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SoHaeng.Lee
SoHaeng.Lee
Associate III
February 1, 2016
Question

Nucleo-F446RE USART3 Problem(Source Attached)

  • February 1, 2016
  • 6 replies
  • 1551 views
Posted on February 01, 2016 at 07:01

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    6 replies

    AvaTar
    AvaTar
    Senior III
    February 2, 2016
    Posted on February 02, 2016 at 10:38

    I don't use/know the Cube code setup, but I can't see where you enable the clock to the GPIO peripheral port(s) you are using.

    And why not using two adjacent pins on one port (PB10/PB11 or PC10/PC11 for USART3) ?

    Nesrine M_O
    Nesrine M_O
    Associate
    February 2, 2016
    Posted on February 02, 2016 at 10:51

    Hi sohaeng.lee,

    Issue resolved as described in this [DEAD LINK /public/STe2ecommunities/mcu/Lists/STM32Discovery/Flat.aspx?RootFolder=/public/STe2ecommunities/mcu/Lists/STM32Discovery/Nucleo%20F446RE%20UART%20not%20work%28with%20HAL%29&FolderCTID=0x01200200770978C69A1141439FE559EB459D75800084C20D8867EAD444A5987D47BE638E0F&currentviews=15]discussion

    Please avoid the duplication of discussion with same topic because it will be difficult for us and for forum users to follow the status of issues you are facing. 

    -Syrine-

    SoHaeng.Lee
    SoHaeng.LeeAuthor
    Associate III
    February 2, 2016
    Posted on February 02, 2016 at 11:37

    To AvaTar.

    Nucleo-F446RE Board is not provide PB11.

    And the reason of not use PC11,

    USART3 for Nuclo-F446RE created by STM32CubeMX is PB10,PC5.

    So, as you said, I was tried PC10/PC11.

    The result was same. (PC11 Rx not work and board down) 

    AvaTar
    AvaTar
    Senior III
    February 2, 2016
    Posted on February 02, 2016 at 12:39

    May perhaps your ''forum software'' have to do with this kind of issues ?

    BTW, I found myself locked out yesterday, and had to reclaim my login via the ''forgot password'' route. How many breakdowns/meltdowns we need to go through before ST decides to go for something real ?

    SoHaeng.Lee
    SoHaeng.LeeAuthor
    Associate III
    February 4, 2016
    Posted on February 04, 2016 at 08:56

    Sorry, Syrine.

    Perfectely, my mistake.

    SoHaeng.Lee
    SoHaeng.LeeAuthor
    Associate III
    February 4, 2016
    Posted on February 04, 2016 at 09:02

    Thanks AvaTar.

    Today, i found my miss code.

    The miss is USART3_IRQHandler() in stm32f4xx_it.c.

    I just add this code. 

    void

    USART3_IRQHandler(

    void

    )

    {

     

    /* USER CODE BEGIN USART3_IRQn 0 */

     

    /* USER CODE END USART3_IRQn 0 */

     

    HAL_UART_IRQHandler

    (&huart3);

     

    /* USER CODE BEGIN USART3_IRQn 1 */

     

    /* USER CODE END USART3_IRQn 1 */

    }

    and my code is running very well.

    Thanks your advice.

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