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Katapult Firmware

Katapult Firmware Description​

Tip
  • The Fly-D7 motherboard can only be BL flashed via the Type-C USB interface
  • It comes pre-installed with the Katapult firmware by default

Entering Flash Mode​

Tip

Left is the RST button, right is the BOOT button

  • There are two methods to enter flash mode
  • Method 1: With the tool board completely powered off, hold the BOOT button, then connect one end of a Type-C cable (with data transfer capability) to the motherboard and the other end to your device
  • Method 2: After connecting one end of a Type-C cable (with data transfer capability) to the motherboard and the other end to your device, hold the BOOT button, press the RST button, then release the RST button, and finally release the BOOT button
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Flashing Firmware​

  • D7 Katapult Firmware
  • You can download the firmware via the link below:
Please note

The zip archive must be extracted before use.

  • Alternatively, download the complete repository via git (ensure the host machine has internet access):

  • For general systems

    cd && git clone https://cnb.cool/3dmellow/FLY-Firmware.git

  • For FLY host machine

    git clone https://cnb.cool/3dmellow/FLY-Firmware.git /data/FLY-Firmware
    ln -s /data/FLY-Firmware /root/FLY-Firmware

  • If the firmware package has already been downloaded, it is recommended to update to the latest version before proceeding:

    cd ~/FLY-Firmware && git pull
  • The previous repository is no longer maintained. To delete it, execute: 
    rm -rf ~/FLY_Katapult /root/FLY_Katapult
  • Firmware location:
FLY-Firmware/MainBoard/D
Notice

To ensure successful STM32 flashing, please note the following:

  • The USB port on some computers may cause unstable flashing due to driver or signal compatibility issues. It is recommended to try a different USB port for connection.
  • If changing ports does not work, an effective solution is to connect via an external USB hub, which often improves compatibility.
  • When the flashing software reports the error shown below, please also prioritize trying a USB hub. If the issue persists, check or use the host computer for flashing.
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  1. Flashing tool Download Link
  2. You need to download SetupSTM32CubeProgrammer and STM32 DFU Driver
  3. Download the firmware 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, refresh, and connect
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  6. If no error popup appears, the connection is successful.
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  7. Click the download icon on the left and check the following options
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  8. Click Browse as indicated by the arrow, then select the firmware you need to flash
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  9. Set Start address to 0x08000000
    • Note: If the firmware is in HEX format, please skip this step!!
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  10. Click Start automatic mode below to begin flashing the firmware
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  11. The following prompt indicates that the firmware flashing is complete
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