BL firmware

tip

• Please note that the bootloader has already been pre-flashed, no need to flash again.

Enter flashing mode

tip

The right one is the BOOT button, the left one is the RESET button

• There are two ways to enter flashing mode
• First method: With the board completely powered off, press the BOOT button and then connect one end of a data transfer cable to the board and the other end to your device
• Second method: After connecting one end of a data transfer cable to the board and the other end to your device, press the BOOT button and then press the RST button, then release the RST button and finally release the BOOT button
  

Flashing firmware

windows flashing tutorial

• Katapult firmware for E3-PRO-Ultra
  • Click the download link below
  • Loading...

Notes

• USB3.0 may not be able to burn, please try to use the USB2.0 of the computer for burning
• If there is no USB2.0 interface, please use an extension dock
• If it still cannot be burned, please use the host software for burning

1. Burning tool Download address
2. Need to download SetupSTM32CubeProgrammer and STM32 DFU driver
3. Copy the compiled firmware (klipper.bin) or the pre-compiled Katapult firmware to any directory on the computer
4. Use a Type-C data cable to connect the mainboard to the computer, and make sure it has entered the dfu burning mode
5. In STM32CubeProgrammer, select USB mode, refresh, and connect
   
6. If no error pop-up appears, the connection is successful.
   Warning

   If the content shown in the figure below appears, it is a computer or software problem. Please use the host software for burning:Host software burning tutorial

   
7. Click the left download icon and select the ones below
   
8. Click the Browse indicated by the arrow, then select the firmware you want to burn
   
9. Select Start address and input 0x08000000
   
10. Click Start automatic mode at the bottom to start burning the firmware
    
11. If the following prompt appears, it means the firmware has been burned successfully
    

tip

After flashing is complete, the board needs to be completely powered off once.