BL firmware

tip

• Please note that the bootloader has already been pre-flashed, no need to flash again

Enter programming mode

• There are two ways to enter programming mode
• First method: With the main board completely powered off, short-circuit BOOT and BOOT1, then connect one end of a data transfer cable to the main board and the other end to your device
• Second method: After connecting one end of a data transfer cable to the main board and the other end to your device, short-circuit BOOT and BOOT1, then press the RST key, release the RST key, and finally disconnect the BOOT jumper
  

Flashing firmware

Windows flashing tutorial

• Gemini bootloader firmware

  • Click the download link below
  • Loading...

• Set dip switches 3, 4 to the right, connect the lower machine and upper machine via built-in USB

• Set dip switches 1, 2 to the left, otherwise it will affect the connection between the lower machine and upper machine

  

Notice

• USB3.0 may fail to flash, please try to use the computer's USB2.0 for flashing
• If flashing still fails, please try using a host computer for flashing
• If the error below occurs, please use a USB hub
  

1. Flashing tool Download link
2. Please download SetupSTM32CubeProgrammer and STM32 DFU driver
3. Copy the previously compiled firmware klipper.bin, Katapult, or Marlin to any directory on your computer
4. Connect the motherboard to the computer using a Type-C cable, ensuring it has entered dfu flashing mode
5. In STM32CubeProgrammer, select USB mode, then refresh and connect
   
6. If no error pop-up appears, the connection is successful.
   Warning

   If the content shown in the figure below appears, it indicates a computer or software issue. Please use a host computer for flashing: Host Computer Flashing Tutorial

   
7. Click the download icon on the left and check the options below
   
8. Click the Browse button as indicated by the arrow, then select the firmware you need to flash
   
9. Enter 0x08000000 in the Start address field
   • Please note that if the firmware is in HEX format, skip this step!!
   
10. Click Start automatic mode below to begin flashing the firmware
    
11. If the prompt shown below appears, the firmware flashing is complete
    

Upper machine flashing tutorial

• Set dip switches 1, 2 to the right, connect the lower machine and upper machine via built-in USB
• Set dip switches 3, 4 to the left, otherwise it will affect the connection between the lower machine and upper machine
  
• After setting the dip switches as described, the USB port below will be occupied by the lower machine, please do not connect other devices
  

1. 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

2. 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

3. 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

4. Flashing firmware

tip

Only one of the firmware needs to be flashed

• The following is the bootloader firmware writing command

  sudo dfu-util -a 0 -d 0483:df11 --dfuse-address 0x08000000 -D ~/FLY_Katapult/BL/Gemini/GeminiV3.bin

5. If the content shown in the arrow in the following figure appears File downloaded successfully, the flashing is successful

warning

Ignore the error after the line indicated by the red arrow!

tip

After flashing, the main board needs to be completely powered off once.