How to Configure Katapult for USB Operation on the Fly-D5
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Configuring and installing CanBoot bootloader for USB

Overview

Katapult allows you to update your mainboard via USB, so no rebooting and rewiring is necessary. We recommend using Katapult for this additional convenience.

Install Katapult package

  • ssh into your klipper host console

  • Clone the Katapult firmware to your Klipper Host

    cd ~/
    git clone https://github.com/Arksine/katapult
    
  • From your Fluidd or Mainsail web UI Edit Moonraker.conf and add the following at the bottom to allow Moonraker to manage updates to Katapult.

    [update_manager Katapult]
    type: git_repo
    path: ~/katapult
    origin: https://github.com/Arksine/katapult.git
    is_system_service: False
    

Compile Katapult firmware

  • cd to the Katapult directory

    cd ~/katapult
    
  • Run make clean

    make clean KCONFIG_CONFIG=config.d5
    
  • Open menuconfig

    make menuconfig KCONFIG_CONFIG=config.d5
    
  • Set the following settings
    • Micro-controller Architecture (STMicroelectronics STM32)
    • Processor model (STM32F072)
    • Build Katapult deployment application (8KiB bootloader)
    • Clock Reference (8 MHz crystal)
    • Communication interface (USB (on PA11/PA12))
    • Application start offset (8KiB offset)
    • () GPIO pins to set on bootloader entry
    • [*] Support bootloader entry on rapid double clip of reset button
    • [ ] Enable bootloader entry on button (or gpio) state
    • [ ] Enable Status LED

      Katapult Menu Config USB
      Katapult Menu Config USB
  • Quit and save the configuration

  • Run the make command to compile the firmware

    make KCONFIG_CONFIG=config.d5 -j4
    
  • You should now have a katapult.bin file at ~/katapult/out/

Enter DFU Mode

Flash Katapult to the Fly-D5 MCU

make sure dfu-util is installed.

sudo apt install dfu-util -y

run lsusb to verify the board has been detected in DFU mode.

lsusb
STM32 DFU Mode Detected
STM32 DFU Mode Detected

Flash katapult

sudo make KCONFIG_CONFIG=config.d5 flash FLASH_DEVICE=0483:df11

This will flash the Katapult bootloader image and restart the Fly-D5.

DFU Mode Flash Successful
DFU Mode Flash Successful

run lsusb to verify the MCU has been discovered as a USB device

Example lsusb Output
Example lsusb Output

Continue to the Klipper for USB configuration section

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