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The BFC controller uses the 5V-powered HK32F030C8T6, which is largely compatible with the STM32F030C8T6 in terms of registers. Therefore, firmware updates can generally be performed using the same tools (select the STM32F030C8T6 option in the software).

- Firmware Update Interface: SWD Interface (GND, CLK, DIO, VCC)
- Supported Tools: ST-Link, DAP-Link, etc.
- Software: CooCox CoFlash, STM32CubeProgrammer, etc.

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