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tip
  • SHT36 V2 provides Katapult firmware with USB and CAN connections, you can burn it yourself if needed
  • Katapult Firmware Burning
  • SHT36 V2 is pre-flashed with Katapult firmware for CAN connection at a rate of 1M
Notes

Firmware Burning Instructions

  • Firmware compilation and firmware burning both require the use of a host computer
  • SHT36 V2 can connect to the host computer via CAN
  • CAN needs to use XT30(2+2)-F for connection
  • Below is the data cable style of XT30(2+2)-F
Notice
  • Mainboard firmware burning needs to be done through Katapult burning Klipper
  • If you are sure that the mainboard has already been burned with Katapult, there is no need to burn the Katapult firmware at the end

CAN Firmware Compilation

  • SHT36 V2 can only connect to the host computer via CAN
  • STM 103 Please see 103CAN Firmware Burning
  • APM 072 and STM 072 Please see 072CAN Firmware Burning

Katapult Firmware Description

tip

Katapult was originally named CanBoot, and later renamed to katapult.

  • Katapult firmware is a type of bootloader that can be used in conjunction with Klipper. After burning the firmware using methods like DFU, you can use commands to update the firmware with one click.
  • Advantage: Quickly double-clicking the reset button or quickly cutting power twice will enter the Katapult firmware, at which point there will be an LED flashing on the mainboard.
  • Katapult firmware can only be used to burn firmware and cannot connect to Klipper!!!
  • Katapult firmware supports three connection methods for connecting to the host computer, and the firmwares for these three methods are independent of each other.
    • CAN connection
      • Advantage: After compiling the KLIPPER firmware, you can directly update the firmware using a command, and it has strong interference resistance.
      • Disadvantage: You need to know the firmware compilation rate in advance.
    • RS232 connection
      • Advantage: After compiling the KLIPPER firmware, you can update the firmware using a command, and it has very strong interference resistance.
      • Disadvantage: You cannot use a command to update the firmware with one click; you need to manually enter the Katapult firmware.
    • USB connection
      • Advantage: After compiling the KLIPPER firmware, you can directly update the firmware using a command.
      • Disadvantage: A long data cable is prone to interference, which may lead to disconnection.
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