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The serial port connection for stm32f4discovery board

hduffddybz
Associate
Posted on July 09, 2015 at 03:28

Hi!I am new to STM32F4Discovery and FreeRTOS,and recently I run FreeRTOS on STM32F4Discovery board,but I found that it is hard to use serial port since there are too many uart pins on this board,so My questions is that how can I successfully connect the ''usb to ttl'' board to Discovery board(You know that B6/B7,A8/A9 all stands for USART1). In addition, I change the value of ''HSE_VALUE'' to 8000000 since the frequency of external crystal is 8MHz.

1 REPLY 1
Posted on July 09, 2015 at 03:49

PA9/PA10 USART1 is not viable due to a capacitor.

Would suggest USART6 via PC6/PC7

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