tip
- SHT36 V3 comes pre-programmed with the Katapult firmware for CAN connection, at a rate of 1M
- The Katapult firmware for SHT36 V3 CAN connection has rates of 500K and 1M, and can be programmed by yourself if needed
- Katapult Firmware Burning
Firmware Burning Instructions
- Both firmware compilation and firmware burning require the use of a host computer
- SHT36 V3 can connect to the host computer using RS232 or CAN
- RS232 and CAN need to use
XT30(2+2)-F
for connection - The following is the data cable style of
XT30(2+2)-F
Notes
- Burning the mainboard firmware requires using Katapult to burn Klipper
- If the mainboard has already been burned with Katapult, there is no need to burn the Katapult firmware at the end
How to determine which firmware you need
- SHT36 V3 can connect to the host computer using the following methods
-
CAN Firmware
- Benefits: If you have burned the
Katapult
firmware, you can update the firmware without touching the mainboard, and it supports bus connection - Drawbacks: It may cause errors such as homing timeout when used together with
KlipperScreen
. - Note: If you need to use CAN, make sure the host computer supports CAN, and you need to pair it with UTOC or a mainboard with bridging firmware
- Benefits: If you have burned the
-
RS232 Firmware
- Benefits: No special software is required, communication is reliable and stable
- Drawbacks: To reprogram the firmware, you need to enter manual DFU to update the firmware or double-click RST to enter
Katapult
to update the firmware - Note: Needs to be paired with G2T or UTOR to be used
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.
- CAN connection
Loading...