BL firmware
- Please note that the
bootloader
has already been pre-flashed, no need to flash again
Enter programming mode
- There are two ways to enter programming mode
- First method: With the mainboard completely powered off, long press BOOT and connect one end of a data transfer cable to the mainboard and the other end to your device, suitable for WINDOWS
- Second method: After connecting one end of a data transfer cable to the mainboard and the other end to your device, long press BOOT and enter the command, suitable for the host computer
Programming the firmware
- Windows programming tutorial
- Host computer programming tutorial
-
C8 bootloader firmware
- Click the download link below
-
Loading...
-
Set the dip switches
3
,4
to the right, connect the lower machine and the host computer via the built-in USB -
Set the dip switches
1
,2
to the left, otherwise it will affect the connection between the lower machine and the host computer
USB3.0
may fail to burn, please try to use theUSB2.0
of the computer for burning- If it still cannot be burned, please use the host software for burning
- If the error below appears, please use a USB extension dock
- Burning tool Download address
- Need to download
SetupSTM32CubeProgrammer
andSTM32 DFU driver
- Copy the compiled firmware
klipper.bin
,Katapult
orMarlin
to any directory on the computer - Use a Type-C data cable to connect the mainboard to the computer, and make sure it is in
dfu
burn mode - In STM32CubeProgrammer, select USB mode, refresh and connect
- If no error pop-up appears, the connection is successful.
Warning
If the content shown in the figure appears, it is a computer or software issue. Please use the host software for burning:Host software burning tutorial
- Click the left download icon and select the ones below
- Click the
Browse
indicated by the arrow, and then select the firmware you need to burn - Select
Start address
and input0x08000000
- Please note that if the firmware is in
HEX
format, skip this step!
- Please note that if the firmware is in
- Click
Start automatic mode
at the bottom to start burning the firmware - If the prompt below appears, it means the firmware has been burned successfully
-
Set the dip switches
1
,2
to the right, connect the lower machine and the host computer via the built-in USB -
Set the dip switches
3
,4
to the left, otherwise it will affect the connection between the lower machine and the host computer -
After setting the dip switches as described above, the USB port below will be occupied by the lower machine, please do not connect other devices
-
Please ensure the host computer can access the internet
sudo wget https://cnb.cool/3dmellow/public/static-files/-/git/raw/main/firmware/HIDBL.bin -O ~/HIDBL.bin && sudo fly-flash -d c8 -u -f ~/HIDBL.bin
-
When the following prompt appears, long press the BOOT key on the lower machine and then press Enter
-
When the following image appears, it indicates that the programming is successful and you can release the BOOT key