On the official basis, RST, BOOT buttons and chip power supply DIP switch are designed to facilitate switching RSIC/ARM mode and updating firmware. The overall function will be verified after the board comes back.
January 7, 2022: Looking forward to it, the board should be available on Monday.
January 11, 2022: It has been verified that the serial port, SWD function, RSIC/ARM mode supports CH32V307 microcontroller and STM32F1, and other self-tests.
Short circuit TX/GND, RST reset switching mode;
BOOT, RST reset, update firmware.
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