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BL Firmware

tip
  • Please note that the bootloader has already been pre-flashed at the factory; no need to flash it again

Enter Flash Mode​

  • There are two methods to enter flash mode
  • First: With the motherboard completely powered off, hold down BOOT and then connect one end of a data cable to the motherboard and the other end to your device, suitable for Windows
  • Second: After connecting one end of a data cable to the motherboard and the other end to your device, hold down BOOT and then send the command, suitable for host computers
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Flash Firmware​

  • C8's bootloader firmware

    • Click on the download link below
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  • Move DIP switches 3 and 4 to the right, connect the slave device to the host via the built-in USB

  • Move DIP switches 1 and 2 to the left, otherwise it will affect the connection between the slave and the host

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Important Notice

To ensure successful STM32 programming, please pay attention to the following:

  • Some computer USB ports may experience unstable programming due to driver or signal compatibility issues. It is recommended to try connecting to a different USB port.
  • If changing ports does not help, an effective solution is to connect via an external USB hub, which often improves compatibility.
  • When the programming software reports the error message shown below, also try using a hub first. If the issue persists, please check or use the host computer for programming.
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  1. Programming Tool Download Link
  2. Download SetupSTM32CubeProgrammer and the STM32 DFU Driver.
  3. Download the firmware to any directory on your computer.
  4. Connect the mainboard to the computer using a Type-C cable. Ensure it has entered DFU programming mode.
  5. In STM32CubeProgrammer, select USB mode, refresh, and connect.
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  6. If no error pop-up appears, the connection is successful.
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  7. Click the download icon on the left and select the options shown below.
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  8. Click Browse as indicated by the arrow, then select the firmware you need to program.
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  9. For Start address, enter 0x08000000.
    • Note: If the firmware is in HEX format, please skip this step!!
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  10. Click Start automatic mode below to begin programming the firmware.
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  11. The prompt below indicates that the firmware programming is complete.
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