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tip
  • SHT36 V2 provides Katapult firmware with USB and CAN connections, which can be burned as needed
  • Burn Katapult Firmware
  • SHT36 V2 comes with pre-burned Katapult firmware for CAN connection at a rate of 1M
Notice

Firmware Burn-in Instructions

  • Firmware compilation and burn-in both require an upper-level machine
  • SHT36 V2 can use CAN connection method to connect with the upper-level machine
  • CAN needs to be connected using XT30(2+2)-F
  • Below is the appearance of the XT30(2+2)-F data cable
Note
  • Mainboard firmware burn-in needs to be done through Katapult to burn Klipper
  • If you are sure that the mainboard has already burned Katapult, you don't need to perform the final burn-in of Katapult firmware; that is just a precaution in case the Katapult firmware on the mainboard was not burned successfully
  • You can quickly press the reset button twice to check if there is an LED flashing on the mainboard; if there is, it means the mainboard has entered Katapult firmware

CAN Firmware Compilation​

  • SHT36 V2 can only connect to the upper-level machine via CAN
  • For STM 103, see 103CAN Firmware Burn-in
  • For APM 072 and STM 072, see 072CAN Firmware Burn-in

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.