C++ HAL_NVIC_SetPriority函数代码示例

/**
  * @brief SPI 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 hspi: SPI handle pointer
  * @retval None
  */
void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi)
{
GPIO_InitTypeDef  GPIO_InitStruct;
	
  if (hspi->Instance == SPIx)
  {
    /*##-1- Enable peripherals and GPIO Clocks #################################*/
    /* Enable GPIO TX/RX clock */
    SPIx_SCK_GPIO_CLK_ENABLE();
    SPIx_MISO_GPIO_CLK_ENABLE();
    SPIx_MOSI_GPIO_CLK_ENABLE();
    /* Enable SPI2 clock */
    SPIx_CLK_ENABLE();
    /* Enable DMA clock */
    DMAx_CLK_ENABLE();

    /*##-2- Configure peripheral GPIO ##########################################*/  
    /* SPI SCK GPIO pin configuration  */
    GPIO_InitStruct.Pin       = SPIx_SCK_PIN;
    GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull      = GPIO_PULLDOWN;
    GPIO_InitStruct.Speed     = GPIO_SPEED_FREQ_LOW;
    HAL_GPIO_Init(SPIx_SCK_GPIO_PORT, &GPIO_InitStruct);

    /* SPI MISO GPIO pin configuration  */
    GPIO_InitStruct.Pin = SPIx_MISO_PIN;
    HAL_GPIO_Init(SPIx_MISO_GPIO_PORT, &GPIO_InitStruct);

    /* SPI MOSI GPIO pin configuration  */
    GPIO_InitStruct.Pin = SPIx_MOSI_PIN;
    HAL_GPIO_Init(SPIx_MOSI_GPIO_PORT, &GPIO_InitStruct);

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

    HAL_DMA_Init(&hdma_tx);

    /* Associate the initialized DMA handle to the the SPI handle */
    __HAL_LINKDMA(hspi, hdmatx, hdma_tx);

    /* Configure the DMA handler for Transmission process */
    hdma_rx.Instance                 = SPIx_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;

    HAL_DMA_Init(&hdma_rx);

    /* Associate the initialized DMA handle to the the SPI handle */
    __HAL_LINKDMA(hspi, hdmarx, hdma_rx);
    
    /*##-4- Configure the NVIC for DMA #########################################*/ 
    /* NVIC configuration for DMA transfer complete interrupt (SPI2_TX) */
    HAL_NVIC_SetPriority(SPIx_DMA_TX_IRQn, 1, 1);
    HAL_NVIC_EnableIRQ(SPIx_DMA_TX_IRQn);
    
    /* NVIC configuration for DMA transfer complete interrupt (SPI2_RX) */
    HAL_NVIC_SetPriority(SPIx_DMA_RX_IRQn, 1, 0);
    HAL_NVIC_EnableIRQ(SPIx_DMA_RX_IRQn);
  }
}

void pendsv_init(void) {
    // set PendSV interrupt at lowest priority
    HAL_NVIC_SetPriority(PendSV_IRQn, 0xf, 0xf);
}

/**
  * @brief SPI 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 hspi: SPI handle pointer
  * @retval None
  */
void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi)
{
  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 */
  SPIx_SCK_GPIO_CLK_ENABLE();
  SPIx_MISO_GPIO_CLK_ENABLE();
  SPIx_MOSI_GPIO_CLK_ENABLE();
  /* Enable SPI3 clock */
  SPIx_CLK_ENABLE(); 
  /* Enable DMA1 clock */
  DMAx_CLK_ENABLE();   
  
  /*##-2- Configure peripheral GPIO ##########################################*/  
  /* SPI SCK GPIO pin configuration  */
  GPIO_InitStruct.Pin       = SPIx_SCK_PIN;
  GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull      = GPIO_PULLUP;
  GPIO_InitStruct.Speed     = GPIO_SPEED_FAST;
  GPIO_InitStruct.Alternate = SPIx_SCK_AF;
  
  HAL_GPIO_Init(SPIx_SCK_GPIO_PORT, &GPIO_InitStruct);
    
  /* SPI MISO GPIO pin configuration  */
  GPIO_InitStruct.Pin = SPIx_MISO_PIN;
  GPIO_InitStruct.Alternate = SPIx_MISO_AF;
  
  HAL_GPIO_Init(SPIx_MISO_GPIO_PORT, &GPIO_InitStruct);
  
  /* SPI MOSI GPIO pin configuration  */
  GPIO_InitStruct.Pin = SPIx_MOSI_PIN;
  GPIO_InitStruct.Alternate = SPIx_MOSI_AF;
    
  HAL_GPIO_Init(SPIx_MOSI_GPIO_PORT, &GPIO_InitStruct);
    
  /*##-3- Configure the DMA streams ##########################################*/
  /* Configure the DMA handler for Transmission process */
  hdma_tx.Instance                 = SPIx_TX_DMA_STREAM;
  
  hdma_tx.Init.Channel             = SPIx_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 SPI handle */
  __HAL_LINKDMA(hspi, hdmatx, hdma_tx);
    
  /* Configure the DMA handler for Transmission process */
  hdma_rx.Instance                 = SPIx_RX_DMA_STREAM;
  
  hdma_rx.Init.Channel             = SPIx_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 SPI handle */
  __HAL_LINKDMA(hspi, hdmarx, hdma_rx);
    
  /*##-4- Configure the NVIC for DMA #########################################*/ 
  /* NVIC configuration for DMA transfer complete interrupt (SPI3_TX) */
  HAL_NVIC_SetPriority(SPIx_DMA_TX_IRQn, 0, 1);
  HAL_NVIC_EnableIRQ(SPIx_DMA_TX_IRQn);
    
  /* NVIC configuration for DMA transfer complete interrupt (SPI3_RX) */
  HAL_NVIC_SetPriority(SPIx_DMA_RX_IRQn, 0, 0);   
  HAL_NVIC_EnableIRQ(SPIx_DMA_RX_IRQn);
//.........这里部分代码省略.........

/**
  * @brief  Initializes I2C MSP.
  * @param  None
  * @retval None
  */
static void I2Sx_MspInit(void)
{ 
  static DMA_HandleTypeDef hdma_i2sTx;
  GPIO_InitTypeDef  GPIO_InitStruct;  
  I2S_HandleTypeDef *hi2s = &haudio_i2s;
  
  /* Enable I2S clock */
  AUDIO_I2Sx_CLK_ENABLE();
  
  /* Enable SCK, SD and WS GPIO clock */
  AUDIO_I2Sx_SCK_SD_WS_CLK_ENABLE();
  
  /* CODEC_I2S pins configuration: WS, SCK and SD pins */
  GPIO_InitStruct.Pin = AUDIO_I2Sx_SCK_PIN;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
  GPIO_InitStruct.Alternate = AUDIO_I2Sx_SCK_SD_WS_AF;
  HAL_GPIO_Init(AUDIO_I2Sx_SCK_SD_WS_GPIO_PORT, &GPIO_InitStruct);
  
  GPIO_InitStruct.Pin = AUDIO_I2Sx_SD_PIN;
  HAL_GPIO_Init(AUDIO_I2Sx_SCK_SD_WS_GPIO_PORT, &GPIO_InitStruct); 
  
  GPIO_InitStruct.Pin = AUDIO_I2Sx_WS_PIN;
  HAL_GPIO_Init(AUDIO_I2Sx_SCK_SD_WS_GPIO_PORT, &GPIO_InitStruct); 
  
  /* Enable MCK GPIO clock */
  AUDIO_I2Sx_MCK_CLK_ENABLE();
  
  /* CODEC_I2S pins configuration: MCK pin */
  GPIO_InitStruct.Pin = AUDIO_I2Sx_MCK_PIN;
  HAL_GPIO_Init(AUDIO_I2Sx_MCK_GPIO_PORT, &GPIO_InitStruct); 
  
  /* Enable the DMA clock */
  AUDIO_I2Sx_DMAx_CLK_ENABLE();
    
  if(hi2s->Instance == AUDIO_I2Sx)
  {
    /* Configure the hdma_i2sTx handle parameters */   
    hdma_i2sTx.Init.Channel             = AUDIO_I2Sx_DMAx_CHANNEL;
    hdma_i2sTx.Init.Direction           = DMA_MEMORY_TO_PERIPH;
    hdma_i2sTx.Init.PeriphInc           = DMA_PINC_DISABLE;
    hdma_i2sTx.Init.MemInc              = DMA_MINC_ENABLE;
    hdma_i2sTx.Init.PeriphDataAlignment = AUDIO_I2Sx_DMAx_PERIPH_DATA_SIZE;
    hdma_i2sTx.Init.MemDataAlignment    = AUDIO_I2Sx_DMAx_MEM_DATA_SIZE;
    hdma_i2sTx.Init.Mode                = DMA_NORMAL;
    hdma_i2sTx.Init.Priority            = DMA_PRIORITY_HIGH;
    hdma_i2sTx.Init.FIFOMode            = DMA_FIFOMODE_ENABLE;         
    hdma_i2sTx.Init.FIFOThreshold       = DMA_FIFO_THRESHOLD_FULL;
    hdma_i2sTx.Init.MemBurst            = DMA_MBURST_SINGLE;
    hdma_i2sTx.Init.PeriphBurst         = DMA_PBURST_SINGLE; 
    
    hdma_i2sTx.Instance = AUDIO_I2Sx_DMAx_STREAM;
    
    /* Associate the DMA handle */
    __HAL_LINKDMA(hi2s, hdmatx, hdma_i2sTx);
    
    /* Deinitialize the Stream for new transfer */
    HAL_DMA_DeInit(&hdma_i2sTx);
    
    /* Configure the DMA Stream */
    HAL_DMA_Init(&hdma_i2sTx);      
  }
  
  /* I2S DMA IRQ Channel configuration */
  HAL_NVIC_SetPriority(AUDIO_I2Sx_DMAx_IRQ, AUDIO_IRQ_PREPRIO, 0);
  HAL_NVIC_EnableIRQ(AUDIO_I2Sx_DMAx_IRQ); 
}

/**
  * @brief  Initializes the PCD MSP.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_MspInit(PCD_HandleTypeDef *hpcd)
{
  GPIO_InitTypeDef  GPIO_InitStruct;

	if( hpcd->Instance == USB_OTG_FS )
	{
		/* Configure USB FS GPIOs */
		__HAL_RCC_GPIOA_CLK_ENABLE();

		/* Configure DM DP Pins */
		GPIO_InitStruct.Pin         =   (GPIO_PIN_11 | GPIO_PIN_12);
		GPIO_InitStruct.Mode        =   GPIO_MODE_AF_PP;
		GPIO_InitStruct.Pull        =   GPIO_NOPULL;
		GPIO_InitStruct.Speed       =   GPIO_SPEED_HIGH;
		GPIO_InitStruct.Alternate   =   GPIO_AF10_OTG_FS;
		HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

		/* Configure VBUS Pin */
/*
		GPIO_InitStruct.Pin = GPIO_PIN_9;
		GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
		GPIO_InitStruct.Pull = GPIO_NOPULL;
		HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
*/
		/* Configure ID pin */
/*
		GPIO_InitStruct.Pin = GPIO_PIN_10;
		GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
		GPIO_InitStruct.Pull = GPIO_PULLUP;
		GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
		HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
*/

                __HAL_RCC_USB_OTG_FS_CLK_ENABLE();

                //HAL_NVIC_SetPriority(OTG_FS_IRQn, 6, 0);
                HAL_NVIC_SetPriority( OTG_FS_IRQn, BSP_NVIC_PRIO_USB_FS, 0 );
                HAL_NVIC_EnableIRQ( OTG_FS_IRQn );
        }
        else if( hpcd->Instance == USB_OTG_HS )
        {
                __HAL_RCC_GPIOA_CLK_ENABLE();
                __HAL_RCC_GPIOB_CLK_ENABLE();
                __HAL_RCC_GPIOC_CLK_ENABLE();

                /* CLK */
                GPIO_InitStruct.Pin = GPIO_PIN_5;
                GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
                GPIO_InitStruct.Pull = GPIO_NOPULL;
                GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
                GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
                HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

                /* D0 */
                GPIO_InitStruct.Pin = GPIO_PIN_3;
                GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
                GPIO_InitStruct.Pull = GPIO_NOPULL;
                GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
                GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
                HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

                /* D1 D2 D3 D4 D5 D6 D7 */
                GPIO_InitStruct.Pin = GPIO_PIN_0  | GPIO_PIN_1  | GPIO_PIN_5 |\
                                        GPIO_PIN_10 | GPIO_PIN_2 | GPIO_PIN_12 | GPIO_PIN_13;
                GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
                GPIO_InitStruct.Pull = GPIO_NOPULL;
                GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
                HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

                /* STP */
                GPIO_InitStruct.Pin = GPIO_PIN_0;
                GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
                GPIO_InitStruct.Pull = GPIO_NOPULL;
                GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
                HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

                /* NXT */
                GPIO_InitStruct.Pin = GPIO_PIN_3;
                GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
                GPIO_InitStruct.Pull = GPIO_NOPULL;
                GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
                HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

                /* DIR */
                GPIO_InitStruct.Pin = GPIO_PIN_2;
                GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
                GPIO_InitStruct.Pull = GPIO_NOPULL;
                GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
                HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

                __HAL_RCC_USB_OTG_HS_ULPI_CLK_ENABLE();

                __HAL_RCC_USB_OTG_HS_CLK_ENABLE();
                HAL_NVIC_SetPriority(OTG_HS_IRQn, 6, 0);
                HAL_NVIC_EnableIRQ(OTG_HS_IRQn);
//.........这里部分代码省略.........

/**
  * @brief  Initializes the HCD MSP.
  * @param  hhcd: HCD handle
  * @retval None
  */
void HAL_HCD_MspInit(HCD_HandleTypeDef *hhcd)
{
  GPIO_InitTypeDef  GPIO_InitStruct;
  
  if(hhcd->Instance == USB_OTG_FS)
  {
    /* Configure USB FS GPIOs */
    __GPIOA_CLK_ENABLE();
    __GPIOH_CLK_ENABLE();
    
    GPIO_InitStruct.Pin = (GPIO_PIN_11 | GPIO_PIN_12);
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); 
    
    GPIO_InitStruct.Pin = GPIO_PIN_10;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); 
    
    GPIO_InitStruct.Pin = GPIO_PIN_5;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOH, &GPIO_InitStruct); 
    
    /* Enable USB FS Clocks */ 
    __USB_OTG_FS_CLK_ENABLE();
    
    /* Set USBFS Interrupt to the lowest priority */
    HAL_NVIC_SetPriority(OTG_FS_IRQn, 5, 0);
    
    /* Enable USBFS Interrupt */
    HAL_NVIC_EnableIRQ(OTG_FS_IRQn);
  } 
  
  else if(hhcd->Instance == USB_OTG_HS)
  {
    /* Configure USB HS GPIOs */
    __GPIOA_CLK_ENABLE();
    __GPIOB_CLK_ENABLE();
    __GPIOC_CLK_ENABLE();
    __GPIOH_CLK_ENABLE();        
    __GPIOI_CLK_ENABLE();
    
    /* CLK */
    GPIO_InitStruct.Pin = GPIO_PIN_5;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF10_OTG_HS;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); 
    
    /* D0 */
    GPIO_InitStruct.Pin = GPIO_PIN_3;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); 
    
    /* D1 D2 D3 D4 D5 D6 D7 */
    GPIO_InitStruct.Pin = GPIO_PIN_0  | GPIO_PIN_1  | GPIO_PIN_5 |\
                          GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12 | GPIO_PIN_13;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); 
    
    /* STP */    
    GPIO_InitStruct.Pin = GPIO_PIN_0;
    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); 
    
    /* NXT */
    GPIO_InitStruct.Pin = GPIO_PIN_4;
    HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);   
    
    /* DIR */
    GPIO_InitStruct.Pin = GPIO_PIN_11;
    HAL_GPIO_Init(GPIOI, &GPIO_InitStruct);     
    
    /* Enable USB HS Clocks */ 
    __USB_OTG_HS_CLK_ENABLE();
    __USB_OTG_HS_ULPI_CLK_ENABLE();
    
    /* Set USBHS Interrupt to the lowest priority */
    HAL_NVIC_SetPriority(OTG_HS_IRQn, 5, 0);
    
    /* Enable USBHS Interrupt */
    HAL_NVIC_EnableIRQ(OTG_HS_IRQn);
  }   
}

/**
  * @brief  Initializes SDRAM MSP.
  * @param  hsdram: SDRAM handle
  * @param  Params
  * @retval None
  */
static void SDRAM_MspInit(SDRAM_HandleTypeDef  *hsdram, void *Params)
{
    static DMA_HandleTypeDef dma_handle;
    GPIO_InitTypeDef gpio_init_structure;

    /* Enable FMC clock */
    __HAL_RCC_FMC_CLK_ENABLE();

    /* Enable chosen DMAx clock */
    SDRAM_DMA_CLK_ENABLE();

    /* Enable GPIOs clock */
    __HAL_RCC_GPIOC_CLK_ENABLE();
    __HAL_RCC_GPIOD_CLK_ENABLE();
    __HAL_RCC_GPIOE_CLK_ENABLE();
    __HAL_RCC_GPIOF_CLK_ENABLE();
    __HAL_RCC_GPIOG_CLK_ENABLE();
    __HAL_RCC_GPIOH_CLK_ENABLE();

    /* Common GPIO configuration */
    gpio_init_structure.Mode      = GPIO_MODE_AF_PP;
    gpio_init_structure.Pull      = GPIO_PULLUP;
    gpio_init_structure.Speed     = GPIO_SPEED_FAST;
    gpio_init_structure.Alternate = GPIO_AF12_FMC;

    /* GPIOC configuration */
    gpio_init_structure.Pin   = GPIO_PIN_3;
    HAL_GPIO_Init(GPIOC, &gpio_init_structure);

    /* GPIOD configuration */
    gpio_init_structure.Pin   = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_3 | GPIO_PIN_8 | GPIO_PIN_9 |
                                GPIO_PIN_10 | GPIO_PIN_14 | GPIO_PIN_15;
    HAL_GPIO_Init(GPIOD, &gpio_init_structure);

    /* GPIOE configuration */
    gpio_init_structure.Pin   = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_7| GPIO_PIN_8 | GPIO_PIN_9 |\
                                GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_14 |\
                                GPIO_PIN_15;
    HAL_GPIO_Init(GPIOE, &gpio_init_structure);

    /* GPIOF configuration */
    gpio_init_structure.Pin   = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2| GPIO_PIN_3 | GPIO_PIN_4 |\
                                GPIO_PIN_5 | GPIO_PIN_11 | GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_14 |\
                                GPIO_PIN_15;
    HAL_GPIO_Init(GPIOF, &gpio_init_structure);

    /* GPIOG configuration */
    gpio_init_structure.Pin   = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_4| GPIO_PIN_5 | GPIO_PIN_8 |\
                                GPIO_PIN_15;
    HAL_GPIO_Init(GPIOG, &gpio_init_structure);

    /* GPIOH configuration */
    gpio_init_structure.Pin   = GPIO_PIN_3 | GPIO_PIN_5;
    HAL_GPIO_Init(GPIOH, &gpio_init_structure);

    /* Configure common DMA parameters */
    dma_handle.Init.Channel             = SDRAM_DMA_CHANNEL;
    dma_handle.Init.Direction           = DMA_MEMORY_TO_MEMORY;
    dma_handle.Init.PeriphInc           = DMA_PINC_ENABLE;
    dma_handle.Init.MemInc              = DMA_MINC_ENABLE;
    dma_handle.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
    dma_handle.Init.MemDataAlignment    = DMA_MDATAALIGN_WORD;
    dma_handle.Init.Mode                = DMA_NORMAL;
    dma_handle.Init.Priority            = DMA_PRIORITY_HIGH;
    dma_handle.Init.FIFOMode            = DMA_FIFOMODE_DISABLE;
    dma_handle.Init.FIFOThreshold       = DMA_FIFO_THRESHOLD_FULL;
    dma_handle.Init.MemBurst            = DMA_MBURST_SINGLE;
    dma_handle.Init.PeriphBurst         = DMA_PBURST_SINGLE;

    dma_handle.Instance = SDRAM_DMA_STREAM;

    /* Associate the DMA handle */
    __HAL_LINKDMA(hsdram, hdma, dma_handle);

    /* Deinitialize the stream for new transfer */
    HAL_DMA_DeInit(&dma_handle);

    /* Configure the DMA stream */
    HAL_DMA_Init(&dma_handle);

    /* NVIC configuration for DMA transfer complete interrupt */
    HAL_NVIC_SetPriority(SDRAM_DMA_IRQn, 5, 0);
    HAL_NVIC_EnableIRQ(SDRAM_DMA_IRQn);
}

/**
  * @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;
  GPIO_InitTypeDef  GPIO_InitStruct;

  /*##-1- Enable peripherals and GPIO Clocks #################################*/
  /* Enable GPIO 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;

  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, 4, 0);
  HAL_NVIC_EnableIRQ(USARTx_IRQn);

  /*##-4- Configure the DMA channels ##########################################*/
  /* 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, 5, 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, 5, 0);
  
  /* Enable the TIMx global Interrupt */
  HAL_NVIC_EnableIRQ(TIMx_IRQn);
}

/** 
  * Enable DMA controller clock
  */
void MX_DMA_Init(void) 
{
  /* DMA controller clock enable */
  __DMA1_CLK_ENABLE();
  __DMA2_CLK_ENABLE();

  /* DMA interrupt init */
  /* Sets the priority grouping field */
  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
  HAL_NVIC_SetPriority(DMA2_Stream2_IRQn, 8, 0);
  HAL_NVIC_EnableIRQ(DMA2_Stream2_IRQn);
  /* Sets the priority grouping field */
  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
  HAL_NVIC_SetPriority(DMA2_Stream3_IRQn, 8, 0);
  HAL_NVIC_EnableIRQ(DMA2_Stream3_IRQn);
  /* Sets the priority grouping field */
  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
  HAL_NVIC_SetPriority(DMA1_Stream0_IRQn, 8, 0);
  HAL_NVIC_EnableIRQ(DMA1_Stream0_IRQn);
  /* Sets the priority grouping field */
  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
  HAL_NVIC_SetPriority(DMA2_Stream0_IRQn, 8, 0);
  HAL_NVIC_EnableIRQ(DMA2_Stream0_IRQn);
  /* Sets the priority grouping field */
  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
  HAL_NVIC_SetPriority(DMA2_Stream6_IRQn, 8, 0);
  HAL_NVIC_EnableIRQ(DMA2_Stream6_IRQn);
  /* Sets the priority grouping field */
  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
  HAL_NVIC_SetPriority(DMA2_Stream1_IRQn, 7, 0);
  HAL_NVIC_EnableIRQ(DMA2_Stream1_IRQn);
  /* Sets the priority grouping field */
  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
  HAL_NVIC_SetPriority(DMA1_Stream3_IRQn, 8, 0);
  HAL_NVIC_EnableIRQ(DMA1_Stream3_IRQn);
  /* Sets the priority grouping field */
  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
  HAL_NVIC_SetPriority(DMA2_Stream4_IRQn, 7, 0);
  HAL_NVIC_EnableIRQ(DMA2_Stream4_IRQn);
  /* Sets the priority grouping field */
  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
  HAL_NVIC_SetPriority(DMA1_Stream4_IRQn, 2, 0);
  HAL_NVIC_EnableIRQ(DMA1_Stream4_IRQn);
  /* Sets the priority grouping field */
  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
  HAL_NVIC_SetPriority(DMA1_Stream1_IRQn, 2, 0);
  HAL_NVIC_EnableIRQ(DMA1_Stream1_IRQn);
  /* Sets the priority grouping field */
  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
  HAL_NVIC_SetPriority(DMA1_Stream7_IRQn, 7, 0);
  HAL_NVIC_EnableIRQ(DMA1_Stream7_IRQn);
  /* Sets the priority grouping field */
  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
  HAL_NVIC_SetPriority(DMA2_Stream5_IRQn, 7, 0);
  HAL_NVIC_EnableIRQ(DMA2_Stream5_IRQn);

}

//.........这里部分代码省略.........
#if defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0)
    SPI_APB_CLOCK = HAL_RCC_GetPCLK1Freq();
#else
    SPI_APB_CLOCK = HAL_RCC_GetPCLK2Freq();
#endif

    if (cfg->max_hz >= SPI_APB_CLOCK / 2)
    {
        spi_handle->Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
    }
    else if (cfg->max_hz >= SPI_APB_CLOCK / 4)
    {
        spi_handle->Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4;
    }
    else if (cfg->max_hz >= SPI_APB_CLOCK / 8)
    {
        spi_handle->Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8;
    }
    else if (cfg->max_hz >= SPI_APB_CLOCK / 16)
    {
        spi_handle->Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
    }
    else if (cfg->max_hz >= SPI_APB_CLOCK / 32)
    {
        spi_handle->Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_32;
    }
    else if (cfg->max_hz >= SPI_APB_CLOCK / 64)
    {
        spi_handle->Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_64;
    }
    else if (cfg->max_hz >= SPI_APB_CLOCK / 128)
    {
        spi_handle->Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_128;
    }
    else
    {
        /*  min prescaler 256 */
        spi_handle->Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256;
    }

    LOG_D("sys freq: %d, pclk2 freq: %d, SPI limiting freq: %d, BaudRatePrescaler: %d",
          HAL_RCC_GetSysClockFreq(),
          SPI_APB_CLOCK,
          cfg->max_hz,
          spi_handle->Init.BaudRatePrescaler);

    if (cfg->mode & RT_SPI_MSB)
    {
        spi_handle->Init.FirstBit = SPI_FIRSTBIT_MSB;
    }
    else
    {
        spi_handle->Init.FirstBit = SPI_FIRSTBIT_LSB;
    }

    spi_handle->Init.TIMode = SPI_TIMODE_DISABLE;
    spi_handle->Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
    spi_handle->State = HAL_SPI_STATE_RESET;
#if defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32G0)
    spi_handle->Init.NSSPMode          = SPI_NSS_PULSE_DISABLE;
#endif

    if (HAL_SPI_Init(spi_handle) != HAL_OK)
    {
        return RT_EIO;
    }

#if defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32F0) \
        || defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32G0)
    SET_BIT(spi_handle->Instance->CR2, SPI_RXFIFO_THRESHOLD_HF);
#endif

    /* DMA configuration */
    if (spi_drv->spi_dma_flag & SPI_USING_RX_DMA_FLAG)
    {
        HAL_DMA_Init(&spi_drv->dma.handle_rx);

        __HAL_LINKDMA(&spi_drv->handle, hdmarx, spi_drv->dma.handle_rx);

        /* NVIC configuration for DMA transfer complete interrupt */
        HAL_NVIC_SetPriority(spi_drv->config->dma_rx->dma_irq, 0, 0);
        HAL_NVIC_EnableIRQ(spi_drv->config->dma_rx->dma_irq);
    }

    if (spi_drv->spi_dma_flag & SPI_USING_TX_DMA_FLAG)
    {
        HAL_DMA_Init(&spi_drv->dma.handle_tx);

        __HAL_LINKDMA(&spi_drv->handle, hdmatx, spi_drv->dma.handle_tx);

        /* NVIC configuration for DMA transfer complete interrupt */
        HAL_NVIC_SetPriority(spi_drv->config->dma_tx->dma_irq, 0, 1);
        HAL_NVIC_EnableIRQ(spi_drv->config->dma_tx->dma_irq);
    }

    __HAL_SPI_ENABLE(spi_handle);

    LOG_D("%s init done", spi_drv->config->bus_name);
    return RT_EOK;
}

/**
  * @brief  AUDIO IN I2S MSP Init.
  * @param  None
  * @retval None
  */
static void I2S2_MspInit(void)
{
  static DMA_HandleTypeDef hdma_i2sRx;
  GPIO_InitTypeDef  GPIO_InitStruct;
  I2S_HandleTypeDef *hi2s = &hAudioInI2s;

  /* Enable the I2S2 peripheral clock */
  I2S2_CLK_ENABLE();

  /* Enable I2S GPIO clocks */
  I2S2_SCK_GPIO_CLK_ENABLE();
  I2S2_MOSI_GPIO_CLK_ENABLE();
  
  /* I2S2 pins configuration: SCK and MOSI pins ------------------------------*/
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed     = GPIO_SPEED_FAST;

  GPIO_InitStruct.Pin = I2S2_SCK_PIN; 
  GPIO_InitStruct.Alternate  = I2S2_SCK_AF;
  HAL_GPIO_Init(I2S2_SCK_GPIO_PORT, &GPIO_InitStruct);
  
  GPIO_InitStruct.Pin = I2S2_MOSI_PIN ;
  GPIO_InitStruct.Alternate  = I2S2_MOSI_AF;
  HAL_GPIO_Init(I2S2_MOSI_GPIO_PORT, &GPIO_InitStruct); 

  /* Enable the DMA clock */
  I2S2_DMAx_CLK_ENABLE();
    
  if(hi2s->Instance == I2S2)
  {
    /* Configure the hdma_i2sRx handle parameters */   
    hdma_i2sRx.Init.Channel             = I2S2_DMAx_CHANNEL;
    hdma_i2sRx.Init.Direction           = DMA_PERIPH_TO_MEMORY;
    hdma_i2sRx.Init.PeriphInc           = DMA_PINC_DISABLE;
    hdma_i2sRx.Init.MemInc              = DMA_MINC_ENABLE;
    hdma_i2sRx.Init.PeriphDataAlignment = I2S2_DMAx_PERIPH_DATA_SIZE;
    hdma_i2sRx.Init.MemDataAlignment    = I2S2_DMAx_MEM_DATA_SIZE;
    hdma_i2sRx.Init.Mode                = DMA_CIRCULAR;
    hdma_i2sRx.Init.Priority            = DMA_PRIORITY_HIGH;
    hdma_i2sRx.Init.FIFOMode            = DMA_FIFOMODE_DISABLE;         
    hdma_i2sRx.Init.FIFOThreshold       = DMA_FIFO_THRESHOLD_FULL;
    hdma_i2sRx.Init.MemBurst            = DMA_MBURST_SINGLE;
    hdma_i2sRx.Init.PeriphBurst         = DMA_MBURST_SINGLE; 
    
    hdma_i2sRx.Instance = I2S2_DMAx_STREAM;
    
    /* Associate the DMA handle */
    __HAL_LINKDMA(hi2s, hdmarx, hdma_i2sRx);
    
    /* Deinitialize the Stream for new transfer */
    HAL_DMA_DeInit(&hdma_i2sRx);
    
    /* Configure the DMA Stream */
    HAL_DMA_Init(&hdma_i2sRx);      
  }
  
  /* I2S DMA IRQ Channel configuration */
  HAL_NVIC_SetPriority(I2S2_DMAx_IRQ, AUDIO_IN_IRQ_PREPRIO, 0);
  HAL_NVIC_EnableIRQ(I2S2_DMAx_IRQ); 
}

/**
  * @brief ADC MSP initialization
  *        This function configures the hardware resources used in this example:
  *          - Enable clock of ADC peripheral
  *          - Configure the GPIO associated to the peripheral channels
  *          - Configure the DMA associated to the peripheral
  *          - Configure the NVIC associated to the peripheral interruptions
  * @param hadc: ADC handle pointer
  * @retval None
  */
void HAL_ADC_MspInit(ADC_HandleTypeDef *hadc)
{
  GPIO_InitTypeDef          GPIO_InitStruct;
  static DMA_HandleTypeDef  DmaHandle;
  RCC_PeriphCLKInitTypeDef  PeriphClkInit;
  
  /*##-1- Enable peripherals and GPIO Clocks #################################*/
  /* Enable clock of GPIO associated to the peripheral channels */
  ADCx_CHANNELa_GPIO_CLK_ENABLE();
  
  /* Enable clock of ADCx peripheral */
  ADCx_CLK_ENABLE();

  /* Note: In case of usage of asynchronous clock derived from ADC dedicated  */
  /*       PLL 72MHz, with ADC setting                                        */
  /*       "AdcHandle.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1",            */
  /*       the clock source has to be enabled at RCC top level using macro    */
  /*       "__HAL_RCC_ADC12_CONFIG(RCC_ADC12PLLCLK_DIV1)" or function         */
  /*       "HAL_RCCEx_PeriphCLKConfig()" (refer to comments in file           */
  /*       "stm32f3_hal_adc.c_ex" header).                                    */
  
  /* Enable asynchronous clock source of ADCx */
  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC12;
  PeriphClkInit.Adc12ClockSelection = RCC_ADC12PLLCLK_DIV1;
  HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit);

  /* Enable clock of DMA associated to the peripheral */
  ADCx_DMA_CLK_ENABLE();
  
  /*##-2- Configure peripheral GPIO ##########################################*/
  /* Configure GPIO pin of the selected ADC channel */
  GPIO_InitStruct.Pin = ADCx_CHANNELa_PIN;
  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(ADCx_CHANNELa_GPIO_PORT, &GPIO_InitStruct);
  
  /*##-3- Configure the DMA ##################################################*/
  /* Configure DMA parameters */
  DmaHandle.Instance = ADCx_DMA;

  DmaHandle.Init.Direction           = DMA_PERIPH_TO_MEMORY;
  DmaHandle.Init.PeriphInc           = DMA_PINC_DISABLE;
  DmaHandle.Init.MemInc              = DMA_MINC_ENABLE;
  DmaHandle.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;   /* Transfer from ADC by half-word to match with ADC configuration: ADC resolution 10 or 12 bits */
  DmaHandle.Init.MemDataAlignment    = DMA_MDATAALIGN_HALFWORD;   /* Transfer to memory by half-word to match with buffer variable type: half-word */
  DmaHandle.Init.Mode                = DMA_CIRCULAR;              /* DMA in circular mode to match with ADC configuration: DMA continuous requests */
  DmaHandle.Init.Priority            = DMA_PRIORITY_HIGH;
  
  /* Deinitialize  & Initialize the DMA for new transfer */
  HAL_DMA_DeInit(&DmaHandle);
  HAL_DMA_Init(&DmaHandle);

  /* Associate the initialized DMA handle to the ADC handle */
  __HAL_LINKDMA(hadc, DMA_Handle, DmaHandle);
  
  /*##-4- Configure the NVIC #################################################*/

  /* NVIC configuration for DMA interrupt (transfer completion or error) */
  /* Priority: high-priority */
  HAL_NVIC_SetPriority(ADCx_DMA_IRQn, 1, 0);
  HAL_NVIC_EnableIRQ(ADCx_DMA_IRQn);
  

  /* NVIC configuration for ADC interrupt */
  /* Priority: high-priority */
  HAL_NVIC_SetPriority(ADCx_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(ADCx_IRQn);
}

void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{

  GPIO_InitTypeDef GPIO_InitStruct;
  if(huart->Instance==USART3)
  {
  /* USER CODE BEGIN USART3_MspInit 0 */

  /* USER CODE END USART3_MspInit 0 */
    /* Peripheral clock enable */
    __USART3_CLK_ENABLE();
  
    /**USART3 GPIO Configuration    
    PB10     ------> USART3_TX
    PB11     ------> USART3_RX
    PB13     ------> USART3_CTS
    PB14     ------> USART3_RTS 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_11;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_14;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

    /* Peripheral DMA init*/
  
    hdma_usart3_rx.Instance = DMA1_Stream1;
    hdma_usart3_rx.Init.Channel = DMA_CHANNEL_4;
    hdma_usart3_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
    hdma_usart3_rx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart3_rx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart3_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart3_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart3_rx.Init.Mode = DMA_CIRCULAR;
    hdma_usart3_rx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_usart3_rx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
    hdma_usart3_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
    hdma_usart3_rx.Init.MemBurst = DMA_MBURST_SINGLE;
    hdma_usart3_rx.Init.PeriphBurst = DMA_PBURST_SINGLE;
    HAL_DMA_Init(&hdma_usart3_rx);

    __HAL_LINKDMA(huart,hdmarx,hdma_usart3_rx);

    hdma_usart3_tx.Instance = DMA1_Stream3;
    hdma_usart3_tx.Init.Channel = DMA_CHANNEL_4;
    hdma_usart3_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_usart3_tx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart3_tx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart3_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart3_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart3_tx.Init.Mode = DMA_CIRCULAR;
    hdma_usart3_tx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_usart3_tx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
    hdma_usart3_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
    hdma_usart3_tx.Init.MemBurst = DMA_MBURST_SINGLE;
    hdma_usart3_tx.Init.PeriphBurst = DMA_PBURST_SINGLE;
    HAL_DMA_Init(&hdma_usart3_tx);

    __HAL_LINKDMA(huart,hdmatx,hdma_usart3_tx);

    /* Peripheral interrupt init*/
    HAL_NVIC_SetPriority(USART3_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(USART3_IRQn);
  /* USER CODE BEGIN USART3_MspInit 1 */

  /* USER CODE END USART3_MspInit 1 */
  }
}

/**
  * @brief RTC MSP Initialization
  *        This function configures the hardware resources used in this example
  * @param hrtc: RTC handle pointer
  *
  * @note  Care must be taken when HAL_RCCEx_PeriphCLKConfig() is used to select
  *        the RTC clock source; in this case the Backup domain will be reset in
  *        order to modify the RTC Clock source, as consequence RTC registers (including
  *        the backup registers) and RCC_BDCR register are set to their reset values.
  *
  * @retval None
  */
void HAL_RTC_MspInit(RTC_HandleTypeDef *hrtc)
{
  RCC_OscInitTypeDef        RCC_OscInitStruct;
  RCC_PeriphCLKInitTypeDef  PeriphClkInitStruct;
  
  /*##-1- Enables the PWR Clock and Enables access to the backup domain ###################################*/
  /* To change the source clock of the RTC feature (LSE, LSI), You have to:
     - Enable the power clock using __HAL_RCC_PWR_CLK_ENABLE()
     - Enable write access using HAL_PWR_EnableBkUpAccess() function before to
       configure the RTC clock source (to be done once after reset).
     - Reset the Back up Domain using __HAL_RCC_BACKUPRESET_FORCE() and
       __HAL_RCC_BACKUPRESET_RELEASE().
     - Configure the needed RTC clock source */
  __HAL_RCC_PWR_CLK_ENABLE();
  HAL_PWR_EnableBkUpAccess();
  
  /*##-2- Configue LSE/LSI as RTC clock soucre ###############################*/
#ifdef RTC_CLOCK_SOURCE_LSE
  RCC_OscInitStruct.OscillatorType =  RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  RCC_OscInitStruct.LSEState = RCC_LSE_ON;
  RCC_OscInitStruct.LSIState = RCC_LSI_OFF;
  if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  
  PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
  PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
  if(HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
#elif defined (RTC_CLOCK_SOURCE_LSI)
  RCC_OscInitStruct.OscillatorType =  RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  RCC_OscInitStruct.LSIState = RCC_LSI_ON;
  RCC_OscInitStruct.LSEState = RCC_LSE_OFF;
  if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  
  PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
  PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;
  if(HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
#else
#error Please select the RTC Clock source inside the main.h file
#endif /*RTC_CLOCK_SOURCE_LSE*/
  
  /*##-2- Enable RTC peripheral Clocks #######################################*/
  /* Enable RTC Clock */
  __HAL_RCC_RTC_ENABLE();
  
  /*##-4- Configure the NVIC for RTC Alarm ###################################*/
  HAL_NVIC_SetPriority(RTC_Alarm_IRQn, 0x0F, 0);
  HAL_NVIC_EnableIRQ(RTC_Alarm_IRQn);
}

void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{

  GPIO_InitTypeDef GPIO_InitStruct;
  if(huart->Instance==UART4)
  {
  /* USER CODE BEGIN UART4_MspInit 0 */

  /* USER CODE END UART4_MspInit 0 */
    /* Peripheral clock enable */
    __HAL_RCC_UART4_CLK_ENABLE();
  
    /**UART4 GPIO Configuration    
    PA0-WKUP     ------> UART4_TX
    PA1     ------> UART4_RX 
    */
    GPIO_InitStruct.Pin = COMMS_TX_U4_Pin|COMMS_RX_U4_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF8_UART4;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* Peripheral DMA init*/
  
    hdma_uart4_tx.Instance = DMA1_Stream4;
    hdma_uart4_tx.Init.Channel = DMA_CHANNEL_4;
    hdma_uart4_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_uart4_tx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_uart4_tx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_uart4_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_uart4_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_uart4_tx.Init.Mode = DMA_NORMAL;
    hdma_uart4_tx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_uart4_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
    if (HAL_DMA_Init(&hdma_uart4_tx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(huart,hdmatx,hdma_uart4_tx);

    /* Peripheral interrupt init */
    HAL_NVIC_SetPriority(UART4_IRQn, 5, 0);
    HAL_NVIC_EnableIRQ(UART4_IRQn);
  /* USER CODE BEGIN UART4_MspInit 1 */

  /* USER CODE END UART4_MspInit 1 */
  }
  else if(huart->Instance==USART1)
  {
  /* USER CODE BEGIN USART1_MspInit 0 */

  /* USER CODE END USART1_MspInit 0 */
    /* Peripheral clock enable */
    __HAL_RCC_USART1_CLK_ENABLE();
  
    /**USART1 GPIO Configuration    
    PA9     ------> USART1_TX
    PA10     ------> USART1_RX 
    */
    GPIO_InitStruct.Pin = EPS_TX_U1_Pin|EPS_RX_U1_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* Peripheral DMA init*/
  
    hdma_usart1_tx.Instance = DMA2_Stream7;
    hdma_usart1_tx.Init.Channel = DMA_CHANNEL_4;
    hdma_usart1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_usart1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart1_tx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart1_tx.Init.Mode = DMA_NORMAL;
    hdma_usart1_tx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_usart1_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
    if (HAL_DMA_Init(&hdma_usart1_tx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(huart,hdmatx,hdma_usart1_tx);

    /* Peripheral interrupt init */
    HAL_NVIC_SetPriority(USART1_IRQn, 5, 0);
    HAL_NVIC_EnableIRQ(USART1_IRQn);
  /* USER CODE BEGIN USART1_MspInit 1 */

  /* USER CODE END USART1_MspInit 1 */
  }
  else if(huart->Instance==USART2)
  {
  /* USER CODE BEGIN USART2_MspInit 0 */

  /* USER CODE END USART2_MspInit 0 */
    /* Peripheral clock enable */
//.........这里部分代码省略.........