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C++ USARTx_TX_GPIO_CLK_ENABLE函数代码示例

本文整理汇总了C++中USARTx_TX_GPIO_CLK_ENABLE函数的典型用法代码示例。如果您正苦于以下问题：C++ USARTx_TX_GPIO_CLK_ENABLE函数的具体用法？C++ USARTx_TX_GPIO_CLK_ENABLE怎么用？C++ USARTx_TX_GPIO_CLK_ENABLE使用的例子？那么, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了USARTx_TX_GPIO_CLK_ENABLE函数的12个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: HAL_UART_MspInit

/**
  * @brief UART MSP Initialization 
  *        This function configures the hardware resources used in this example: 
  *           - Peripheral's clock enable
  *           - Peripheral's GPIO Configuration  
  * @param huart: UART handle pointer
  * @retval None
  */
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{  
  GPIO_InitTypeDef  GPIO_InitStruct;
  
  /*##-1- Enable peripherals and GPIO Clocks #################################*/
  /* Enable GPIO TX/RX clock */
  USARTx_TX_GPIO_CLK_ENABLE();
  USARTx_RX_GPIO_CLK_ENABLE();
  
  /* Enable USARTx clock */
  USARTx_CLK_ENABLE(); 
  
  /*##-2- Configure peripheral GPIO ##########################################*/  
  /* UART TX GPIO pin configuration  */
  GPIO_InitStruct.Pin       = USARTx_TX_PIN;
  GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull      = GPIO_PULLUP;
  GPIO_InitStruct.Speed     = GPIO_SPEED_FAST;
  GPIO_InitStruct.Alternate = USARTx_TX_AF;
  
  HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
    
  /* UART RX GPIO pin configuration  */
  GPIO_InitStruct.Pin = USARTx_RX_PIN;
  GPIO_InitStruct.Alternate = USARTx_RX_AF;
    
  HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
}
开发者ID:Lembed，项目名称:STM32CubeF4-mirrors，代码行数:36，代码来源:stm32f4xx_hal_msp.c

示例2: prvHardwareUartGpioInit

void prvHardwareUartGpioInit(UART_HandleTypeDef *huart)
{  
    GPIO_InitTypeDef  GPIO_InitStruct;

    /* Enable GPIO TX/RX clock */
    USARTx_TX_GPIO_CLK_ENABLE();
    USARTx_RX_GPIO_CLK_ENABLE();

    /* Enable USARTx clock */
    USARTx_CLK_ENABLE(); 

    /* UART TX GPIO pin configuration  */
    GPIO_InitStruct.Pin       = USARTx_TX_PIN;
    GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull      = GPIO_PULLUP;
    GPIO_InitStruct.Speed     = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = USARTx_TX_AF;

    HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);

    /* UART RX GPIO pin configuration  */
    GPIO_InitStruct.Pin       = USARTx_RX_PIN;
    GPIO_InitStruct.Alternate = USARTx_RX_AF;

    HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
}
开发者ID:otwieracz，项目名称:stm32-freertos，代码行数:26，代码来源:uart.c

示例3: HAL_UART_MspInit

/**
  * @brief UART MSP Initialization
  *        This function configures the hardware resources used in this example:
  *           - Peripheral's clock enable
  *           - Peripheral's GPIO Configuration
  * @param huart: UART handle pointer
  * @retval None
  */
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
  GPIO_InitTypeDef  GPIO_InitStruct;

  RCC_PeriphCLKInitTypeDef RCC_PeriphClkInit;

  /*##-1- Enable peripherals and GPIO Clocks #################################*/
  /* Enable GPIO TX/RX clock */
  USARTx_TX_GPIO_CLK_ENABLE();
  USARTx_RX_GPIO_CLK_ENABLE();

  /* Select SysClk as source of USART1 clocks */
  RCC_PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
  RCC_PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_SYSCLK;
  HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphClkInit);

  /* Enable USARTx clock */
  USARTx_CLK_ENABLE();

  /*##-2- Configure peripheral GPIO ##########################################*/
  /* UART TX GPIO pin configuration  */
  GPIO_InitStruct.Pin       = USARTx_TX_PIN;
  GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull      = GPIO_PULLUP;
  GPIO_InitStruct.Speed     = GPIO_SPEED_HIGH;
  GPIO_InitStruct.Alternate = USARTx_TX_AF;

  HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);

  /* UART RX GPIO pin configuration  */
  GPIO_InitStruct.Pin = USARTx_RX_PIN;
  GPIO_InitStruct.Alternate = USARTx_RX_AF;

  HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
}
开发者ID:MrZANE42，项目名称:verisure1512，代码行数:43，代码来源:stm32f7xx_hal_msp.c

示例4: HAL_UART_MspInit

/**
  * @brief UART MSP Initialization
  *        This function configures the hardware resources used in this example:
  *           - Peripheral's clock enable
  *           - Peripheral's GPIO Configuration
  * @param huart: UART handle pointer
  * @retval None
  */
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
  GPIO_InitTypeDef  GPIO_InitStruct;
  /*##-1- Enable peripherals and GPIO Clocks #################################*/
  /* Enable GPIO TX/RX clock */
  USARTx_TX_GPIO_CLK_ENABLE();
  USARTx_RX_GPIO_CLK_ENABLE();
  /* Enable USARTx clock */
  USARTx_CLK_ENABLE();

  /*##-2- Configure peripheral GPIO ##########################################*/
  /* UART TX GPIO pin configuration  */
  GPIO_InitStruct.Pin       = USARTx_TX_PIN;
  GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull      = GPIO_PULLUP;
  GPIO_InitStruct.Speed     = GPIO_SPEED_HIGH;
  HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);

  /* UART RX GPIO pin configuration  */
  GPIO_InitStruct.Pin = USARTx_RX_PIN;
  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
  HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
	
	HAL_NVIC_SetPriority(USARTx_IRQn, 0, 1);
  HAL_NVIC_EnableIRQ(USARTx_IRQn);
}
开发者ID:ydwzj，项目名称:STM32F1，代码行数:34，代码来源:stm32f1xx_hal_msp.c

示例5: USARTx_TX_GPIO_CLK_ENABLE

uart::uart ( void)
{
    huart.Instance          = USARTx;
    huart.Init.BaudRate     = 115200;
    huart.Init.WordLength   = UART_WORDLENGTH_8B;
    huart.Init.StopBits     = UART_STOPBITS_1;
    huart.Init.Parity       = UART_PARITY_NONE;
    huart.Init.HwFlowCtl    = UART_HWCONTROL_NONE;
    huart.Init.Mode         = UART_MODE_TX_RX;
    huart.Init.OverSampling = UART_OVERSAMPLING_16;

    GPIO_InitTypeDef  GPIO_InitStruct;

    /*##-1- Enable peripherals and GPIO Clocks #################################*/
    /* Enable GPIO TX/RX clock */
    USARTx_TX_GPIO_CLK_ENABLE();
    USARTx_RX_GPIO_CLK_ENABLE();
    /* Enable USART1 clock */
    USARTx_CLK_ENABLE();

    /*##-2- Configure peripheral GPIO ##########################################*/
    /* UART TX GPIO pin configuration  */
    GPIO_InitStruct.Pin       = USARTx_TX_PIN;
    GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull      = GPIO_PULLUP;
    GPIO_InitStruct.Speed     = GPIO_SPEED_FAST;
    GPIO_InitStruct.Alternate = USARTx_TX_AF;

    HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);

    /* UART RX GPIO pin configuration  */
    GPIO_InitStruct.Pin = USARTx_RX_PIN;
    GPIO_InitStruct.Alternate = USARTx_RX_AF;

    HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);

    /*##-3- Configure the NVIC for UART ########################################*/
    /* NVIC for USARTx */
    HAL_NVIC_SetPriority(USARTx_IRQn, 0, 1);
    HAL_NVIC_EnableIRQ(USARTx_IRQn);
    if( HAL_UART_Init( &huart) != HAL_OK)
      asm("bkpt 0");

    HAL_StatusTypeDef status;
    status=HAL_UART_Receive_IT( &huart, (uint8_t *)0x01, 1); // dummy call to switch RX on
    if( status != HAL_OK)
        asm("bkpt 0");
}
开发者ID:Alexander-Wilms，项目名称:STM3240G-EVAL，代码行数:48，代码来源:uart.cpp

示例6: USARTConfig

/**
 * @brief  Configure the USART
 * @param  None
 * @retval None
 */
void USARTConfig()
{
	/* Enable peripherals and GPIO Clocks */

	/* Enable GPIO TX/RX clock */
	USARTx_TX_GPIO_CLK_ENABLE();
	USARTx_RX_GPIO_CLK_ENABLE();
	/* Enable USART2 clock */
	USARTx_CLK_ENABLE();

	/*Configure peripheral GPIO */
	UartGpioConfig();


	/* Put the USART peripheral in the Asynchronous mode (UART Mode) */
	/* UART1 configured as follow:
	      - Word Length = 8 Bits
	      - Stop Bit = One Stop bit
	      - Parity = None
	      - BaudRate = 'Usart_BaudRate' baud
	      - Hardware flow control disabled (RTS and CTS signals) */
	UartHandle.Instance        = USARTx;
	UartHandle.Init.BaudRate   = USART_BAUD_RATE;
	UartHandle.Init.WordLength = UART_WORDLENGTH_8B;
	UartHandle.Init.StopBits   = UART_STOPBITS_1;
	UartHandle.Init.Parity     = UART_PARITY_NONE;
	UartHandle.Init.HwFlowCtl  = UART_HWCONTROL_NONE;
	UartHandle.Init.Mode       = UART_MODE_TX_RX;

	if ( HAL_UART_Init( &UartHandle ) != HAL_OK )
	{
		while(1);
	}

	UartHandle.pRxBuffPtr = (uint8_t *)UART_RxBuffer;
	UartHandle.RxXferSize = UART_BufferSize;
	UartHandle.ErrorCode  = HAL_UART_ERROR_NONE;
}
开发者ID:glanglois，项目名称:FW_Test_LXGroup，代码行数:43，代码来源:UartComManager.c

示例7: HAL_UART_MspInit

void HAL_UART_MspInit(UART_HandleTypeDef *huart) {
    (void)huart;

    USARTx_TX_GPIO_CLK_ENABLE();
    USARTx_RX_GPIO_CLK_ENABLE();
    USARTx_CLK_ENABLE();

    GPIO_InitTypeDef gpio_init = {
        .Pin       = USARTx_TX_PIN,
        .Mode      = GPIO_MODE_AF_PP,
        .Pull      = GPIO_PULLUP,
        .Speed     = GPIO_SPEED_FAST,
        .Alternate = USARTx_TX_AF,
    };
    HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &gpio_init);
    gpio_init.Pin       = USARTx_RX_PIN;
    gpio_init.Alternate = USARTx_RX_AF;
    HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &gpio_init);

    // Insert rx / tx DMA here

    HAL_NVIC_SetPriority(USARTx_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(USARTx_IRQn);
}
开发者ID:AAU-Racing，项目名称:demo_board，代码行数:24，代码来源:uart.c

示例8: HAL_UART_MspInit

/**
  * @brief UART MSP Initialization 
  *        This function configures the hardware resources used in this example: 
  *           - Peripheral's clock enable
  *           - Peripheral's GPIO Configuration  
  *           - DMA configuration for transmission request by peripheral 
  *           - NVIC configuration for DMA interrupt request enable
  * @param huart: UART handle pointer
  * @retval None
  */
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
  static DMA_HandleTypeDef hdma_tx;
  static DMA_HandleTypeDef hdma_rx;
  
  GPIO_InitTypeDef  GPIO_InitStruct;
  
  /*##-1- Enable peripherals and GPIO Clocks #################################*/
  /* Enable GPIO TX/RX clock */
  USARTx_TX_GPIO_CLK_ENABLE();
  USARTx_RX_GPIO_CLK_ENABLE();


  /* Enable USARTx clock */
  USARTx_CLK_ENABLE();

  /* Enable DMA clock */
  DMAx_CLK_ENABLE();
  
  /*##-2- Configure peripheral GPIO ##########################################*/  
  /* UART TX GPIO pin configuration  */
  GPIO_InitStruct.Pin       = USARTx_TX_PIN;
  GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull      = GPIO_PULLUP;
  GPIO_InitStruct.Speed     = GPIO_SPEED_FREQ_HIGH;
  GPIO_InitStruct.Alternate = USARTx_TX_AF;

  HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);

  /* UART RX GPIO pin configuration  */
  GPIO_InitStruct.Pin = USARTx_RX_PIN;
  GPIO_InitStruct.Alternate = USARTx_RX_AF;

  HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);

  /*##-3- Configure the DMA ##################################################*/
  /* Configure the DMA handler for Transmission process */
  hdma_tx.Instance                 = USARTx_TX_DMA_CHANNEL;
  hdma_tx.Init.Direction           = DMA_MEMORY_TO_PERIPH;
  hdma_tx.Init.PeriphInc           = DMA_PINC_DISABLE;
  hdma_tx.Init.MemInc              = DMA_MINC_ENABLE;
  hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  hdma_tx.Init.MemDataAlignment    = DMA_MDATAALIGN_BYTE;
  hdma_tx.Init.Mode                = DMA_NORMAL;
  hdma_tx.Init.Priority            = DMA_PRIORITY_LOW;
  hdma_tx.Init.Request             = USARTx_TX_DMA_REQUEST;

  HAL_DMA_Init(&hdma_tx);

  /* Associate the initialized DMA handle to the UART handle */
  __HAL_LINKDMA(huart, hdmatx, hdma_tx);

  /* Configure the DMA handler for reception process */
  hdma_rx.Instance                 = USARTx_RX_DMA_CHANNEL;
  hdma_rx.Init.Direction           = DMA_PERIPH_TO_MEMORY;
  hdma_rx.Init.PeriphInc           = DMA_PINC_DISABLE;
  hdma_rx.Init.MemInc              = DMA_MINC_ENABLE;
  hdma_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  hdma_rx.Init.MemDataAlignment    = DMA_MDATAALIGN_BYTE;
  hdma_rx.Init.Mode                = DMA_NORMAL;
  hdma_rx.Init.Priority            = DMA_PRIORITY_HIGH;
  hdma_rx.Init.Request             = USARTx_RX_DMA_REQUEST;

  HAL_DMA_Init(&hdma_rx);

  /* Associate the initialized DMA handle to the the UART handle */
  __HAL_LINKDMA(huart, hdmarx, hdma_rx);
    
  /*##-4- Configure the NVIC for DMA #########################################*/
  /* NVIC configuration for DMA transfer complete interrupt (USART2_TX) */
  HAL_NVIC_SetPriority(USARTx_DMA_TX_IRQn, 0, 1);
  HAL_NVIC_EnableIRQ(USARTx_DMA_TX_IRQn);
    
  /* NVIC configuration for DMA transfer complete interrupt (USART2_RX) */
  HAL_NVIC_SetPriority(USARTx_DMA_RX_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(USARTx_DMA_RX_IRQn);
  
  /* NVIC for USART, to catch the TX complete */
  HAL_NVIC_SetPriority(USARTx_IRQn, 0, 1);
  HAL_NVIC_EnableIRQ(USARTx_IRQn);
}
开发者ID:pengphei，项目名称:STM32Cube_L0，代码行数:91，代码来源:stm32l0xx_hal_msp.c

示例9: HAL_UART_MspInit

/**
  * @brief UART MSP Initialization 
  *        This function configures the hardware resources used in this example: 
  *           - Peripheral's clock enable
  *           - Peripheral's GPIO Configuration  
  *           - NVIC configuration for UART interrupt request enable
  * @param huart: UART handle pointer
  * @retval None
  */
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
  static DMA_HandleTypeDef hdma_tx;
  GPIO_InitTypeDef  GPIO_InitStruct;
  
  /*##-1- Enable peripherals and GPIO Clocks #################################*/
  /* Enable GPIO clock */
  USARTx_TX_GPIO_CLK_ENABLE();
  USARTx_RX_GPIO_CLK_ENABLE();
  
  /* Remap AFIO if needed */
  AFIOCOMx_CLK_ENABLE(0);
  AFIOCOMx_REMAP(0);
  
  /* Enable USARTx clock */
  USARTx_CLK_ENABLE();
   
  /*##-2- Configure peripheral GPIO ##########################################*/  
  /* UART TX GPIO pin configuration  */
  GPIO_InitStruct.Pin       = USARTx_TX_PIN;
  GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull      = GPIO_PULLUP;
  GPIO_InitStruct.Speed     = GPIO_SPEED_FREQ_HIGH;
  HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
  
  /* UART RX GPIO pin configuration  */
  GPIO_InitStruct.Pin = USARTx_RX_PIN;
  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
  HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
  
  /*##-3- Configure the NVIC for UART ########################################*/   
  HAL_NVIC_SetPriority(USARTx_IRQn, 5, 0);
  HAL_NVIC_EnableIRQ(USARTx_IRQn);
  
  /* Enable DMAx clock */
  DMAx_CLK_ENABLE();
  
  /*##-4- Configure the DMA streams ##########################################*/
  /* Configure the DMA handler for Transmission process */
  hdma_tx.Instance                 = USARTx_TX_DMA_STREAM;
  hdma_tx.Init.Direction           = DMA_MEMORY_TO_PERIPH;
  hdma_tx.Init.PeriphInc           = DMA_PINC_DISABLE;
  hdma_tx.Init.MemInc              = DMA_MINC_ENABLE;
  hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  hdma_tx.Init.MemDataAlignment    = DMA_MDATAALIGN_BYTE;
  hdma_tx.Init.Mode                = DMA_NORMAL;
  hdma_tx.Init.Priority            = DMA_PRIORITY_LOW;
  
  HAL_DMA_Init(&hdma_tx);   
  
  /* Associate the initialized DMA handle to the UART handle */
  __HAL_LINKDMA(huart, hdmatx, hdma_tx);
  
  /*##-5- Configure the NVIC for DMA #########################################*/   
  /* NVIC configuration for DMA transfer complete interrupt (USARTx_TX) */
  HAL_NVIC_SetPriority(USARTx_DMA_TX_IRQn, 6, 0);
  HAL_NVIC_EnableIRQ(USARTx_DMA_TX_IRQn);
  
  /*##-6- Enable TIM peripherals Clock #######################################*/
  TIMx_CLK_ENABLE();
  
  /*##-7- Configure the NVIC for TIMx ########################################*/
  /* Set Interrupt Group Priority */ 
  HAL_NVIC_SetPriority(TIMx_IRQn, 6, 0);
  
  /* Enable the TIMx global Interrupt */
  HAL_NVIC_EnableIRQ(TIMx_IRQn);
}
开发者ID:Lembed，项目名称:STM32CubeF1-mirrors，代码行数:77，代码来源:stm32f1xx_hal_msp.c

示例10: HAL_UART_MspInit

/**
  * @brief UART MSP Initialization
  *        This function configures the hardware resources used in this example:
  *           - Peripheral's clock enable
  *           - Peripheral's GPIO Configuration
  *           - DMA configuration for transmission request by peripheral
  *           - NVIC configuration for DMA interrupt request enable
  * @param huart: UART handle pointer
  * @retval None
  */
void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
  static DMA_HandleTypeDef hdma_tx;
  static DMA_HandleTypeDef hdma_rx;

  RCC_PeriphCLKInitTypeDef RCC_PeriphClkInit;

  GPIO_InitTypeDef  GPIO_InitStruct;

  /*##-1- Enable peripherals and GPIO Clocks #################################*/
  /* Enable GPIO clock */
  USARTx_TX_GPIO_CLK_ENABLE();
  USARTx_RX_GPIO_CLK_ENABLE();

  /* Select SysClk as source of USART1 clocks */
  RCC_PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
  RCC_PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_SYSCLK;
  HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphClkInit);

  /* Enable USARTx clock */
  USARTx_CLK_ENABLE();

  /* Enable DMA clock */
  DMAx_CLK_ENABLE();

  /*##-2- Configure peripheral GPIO ##########################################*/
  /* UART TX GPIO pin configuration  */
  GPIO_InitStruct.Pin       = USARTx_TX_PIN;
  GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull      = GPIO_PULLUP;
  
  GPIO_InitStruct.Speed     = GPIO_SPEED_FAST;
  
  GPIO_InitStruct.Alternate = USARTx_TX_AF;

  HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);

  /* UART RX GPIO pin configuration  */
  GPIO_InitStruct.Pin = USARTx_RX_PIN;
  GPIO_InitStruct.Alternate = USARTx_RX_AF;

  HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);

  /*##-3- Configure the DMA ##################################################*/
  /* Configure the DMA handler for Transmission process */
  hdma_tx.Instance                 = USARTx_TX_DMA_STREAM;

  hdma_tx.Init.Channel             = USARTx_TX_DMA_CHANNEL;
  hdma_tx.Init.Direction           = DMA_MEMORY_TO_PERIPH;
  hdma_tx.Init.PeriphInc           = DMA_PINC_DISABLE;
  hdma_tx.Init.MemInc              = DMA_MINC_ENABLE;
  hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  hdma_tx.Init.MemDataAlignment    = DMA_MDATAALIGN_BYTE;
  hdma_tx.Init.Mode                = DMA_NORMAL;
  hdma_tx.Init.Priority            = DMA_PRIORITY_LOW;
  hdma_tx.Init.FIFOMode            = DMA_FIFOMODE_DISABLE;
  hdma_tx.Init.FIFOThreshold       = DMA_FIFO_THRESHOLD_FULL;
  hdma_tx.Init.MemBurst            = DMA_MBURST_INC4;
  hdma_tx.Init.PeriphBurst         = DMA_PBURST_INC4;

  HAL_DMA_Init(&hdma_tx);

  /* Associate the initialized DMA handle to the UART handle */
  __HAL_LINKDMA(huart, hdmatx, hdma_tx);

  /* Configure the DMA handler for reception process */
  hdma_rx.Instance                 = USARTx_RX_DMA_STREAM;

  hdma_rx.Init.Channel             = USARTx_RX_DMA_CHANNEL;
  hdma_rx.Init.Direction           = DMA_PERIPH_TO_MEMORY;
  hdma_rx.Init.PeriphInc           = DMA_PINC_DISABLE;
  hdma_rx.Init.MemInc              = DMA_MINC_ENABLE;
  hdma_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  hdma_rx.Init.MemDataAlignment    = DMA_MDATAALIGN_BYTE;
  hdma_rx.Init.Mode                = DMA_NORMAL;
  hdma_rx.Init.Priority            = DMA_PRIORITY_HIGH;
  hdma_rx.Init.FIFOMode            = DMA_FIFOMODE_DISABLE;
  hdma_rx.Init.FIFOThreshold       = DMA_FIFO_THRESHOLD_FULL;
  hdma_rx.Init.MemBurst            = DMA_MBURST_INC4;
  hdma_rx.Init.PeriphBurst         = DMA_PBURST_INC4;

  HAL_DMA_Init(&hdma_rx);

  /* Associate the initialized DMA handle to the the UART handle */
  __HAL_LINKDMA(huart, hdmarx, hdma_rx);

  /*##-4- Configure the NVIC for DMA #########################################*/
  /* NVIC configuration for DMA transfer complete interrupt (USARTx_TX) */
  HAL_NVIC_SetPriority(USARTx_DMA_TX_IRQn, 0, 1);
  HAL_NVIC_EnableIRQ(USARTx_DMA_TX_IRQn);
//.........这里部分代码省略.........
开发者ID:vlsi1217，项目名称:STM32F7Cube，代码行数:101，代码来源:stm32f7xx_hal_msp.c

示例11: USARTConfig

/**
 * @brief  Configure the USART
 * @retval None
 */
void USARTConfig(void)
{
  GPIO_InitTypeDef GPIO_InitStruct;
  
  /*##-1- Enable peripherals and GPIO Clocks #################################*/
  /* Enable GPIO TX/RX clock */
  USARTx_TX_GPIO_CLK_ENABLE();
  USARTx_RX_GPIO_CLK_ENABLE();
  /* Enable USART2 clock */
  USARTx_CLK_ENABLE();
  /* Enable DMA1 clock */
  DMAx_CLK_ENABLE();
  
  /*##-2- Configure peripheral GPIO ##########################################*/
  /* UART TX GPIO pin configuration  */
  GPIO_InitStruct.Pin       = USARTx_TX_PIN;
  GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull      = GPIO_NOPULL;
#if ((defined (USE_STM32F4XX_NUCLEO)) || (defined (USE_STM32L0XX_NUCLEO)))
  GPIO_InitStruct.Speed     = GPIO_SPEED_FAST;
#endif
  
#if (defined (USE_STM32L1XX_NUCLEO))
  GPIO_InitStruct.Speed     = GPIO_SPEED_MEDIUM;
#endif
  GPIO_InitStruct.Alternate = USARTx_TX_AF;
  
  HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
  
  /* UART RX GPIO pin configuration  */
  GPIO_InitStruct.Pin = USARTx_RX_PIN;
  GPIO_InitStruct.Alternate = USARTx_RX_AF;
  
  HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
  
  
  /*##-1- Configure the UART peripheral ######################################*/
  /* Put the USART peripheral in the Asynchronous mode (UART Mode) */
  UartHandle.Instance        = USARTx;
  UartHandle.Init.BaudRate   = Usart_BaudRate;
  UartHandle.Init.WordLength = UART_WORDLENGTH_8B;
  UartHandle.Init.StopBits   = UART_STOPBITS_1;
  UartHandle.Init.Parity     = UART_PARITY_NONE;
  UartHandle.Init.HwFlowCtl  = UART_HWCONTROL_NONE;
  UartHandle.Init.Mode       = UART_MODE_TX_RX;
  
  if(HAL_UART_Init(&UartHandle) != HAL_OK)
  {
    //          Error_Handler();
    while(1);
  }
  
  USART_DMA_Configuration();
  
  UartHandle.pRxBuffPtr = (uint8_t*)UART_RxBuffer;
  UartHandle.RxXferSize = UART_RxBufferSize;
  UartHandle.ErrorCode = HAL_UART_ERROR_NONE;
  
  /* Enable the DMA transfer for the receiver request by setting the DMAR bit
  in the UART CR3 register */
  HAL_UART_Receive_DMA(&UartHandle, (uint8_t*)UART_RxBuffer, UART_RxBufferSize);
}
开发者ID:heidiao，项目名称:stm32_nucleo，代码行数:66，代码来源:com.c

示例12: HAL_UART_MspInit

void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{  
  GPIO_InitTypeDef  GPIO_InitStruct;
	if( huart == &UartHandle ){
		/*##-1- Enable peripherals and GPIO Clocks #################################*/
		DMAx_CLK_ENABLE();
		/* Enable GPIO TX/RX clock */
		USARTx_TX_GPIO_CLK_ENABLE();
		USARTx_RX_GPIO_CLK_ENABLE();
		/* Enable USART2 clock */
		USARTx_CLK_ENABLE(); 
		/* Enable DMA1 clock */
	
		/*##-2- Configure peripheral GPIO ##########################################*/  
		/* UART TX GPIO pin configuration  */
		GPIO_InitStruct.Pin       = USARTx_TX_PIN;
		GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
		GPIO_InitStruct.Pull      = GPIO_NOPULL;
		GPIO_InitStruct.Speed     = GPIO_SPEED_FAST;
		GPIO_InitStruct.Alternate = USARTx_TX_AF;
		
		HAL_GPIO_Init(USARTx_TX_GPIO_PORT, &GPIO_InitStruct);
			
		/* UART RX GPIO pin configuration  */
		GPIO_InitStruct.Pin = USARTx_RX_PIN;
		GPIO_InitStruct.Alternate = USARTx_RX_AF;
			
		HAL_GPIO_Init(USARTx_RX_GPIO_PORT, &GPIO_InitStruct);
			
		/*##-3- Configure the DMA streams ##########################################*/
		/* Configure the DMA handler for Transmission process */
		hdma_tx.Instance                 = USARTx_TX_DMA_STREAM;
		
		hdma_tx.Init.Channel             = USARTx_TX_DMA_CHANNEL;
		hdma_tx.Init.Direction           = DMA_MEMORY_TO_PERIPH;
		hdma_tx.Init.PeriphInc           = DMA_PINC_DISABLE;
		hdma_tx.Init.MemInc              = DMA_MINC_ENABLE;
		hdma_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
		hdma_tx.Init.MemDataAlignment    = DMA_MDATAALIGN_BYTE;
		hdma_tx.Init.Mode                = DMA_NORMAL;
		hdma_tx.Init.Priority            = DMA_PRIORITY_LOW;
		hdma_tx.Init.FIFOMode            = DMA_FIFOMODE_DISABLE;
		hdma_tx.Init.FIFOThreshold       = DMA_FIFO_THRESHOLD_FULL;
		hdma_tx.Init.MemBurst            = DMA_MBURST_INC4;
		hdma_tx.Init.PeriphBurst         = DMA_PBURST_INC4;
		
		HAL_DMA_Init(&hdma_tx);   
		
		/* Associate the initialized DMA handle to the the UART handle */
		__HAL_LINKDMA(huart, hdmatx, hdma_tx);
			
		/* Configure the DMA handler for Transmission process */
		hdma_rx.Instance                 = USARTx_RX_DMA_STREAM;
		
		hdma_rx.Init.Channel             = USARTx_RX_DMA_CHANNEL;
		hdma_rx.Init.Direction           = DMA_PERIPH_TO_MEMORY;
		hdma_rx.Init.PeriphInc           = DMA_PINC_DISABLE;
		hdma_rx.Init.MemInc              = DMA_MINC_ENABLE;
		hdma_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
		hdma_rx.Init.MemDataAlignment    = DMA_MDATAALIGN_BYTE;
		hdma_rx.Init.Mode                = DMA_CIRCULAR;
		hdma_rx.Init.Priority            = DMA_PRIORITY_HIGH;
		hdma_rx.Init.FIFOMode            = DMA_FIFOMODE_DISABLE;         
		hdma_rx.Init.FIFOThreshold       = DMA_FIFO_THRESHOLD_FULL;
		hdma_rx.Init.MemBurst            = DMA_MBURST_INC4;
		hdma_rx.Init.PeriphBurst         = DMA_PBURST_INC4;

		HAL_DMA_Init(&hdma_rx);
			
		/* Associate the initialized DMA handle to the the UART handle */
		__HAL_LINKDMA(huart, hdmarx, hdma_rx);
			
		/*##-4- Configure the NVIC for DMA #########################################*/
		/* NVIC configuration for DMA transfer complete interrupt (USARTx_TX) */
		HAL_NVIC_SetPriority(USARTx_DMA_TX_IRQn, 5, 3);
		HAL_NVIC_EnableIRQ(USARTx_DMA_TX_IRQn);
			
		/* NVIC configuration for DMA transfer complete interrupt (USARTx_RX) */
		//HAL_NVIC_SetPriority(USARTx_DMA_RX_IRQn, 5, 2);   
		//HAL_NVIC_EnableIRQ(USARTx_DMA_RX_IRQn);
		
		/* NVIC configuration for USART TC interrupt */
		HAL_NVIC_SetPriority(USARTx_IRQn, 6, 1);
		HAL_NVIC_EnableIRQ(USARTx_IRQn);
	}
}
开发者ID:ydwzj，项目名称:STM32F4，代码行数:86，代码来源:stm32f4xx_hal_msp.c


注：本文中的USARTx_TX_GPIO_CLK_ENABLE函数示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。