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USB Bridge CAN Firmware Flashing

Start Compilation​

  • You need an upper computer with the klipper service installed Connect via SSH over the network
  • And make sure the device is connected to the upper computer
  • Note: Please use a regular upper computer, such as a Raspberry Pi FLY board, etc. If you are using a modified upper computer, we cannot provide much assistance due to too many issues.
Note
  • Do not use the ROOT user
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 an 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 and then select STMicroelectronics STM32 and press Enter

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

  • Select Bootloader offset, choose: 32KiB bootloader

  • Select Communication interface, choose: USB to CAN bus bridge (USB on PA11/PA12)

  • Press the Q key, and a Save configuration prompt appears, 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 will take some time

  • If the following content is output at the end, the compilation was successful

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

Firmware Flashing​

tip

Execute the following command to flash the firmware

sudo fly-flash -d c8 -h -f ~/klipper/out/klipper.bin