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STM32F3 Discovery Bootloader No NACK Received

Question asked by Fong WH on Nov 2, 2017
Latest reply on Nov 3, 2017 by Fong WH


I'm facing a problem of getting the STM32F3 Discovery board bootloader to work. AN2606 calls for pattern 2 to be applied so I pulled up the BOOT0 pin. A check with STLink shows the nBOOT1 bit is 1 so upon powering up the board, the application firmware inside the MCU did not run. But when I send 0x7f through USART1, there is no response from the bootloader.


Anybody has any idea what I'm missing?