void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{

  GPIO_InitTypeDef GPIO_InitStruct;
  if(huart->Instance==USART1)
  {
    /* Peripheral clock enable */
    __USART1_CLK_ENABLE();
  
    /**USART1 GPIO Configuration    
    PA9     ------> USART1_TX
    PA10     ------> USART1_RX
    PA11     ------> USART1_CTS
    PA12     ------> USART1_RTS 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  }

}
Пример #2
0
void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{

  GPIO_InitTypeDef GPIO_InitStruct;
  if(huart->Instance==USART1)
  {
  /* USER CODE BEGIN USART1_MspInit 0 */

  /* USER CODE END USART1_MspInit 0 */
    /* Peripheral clock enable */
    __USART1_CLK_ENABLE();
  
    /**USART1 GPIO Configuration    
    PA9     ------> USART1_TX
    PA10     ------> USART1_RX 
    */
    GPIO_InitStruct.Pin = STLINK_RX_Pin|STLINK_TX_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /* 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 */
  }

}
Пример #3
0
void debugInit(uint32_t baudrate)
{
   GPIO_InitTypeDef GPIO_InitStructure;

   //Enable GPIOA clock
   __GPIOA_CLK_ENABLE();
   //Enable USART1 clock
   __USART1_CLK_ENABLE();

   //Configure USART1_TX (PA9)
   GPIO_InitStructure.Pin = GPIO_PIN_9;
   GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
   GPIO_InitStructure.Pull = GPIO_PULLUP;
   GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
   GPIO_InitStructure.Alternate = GPIO_AF7_USART1;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);

   //Configure USART1_RX (PA10)
   GPIO_InitStructure.Pin = GPIO_PIN_10;
   GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
   GPIO_InitStructure.Pull = GPIO_PULLUP;
   GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
   GPIO_InitStructure.Alternate = GPIO_AF7_USART1;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);

   //Configure USART1
   UART_Handle.Instance = USART1;
   UART_Handle.Init.BaudRate = baudrate;
   UART_Handle.Init.WordLength = UART_WORDLENGTH_8B;
   UART_Handle.Init.StopBits = UART_STOPBITS_1;
   UART_Handle.Init.Parity = UART_PARITY_NONE;
   UART_Handle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
   UART_Handle.Init.Mode = UART_MODE_TX_RX;
   HAL_UART_Init(&UART_Handle);
}
/**
****************************************************************

Function:	cBT_Init
Author	:	@hiyangdong
Version	:	V1.0
date	:	2015-05-13
brief	:	initialize the RGB pins

*****************************************************************
*/
void cBT_Init(uint32_t Baud)
{

	huart1.Instance = USART1;
	huart1.Init.BaudRate = Baud;
	huart1.Init.WordLength = UART_WORDLENGTH_8B;
	huart1.Init.StopBits = UART_STOPBITS_1;
	huart1.Init.Parity = UART_PARITY_NONE;
	huart1.Init.Mode = UART_MODE_TX_RX;
	huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
	huart1.Init.OverSampling = UART_OVERSAMPLING_16;
	huart1.Init.OneBitSampling = UART_ONEBIT_SAMPLING_DISABLED ;
	huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
	HAL_UART_Init(&huart1);
  
    /* Peripheral clock enable */
    __USART1_CLK_ENABLE();
  
    /**USART1 GPIO Configuration    
    PA2     ------> USART1_TX
    PA3     ------> USART1_RX 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF1_USART1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /* System interrupt init*/
    HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(USART1_IRQn);

}
//******************************************************************************
//  board_uart_enable_clock
//
//           Ensures that the specified UART's clock is turned on.
//******************************************************************************
int  board_uart_enable_clock (int module_id)
{
      //--------------------------------------------------------
      // Turn on clock for the associated SPIx module.
      //--------------------------------------------------------
    switch (module_id)
     { case 0:                           // USARTMD / VCP
             __USART2_CLK_ENABLE();
             break;
       case 1:                           // USART1
             __USART1_CLK_ENABLE();
             break;
        case 2:                          // USART2
             __USART2_CLK_ENABLE();
             break;
#if defined(STM32F446xx)
        case 3:                          // USART3
             __USART3_CLK_ENABLE();
             break;
        case 4:                          // UART4
             __UART4_CLK_ENABLE();
             break;
        case 5:                          // UART5
             __UART5_CLK_ENABLE();
             break;
#endif
        case 6:                          // USART6
             __USART6_CLK_ENABLE();
             break;
     }
    return (0);          // denote everything worked OK
}
Пример #6
0
void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{

  GPIO_InitTypeDef GPIO_InitStruct;
  if(huart->Instance==USART1)
  {
  /* USER CODE BEGIN USART1_MspInit 0 */

  /* USER CODE END USART1_MspInit 0 */
    /* Peripheral clock enable */
    __USART1_CLK_ENABLE();
  
    /**USART1 GPIO Configuration    
    PA9     ------> USART1_TX
    PA10     ------> USART1_RX 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_9;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_10;
    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /* USER CODE BEGIN USART1_MspInit 1 */

  /* USER CODE END USART1_MspInit 1 */
  }

}
Пример #7
0
void serial_init(serial_t *obj, PinName tx, PinName rx)
{
    // Determine the UART to use (UART_1, UART_2, ...)
    UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
    UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);

    // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
    obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
    MBED_ASSERT(obj->uart != (UARTName)NC);

    // Enable UART clock
    if (obj->uart == UART_1) {
        __USART1_CLK_ENABLE();
        obj->index = 0;
    }

    if (obj->uart == UART_2) {
        __USART2_CLK_ENABLE();
        obj->index = 1;
    }

    if (obj->uart == UART_3) {
        __USART3_CLK_ENABLE();
        obj->index = 2;
    }

    // Configure the UART pins
    pinmap_pinout(tx, PinMap_UART_TX);
    pinmap_pinout(rx, PinMap_UART_RX);
    if (tx != NC) {
        pin_mode(tx, PullUp);
    }
    if (rx != NC) {
        pin_mode(rx, PullUp);
    }

    // Configure UART
#if defined  (MX_DEFAULT_SERIAL_BAUD)
    obj->baudrate = MX_DEFAULT_SERIAL_BAUD;
#else
    obj->baudrate = 9600;
#endif
    obj->databits = UART_WORDLENGTH_8B;
    obj->stopbits = UART_STOPBITS_1;
    obj->parity   = UART_PARITY_NONE;
    obj->pin_tx   = tx;
    obj->pin_rx   = rx;

    init_uart(obj);

    // For stdio management
    if (obj->uart == STDIO_UART) {
        stdio_uart_inited = 1;
        memcpy(&stdio_uart, obj, sizeof(serial_t));
    }
}
Пример #8
0
void serial_init(serial_t *obj, PinName tx, PinName rx) {
    // Determine the UART to use (UART_1, UART_2, ...)
    UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
    UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);

    // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
    obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);

    if (obj->uart == (UARTName)NC) {
        error("Serial error: pinout mapping failed.");
    }

    // Enable USART clock
    if (obj->uart == UART_1) {
        __USART1_CLK_ENABLE();
        obj->index = 0;
    }
    if (obj->uart == UART_2) {
        __USART2_CLK_ENABLE();
        obj->index = 1;
    }

    if (obj->uart == UART_3) {
        __USART3_CLK_ENABLE();
        obj->index = 2;
    }
    if (obj->uart == UART_4) {
        __USART4_CLK_ENABLE();
        obj->index = 3;
    }

    // Configure the UART pins
    pinmap_pinout(tx, PinMap_UART_TX);
    pinmap_pinout(rx, PinMap_UART_RX);
    pin_mode(tx, PullUp);
    pin_mode(rx, PullUp);

    // Configure UART
    obj->baudrate = 9600;
    obj->databits = UART_WORDLENGTH_8B;
    obj->stopbits = UART_STOPBITS_1;
    obj->parity   = UART_PARITY_NONE;

    obj->pin_tx = tx;
    obj->pin_rx = rx;

    init_uart(obj);

    // For stdio management
    if (obj->uart == STDIO_UART) {
        stdio_uart_inited = 1;
        memcpy(&stdio_uart, obj, sizeof(serial_t));
    }
}
void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{
    GPIO_InitTypeDef GPIO_InitStruct;
    if(huart->Instance==USART1)
    {
        /* USER CODE BEGIN USART1_MspInit 0 */

        /* USER CODE END USART1_MspInit 0 */
        /* Peripheral clock enable */
        __USART1_CLK_ENABLE();

        /**USART1 GPIO Configuration
        PA9     ------> USART1_TX
        PA10     ------> USART1_RX
        */
        GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
        GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
        GPIO_InitStruct.Pull = GPIO_NOPULL;
        GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
        GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

        /* 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 */
            __USART2_CLK_ENABLE();

            /**USART2 GPIO Configuration
            PA2     ------> USART2_TX
            PA3     ------> USART2_RX
            */
            GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
            GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
            GPIO_InitStruct.Pull = GPIO_NOPULL;
            GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
            GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
            HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

            /* USER CODE BEGIN USART2_MspInit 1 */

            /* USER CODE END USART2_MspInit 1 */
        }
    }

}
Пример #10
0
void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{

  GPIO_InitTypeDef GPIO_InitStruct;
  if(huart->Instance==USART1)
  {
  /* USER CODE BEGIN USART1_MspInit 0 */

  /* USER CODE END USART1_MspInit 0 */
    /* Peripheral clock enable */
    __USART1_CLK_ENABLE();
  
    /**USART1 GPIO Configuration    
    PA9     ------> USART1_TX
    PA10     ------> USART1_RX 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF1_USART1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /* USER CODE BEGIN USART1_MspInit 1 */

  /* USER CODE END USART1_MspInit 1 */
  }
  else 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 
    */
    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_AF4_USART3;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  /* USER CODE BEGIN USART3_MspInit 1 */

  /* USER CODE END USART3_MspInit 1 */
  }
}
Пример #11
0
 void PX4_UART_MspInit(UART_HandleTypeDef *huart)
 {
	 	 //配置PX4  TX,RX  GPIOA_PIN9  GPIOA_10
	 	GPIO_InitTypeDef     GPIO_PX4;
	 	/* Enable the GPIO_A clock */
	  __GPIOA_CLK_ENABLE();//打开端口时钟
	 __USART1_CLK_ENABLE();//打开串口时钟
		GPIO_PX4.Pin = GPIO_PIN_9;					//GPIOA Pin9 RX
		GPIO_PX4.Mode = GPIO_MODE_AF_PP;		//作为选择功能
		GPIO_PX4.Pull = GPIO_PULLUP;				//上拉
		GPIO_PX4.Speed = GPIO_SPEED_HIGH;		//高速
		GPIO_PX4.Alternate=GPIO_AF7_USART1;	//选择功能 作为USART功能
		HAL_GPIO_Init(GPIOA, &GPIO_PX4);  
		GPIO_PX4.Pin=GPIO_PIN_10;						//配置RX口
		HAL_GPIO_Init(GPIOA, &GPIO_PX4); 
	   
	 
		HAL_NVIC_SetPriority(USART1_IRQn, 0, 1);
		HAL_NVIC_EnableIRQ(USART1_IRQn);
#if 0	/*##-3- Configure the DMA ##################################################*/
  /* Configure the DMA handler for reception process */
	__HAL_RCC_DMA2_CLK_ENABLE();		//打开DMA时钟
	  PX4DMA_Receive.Instance               = DMA2_Stream2;									//数据流2
  PX4DMA_Receive.Init.Channel             = DMA_CHANNEL_4;								//通道4
  PX4DMA_Receive.Init.Direction           = DMA_PERIPH_TO_MEMORY;					//外设到内存
  PX4DMA_Receive.Init.PeriphInc           = DMA_PINC_DISABLE;							//外设地址是否增  不增加
  PX4DMA_Receive.Init.MemInc              = DMA_MINC_ENABLE;							//内存地址是否增	 递增
  PX4DMA_Receive.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;					//外设字节对其
  PX4DMA_Receive.Init.MemDataAlignment    = DMA_MDATAALIGN_BYTE;					//内存字节对其
  PX4DMA_Receive.Init.Mode                = DMA_NORMAL;										//DMA 模式 正常模式
  PX4DMA_Receive.Init.Priority            = DMA_PRIORITY_HIGH;						//优先级
//	PX4DMA_Receive.Init.FIFOMode						= DMA_FIFOMODE_DISABLE;					//是否使用FIFO   否     
//	PX4DMA_Receive.Init.FIFOThreshold       = DMA_FIFO_THRESHOLD_HALFFULL;  //指定FIFO的阈值水平
//	PX4DMA_Receive.Init.MemBurst 						= DMA_MBURST_SINGLE;						//指定的Burst转移配置内存传输
//	PX4DMA_Receive.Init.PeriphBurst 				= DMA_PBURST_SINGLE;						//指定的Burst转移配置外围转移
  HAL_DMA_Init(&PX4DMA_Receive);//DMA初始化
	
	//*****************************************************自配DMA模式  start******************//
	    /* Set the UART DMA transfer complete callback */
   // PX4_UartHandle->hdmarx->XferCpltCallback = UART_DMAReceiveCplt;
		    /* Enable the DMA channel */
    //HAL_DMA_Start_IT(PX4_UartHandle->hdmarx, (uint32_t)&PX4_UartHandle->Instance->RDR, *(uint32_t*)PX4_Buf, PX4_GetBuf);
	//*****************************************************自配DMA模式  start******************//
	  /* Associate the initialized DMA handle to the the UART handle */
  __HAL_LINKDMA(&PX4_UartHandle, hdmarx, PX4DMA_Receive);
	//DMA 中断
	HAL_NVIC_SetPriority(DMA2_Stream2_IRQn, 0, 0);//设置优先级
  HAL_NVIC_EnableIRQ(DMA2_Stream2_IRQn);//使能DMA2中断
	#endif
 }
Пример #12
0
void Uart1UARTInit(UART_HandleTypeDef* huart) {
	__USART1_CLK_ENABLE()
	;
	huart->Instance = USART1;
	huart->Init.BaudRate = 115200;
	huart->Init.WordLength = UART_WORDLENGTH_8B;
	huart->Init.StopBits = UART_STOPBITS_1;
	huart->Init.Parity = UART_PARITY_NONE;
	huart->Init.Mode = UART_MODE_TX_RX;
	huart->Init.HwFlowCtl = UART_HWCONTROL_NONE;
	huart->Init.OverSampling = UART_OVERSAMPLING_16;
	MyHAL_UARTInit(huart);
	__HAL_UART_ENABLE_IT(huart, UART_IT_RXNE);
}
Пример #13
0
void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{

  GPIO_InitTypeDef GPIO_InitStruct;
  if(huart->Instance==USART1)
  {
  /* USER CODE BEGIN USART1_MspInit 0 */

  /* USER CODE END USART1_MspInit 0 */
    /* Peripheral clock enable */
    __USART1_CLK_ENABLE();
  
    /**USART1 GPIO Configuration    
    PA9     ------> USART1_TX
    PA10     ------> USART1_RX 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_9;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_10;
    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* Peripheral DMA init*/
  
    hdma_usart1_tx.Instance = DMA1_Channel4;
    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_MEDIUM;
    HAL_DMA_Init(&hdma_usart1_tx);

    __HAL_LINKDMA(huart,hdmatx,hdma_usart1_tx);

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

  /* USER CODE END USART1_MspInit 1 */
  }
}
Пример #14
0
/**
 * @brief	Enables the UART1 interface with the current settings
 * @param	None
 * @retval	None
 */
static void prvEnableUart1Interface()
{
	/* Enable UART clock */
	__USART1_CLK_ENABLE();

	/* Configure priority and enable interrupt */
	HAL_NVIC_SetPriority(USART1_IRQn, configLIBRARY_LOWEST_INTERRUPT_PRIORITY, 0);
	HAL_NVIC_EnableIRQ(USART1_IRQn);

	/* Enable the UART */
	HAL_UART_Init(&UART_Handle);

	/* If we are in RX mode we should start receiving data */
	if (UART_Handle.Init.Mode == UARTMode_RX || UART_Handle.Init.Mode == UARTMode_TX_RX)
		HAL_UART_Receive_IT(&UART_Handle, &prvReceivedByte, 1);

	prvChannelIsEnabled = true;
}
Пример #15
0
void vigserialInit(int mode)
{
 if (mode!=CMD_INTERACTIVE) return;

GPIO_InitTypeDef GPIO_InitStruct;
/* Configure the GPIO pins for the UART */
__GPIOC_CLK_ENABLE();
GPIO_InitStruct.Pin = GPIO_PIN_5;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = 7;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_4;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = 7;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);


__USART1_CLK_ENABLE();
/* Put the USART peripheral in the Asynchronous mode (UART Mode) */
/* UART configured as follows:
- Word Length = 8 Bits
- Stop Bit = One Stop bit
- Parity = ODD parity
- BaudRate = UARTBAUDRATE baud
- Hardware flow control disabled (RTS and CTS signals) */
UartHandle.Instance = USART1;
UartHandle.Init.BaudRate = 9600;
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)
{
/* Initialization Error */
Error_Handler();
}
printf("UART Initialiser\n");

}
Пример #16
0
void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{

  GPIO_InitTypeDef GPIO_InitStruct;
  if(huart->Instance==USART1)
  {

    __USART1_CLK_ENABLE();
  
    /**USART1 GPIO Configuration    
    PA9     ------> USART1_TX
    PA10     ------> USART1_RX 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  }
  else if(huart->Instance==USART2)
  {

    __USART2_CLK_ENABLE();
  
    /**USART2 GPIO Configuration    
    PA2     ------> USART2_TX
    PA3     ------> USART2_RX 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  }

}
Пример #17
0
 void PX4FlowPortInit(void)
 {
	 //*******************************************************
	 //配置USART发送与接受
		__USART1_CLK_ENABLE();
		PX4_UartHandle.Instance        = USART1;

		PX4_UartHandle.Init.BaudRate   = 115200;
		PX4_UartHandle.Init.WordLength = UART_WORDLENGTH_8B;
		PX4_UartHandle.Init.StopBits   = UART_STOPBITS_1;
		PX4_UartHandle.Init.Parity     = UART_PARITY_NONE;
		PX4_UartHandle.Init.HwFlowCtl  = UART_HWCONTROL_NONE;
		PX4_UartHandle.Init.Mode       = UART_MODE_TX_RX;
		PX4_UartHandle.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_RXOVERRUNDISABLE_INIT; 
		PX4_UartHandle.AdvancedInit.OverrunDisable=UART_ADVFEATURE_OVERRUN_DISABLE;//关闭OverRun
		HAL_UART_DeInit(&PX4_UartHandle);//卸载USART1
		HAL_UART_Init(&PX4_UartHandle);//装载USART1
	 		   /* NVIC for USART, to catch the RX complete */
  
  /*##-4- Put UART peripheral in reception process ###########################*/ 
    /* Enable the UART Data Register not empty Interrupt */
    __HAL_UART_ENABLE_IT(&PX4_UartHandle, UART_IT_RXNE);	
 }
Пример #18
0
void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{

  GPIO_InitTypeDef GPIO_InitStruct;
  if(huart->Instance==USART1)
  {
  /* USER CODE BEGIN USART1_MspInit 0 */

  /* USER CODE END USART1_MspInit 0 */
    /* Peripheral clock enable */
    __USART1_CLK_ENABLE();
  
    /**USART1 GPIO Configuration    
    PA9     ------> USART1_TX
    PA10     ------> USART1_RX 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* 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 */
    __USART2_CLK_ENABLE();
  
    /**USART2 GPIO Configuration    
    PA2     ------> USART2_TX
    PA3     ------> USART2_RX 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* Peripheral DMA init*/
  
    hdma_usart2_tx.Instance = DMA1_Stream6;
    hdma_usart2_tx.Init.Channel = DMA_CHANNEL_4;
    hdma_usart2_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_usart2_tx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart2_tx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart2_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart2_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart2_tx.Init.Mode = DMA_NORMAL;
    hdma_usart2_tx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_usart2_tx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
    hdma_usart2_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_HALFFULL;
    hdma_usart2_tx.Init.MemBurst = DMA_MBURST_SINGLE;
    hdma_usart2_tx.Init.PeriphBurst = DMA_PBURST_SINGLE;
    HAL_DMA_Init(&hdma_usart2_tx);

    __HAL_LINKDMA(huart,hdmatx,hdma_usart2_tx);

    hdma_usart2_rx.Instance = DMA1_Stream5;
    hdma_usart2_rx.Init.Channel = DMA_CHANNEL_4;
    hdma_usart2_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
    hdma_usart2_rx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart2_rx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart2_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart2_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart2_rx.Init.Mode = DMA_NORMAL;
    hdma_usart2_rx.Init.Priority = DMA_PRIORITY_LOW;
    hdma_usart2_rx.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
    hdma_usart2_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_HALFFULL;
    hdma_usart2_rx.Init.MemBurst = DMA_MBURST_SINGLE;
    hdma_usart2_rx.Init.PeriphBurst = DMA_PBURST_SINGLE;
    HAL_DMA_Init(&hdma_usart2_rx);

    __HAL_LINKDMA(huart,hdmarx,hdma_usart2_rx);

    /* Peripheral interrupt init*/
    HAL_NVIC_SetPriority(USART2_IRQn, 5, 0);
    HAL_NVIC_EnableIRQ(USART2_IRQn);
  /* USER CODE BEGIN USART2_MspInit 1 */

  /* USER CODE END USART2_MspInit 1 */
  }
}
void LBF_Conn_IOcfg_UserDefd(void)
{

GPIO_InitTypeDef GPIO_InitStruct;

   // ===== Header Pin #1 :  (i.e. PA10:  UART1_RX or user GPIO)  ===================

   if (HEADER_POS1_ASSIGN == Uart1_Rx)   // --- is UART ----------------------------
   {  

     /* Peripheral clock enable */
    __USART1_CLK_ENABLE();
  
    /**USART1 RX alternate function on PA10
    */
    GPIO_InitStruct.Pin = GPIO_PIN_10;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_MEDIUM;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

   }

   else   //---------------------------  PA10 is pure GPIO  ------------------------------
   {
       GPIO_InitStruct.Pin    = HEADER_POS1_PIN; 

       if (HEADER_POS1_ASSIGN == GPOut)   // is GPIO: OUT  (open-drain or std cmos)
       {  
          GPIO_InitStruct.Speed = GPIO_SPEED_MEDIUM;
          GPIO_InitStruct.Pull = GPIO_NOPULL;

          if (HEADER_POS1_GPIOTYPE == OpenDrain)   	
          {
              GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;
          }
          else   // (std cmos / default)                
	  {
              GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
	  }
       }

       else                                // is GPIO: IN  (pull-up/-down or no-pull) - default               
       {
          GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
          if (HEADER_POS1_GPIOTYPE == PUp)
          {
              GPIO_InitStruct.Pull =  GPIO_PULLUP;
          }
          else if (HEADER_POS1_GPIOTYPE == PDown)
          {
              GPIO_InitStruct.Pull =  GPIO_PULLDOWN;
          }
          else  // (NoPull / Default)
	  {
              GPIO_InitStruct.Pull = GPIO_NOPULL;
	  }
       }
       HAL_GPIO_Init(HEADER_POS1_PORT, &GPIO_InitStruct);
   }


   // ===== Header Pin #2 :  (i.e. PA9:  UART1_TX or user GPIO)  ===================

   if (HEADER_POS2_ASSIGN == Uart1_Tx)   // --- is UART ----------------------------
   {  

     /* Peripheral clock enable */
    __USART1_CLK_ENABLE();
  
    /**USART1 TX alternate function on PA9
    */
    GPIO_InitStruct.Pin = GPIO_PIN_9;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_MEDIUM;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

   }

   else   //---------------------------  PA9 is pure GPIO  ------------------------------
   {
       GPIO_InitStruct.Pin    = HEADER_POS2_PIN; 

       if (HEADER_POS2_ASSIGN == GPOut)   // is GPIO: OUT  (open-drain or std cmos)
       {  
          GPIO_InitStruct.Speed = GPIO_SPEED_MEDIUM;
          GPIO_InitStruct.Pull = GPIO_NOPULL;

          if (HEADER_POS2_GPIOTYPE == OpenDrain)   	
          {
              GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;
          }
          else   // (std cmos / default)                
	  {
              GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
	  }
       }

       else                                // is GPIO: IN  (pull-up/-down or no-pull) - default               
       {
          GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
          if (HEADER_POS2_GPIOTYPE == PUp)
          {
              GPIO_InitStruct.Pull =  GPIO_PULLUP;
          }
          else if (HEADER_POS2_GPIOTYPE == PDown)
          {
              GPIO_InitStruct.Pull =  GPIO_PULLDOWN;
          }
          else  // (NoPull / Default)
	  {
              GPIO_InitStruct.Pull = GPIO_NOPULL;
	  }
       }
       HAL_GPIO_Init(HEADER_POS2_PORT, &GPIO_InitStruct);
   }




}
Пример #20
0
void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{

  GPIO_InitTypeDef GPIO_InitStruct;
  if(huart->Instance==USART1)
  {
  /* USER CODE BEGIN USART1_MspInit 0 */

  /* USER CODE END USART1_MspInit 0 */
    /* Peripheral clock enable */
    __USART1_CLK_ENABLE();
  
    /**USART1 GPIO Configuration    
    PA10     ------> USART1_RX
    PA9     ------> USART1_TX 
    */
    GPIO_InitStruct.Pin = U1RX_Pin|U1TX_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /* 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 */
    __USART2_CLK_ENABLE();
  
    /**USART2 GPIO Configuration    
    PA1     ------> USART2_RTS
    PA2     ------> USART2_TX
    PA3     ------> USART2_RX 
    */
    GPIO_InitStruct.Pin = RS_ON232_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
    HAL_GPIO_Init(RS_ON232_GPIO_Port, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = RS_TX_Pin|RS_RX_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /* USER CODE BEGIN USART2_MspInit 1 */

  /* USER CODE END USART2_MspInit 1 */
  }
  else 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    
    PC11     ------> USART3_RX
    PC10     ------> USART3_TX 
    */
    GPIO_InitStruct.Pin = RS485_RX_Pin|RS485_TX_Pin;
    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(GPIOC, &GPIO_InitStruct);

  /* USER CODE BEGIN USART3_MspInit 1 */

  /* USER CODE END USART3_MspInit 1 */
  }

}
Пример #21
0
// assumes Init parameters have been set up correctly
STATIC bool uart_init2(pyb_uart_obj_t *uart_obj) {
    USART_TypeDef *UARTx;
    IRQn_Type irqn;
    uint32_t GPIO_Pin, GPIO_Pin2 = 0;
    uint8_t GPIO_AF_UARTx = 0;
    GPIO_TypeDef* GPIO_Port = NULL;
    GPIO_TypeDef* GPIO_Port2 = NULL;

    switch (uart_obj->uart_id) {
        #if defined(MICROPY_HW_UART1_PORT) && defined(MICROPY_HW_UART1_PINS)
        // USART1 is on PA9/PA10 (CK on PA8), PB6/PB7
        case PYB_UART_1:
            UARTx = USART1;
            irqn = USART1_IRQn;
            GPIO_AF_UARTx = GPIO_AF7_USART1;
            GPIO_Port = MICROPY_HW_UART1_PORT;
            GPIO_Pin = MICROPY_HW_UART1_PINS;
            __USART1_CLK_ENABLE();
            break;
        #endif

        #if defined(MICROPY_HW_UART1_TX_PORT) && \
            defined(MICROPY_HW_UART1_TX_PIN) && \
            defined(MICROPY_HW_UART1_RX_PORT) && \
            defined(MICROPY_HW_UART1_RX_PIN)
        case PYB_UART_1:
            UARTx = USART1;
            irqn = USART1_IRQn;
            GPIO_AF_UARTx = GPIO_AF7_USART1;
            GPIO_Port  = MICROPY_HW_UART1_TX_PORT;
            GPIO_Pin   = MICROPY_HW_UART1_TX_PIN;
            GPIO_Port2 = MICROPY_HW_UART1_RX_PORT;
            GPIO_Pin2  = MICROPY_HW_UART1_RX_PIN;
            __USART1_CLK_ENABLE();
            break;
        #endif

        #if defined(MICROPY_HW_UART2_PORT) && defined(MICROPY_HW_UART2_PINS)
        // USART2 is on PA2/PA3 (CTS,RTS,CK on PA0,PA1,PA4), PD5/PD6 (CK on PD7)
        case PYB_UART_2:
            UARTx = USART2;
            irqn = USART2_IRQn;
            GPIO_AF_UARTx = GPIO_AF7_USART2;
            GPIO_Port = MICROPY_HW_UART2_PORT;
            GPIO_Pin = MICROPY_HW_UART2_PINS;
            #if defined(MICROPY_HW_UART2_RTS)
            if (uart_obj->uart.Init.HwFlowCtl & UART_HWCONTROL_RTS) {
                GPIO_Pin |= MICROPY_HW_UART2_RTS;
            }
            #endif
            #if defined(MICROPY_HW_UART2_CTS)
            if (uart_obj->uart.Init.HwFlowCtl & UART_HWCONTROL_CTS) {
                GPIO_Pin |= MICROPY_HW_UART2_CTS;
            }
            #endif
            __USART2_CLK_ENABLE();
            break;
        #endif

        #if defined(USART3) && defined(MICROPY_HW_UART3_PORT) && defined(MICROPY_HW_UART3_PINS)
        // USART3 is on PB10/PB11 (CK,CTS,RTS on PB12,PB13,PB14), PC10/PC11 (CK on PC12), PD8/PD9 (CK on PD10)
        case PYB_UART_3:
            UARTx = USART3;
            irqn = USART3_IRQn;
            GPIO_AF_UARTx = GPIO_AF7_USART3;
            GPIO_Port = MICROPY_HW_UART3_PORT;
            GPIO_Pin = MICROPY_HW_UART3_PINS;
            #if defined(MICROPY_HW_UART3_RTS)
            if (uart_obj->uart.Init.HwFlowCtl & UART_HWCONTROL_RTS) {
                GPIO_Pin |= MICROPY_HW_UART3_RTS;
            }
            #endif
            #if defined(MICROPY_HW_UART3_CTS)
            if (uart_obj->uart.Init.HwFlowCtl & UART_HWCONTROL_CTS) {
                GPIO_Pin |= MICROPY_HW_UART3_CTS;
            }
            #endif
            __USART3_CLK_ENABLE();
            break;
        #endif

        #if defined(UART4) && defined(MICROPY_HW_UART4_PORT) && defined(MICROPY_HW_UART4_PINS)
        // UART4 is on PA0/PA1, PC10/PC11
        case PYB_UART_4:
            UARTx = UART4;
            irqn = UART4_IRQn;
            GPIO_AF_UARTx = GPIO_AF8_UART4;
            GPIO_Port = MICROPY_HW_UART4_PORT;
            GPIO_Pin = MICROPY_HW_UART4_PINS;
            __UART4_CLK_ENABLE();
            break;
        #endif

        #if defined(UART5) && \
            defined(MICROPY_HW_UART5_TX_PORT) && \
            defined(MICROPY_HW_UART5_TX_PIN) && \
            defined(MICROPY_HW_UART5_RX_PORT) && \
            defined(MICROPY_HW_UART5_RX_PIN)
        case PYB_UART_5:
            UARTx = UART5;
            irqn = UART5_IRQn;
            GPIO_AF_UARTx = GPIO_AF8_UART5;
            GPIO_Port = MICROPY_HW_UART5_TX_PORT;
            GPIO_Port2 = MICROPY_HW_UART5_RX_PORT;
            GPIO_Pin = MICROPY_HW_UART5_TX_PIN;
            GPIO_Pin2 = MICROPY_HW_UART5_RX_PIN;
            __UART5_CLK_ENABLE();
            break;
        #endif

        #if defined(MICROPY_HW_UART6_PORT) && defined(MICROPY_HW_UART6_PINS)
        // USART6 is on PC6/PC7 (CK on PC8)
        case PYB_UART_6:
            UARTx = USART6;
            irqn = USART6_IRQn;
            GPIO_AF_UARTx = GPIO_AF8_USART6;
            GPIO_Port = MICROPY_HW_UART6_PORT;
            GPIO_Pin = MICROPY_HW_UART6_PINS;
            __USART6_CLK_ENABLE();
            break;
        #endif

        default:
            // UART does not exist or is not configured for this board
            return false;
    }

    uart_obj->irqn = irqn;
    uart_obj->uart.Instance = UARTx;

    // init GPIO
    mp_hal_gpio_clock_enable(GPIO_Port);
    GPIO_InitTypeDef GPIO_InitStructure;
    GPIO_InitStructure.Pin = GPIO_Pin;
    GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStructure.Pull = GPIO_PULLUP;
    GPIO_InitStructure.Alternate = GPIO_AF_UARTx;
    HAL_GPIO_Init(GPIO_Port, &GPIO_InitStructure);

    // init GPIO for second pin if needed
    if (GPIO_Port2 != NULL) {
        mp_hal_gpio_clock_enable(GPIO_Port2);
        GPIO_InitStructure.Pin = GPIO_Pin2;
        HAL_GPIO_Init(GPIO_Port2, &GPIO_InitStructure);
    }

    // init UARTx
    HAL_UART_Init(&uart_obj->uart);

    uart_obj->is_enabled = true;

    return true;
}
Пример #22
0
void usart_init(pyb_usart_obj_t *usart_obj, uint32_t baudrate) {
    USART_TypeDef *USARTx=NULL;

    uint32_t GPIO_Pin=0;
    uint8_t  GPIO_AF_USARTx=0;
    GPIO_TypeDef* GPIO_Port=NULL;

    switch (usart_obj->usart_id) {
        case PYB_USART_NONE:
            return;

        case PYB_USART_1:
            USARTx = USART1;

            GPIO_Port = GPIOA;
            GPIO_AF_USARTx = GPIO_AF7_USART1;
            GPIO_Pin = GPIO_PIN_9 | GPIO_PIN_10;

            __USART1_CLK_ENABLE();
            break;
        case PYB_USART_2:
            USARTx = USART2;

            GPIO_Port = GPIOD;
            GPIO_AF_USARTx = GPIO_AF7_USART2;
            GPIO_Pin = GPIO_PIN_5 | GPIO_PIN_6;

            __USART2_CLK_ENABLE();
            break;
        case PYB_USART_3:
            USARTx = USART3;

#if defined(PYBV3) || defined(PYBV4)
            GPIO_Port = GPIOB;
            GPIO_AF_USARTx = GPIO_AF7_USART3;
            GPIO_Pin = GPIO_PIN_10 | GPIO_PIN_11;
#else
            GPIO_Port = GPIOD;
            GPIO_AF_USARTx = GPIO_AF7_USART3;
            GPIO_Pin = GPIO_PIN_8 | GPIO_PIN_9;
#endif
            __USART3_CLK_ENABLE();
            break;
        case PYB_USART_6:
            USARTx = USART6;

            GPIO_Port = GPIOC;
            GPIO_AF_USARTx = GPIO_AF8_USART6;
            GPIO_Pin = GPIO_PIN_6 | GPIO_PIN_7;

            __USART6_CLK_ENABLE();
            break;
    }

    // Initialize USARTx

    GPIO_InitTypeDef GPIO_InitStructure;
    GPIO_InitStructure.Pin = GPIO_Pin;
    GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStructure.Pull = GPIO_PULLUP;
    GPIO_InitStructure.Alternate = GPIO_AF_USARTx;
    HAL_GPIO_Init(GPIO_Port, &GPIO_InitStructure);

    UART_HandleTypeDef *uh = &usart_obj->handle;
    memset(uh, 0, sizeof(*uh));
    uh->Instance = USARTx;
    uh->Init.BaudRate = baudrate;
    uh->Init.WordLength = USART_WORDLENGTH_8B;
    uh->Init.StopBits = USART_STOPBITS_1;
    uh->Init.Parity = USART_PARITY_NONE;
    uh->Init.Mode = USART_MODE_TX_RX;
    uh->Init.HwFlowCtl = UART_HWCONTROL_NONE;
    uh->Init.OverSampling = UART_OVERSAMPLING_16;
    HAL_UART_Init(uh);
}
Пример #23
0
// assumes Init parameters have been set up correctly
STATIC bool uart_init2(pyb_uart_obj_t *uart_obj) {
    USART_TypeDef *UARTx;
    IRQn_Type irqn;
    int uart_unit;

    const pin_obj_t *pins[4] = {0};

    switch (uart_obj->uart_id) {
        #if defined(MICROPY_HW_UART1_TX) && defined(MICROPY_HW_UART1_RX)
        case PYB_UART_1:
            uart_unit = 1;
            UARTx = USART1;
            irqn = USART1_IRQn;
            pins[0] = &MICROPY_HW_UART1_TX;
            pins[1] = &MICROPY_HW_UART1_RX;
            __USART1_CLK_ENABLE();
            break;
        #endif

        #if defined(MICROPY_HW_UART2_TX) && defined(MICROPY_HW_UART2_RX)
        case PYB_UART_2:
            uart_unit = 2;
            UARTx = USART2;
            irqn = USART2_IRQn;
            pins[0] = &MICROPY_HW_UART2_TX;
            pins[1] = &MICROPY_HW_UART2_RX;
            #if defined(MICROPY_HW_UART2_RTS)
            if (uart_obj->uart.Init.HwFlowCtl & UART_HWCONTROL_RTS) {
                pins[2] = &MICROPY_HW_UART2_RTS;
            }
            #endif
            #if defined(MICROPY_HW_UART2_CTS)
            if (uart_obj->uart.Init.HwFlowCtl & UART_HWCONTROL_CTS) {
                pins[3] = &MICROPY_HW_UART2_CTS;
            }
            #endif
            __USART2_CLK_ENABLE();
            break;
        #endif

        #if defined(MICROPY_HW_UART3_TX) && defined(MICROPY_HW_UART3_RX)
        case PYB_UART_3:
            uart_unit = 3;
            UARTx = USART3;
            irqn = USART3_IRQn;
            pins[0] = &MICROPY_HW_UART3_TX;
            pins[1] = &MICROPY_HW_UART3_RX;
            #if defined(MICROPY_HW_UART3_RTS)
            if (uart_obj->uart.Init.HwFlowCtl & UART_HWCONTROL_RTS) {
                pins[2] = &MICROPY_HW_UART3_RTS;
            }
            #endif
            #if defined(MICROPY_HW_UART3_CTS)
            if (uart_obj->uart.Init.HwFlowCtl & UART_HWCONTROL_CTS) {
                pins[3] = &MICROPY_HW_UART3_CTS;
            }
            #endif
            __USART3_CLK_ENABLE();
            break;
        #endif

        #if defined(MICROPY_HW_UART4_TX) && defined(MICROPY_HW_UART4_RX)
        case PYB_UART_4:
            uart_unit = 4;
            UARTx = UART4;
            irqn = UART4_IRQn;
            pins[0] = &MICROPY_HW_UART4_TX;
            pins[1] = &MICROPY_HW_UART4_RX;
            __UART4_CLK_ENABLE();
            break;
        #endif

        #if defined(MICROPY_HW_UART5_TX) && defined(MICROPY_HW_UART5_RX)
        case PYB_UART_5:
            uart_unit = 5;
            UARTx = UART5;
            irqn = UART5_IRQn;
            pins[0] = &MICROPY_HW_UART5_TX;
            pins[1] = &MICROPY_HW_UART5_RX;
            __UART5_CLK_ENABLE();
            break;
        #endif

        #if defined(MICROPY_HW_UART6_TX) && defined(MICROPY_HW_UART6_RX)
        case PYB_UART_6:
            uart_unit = 6;
            UARTx = USART6;
            irqn = USART6_IRQn;
            pins[0] = &MICROPY_HW_UART6_TX;
            pins[1] = &MICROPY_HW_UART6_RX;
            #if defined(MICROPY_HW_UART6_RTS)
            if (uart_obj->uart.Init.HwFlowCtl & UART_HWCONTROL_RTS) {
                pins[2] = &MICROPY_HW_UART6_RTS;
            }
            #endif
            #if defined(MICROPY_HW_UART6_CTS)
            if (uart_obj->uart.Init.HwFlowCtl & UART_HWCONTROL_CTS) {
                pins[3] = &MICROPY_HW_UART6_CTS;
            }
            #endif
            __USART6_CLK_ENABLE();
            break;
        #endif

        #if defined(MICROPY_HW_UART7_TX) && defined(MICROPY_HW_UART7_RX)
        case PYB_UART_7:
            uart_unit = 7;
            UARTx = UART7;
            irqn = UART7_IRQn;
            pins[0] = &MICROPY_HW_UART7_TX;
            pins[1] = &MICROPY_HW_UART7_RX;
            __UART7_CLK_ENABLE();
            break;
        #endif

        #if defined(MICROPY_HW_UART8_TX) && defined(MICROPY_HW_UART8_RX)
        case PYB_UART_8:
            uart_unit = 8;
            UARTx = UART8;
            irqn = UART8_IRQn;
            pins[0] = &MICROPY_HW_UART8_TX;
            pins[1] = &MICROPY_HW_UART8_RX;
            __UART8_CLK_ENABLE();
            break;
        #endif

        default:
            // UART does not exist or is not configured for this board
            return false;
    }

    uint32_t mode = MP_HAL_PIN_MODE_ALT;
    uint32_t pull = MP_HAL_PIN_PULL_UP;

    for (uint i = 0; i < 4; i++) {
        if (pins[i] != NULL) {
            bool ret = mp_hal_pin_config_alt(pins[i], mode, pull, AF_FN_UART, uart_unit);
            if (!ret) {
                return false;
            }
        }
    }

    uart_obj->irqn = irqn;
    uart_obj->uart.Instance = UARTx;

    // init UARTx
    HAL_UART_Init(&uart_obj->uart);

    uart_obj->is_enabled = true;

    return true;
}
Пример #24
0
void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{

    GPIO_InitTypeDef GPIO_InitStruct;
    if(huart->Instance==USART1)
    {
        /* USER CODE BEGIN USART1_MspInit 0 */

        /* USER CODE END USART1_MspInit 0 */
        /* Peripheral clock enable */
        __USART1_CLK_ENABLE();

        /**USART1 GPIO Configuration
        PA9     ------> USART1_TX
        PA10     ------> USART1_RX
        */
        GPIO_InitStruct.Pin = GPIO_PIN_9;
        GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
        GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

        GPIO_InitStruct.Pin = GPIO_PIN_10;
        GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
        GPIO_InitStruct.Pull = GPIO_NOPULL;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

        /* 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 */
        __USART2_CLK_ENABLE();

        /**USART2 GPIO Configuration
        PA2     ------> USART2_TX
        PA3     ------> USART2_RX
        */
        GPIO_InitStruct.Pin = GPIO_PIN_2;
        GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
        GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

        GPIO_InitStruct.Pin = GPIO_PIN_3;
        GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
        GPIO_InitStruct.Pull = GPIO_NOPULL;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

        /* Peripheral interrupt init*/
        HAL_NVIC_SetPriority(USART2_IRQn, 0, 0);
        HAL_NVIC_EnableIRQ(USART2_IRQn);
        /* USER CODE BEGIN USART2_MspInit 1 */

        /* USER CODE END USART2_MspInit 1 */
    }

}
Пример #25
0
// assumes Init parameters have been set up correctly
STATIC bool uart_init2(pyb_uart_obj_t *uart_obj) {
    USART_TypeDef *UARTx;
    IRQn_Type irqn;
    uint32_t GPIO_Pin;
    uint8_t GPIO_AF_UARTx = 0;
    GPIO_TypeDef* GPIO_Port = NULL;

    switch (uart_obj->uart_id) {
        // USART1 is on PA9/PA10 (CK on PA8), PB6/PB7
        case PYB_UART_1:
            UARTx = USART1;
            irqn = USART1_IRQn;
            GPIO_AF_UARTx = GPIO_AF7_USART1;

#if defined (PYBV4) || defined(PYBV10)
            GPIO_Port = GPIOB;
            GPIO_Pin = GPIO_PIN_6 | GPIO_PIN_7;
#else
            GPIO_Port = GPIOA;
            GPIO_Pin = GPIO_PIN_9 | GPIO_PIN_10;
#endif

            __USART1_CLK_ENABLE();
            break;

        // USART2 is on PA2/PA3 (CTS,RTS,CK on PA0,PA1,PA4), PD5/PD6 (CK on PD7)
        case PYB_UART_2:
            UARTx = USART2;
            irqn = USART2_IRQn;
            GPIO_AF_UARTx = GPIO_AF7_USART2;

            GPIO_Port = GPIOA;
            GPIO_Pin = GPIO_PIN_2 | GPIO_PIN_3;

            if (uart_obj->uart.Init.HwFlowCtl & UART_HWCONTROL_RTS) {
                GPIO_Pin |= GPIO_PIN_1;
            }
            if (uart_obj->uart.Init.HwFlowCtl & UART_HWCONTROL_CTS) {
                GPIO_Pin |= GPIO_PIN_0;
            }

            __USART2_CLK_ENABLE();
            break;

        // USART3 is on PB10/PB11 (CK,CTS,RTS on PB12,PB13,PB14), PC10/PC11 (CK on PC12), PD8/PD9 (CK on PD10)
        case PYB_UART_3:
            UARTx = USART3;
            irqn = USART3_IRQn;
            GPIO_AF_UARTx = GPIO_AF7_USART3;

#if defined(PYBV3) || defined(PYBV4) | defined(PYBV10)
            GPIO_Port = GPIOB;
            GPIO_Pin = GPIO_PIN_10 | GPIO_PIN_11;

            if (uart_obj->uart.Init.HwFlowCtl & UART_HWCONTROL_RTS) {
                GPIO_Pin |= GPIO_PIN_14;
            }
            if (uart_obj->uart.Init.HwFlowCtl & UART_HWCONTROL_CTS) {
                GPIO_Pin |= GPIO_PIN_13;
            }
#else
            GPIO_Port = GPIOD;
            GPIO_Pin = GPIO_PIN_8 | GPIO_PIN_9;
#endif
            __USART3_CLK_ENABLE();
            break;

        // UART4 is on PA0/PA1, PC10/PC11
        case PYB_UART_4:
            UARTx = UART4;
            irqn = UART4_IRQn;
            GPIO_AF_UARTx = GPIO_AF8_UART4;

            GPIO_Port = GPIOA;
            GPIO_Pin = GPIO_PIN_0 | GPIO_PIN_1;

            __UART4_CLK_ENABLE();
            break;

        // USART6 is on PC6/PC7 (CK on PC8)
        case PYB_UART_6:
            UARTx = USART6;
            irqn = USART6_IRQn;
            GPIO_AF_UARTx = GPIO_AF8_USART6;

            GPIO_Port = GPIOC;
            GPIO_Pin = GPIO_PIN_6 | GPIO_PIN_7;

            __USART6_CLK_ENABLE();
            break;

        default:
            return false;
    }

    uart_obj->irqn = irqn;
    uart_obj->uart.Instance = UARTx;

    // init GPIO
    GPIO_InitTypeDef GPIO_InitStructure;
    GPIO_InitStructure.Pin = GPIO_Pin;
    GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStructure.Pull = GPIO_PULLUP;
    GPIO_InitStructure.Alternate = GPIO_AF_UARTx;
    HAL_GPIO_Init(GPIO_Port, &GPIO_InitStructure);

    // init UARTx
    HAL_UART_Init(&uart_obj->uart);

    uart_obj->is_enabled = true;

    return true;
}
Пример #26
0
void serial_init(serial_t *obj, PinName tx, PinName rx)
{
    struct serial_s *obj_s = SERIAL_S(obj);
    
    // Determine the UART to use (UART_1, UART_2, ...)
    UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
    UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);

    // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
    obj_s->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
    MBED_ASSERT(obj_s->uart != (UARTName)NC);

    // Enable USART clock + switch to SystemClock
    if (obj_s->uart == UART_1) {
        __USART1_FORCE_RESET();
        __USART1_RELEASE_RESET();
        __USART1_CLK_ENABLE();
#if defined(RCC_USART1CLKSOURCE_SYSCLK) 
        __HAL_RCC_USART1_CONFIG(RCC_USART1CLKSOURCE_SYSCLK);
#endif
        obj_s->index = 0;
    }
#if defined(USART2_BASE)
    if (obj_s->uart == UART_2) {
        __USART2_FORCE_RESET();
        __USART2_RELEASE_RESET();
        __USART2_CLK_ENABLE();
#if defined(RCC_USART2CLKSOURCE_SYSCLK)
        __HAL_RCC_USART2_CONFIG(RCC_USART2CLKSOURCE_SYSCLK);
#endif
        obj_s->index = 1;
    }
#endif
#if defined(USART3_BASE)
    if (obj_s->uart == UART_3) {
        __USART3_FORCE_RESET();
        __USART3_RELEASE_RESET();
        __USART3_CLK_ENABLE();
#if defined(RCC_USART3CLKSOURCE_SYSCLK)
        __HAL_RCC_USART3_CONFIG(RCC_USART3CLKSOURCE_SYSCLK);
#endif
        obj_s->index = 2;
    }
#endif
#if defined(UART4_BASE)
    if (obj_s->uart == UART_4) {
        __UART4_FORCE_RESET();
        __UART4_RELEASE_RESET();
        __UART4_CLK_ENABLE();
#if defined(RCC_UART4CLKSOURCE_SYSCLK)
        __HAL_RCC_UART4_CONFIG(RCC_UART4CLKSOURCE_SYSCLK);
#endif
        obj_s->index = 3;
    }
#endif
#if defined(UART5_BASE)
    if (obj_s->uart == UART_5) {
        __HAL_RCC_UART5_FORCE_RESET();
        __HAL_RCC_UART5_RELEASE_RESET();
        __UART5_CLK_ENABLE();
#if defined(RCC_UART5CLKSOURCE_SYSCLK)
        __HAL_RCC_UART5_CONFIG(RCC_UART5CLKSOURCE_SYSCLK);
#endif
        obj_s->index = 4;
    }
#endif

    // Configure the UART pins
    pinmap_pinout(tx, PinMap_UART_TX);
    pinmap_pinout(rx, PinMap_UART_RX);
    
    if (tx != NC) {
        pin_mode(tx, PullUp);
    }
    if (rx != NC) {
        pin_mode(rx, PullUp);
    }

    // Configure UART
    obj_s->baudrate = 9600;
    obj_s->databits = UART_WORDLENGTH_8B;
    obj_s->stopbits = UART_STOPBITS_1;
    obj_s->parity   = UART_PARITY_NONE;

#if DEVICE_SERIAL_FC
    obj_s->hw_flow_ctl = UART_HWCONTROL_NONE;
#endif

    obj_s->pin_tx = tx;
    obj_s->pin_rx = rx;

    init_uart(obj);

    // For stdio management
    if (obj_s->uart == STDIO_UART) {
        stdio_uart_inited = 1;
        memcpy(&stdio_uart, obj, sizeof(serial_t));
    }
}
Пример #27
0
// assumes Init parameters have been set up correctly
bool uart_init2(pyb_uart_obj_t *uart_obj) {
#if 0
    USART_TypeDef *UARTx = NULL;

    uint32_t GPIO_Pin = 0;
    uint8_t  GPIO_AF_UARTx = 0;
    GPIO_TypeDef* GPIO_Port = NULL;

    switch (uart_obj->uart_id) {
        // USART1 is on PA9/PA10 (CK on PA8), PB6/PB7
        case PYB_UART_1:
            UARTx = USART1;
            GPIO_AF_UARTx = GPIO_AF7_USART1;

#if defined (PYBV4) || defined(PYBV10)
            GPIO_Port = GPIOB;
            GPIO_Pin = GPIO_PIN_6 | GPIO_PIN_7;
#else
            GPIO_Port = GPIOA;
            GPIO_Pin = GPIO_PIN_9 | GPIO_PIN_10;
#endif

            __USART1_CLK_ENABLE();
            break;

        // USART2 is on PA2/PA3 (CK on PA4), PD5/PD6 (CK on PD7)
        case PYB_UART_2:
            UARTx = USART2;
            GPIO_AF_UARTx = GPIO_AF7_USART2;

            GPIO_Port = GPIOA;
            GPIO_Pin = GPIO_PIN_2 | GPIO_PIN_3;

            __USART2_CLK_ENABLE();
            break;

        // USART3 is on PB10/PB11 (CK on PB12), PC10/PC11 (CK on PC12), PD8/PD9 (CK on PD10)
        case PYB_UART_3:
            UARTx = USART3;
            GPIO_AF_UARTx = GPIO_AF7_USART3;

#if defined(PYBV3) || defined(PYBV4) | defined(PYBV10)
            GPIO_Port = GPIOB;
            GPIO_Pin = GPIO_PIN_10 | GPIO_PIN_11;
#else
            GPIO_Port = GPIOD;
            GPIO_Pin = GPIO_PIN_8 | GPIO_PIN_9;
#endif
            __USART3_CLK_ENABLE();
            break;

        // UART4 is on PA0/PA1, PC10/PC11
        case PYB_UART_4:
            UARTx = UART4;
            GPIO_AF_UARTx = GPIO_AF8_UART4;

            GPIO_Port = GPIOA;
            GPIO_Pin = GPIO_PIN_0 | GPIO_PIN_1;

            __UART4_CLK_ENABLE();
            break;

        // USART6 is on PC6/PC7 (CK on PC8)
        case PYB_UART_6:
            UARTx = USART6;
            GPIO_AF_UARTx = GPIO_AF8_USART6;

            GPIO_Port = GPIOC;
            GPIO_Pin = GPIO_PIN_6 | GPIO_PIN_7;

            __USART6_CLK_ENABLE();
            break;

        default:
            return false;
    }

    // init GPIO
    GPIO_InitTypeDef GPIO_InitStructure;
    GPIO_InitStructure.Pin = GPIO_Pin;
    GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStructure.Pull = GPIO_PULLUP;
    GPIO_InitStructure.Alternate = GPIO_AF_UARTx;
    HAL_GPIO_Init(GPIO_Port, &GPIO_InitStructure);

    // init UARTx
    uart_obj->uart.Instance = UARTx;
    HAL_UART_Init(&uart_obj->uart);

    uart_obj->is_enabled = true;
#endif
    return true;
}
Пример #28
0
void serial_init(serial_t *obj, PinName tx, PinName rx) {
    // Determine the UART to use (UART_1, UART_2, ...)
    UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
    UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);

    // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
    obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
    MBED_ASSERT(obj->uart != (UARTName)NC);

    // Enable USART clock
    switch (obj->uart) {
        case UART_1:
            __USART1_CLK_ENABLE();
            obj->index = 0;
            break;
        case UART_2:
            __USART2_CLK_ENABLE();
            obj->index = 1;
            break;
        case UART_3:
            __USART3_CLK_ENABLE();
            obj->index = 2;
            break;
        case UART_4:
            __UART4_CLK_ENABLE();
            obj->index = 3;
            break;
        case UART_5:
            __UART5_CLK_ENABLE();
            obj->index = 4;
            break;
        case UART_6:
            __USART6_CLK_ENABLE();
            obj->index = 5;
            break;
    }

    // Configure the UART pins
    pinmap_pinout(tx, PinMap_UART_TX);
    pinmap_pinout(rx, PinMap_UART_RX);
    if (tx != NC) {
        pin_mode(tx, PullUp);
    }
    if (rx != NC) {
        pin_mode(rx, PullUp);
    }

    // Configure UART
    obj->baudrate = 9600;
    obj->databits = UART_WORDLENGTH_8B;
    obj->stopbits = UART_STOPBITS_1;
    obj->parity   = UART_PARITY_NONE;

    obj->pin_tx = tx;
    obj->pin_rx = rx;

    init_uart(obj);

    // For stdio management
    if (obj->uart == STDIO_UART) {
        stdio_uart_inited = 1;
        memcpy(&stdio_uart, obj, sizeof(serial_t));
    }

}
Пример #29
0
/**
  * @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)
{  
  GPIO_InitTypeDef  GPIO_InitStruct;
  
  switch((uint32_t)huart->Instance)
  {
  case (uint32_t)USART1 :
    {
      /*##-1- Enable peripherals and GPIO Clocks #################################*/
      /* Enable GPIO TX/RX clock */
      __GPIOA_CLK_ENABLE();
      /* Enable USARTx clock */
      __USART1_CLK_ENABLE(); 
      
      /*##-2- Configure peripheral GPIO ##########################################*/  
      /* UART TX GPIO pin configuration  */
      GPIO_InitStruct.Pin       = GPIO_PIN_9 | GPIO_PIN_10;
      GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull      = GPIO_PULLUP;
      GPIO_InitStruct.Speed     = GPIO_SPEED_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF1_USART1;
      HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
      
      /*##-3- Configure the NVIC for UART ########################################*/
      /* NVIC for USART */
      HAL_NVIC_SetPriority(USART1_IRQn, 1, 0);
      HAL_NVIC_EnableIRQ(USART1_IRQn);
    }
    break;
  case (uint32_t)USART2 :
    {
      /*##-1- Enable peripherals and GPIO Clocks #################################*/
      /* Enable GPIO TX/RX clock */
      __GPIOD_CLK_ENABLE();
      /* Enable USARTx clock */
      __USART2_CLK_ENABLE(); 
      
      /*##-2- Configure peripheral GPIO ##########################################*/  
      /* UART TX GPIO pin configuration  */
      GPIO_InitStruct.Pin       = GPIO_PIN_6 | GPIO_PIN_5;
      GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull      = GPIO_PULLUP;
      GPIO_InitStruct.Speed     = GPIO_SPEED_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF0_USART2;
      
      HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
      
      /*##-3- Configure the NVIC for UART ########################################*/
      /* NVIC for USART */
      HAL_NVIC_SetPriority(USART2_IRQn, 1, 0);
      HAL_NVIC_EnableIRQ(USART2_IRQn);
    }
    break;
  case (uint32_t)USART3 :
    {
      /*##-1- Enable peripherals and GPIO Clocks #################################*/
      /* Enable GPIO TX/RX clock */
      __GPIOD_CLK_ENABLE();
      /* To allow the IT source identification */
      __SYSCFG_CLK_ENABLE();      
      /* Enable USARTx clock */
      __USART3_CLK_ENABLE(); 
      
      /*##-2- Configure peripheral GPIO ##########################################*/  
      /* UART TX GPIO pin configuration  */
      GPIO_InitStruct.Pin       = GPIO_PIN_8 | GPIO_PIN_9;
      GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull      = GPIO_PULLUP;
      GPIO_InitStruct.Speed     = GPIO_SPEED_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF0_USART3;
      HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
      
      /*##-3- Configure the NVIC for UART ########################################*/
      /* NVIC for USART */
      HAL_NVIC_SetPriority(USART3_8_IRQn, 0, 0);
      HAL_NVIC_EnableIRQ(USART3_8_IRQn);
    }
    break;
  case (uint32_t)USART4 :
    {
      /*##-1- Enable peripherals and GPIO Clocks #################################*/
      /* Enable GPIO TX/RX clock */
      __GPIOC_CLK_ENABLE();
      /* To allow the IT source identification */
      __SYSCFG_CLK_ENABLE();
      
      /* Enable USARTx clock */
      __USART4_CLK_ENABLE(); 
      
      /*##-2- Configure peripheral GPIO ##########################################*/  
      /* UART TX GPIO pin configuration  */
      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_AF0_USART4;
      HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

      /*##-3- Configure the NVIC for UART ########################################*/
      /* NVIC for USART */
      HAL_NVIC_SetPriority(USART3_8_IRQn, 0, 0);
      HAL_NVIC_EnableIRQ(USART3_8_IRQn);
    }
    break;
  case (uint32_t)USART5 :
    {
      /*##-1- Enable peripherals and GPIO Clocks #################################*/
      /* Enable GPIO TX/RX clock */
      __GPIOB_CLK_ENABLE();
      /* To allow the IT source identification */
      __SYSCFG_CLK_ENABLE();      
      /* Enable USARTx clock */
      __USART5_CLK_ENABLE(); 
      
      /*##-2- Configure peripheral GPIO ##########################################*/  
      /* UART TX GPIO pin configuration  */
      GPIO_InitStruct.Pin       = GPIO_PIN_3 | GPIO_PIN_4;
      GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull      = GPIO_PULLUP;
      GPIO_InitStruct.Speed     = GPIO_SPEED_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF4_USART5;
      HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
      
      /*##-3- Configure the NVIC for UART ########################################*/
      /* NVIC for USART */
      HAL_NVIC_SetPriority(USART3_8_IRQn, 0, 0);
      HAL_NVIC_EnableIRQ(USART3_8_IRQn);
    }
    break;
  case (uint32_t)USART6 :
    {
      /*##-1- Enable peripherals and GPIO Clocks #################################*/
      /* Enable GPIO TX/RX clock */
      __GPIOF_CLK_ENABLE();
      /* To allow the IT source identification */
      __SYSCFG_CLK_ENABLE();      
      /* Enable USARTx clock */
      __USART6_CLK_ENABLE(); 
      
      /*##-2- Configure peripheral GPIO ##########################################*/  
      /* UART TX GPIO pin configuration  */
      GPIO_InitStruct.Pin       = GPIO_PIN_9 | GPIO_PIN_10;
      GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull      = GPIO_PULLUP;
      GPIO_InitStruct.Speed     = GPIO_SPEED_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF1_USART6;  
      HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
      
      /*##-3- Configure the NVIC for UART ########################################*/
      /* NVIC for USART */
      HAL_NVIC_SetPriority(USART3_8_IRQn, 0, 0);
      HAL_NVIC_EnableIRQ(USART3_8_IRQn);
    }
    break;
  case (uint32_t)USART7 :
    {
      /*##-1- Enable peripherals and GPIO Clocks #################################*/
      /* Enable GPIO TX/RX clock */
      __GPIOF_CLK_ENABLE();
      /* To allow the IT source identification */
      __SYSCFG_CLK_ENABLE();
      /* Enable USARTx clock */
      __USART7_CLK_ENABLE(); 
      
      /*##-2- Configure peripheral GPIO ##########################################*/  
      /* UART TX GPIO pin configuration  */
      GPIO_InitStruct.Pin       = GPIO_PIN_3 | GPIO_PIN_2;
      GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull      = GPIO_PULLUP;
      GPIO_InitStruct.Speed     = GPIO_SPEED_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF1_USART7;
      HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
      
      /*##-3- Configure the NVIC for UART ########################################*/
      /* NVIC for USART */
      HAL_NVIC_SetPriority(USART3_8_IRQn, 0, 0);
      HAL_NVIC_EnableIRQ(USART3_8_IRQn);
    }
    break;
  case (uint32_t)USART8 :
    {
      /*##-1- Enable peripherals and GPIO Clocks #################################*/
      /* Enable GPIO TX/RX clock */
      __GPIOC_CLK_ENABLE();
      /* To allow the IT source identification */
      __SYSCFG_CLK_ENABLE();      
      /* Enable USARTx clock */
      __USART8_CLK_ENABLE(); 
      
      /*##-2- Configure peripheral GPIO ##########################################*/  
      /* UART TX GPIO pin configuration  */
      GPIO_InitStruct.Pin       = GPIO_PIN_8 | GPIO_PIN_9;
      GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull      = GPIO_PULLUP;
      GPIO_InitStruct.Speed     = GPIO_SPEED_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF1_USART8;     
      HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
      
      /*##-3- Configure the NVIC for UART ########################################*/
      /* NVIC for USART */
      HAL_NVIC_SetPriority(USART3_8_IRQn, 1, 0);
      HAL_NVIC_EnableIRQ(USART3_8_IRQn);
    }
    break;
  }
}
/**
  * @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)
{  
  if (huart->Instance == USART2) {
    GPIO_InitTypeDef  GPIO_InitStruct;
    
    /*##-1- Enable peripherals and GPIO Clocks #################################*/
    /* Enable GPIO TX/RX clock */
    USART2_TX_GPIO_CLK_ENABLE();
    USART2_RX_GPIO_CLK_ENABLE();

    /* Enable USART2 clock */
    __USART2_CLK_ENABLE();
    
    /*##-2- Configure peripheral GPIO ##########################################*/  
    /* UART TX GPIO pin configuration  */
    GPIO_InitStruct.Pin       = USART2_TX_PIN;
    GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull      = GPIO_PULLUP;
    GPIO_InitStruct.Speed     = GPIO_SPEED_FAST;
    GPIO_InitStruct.Alternate = USART2_TX_AF;
    HAL_GPIO_Init(USART2_TX_PORT, &GPIO_InitStruct);
      
    /* UART RX GPIO pin configuration  */
    GPIO_InitStruct.Pin = USART2_RX_PIN;
    GPIO_InitStruct.Alternate = USART2_RX_AF;
    HAL_GPIO_Init(USART2_RX_PORT, &GPIO_InitStruct);

    /* Enable RXNE interrupt */
    __HAL_UART_ENABLE_IT(huart, UART_IT_RXNE);
    NVIC_SetPriority(USART2_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY + 3);
    NVIC_EnableIRQ(USART2_IRQn);
    
  }  else if (huart->Instance==USART6) {
    GPIO_InitTypeDef  GPIO_InitStruct;
      
    /* Peripheral clock enable */
    __USART6_CLK_ENABLE();
    USART6_TX_GPIO_CLK_ENABLE();
    USART6_RX_GPIO_CLK_ENABLE();
  
    /* USART6 GPIO Configuration */
    /* TODO: Temproray fix to disable USART6 TX pin. I made a mistake to
       swap the TX and RX pin for the MPU6050 module... */
    GPIO_InitStruct.Pin = USART6_TX_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_INPUT; //GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL; //GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
    GPIO_InitStruct.Alternate = 0; //USART6_TX_AF;
    HAL_GPIO_Init(USART6_TX_PORT, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = USART6_RX_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
    GPIO_InitStruct.Alternate = USART6_RX_AF;
    HAL_GPIO_Init(USART6_RX_PORT, &GPIO_InitStruct);

  } else if (huart->Instance==USART1) {
    GPIO_InitTypeDef  GPIO_InitStruct;
      
    /* Peripheral clock enable */
    __USART1_CLK_ENABLE();
    USART1_TX_GPIO_CLK_ENABLE();
    USART1_RX_GPIO_CLK_ENABLE();
  
    /* USART1 GPIO Configuration */
    GPIO_InitStruct.Pin = USART1_TX_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
    GPIO_InitStruct.Alternate = USART1_TX_AF;
    HAL_GPIO_Init(USART1_TX_PORT, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = USART1_RX_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
    GPIO_InitStruct.Alternate = USART1_RX_AF;
    HAL_GPIO_Init(USART1_RX_PORT, &GPIO_InitStruct);
  }
}