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Onboard UTOC (CAN Bus) Interface Description

Important Notice

The CAN interface of the Fly-MINI-Pad cannot be disabled via software. Therefore, please pay attention when using it:

Usage Scenarios and Configuration Methods​

  • If you need to connect a CAN tool board: You must flash the motherboard with USB firmware, then connect the CAN tool board directly to the CAN interface of the Fly-MINI-Pad.
  • If CAN functionality is not needed: This interface can be left idle without affecting other functions.

Wiring​

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Solution When UTOC Cannot Be Found​

  • Short-circuit the pins as shown in the diagram below with the power off

  • Ensure the short-circuit is properly in place, then power on the system

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Flashing​

  1. FLY host computer usually has dfu-util built-in, no need to install flashing tool again.
  2. Confirm the device has entered DFU flashing mode.
    lsusb

    If you can see 314b:0106, it means DFU flashing mode has been entered successfully.

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  3. Pull/update firmware repository.
    git clone https://cnb.cool/3dmellow/FLY-Firmware /data/FLY-Firmware
    ln -s /data/FLY-Firmware /root/FLY-Firmware
    cd /data/FLY-Firmware && git pull --ff-only
  4. Flash firmware.
    sudo dfu-util -a 0 -d 314b:0106 --dfuse-address 0x08000000 -D /data/FLY-Firmware/ExtensionBoard/UTOC/FLY_UTOC.bin
  5. If File downloaded successfully appears, flashing is successful.
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  • After flashing is complete, power off and restart.
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