Firmware Explanation

Notice

It is best to compile the Klipper firmware using your host machine firmware
Using precompiled firmware or different firmware versions can lead to various issues
Try not to use modified host machines

Special Notes

Most FLY motherboards are pre-flashed with Katapult firmware upon factory release
FLY motherboards primarily use Katapult firmware for flashing Klipper firmware
The DP5, D5, and D7 motherboards require manual flashing of the corresponding Katapult firmware
Due to previous firmware impacts, after flashing Katapult firmware, if you need to search for the motherboard ID, you must click the motherboard reset twice, otherwise, the firmware cannot be flashed

tip

FLY motherboards use Katapult and SD card for flashing the bootloader
The advantage of Katapult firmware is that it allows for firmware updates without direct contact with the motherboard
The advantage of bootloader firmware is that you don't have to worry about flashing the wrong firmware
It is recommended to use MobaXterm for firmware configuration; some special SSH software reported by community members may cause compilation failure

Please note that regardless of which firmware you use, ensure correct compilation to avoid issues such as inability to find the printer or the device itself

tip

Pay attention to selecting the Enable extra low-level configuration options option, otherwise, the specific content will not be displayed

If configuring GPIO pins to set at micro-controller startup during STM32 firmware compilation, please ensure they are in uppercase

If configuring GPIO pins to set at micro-controller startup during RP2040 firmware compilation, please ensure they are in lowercase

Notice

When flashing Klipper firmware via Katapult firmware, ensure the device can be found. If the device cannot be found, manually click the motherboard reset twice
Do not use methods outside of the tutorial for flashing firmware
Check for compilation errors before flashing. Compilation errors will prevent normal firmware flashing

Solution for flashing a compiled-error firmware using Katapult firmware
Click the motherboard reset twice. After resetting, an LED should flash normally
Clear the motherboard firmware and then re-flash Katapult firmware

Solution for flashing a compiled-error firmware using bootloader firmware
Re-flash using an SD card
If it doesn't work, disconnect power, install the SD card onto the motherboard, and then power on. It should take five seconds to complete the flashing process