Connect Klipperr
- This tutorial only covers the method to connect klipper
- Any other configurations and macros used need to be written by yourself
Flashing BL
Entering Flash Mode
- There are two ways to enter flash mode
- First method: With the motherboard completely powered off, press the BOOT button and then connect one end of a data transfer cable to the motherboard and the other end to your device
- Second method: After connecting one end of a data transfer cable to the motherboard and the other end to your device, press the BOOT key and then press the RST key, then release the RST key and finally release the BOOT key
Flashing Firmware
- Windows Flash Tutorial
- Host Flash Tutorial
- Buffer BL firmware
- Baidu Netdisk:Baidu Netdisk Download Link
- GOOGLE Netdisk:GOOGLE Netdisk
- System compatibility issues, please use the computer's
USB2.0
for burning - If it still cannot be burned, please use the host machine for burning
- Burning tool Download link
- Need to download
SetupSTM32CubeProgrammer
andSTM32 DFU driver
- Copy the firmware (klipper.bin) compiled in front or the precompiled
Katapult firmware
to any directory on the computer - Use a Type-C data cable to connect the motherboard to the computer, make sure it is already:Enter DFU burning mode
- In STM32CubeProgrammer, select USB mode, refresh, and connect
- If no error pop-up appears, then the connection is successful.
Warning
If the content shown below appears, it indicates a problem with the computer or software, please use the host machine for burning:Host machine burning tutorial
- Click the download icon on the left and select several options below
- Click the
Browse
button indicated by the arrow, then select the firmware you need to burn - Select
Start address
and enter0x08000000
- Click
Start automatic mode
below to start burning the firmware - The prompt below indicates that the firmware burning is complete
- Install the burning tool
- No need to install the burning tool for the FLY upper computer
- If you need to install, please note: The upper computer needs to be connected to the internet to install normally
- If already installed, no need to install
sudo apt update
sudo apt install dfu-util -y
- Execute the following command to check if the connection is successful.
lsusb
- If there is no DFU device, please try to re-enter burning mode
- Due to system version issues, other names may be displayed. If
0483:df11
is shown, it indicates that the burning mode has been entered

- Pull the pre-compiled firmware
- These are all pre-compiled firmwares
- Please note: The upper computer needs to be connected to the internet to install
- The upper computer needs to execute the command below to download the firmware package (if unable to get the file due to network issues on the upper computer, please contact the administrator in the after-sales group)
cd && git clone https://github.com/FengHua741/FLY_Katapult.git
- If the firmware package has already been downloaded, it is recommended to update the firmware package before proceeding with the remaining operations
cd ~/FLY_Katapult && git pull
- Flashing Firmware
Only one of the following firmwares needs to be flashed
- Below are the firmware flashing instructions
sudo dfu-util -a 0 -d 0483:df11 --dfuse-address 0x08000000 -D ~/FLY_Katapult/BL/buffer/FLY_BUFFER
-
If the content shown in the arrow in the following picture appears, the flashing is successful
After flashing, the motherboard must be completely powered off once.
USB Firmware Compilation
Start Compiling
- 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
- 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>
- 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
请确保键盘输入法为半角模式,即英文模式
- 键盘上键
↑
,下键↓
,用于上下移动光标来选中菜单项 - 确认键
Enter
或 空格键Space
,用于勾选菜单或进入子菜单 - 退出键
ESC
,用于返回上一级菜单 Q
键,用于退出Klipper固件配置页面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
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 to compile 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 STM32F072 and press Enter
-
Select Bootloader offset, choose: 8KiB bootloader
-
Communication interface, select: USB (on PA11/PA12) and press Enter
-
Please verify against the following image to ensure it matches before proceeding
- Press the
Q
key, and when Save configuration appears, press theY
key again - You should now have saved the configuration and exited to the command line interface
- Enter the following command to start compiling, which may take some time
make -j4

-
If the following output appears, the compilation was successful
Linking out/klipper.elf
Creating hex file out/klipper.bin
- Below is the operation record of the firmware compilation process
Entering Flash Mode
D5 boards produced after September 1, 2024 already have the Katapult firmware pre-flashed
- After connecting the motherboard to the host computer with a TypeC data cable, double-click the reset button, at this point the LED on the motherboard will blink.
- If there is no LED blinking, please re-flash the Katapult firmware:Flash Katapult Firmware
- If there is no LED blinking, please proceed to the next step after flashing the Katapult firmware

Confirm Whether Entering Flash Mode
- Please ensure that the host machine can connect to the network normally and ensure that the data cable connecting the lower-level machine to the host machine has data transmission function.
- After SSH connecting to the host machine, input
lsusb
and press Enter. If the information circled in the following picture appears, you can proceed to the next step.- If there is no feedback at all, this is a system problem of the host machine, and we are unable to help. You need to replace with a confirmed normal system or replace the host machine.
- If the prompt says there is no
lsusb
command, you can execute the following command to install it:sudo apt-get install usbutils
1d50:6177
belongs to the device you will use this time.- Some host machines may not fully display or fail to display due to system problems.
- If the
lsusb
command can display the device but does not show1d50:6177
, please try replacing the data cable and connecting the mainboard to another USB port on the host machine.
- If you have executed the above steps before and successfully burned the Klipper firmware, and the mainboard is running normally, but you just want to update the Klipper firmware, please directly check the
Firmware Update
section in the right menu bar of this page.
You must query the 1d50:6177
device before proceeding to the next step.
Flashing Firmware
- When installing the programming plugin, you need to be connected to the internet. Please ensure that your host computer is already properly connected to the Internet.
- If it has been installed, there is no need to install it again.
Start Programming
- For non-fly host computers, please make sure to execute the following code to install the dependency package for firmware programming! Otherwise, the firmware cannot be programmed!
cd && git clone https://github.com/Arksine/katapult.git
- Use this command to install in China
cd && git clone https://gitee.com/MrCakeFuck/katapult.git

-
Use the following instruction to search for your device ID, and the ID shown in the figure below should appear (note: the ID shown in the figure is for reference only, and each motherboard has a different ID):
ls /dev/serial/by-id/*
-
To program the firmware, use the following code, and make sure the firmware has been compiled successfully. Please replace
<your motherboard ID>
with the ID queried in the previous step.~/klippy-env/bin/python ~/katapult/scripts/flashtool.py -d /dev/serial/by-id/<your motherboard ID>
For the fast
system, use this command to program, please replace <your motherboard ID>
with the ID queried in the previous step.
python ~/katapult/scripts/flashtool.py -d /dev/serial/by-id/<your motherboard ID>
-
Below is a reference:
-
After programming is complete, refer to the following:
Firmware Update
- USB Firmware Update
- Bridge CAN Firmware Update
-
Use the following instruction to search for your motherboard ID, and the ID shown in the figure below should appear (note: the ID shown in the figure is for reference only, and each motherboard has a different ID).
ls /dev/serial/by-id/*
In the figure below, /dev/serial/by-id/usb-katapult_rp2040_E662549553642032-if00
is the motherboard's ID.

-
To update the USB firmware, after compiling the latest firmware, enter the following command to update, please replace
<your motherboard ID>
with the ID queried in the previous step.cd ~/klipper/ && make flash FLASH_DEVICE=<your motherboard ID>
- To update the USB bridge CAN firmware, you need to enter the Katapult after compiling the latest firmware. Enter the following command (the ID in the figure below is for reference only, please use the ID in your configuration file).
<your CANBUS UUID>
is the CANBUS UUID of the motherboard in your printer.cfg configuration file.
~/klippy-env/bin/python3 ~/katapult/scripts/flashtool.py -i can0 -r -u <your CANBUS UUID>
For the fast
system, use this command to burn, please replace <your motherboard ID>
with the ID queried in the previous step.
python3 ~/katapult/scripts/flashtool.py -i can0 -r -u <your CANBUS UUID>
- In the figure below,
f95cee90e1f9
is the motherboard's CANBUS UUID.

-
After resetting into Katapult, use the following command to search for your motherboard ID, and the ID shown in the figure below should appear (note: the ID shown in the figure is for reference only, and each motherboard has a different ID).
ls /dev/serial/by-id/*
In the figure below, /dev/serial/by-id/usb-Klipper_stm32f072xb_43002C000951324757373520-if00
is the motherboard's ID.

-
Make sure to execute the programming after the new firmware is compiled successfully. Please replace
<your motherboard ID>
with the ID queried in the previous step.cd ~/klipper/ && make flash FLASH_DEVICE=<your motherboard ID>
Solution for Incorrect Firmware Burning
- Power off the motherboard, power on again, and quickly double-click the reset button to re-enter programming mode.
- Or use the window/host machine to re-burn the katapult firmware burn katapult firmware
Search for USB ID
- Open the browser and enter the IP address of the host computer in the address bar, for example, if the IP address of my host computer is
192.168.101.179
, simply enter it and press Enter.

- Open the WEB interface of the host computer, find in the configuration options on the left sidebar:
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- Click into
printer.cfg
, then clickDEVICES
on the top right
![]() | ![]() |
- Click
SERIAL
, then refresh
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- Copy the ID, click the arrow to copy
![]() |
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Fill in USB ID
- Close
DEVICES
and fill in the ID
- Please modify the configuration file as follows:
[mcu]
serial: /tmp/klipper_host_mcu
to
[mcu host]
serial: /tmp/klipper_host_mcu
- Add:
[mcu]
serial: <replace with the ID you just queried>
![]() |
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- Fill in the ID in the configuration
- After filling in the ID, click
SAVE & RESTART
on the top right
![]() | ![]() |
- If Klipper prompts
ADC out of range
, this is a normal phenomenon. Connect the heated bed and thermistor to the motherboard, configure the thermistor pins for the nozzle and heated bed, then save and restart.
Note: All IDs mentioned in the document are examples. Each motherboard has a different ID, please fill in the actual obtained ID.