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UART2 bootloader is not work.Should I flash a bootloader program to enable usart2 booloader.Which uart has default bootloader program.
I am developing with Nucleo-F411RE Board an trying to use UART2 bootloader to flash my program.I use STM32CubeProgrammer to do this.when connect my board, ide report that Error: Activating device: KO. Please, verify the boot mode configuration and ch...