STM32U575/585, how to enter ROM bootloader to flash SW at very first time.
First I was reading:Reference manualSTM32U575/585 Arm®-based 32-bit MCUs4 Boot modesST programmeddefault valueNSBOOTADD0[24:0]Flash: 0x0800 0000NSBOOTADD1[24:0]Bootloader:0x0BF9 0000Then:AN2606Application noteSTM32 microcontroller system memory boot ...