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tip
  • SHT36 LIS3DH comes with pre-flashed CAN-connected Katapult firmware at a rate of 1M
  • SHT36 LIS3DH CAN-connected Katapult firmware has rates of 500K and 1M; users can flash it themselves if needed
  • Katapult Firmware Burning

Firmware Burning Instructions

  • SHT36 LIS3DH can only connect to the host machine via CAN
  • CAN needs to be connected using XT30(2+2)-F
  • Below is the XT30(2+2)-F data cable style
Notice
  • Mainboard firmware burning requires flashing Klipper through Katapult
  • If the mainboard is confirmed to have flashed Katapult, there is no need to perform the final Katapult firmware burning; this is just a precaution in case the mainboard's Katapult firmware was not successfully flashed
  • You can quickly press the reset button twice to see if an LED on the mainboard is blinking; if it is, it indicates that the mainboard has entered Katapult firmware

How to Determine Which Firmware You Need​

  • SHT36 LIS3DH can connect to the host machine using the following methods
  • CAN Firmware Burning
    • Advantage: If you flash the Katapult firmware, you can update the firmware without touching the motherboard and it supports bus connections
    • Disadvantage: Using KlipperScreen together may cause errors such as homing timeout
    • Tip: If you need to use CAN, ensure that the host machine supports CAN and that it is paired with UTOC or a motherboard flashed with bridge firmware

Katapult Firmware Instructions​

tip

Katapult was originally named CanBoot and was later renamed.

  • Katapult firmware is a type of bootloader that can be used in conjunction with Klipper. After being flashed using methods like DFU, you can use commands to update the firmware in one click.
  • Advantages: Double resetting or quickly cutting power twice will enter the Katapult firmware, and the pre-configured LED will flash; if not configured, it won't flash.
  • The Katapult firmware can only be used for flashing firmware and cannot connect to Klipper!!!
  • There are three ways to connect the Katapult firmware to the host machine:
    • CAN connection
      • Advantages: After compiling the KLIPPER firmware, you can directly update the firmware using commands.
      • Disadvantages: You need to know the firmware compilation rate in advance.
    • RS232 connection
      • Advantages: After compiling the KLIPPER firmware, you can update the firmware using commands.
      • Disadvantages: You cannot update the firmware in one click using commands; you need to manually enter the Katapult firmware.
    • USB connection
      • Advantages: After compiling the KLIPPER firmware, you can directly update the firmware using commands.