Katapult Firmware

tip

• Please note that katapult is pre-installed from the factory and does not need to be re-flashed.

Entering Flash Mode

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The circled area is the BOOT button.

• To enter flash mode, ensure the mainboard is completely powered off. Press and hold the BOOT button, then connect a data cable (capable of data transfer) with one end to the mainboard and the other end to your device.
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Flashing Firmware

• Windows Flashing Tutorial
• Host PC Flashing Tutorial

• Katapult Firmware for Micro4
  • Click the download link below.
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• Prepare a data cable with data transfer capability
• Download the firmware to your computer
• Connect the BOOT jumper or hold down the button while connecting to the computer. At this point, the RPI-RP2 disk will appear
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• Remove the BOOT jumper or release the button!!!
• Copy the firmware to be flashed into the disk. Please note that only firmware with the UF2 file extension can be used!!! (Do not modify the file extension—it will not work)
• Reference
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• After copying the firmware, the RPI-RP2 disk will automatically disappear, indicating that the firmware flashing is complete!

1. Install the Flashing Tool

   • Enter the following command in SSH
   • This only needs to be executed for the first flash; no need to repeat later

   cd ~/klipper/lib/rp2040_flash/ && make

2. Run the command below to check if the connection is successful.

   • Enter lsusb

   • If there is no 2e8a:0003 device, try re-entering flashing mode

   • Due to system version differences, it may display other names. If 2e8a:0003 appears, it indicates entry into flashing mode.

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   Note

   Proceed to the next step only when 2e8a:0003 is present.

3. Pull the Pre-compiled Firmware

   • These are all pre-compiled firmware files.
   • Please note that the host computer must have internet access to install.
   • The host computer needs to execute the following command to download the firmware package.

   cd && git clone https://github.com/FengHua741/FLY_Katapult.git

   • If the firmware package has already been downloaded, it is recommended to update it before proceeding with the remaining steps.

   cd ~/FLY_Katapult && git pull

4. Flash the Firmware

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Only one firmware needs to be flashed.

• Below is the firmware flashing command:

  sudo ~/klipper/lib/rp2040_flash/rp2040_flash ~/FLY_Katapult/BL/Mico/Mico_Katapult_USB.uf2

5. If the following prompt appears, the flashing is successful:

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After flashing is complete, the mainboard needs to be completely powered off once.