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88 lines
3.8 KiB
Markdown
88 lines
3.8 KiB
Markdown
# 加载固件
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_QGroundControl_ **desktop** versions can be used to install PX4 firmware onto [Pixhawk-series](../getting_started/flight_controller_selection.md) flight-controller boards.
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:::warning
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**Before you start installing Firmware** all USB connections to the vehicle must be _disconnected_ (both direct or through a telemetry radio).
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The vehicle must _not be_ powered by a battery.
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:::
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## 安装稳定的PX4版本
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Generally you should use the most recent _released_ version of PX4, in order to benefit from bug fixes and get the latest and greatest features.
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:::tip
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This is the version that is installed by default.
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:::
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To install PX4:
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1. Start _QGroundControl_ and connect the vehicle.
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2. Select **"Q" icon > Vehicle Setup > Firmware** (sidebar) to open _Firmware Setup_.
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3. Connect the flight controller directly to your computer via USB.
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::: info
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Connect directly to a powered USB port on your machine (do not connect through a USB hub).
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:::
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4. Select the **PX4 Pro Stable Release vX.x.x** option to install the latest stable version of PX4 _for your flight controller_ (autodetected).
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5. Click the **OK** button to start the update.
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The firmware will then proceed through a number of upgrade steps (downloading new firmware, erasing old firmware etc.).
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Each step is printed to the screen and overall progress is displayed on a progress bar.
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Once the firmware has completed loading, the device/vehicle will reboot and reconnect.
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:::tip
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If _QGroundControl_ installs the FMUv2 target (see console during installation) and you have a newer board, you may need to [update the bootloader](#bootloader) in order to access all the memory on your flight controller.
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:::
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Next you will need to specify the [vehicle airframe](../config/airframe.md) (and then sensors, radio, etc.)
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<a id="custom"></a>
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## 安装PX4 Main, Beta或自定义固件
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To install a different version of PX4:
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1. Connect the vehicle as above, and select **PX4 Pro Stable Release vX.x.x**.
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2. Check **Advanced settings** and select the version from the dropdown list:
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- **Standard Version (stable):** The default version (i.e. no need to use advanced settings to install this!)
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- **Beta Testing (beta):** A beta/candidate release.
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只有当新版本准备完毕时才可用。
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- **Developer Build (master):** The latest build of PX4/PX4-Autopilot _main_ branch.
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- **Custom Firmware file...:** A custom firmware file (e.g. [that you have built locally](../dev_setup/building_px4.md)).
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如果选择 Custom firmware file ，您需要在下一步中从文件系统中选择自定义固件。
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Firmware update then continues as before.
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<a id="bootloader"></a>
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## Bootloader 更新
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硬件通常预先安装匹配版本的引导程序。
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您可能需要更新的是安装较新的 Pixhawk 板FMUv2 固件 。
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If _QGroundControl_ installs the FMUv2 target (see console during installation), and you have a newer board, you may need to update the bootloader in order to access all the memory on your flight controller.
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You can update it by following the instructions in [Bootloader update > FMUv2 Bootloader Update](../advanced_config/bootloader_update.md#fmuv2-bootloader-update).
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## 更多信息
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- [QGroundControl User Guide > Firmware](https://docs.qgroundcontrol.com/master/en/qgc-user-guide/setup_view/firmware.html).
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- [PX4 Setup Video](https://youtu.be/91VGmdSlbo4) (Youtube)
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