At the moment ADC1 can't read VBAT data correctly, and I can't get into DFU
mode through the menu yet, I haven't found the cause of the problem yet
If MCU is changed from original nanoVNA, then I guess
also need change to NANOVNA_STM32_F072/board.h
for BOOT_FROM_SYTEM_MEMORY_MAGIC_ADDRESS
ADC1 address is buried in ChibiOS/os/common/ext/CMSIS/ST/*
Oristo