Katapult Firmware

Katapult Firmware Description

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• ERCF V2 supports CAN, RS232, USB
• Only CAN firmware is provided here, with rates of 500K and 1M

Entering Flash Mode

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The circled area is the BOOT button

• To enter flash mode, the mainboard must be completely powered off. Press and hold the BOOT button, then connect a Type-C cable with data transfer capability between the mainboard and the host computer.
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Flashing the Firmware

• Windows Flashing Tutorial
• Host Computer Flashing Tutorial

• Katapult firmware for ERCF V2
  • Click the download link below
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• Prepare a data cable with data transfer capabilities.
• Download the firmware to the computer.
• Connect the BOOT jumper or hold it and connect it to the computer, at this point the RPI-RP2 disk will appear.
• Remove the BOOT jumper or release the button!!!
• Copy the firmware that needs to be burned into it, please note that only UF2 suffix firmware can be used!!! (Do not modify the suffix name, it is useless.)
• Refer to
• After copying the firmware into the RPI-RP2 disk, it will automatically disappear, indicating that the firmware burning is complete!

1. Install the flashing tool

   • Enter the following command in SSH
   • Only need to execute it for the first flash, no need to execute again later

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

2. Execute the following command to check if the connection is successful.

   • Enter lsusb

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

   • Due to system version issues, it may display other names. If 2e8a:0003 is present, it means the flash mode has been entered

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   Notes

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

3. Pull the pre-compiled firmware

   • All are pre-compiled firmware here
   • Please note that the host computer needs to be online 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

   • It is recommended to update the firmware package if you have already downloaded it before proceeding with the remaining operations

   cd ~/FLY_Katapult && git pull

4. Flash the firmware

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Only one firmware needs to be flashed.

• Below is the command to flash the 500K CAN rate firmware:

  sudo ~/klipper/lib/rp2040_flash/rp2040_flash ~/FLY_Katapult/BL/ERCF/FLY_ERCFV2_CANBOOT_CAN_500K.uf2

• Below is the command to flash the 1M CAN rate firmware:

  sudo ~/klipper/lib/rp2040_flash/rp2040_flash ~/FLY_Katapult/BL/ERCF/FLY_ERCFV2_CANBOOT_CAN_1M.uf2

• Below is the command to flash the USB firmware:

  sudo ~/klipper/lib/rp2040_flash/rp2040_flash ~/FLY_Katapult/BL/FLY_ERCFV2_CANBOOT_USB.uf2

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

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

Confirm if the Firmware has Started

• If the firmware starts normally, the LED will blink.
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