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Firmware Compilation and Burning

tip
  • E3 Pro defaults to using a TF card for firmware burning.
  • Please prepare a TF card with a capacity not exceeding 32G.
  • Counterfeit memory cards may cause burning failures, so it is recommended to use the recommended memory cards below for firmware updates.
  • The transfer speed of the TF card should be at least class10 or higher, it is recommended to use brands like SanDisk.

Preparation​

  • A host machine with the installed klipper service is required Connect via SSH over the network
  • Make sure the device is connected to the host machine
  • Note: Please use a regular host machine, such as a Raspberry Pi FLY board, etc. If it's a modified host machine (e.g., WiFi stick, Redmi, etc.), due to too many issues, we cannot provide technical support for these machines
warning
  • To switch from the ROOT user to a regular user, you can enter the command below
  • Do not use the ROOT user
  • For the fly user, you can directly enter: su fly. For non-fly users, please replace <your host machine username> with your host machine's username!
su <your host machine username>

Compiling Klipper Firmware​

tip
  • 请确保上位机可以正常联网
  • 固件编译前需要使用SSH通过网络登录上位机
  • 请不要使用串口工具登录上位机

Klipper固件编译和配置页面操作说明​

tip

请确保键盘输入法为半角模式，即英文模式

  1. 键盘上键↑，下键↓，用于上下移动光标来选中菜单项
  2. 确认键Enter 或 空格键Space，用于勾选菜单或进入子菜单
  3. 退出键ESC，用于返回上一级菜单
  4. Q键，用于退出Klipper固件配置页面
  5. Y键，在退出Klipper固件配置页面时，如果有提示，则点击Y键保存配置文件
warning

如果配置页面选项比较少，请先勾选[ ] Enable extra low-level configuration options，用于显示部分隐藏选项

Below is the introduction on how to compile the firmware:

  • After connecting to SSH, enter the following command and press Enter:

    cd ~/klipper && rm -rf ~/klipper/.config && rm -rf ~/klipper/out && make menuconfig

  • Where rm -rf ~/klipper/.config && rm -rf ~/klipper/out is to delete previous compilation data and firmware, make menuconfig is for compiling the firmware, after execution, the following interface should appear

  • Select Enable extra low-level configuration options and press Enter

  • Enter the menu Micro-controller Architecture then select STMicroelectronics STM32 and press Enter

  • Enter the menu Processor model, select STM32F407 and press Enter

  • Select Bootloader offset, select: 32KiB bootloader

  • Communication interface, select: USB (on PA11/PA12)

  • Press the Q key, a Save configuration prompt will appear, then press the Y key

  • You should now have saved the configuration and exited to the command line interface.

  • Enter make -j4 to start compiling, it takes some time.

  • If the following output is seen, compilation is successful.

    Linking out/klipper.elf
    Creating hex file out/klipper.bin

  • The image below shows a successful compilation example.

Burning Firmware​

Note
  • F404ZG has pre-flashed BL firmware for TF card burning.

Preparation​

  • Before starting to burn the firmware, please first connect via SSH using the network connection
  • Counterfeit memory cards may cause the burning process to fail. Please try to use the recommended memory card below for firmware updates
  • Prepare a TF card with a capacity of no more than 32G, and it is recommended that the transmission speed of the TF card must be class10 or higher. It is recommended to use brands such as SanDisk for the TF card

Download Firmware​

  1. Use the previously prepared TF card
  2. Format using SDFormatter
  3. Using MobaXterm_Personal, find klipper in the left file directory, then find out and open it
  4. And download klipper.bin to the TF card, and rename it to firmware.bin
  5. Power off the motherboard, insert the TF card into the motherboard
  6. On the motherboard, wait for 10 seconds
  7. Remove the TF card, insert it into the computer. If the firmware.bin in the SD card disappears and FLY.CUR appears, it indicates that the burning was successful