-lms.md)
         - [Process Debugging](kernel/kernel-small-debug-process-cpu.md)
         - Kernel-Mode Memory Debugging
           - [Memory Information Statistics](kernel/kernel-small-debug-memory-info.md)
           - [Memory Leak Check](kernel/kernel-small-debug-memory-leak.md)
           - [Memory Corruption Check](kernel/kernel-small-debug-memory-corrupt.md)
         - [User-Mode Memory Debugging](kernel/kernel-small-debug-user.md)
         - Other Kernel Debugging Methods
           - [Dying Gasp](kernel/kernel-small-debug-trace-other-lastwords.md)
           - [Common Fault Locating Methods](kernel/kernel-small-debug-trace-other-faqs.md)
       - Appendix
         - Basic Data Structure
           - [Doubly Linked List](kernel/kernel-small-apx-dll.md)
           - [Bitwise Operation](kernel/kernel-small-apx-bitwise.md)
         - [Standard Library](kernel/kernel-small-apx-library.md)
         - [Kernel Coding Specification](kernel/kernel-mini-appx-code.md)
     - Standard-System Kernel (Linux)
       - [Linux Kernel Overview](kernel/kernel-standard-overview.md)
       - [Applying Patches on Development Boards](kernel/kernel-standard-patch.md)
       - [Compiling and Building the Linux Kernel](kernel/kernel-standard-build.md)
       - Enhanced Kernel Features
         - [Enhanced SWAP](kernel/kernel-standard-mm-eswap.md)
         - [New IP Kernel Protocol Stack](kernel/kernel-standard-newip.md)
         - Task Scheduling
           - [Related Thread Group](kernel/kernel-standard-sched-rtg.md)
           - [Lightweight CPU Isolation](kernel/kernel-standard-sched-cpuisolation.md)
  -  Drivers
     - [Driver Overview](driver/driver-overview-foundation.md)
     - HDF
       - [HDF Overview](driver/driver-hdf-overview.md)
       - [Driver Development](driver/driver-hdf-development.md)
       - [Driver Service Management](driver/driver-hdf-servicemanage.md)
       - [Driver Message Mechanism Management](driver/driver-hdf-message-management.md)
       - [Driver Configuration Management](driver/driver-hdf-manage.md)
       - [HDF Development Example](driver/driver-hdf-sample.md)
     - Platform Driver Development
       - [ADC](driver/driver-platform-adc-develop.md)
       - [DAC](driver/driver-platform-dac-develop.md)
       - [GPIO](driver/driver-platform-gpio-develop.md)
       - [HDMI](driver/driver-platform-hdmi-develop.md)
       - [I2C](driver/driver-platform-i2c-develop.md)
       - [I3C](driver/driver-platform-i3c-develop.md)
       - [MIPI CSI](driver/driver-platform-mipicsi-develop.md)
       - [MIPI DSI](driver/driver-platform-mipidsi-develop.md)
       - [MMC](driver/driver-platform-mmc-develop.md)
       - [PIN](driver/driver-platform-pin-develop.md)
       - [PWM](driver/driver-platform-pwm-develop.md)
       - [Regulator](driver/driver-platform-regulator-develop.md)
       - [RTC](driver/driver-platform-rtc-develop.md)
       - [SDIO](driver/driver-platform-sdio-develop.md)
       - [SPI](driver/driver-platform-spi-develop.md)
       - [UART](driver/driver-platform-uart-develop.md)
       - [Watchdog](driver/driver-platform-watchdog-develop.md)
     - Platform Driver Usage
       - [ADC](driver/driver-platform-adc-des.md)
       - [DAC](driver/driver-platform-dac-des.md)
       - [GPIO](driver/driver-platform-gpio-des.md)
       - [HDMI](driver/driver-platform-hdmi-des.md)
       - [I2C](driver/driver-platform-i2c-des.md)
       - [I3C](driver/driver-platform-i3c-des.md)
       - [MIPI CSI](driver/driver-platform-mipicsi-des.md)
       - [MIPI DSI](driver/driver-platform-mipidsi-des.md)
       - [PIN](driver/driver-platform-pin-des.md)
       - [PWM](driver/driver-platform-pwm-des.md)
       - [Regulator](driver/driver-platform-regulator-des.md)
       - [RTC](driver/driver-platform-rtc-des.md)
       - [SDIO](driver/driver-platform-sdio-des.md)
       - [SPI](driver/driver-platform-spi-des.md)
       - [UART](driver/driver-platform-uart-des.md)
       - [WatchDog](driver/driver-platform-watchdog-des.md)
     - Peripheral Driver Usage
       - [Audio](driver/driver-peripherals-audio-des.md)
       - [Camera](driver/driver-peripherals-camera-des.md)
       - [Codec](driver/driver-peripherals-codec-des.md)
       - [Facial Authentication](driver/driver-peripherals-face_auth-des.md)
       - [Fingerprint Authentication](driver/driver-peripherals-fingerprint_auth-des.md)
       - [LCD](driver/driver-peripherals-lcd-des.md)
       - [Light](driver/driver-peripherals-light-des.md)
       - [Motion](driver/driver-peripherals-motion-des.md)
       - [PIN Authentication](driver/driver-peripherals-pinauth-des.md)
       - [Sensor](driver/driver-peripherals-sensor-des.md)
       - [Touchscreen](driver/driver-peripherals-touch-des.md)
       - [USB](driver/driver-peripherals-usb-des.md)
       - [User Authentication](driver/driver-peripherals-user-auth-des.md)
       - [Vibrator](driver/driver-peripherals-vibrator-des.md)
       - [WLAN](driver/driver-peripherals-external-des.md)
  -  Compilation and Building
     - [Compilation and Building Guide](subsystems/subsys-build-all.md)
     - [Build System Coding Specifications and Best Practices](subsystems/subsys-build-gn-coding-style-and-best-practice.md)
     - [Building the Kconfig Visual Configuration](subsystems/subsys-build-gn-kconfig-visual-config-guide.md)
     - Related Operations
       - [Building a Subsystem](subsystems/subsys-build-subsystem.md)
       - [Building a Product](subsystems/subsys-build-product.md)
       - [Building a Subsystem](subsystems/subsys-build-subsystem.md)
       - [Building a Component](subsystems/subsys-build-component.md)
       - [Building a Module](subsystems/subsys-build-module.md)
       - [Building a Chipset Solution](subsystems/subsys-build-chip_solution.md)
       - [Configuring Features](subsystems/subsys-build-feature.md)
       - [Configuring System Capabilities](subsystems/subsys-build-syscap.md)
       - [Setting deps and external_deps](subsystems/subsys-build-reference.md)
       - [Information Collected by the Open Source Software Notice](subsystems/subsys-build-reference.md)
       - [Configuring Parameters for Accelerating Local Build](subsystems/subsys-build-reference.md)
       - [Viewing Ninja Build Information](subsystems/subsys-build-reference.md)
       - [HAP Build Guide](subsystems/subsys-build-gn-hap-compilation-guide.md)
       - [FAQs](subsystems/subsys-build-FAQ.md)
  -  [Distributed Remote Startup](subsystems/subsys-remote-start.md)
  -  Graphics
     - [Graphics Overview](subsystems/subsys-graphics-overview.md)
     - [Container Component Development](subsystems/subsys-graphics-container-guide.md)
     - [Development of Layout Container Components](subsystems/subsys-graphics-layout-guide.md)
     - [Common Component Development](subsystems/subsys-graphics-common-guide.md)
     - [Animator Development](subsystems/subsys-graphics-animation-guide.md)
  -  Multimedia
     - Camera
       - [Camera Overview](subsystems/subsys-multimedia-camera-overview.md)
       - [Photographing Development](subsystems/subsys-multimedia-camera-photo-guide.md)
       - [Video Recording Development](subsystems/subsys-multimedia-camera-record-guide.md)
       - [Previewing Development](subsystems/subsys-multimedia-camera-preview-guide.md)
     - Audio/Video
       - [Audio/Video Overview](subsystems/subsys-multimedia-video-overview.md)
       - [Audio/Video Playback Development](subsystems/subsys-multimedia-video-play-guide.md)
       - [Audio/Video Recording Development](subsystems/subsys-multimedia-video-record-guide.md)     
  -  [Utils Development](subsystems/subsys-utils-guide.md)  
  -  [AI Framework Development](subsystems/subsys-ai-aiframework-devguide.md)
  -  Data Management
     - RDB
       - [RDB Overview](subsystems/subsys-data-relational-database-overview.md)
       - [RDB Development](subsystems/subsys-data-relational-database-guide.md)
     - Lightweight Data Store
       - [Lightweight Data Store Overview](subsystems/subsys-data-storage-overview.md)
       - [Lightweight Data Store Development](subsystems/subsys-data-storage-guide.md)
  -  Sensor
     - [Sensor Overview](subsystems/subsys-sensor-overview.md)
     - [Sensor Usage Guidelines](subsystems/subsys-sensor-guide.md)
     - [Sensor Usage Example](subsystems/subsys-sensor-demo.md)
  -  USB
     - [USB Overview](subsystems/subsys-usbservice-overview.md)
     - [USB Usage Guidelines](subsystems/subsys-usbservice-guide.md)
     - [USB Usage Example](subsystems/subsys-usbservice-demo.md)
  -  Application Framework
     - [Overview](subsystems/subsys-application-framework-overview.md)
     - [Setting Up a Development Environment](subsystems/subsys-application-framework-envbuild.md)
     - [Development Guidelines](subsystems/subsys-application-framework-guide.md)
     - [Development Example](subsystems/subsys-application-framework-demo.md)
  -  [OTA Update](subsystems/subsys-ota-guide.md)
  -  Telephony
     - [Telephony Overview](subsystems/subsys-tel-overview.md)
     - [Telephony Development](subsystems/subsys-tel-guide.md)
  -  Security
     - [Overview](subsystems/subsys-security-overview.md)
     - [Development on Application Signature Verification](subsystems/subsys-security-sigverify.md)
     - [Development on Application Permission Management](subsystems/subsys-security-rightmanagement.md)
     - [Development on IPC Authentication](subsystems/subsys-security-communicationverify.md)
     - [Development on Device Security Level Management](subsystems/subsys-security-devicesecuritylevel.md)
     - [Development on HUKS](subsystems/subsys-security-huks-guide.md)
     - [Application Privilege Configuration Guide](subsystems/subsys-app-privilege-config-guide.md)
     - [Preset Application Configuration Guide](subsystems/subsys-preinstall-app-config-guide.md)
  -  Startup
     - [Startup](subsystems/subsys-boot-overview.md)
     - init Module
       - [init Configuration File](subsystems/subsys-boot-init-cfg.md)
       - [Job Management](subsystems/subsys-boot-init-jobs.md)
       - [Service Management](subsystems/subsys-boot-init-service.md)
       - [Parameter Management](subsystems/subsys-boot-init-sysparam.md)
       - [Sandbox Management](subsystems/subsys-boot-init-sandbox.md)
       - [Plug-in Management](subsystems/subsys-boot-init-plugin.md)
     - [appspawn Module](subsystems/subsys-boot-appspawn.md)
     - [bootstrap Module](subsystems/subsys-boot-bootstrap.md)
     - [FAQs](subsystems/subsys-boot-faqs.md)
     - [Reference](subsystems/subsys-boot-ref.md)
  -  DFX
     - [DFX Overview](subsystems/subsys-dfx-overview.md)
     - [HiLog Development](subsystems/subsys-dfx-hilog-rich.md)
     - [HiLog\_Lite Development](subsystems/subsys-dfx-hilog-lite.md)
     - [HiTraceChain Development](subsystems/subsys-dfx-hitracechain.md)
     - [HiTraceMeter Development](subsystems/subsys-dfx-hitracemeter.md)
     - [HiCollie Development](subsystems/subsys-dfx-hicollie.md)
     - HiSysEvent Development
       - [HiSysEvent Overview](subsystems/subsys-dfx-hisysevent-overview.md)
       - [HiSysEvent Logging Configuration](subsystems/subsys-dfx-hisysevent-logging-config.md)
       - [HiSysEvent Logging](subsystems/subsys-dfx-hisysevent-logging.md)
       - [HiSysEvent Listening](subsystems/subsys-dfx-hisysevent-listening.md)
       - [HiSysEvent Query](subsystems/subsys-dfx-hisysevent-query.md)
       - [HiSysEvent Tool Usage](subsystems/subsys-dfx-hisysevent-tool.md)
     - [HiDumper Development](subsystems/subsys-dfx-hidumper.md)
     - [HiChecker Development](subsystems/subsys-dfx-hichecker.md)
     - [FaultLogger Development](subsystems/subsys-dfx-faultlogger.md)
     - [Hiview Development](subsystems/subsys-dfx-hiview.md)
  
- Featured Topics
  - HPM Part
    - [HPM Part Overview](hpm-part/hpm-part-about.md)

    - [HPM Part Development](hpm-part/hpm-part-development.md)

    - [HPM Part Reference](hpm-part/hpm-part-reference.md)

- Device Development Examples

  - Mini- and Small-System Devices
    - WLAN-connected Products
      - [LED Peripheral Control](guide/device-wlan-led-control.md)
      - [Third-Party SDK Integration](guide/device-wlan-sdk.md)
    - Cameras with a Screen
      - Screen and Camera Control
        - [Overview](guide/device-camera-control-overview.md)
        - Development Guidelines
          - [Photographing](guide/device-camera-control-demo-photoguide.md)
          - [Video Recording](guide/device-camera-control-demo-videoguide.md)
          - [Previewing](guide/device-camera-control-demo-previewguide.md)
        - [Use Case](guide/device-camera-control-example.md)
      - Visual Application Development
        - [Overview](guide/device-camera-visual-overview.md)
        - [Preparations](guide/device-camera-visual-prepare.md)
        - [Adding Pages](guide/device-camera-visual-addpage.md)
        - [Building the Home Page](guide/device-camera-visual-firstpage.md)
        - [Building the Details Page](guide/device-camera-visual-details.md)
        - [Debugging and Packaging](guide/device-camera-visual-debug.md)
        - [Running on the Device](guide/device-camera-visual-run.md)
        - [FAQs](guide/device-camera-visual-faqs.md)
  - Standard-System Devices
    - [Development Guidelines on Clock Apps](guide/device-clock-guide.md)
    - [Development Example for Platform Drivers](guide/device-driver-demo.md)
    - [Development Example for Peripheral Drivers](guide/device-outerdriver-demo.md)


- Debugging
  - R&D Tools
    - [bytrace](subsystems/subsys-toolchain-bytrace-guide.md)
    - [hdc\_std](subsystems/subsys-toolchain-hdc-guide.md)
    - [hiperf](subsystems/subsys-toolchain-hiperf.md)
- Tools

  - [Tool Overview](get-code/gettools-overview.md)
  - [Docker Environment](get-code/gettools-acquire.md)
  - [IDE](get-code/gettools-ide.md)
- Hands-On Tutorials
  
  - [Codelabs](https://gitee.com/openharmony/codelabs/blob/master/README.md) 
- References
  - FAQs
    - [FAQs Overview](faqs/faqs-overview.md)
    - [Environment Setup](faqs/faqs-environment-setup.md)
    - [Compilation and Building](faqs/faqs-building.md)
    - [Burning](faqs/faqs-burning.md)
    - [Kernel](faqs/faqs-kernel.md)
    - [Porting](faqs/faqs-porting.md)
    - [Startup](faqs/faqs-startup.md)
    - [System Applications](faqs/faqs-system-applications.md)