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Firmware Flashing Guide

Host Connection Guide

Core Connection Limitation

The Fly-D7 mainboard can only communicate with the host via the Type-C USB interface for Klipper.

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Connection Requirements:

  • Use a high-quality Type-C data cable to ensure stable data transmission.
  • It is recommended to avoid using excessively long data cables (not exceeding 1.5 meters).
  • Connect to a standard USB-A port on the host computer.

How to Choose the Correct Firmware

🔧 Firmware Selection Rules

Please select the correct firmware according to your connection method and toolboard type, following the rules below:

Configuration ScenarioMainboard FirmwareToolboard FirmwareKey Notes
No Toolboard Used
(Direct USB Connection)
USB FirmwareMost common configuration, suitable for most single-extruder printers.
Using a CAN ToolboardCAN Bridge FirmwareCAN FirmwareCommunication via CAN bus. Please note: The mainboard must be flashed with CAN Bridge firmware; otherwise, a USB-to-CAN adapter (such as UTOC) is required.
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