text: /**
    ******************************************************************************
    * File Name          : USART.c
    * Description        : This file provides code for the configuration
    *                      of the USART instances.
    ******************************************************************************
    ** This notice applies to any and all portions of this file
    * that are not between comment pairs USER CODE BEGIN and
    * USER CODE END. Other portions of this file, whether 
    * inserted by the user or by software development tools
    * are owned by their respective copyright owners.
    *
    * COPYRIGHT(c) 2018 STMicroelectronics
    *
    * Redistribution and use in source and binary forms, with or without modification,
    * are permitted provided that the following conditions are met:
    *   1. Redistributions of source code must retain the above copyright notice,
    *      this list of conditions and the following disclaimer.
    *   2. Redistributions in binary form must reproduce the above copyright notice,
    *      this list of conditions and the following disclaimer in the documentation
    *      and/or other materials provided with the distribution.
    *   3. Neither the name of STMicroelectronics nor the names of its contributors
    *      may be used to endorse or promote products derived from this software
    *      without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
    * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
    * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    ******************************************************************************
    */
  
  /* Includes ------------------------------------------------------------------*/
  #include "usart.h"
  #include "stm32l4xx_hal.h"
  #include "aos/hal/gpio.h"
  #include "dma.h"
  
  /* USER CODE BEGIN 0 */
  
  /* USER CODE END 0 */
  
  UART_HandleTypeDef hlpuart1;
  UART_HandleTypeDef huart4;
  UART_HandleTypeDef huart2;
  UART_HandleTypeDef huart3;
  DMA_HandleTypeDef hdma_usart2_rx;
  DMA_HandleTypeDef hdma_usart2_tx;
  DMA_HandleTypeDef hdma_usart3_rx;
  DMA_HandleTypeDef hdma_usart3_tx;
  
  /* LPUART1 init function */
  
  void MX_LPUART1_UART_Init(void)
  {
  
    hlpuart1.Instance = LPUART1;
    hlpuart1.Init.BaudRate = 115200;
    hlpuart1.Init.WordLength = UART_WORDLENGTH_8B;
    hlpuart1.Init.StopBits = UART_STOPBITS_1;
    hlpuart1.Init.Parity = UART_PARITY_NONE;
    hlpuart1.Init.Mode = UART_MODE_TX_RX;
    hlpuart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
    hlpuart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
    hlpuart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
    if (HAL_UART_Init(&hlpuart1) != HAL_OK)
    {
      _Error_Handler(__FILE__, __LINE__);
    }
  
  }
  /* UART4 init function */
  void MX_UART4_Init(void)
  {
  
    huart4.Instance = UART4;
    huart4.Init.BaudRate = 115200;
    huart4.Init.WordLength = UART_WORDLENGTH_8B;
    huart4.Init.StopBits = UART_STOPBITS_1;
    huart4.Init.Parity = UART_PARITY_NONE;
    huart4.Init.Mode = UART_MODE_TX_RX;
    huart4.Init.HwFlowCtl = UART_HWCONTROL_NONE;
    huart4.Init.OverSampling = UART_OVERSAMPLING_16;
    huart4.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
    huart4.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
    if (HAL_UART_Init(&huart4) != HAL_OK)
    {
      _Error_Handler(__FILE__, __LINE__);
    }
  
  }
  /* USART2 init function */
  
  void MX_USART2_UART_Init(void)
  {
  
    huart2.Instance = USART2;
    huart2.Init.BaudRate = 115200;
    huart2.Init.WordLength = UART_WORDLENGTH_8B;
    huart2.Init.StopBits = UART_STOPBITS_1;
    huart2.Init.Parity = UART_PARITY_NONE;
    huart2.Init.Mode = UART_MODE_TX_RX;
    huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
    huart2.Init.OverSampling = UART_OVERSAMPLING_16;
    huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
    huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
    if (HAL_UART_Init(&huart2) != HAL_OK)
    {
      _Error_Handler(__FILE__, __LINE__);
    }
  
  }
  /* USART3 init function */
  
  void MX_USART3_UART_Init(void)
  {
  
    huart3.Instance = USART3;
    huart3.Init.BaudRate = 115200;
    huart3.Init.WordLength = UART_WORDLENGTH_8B;
    huart3.Init.StopBits = UART_STOPBITS_1;
    huart3.Init.Parity = UART_PARITY_NONE;
    huart3.Init.Mode = UART_MODE_TX_RX;
    huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
    huart3.Init.OverSampling = UART_OVERSAMPLING_16;
    huart3.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
    huart3.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
    if (HAL_UART_Init(&huart3) != HAL_OK)
    {
      _Error_Handler(__FILE__, __LINE__);
    }
  
  }
  
  void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
  {
  
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    if(uartHandle->Instance==LPUART1)
    {
    /* USER CODE BEGIN LPUART1_MspInit 0 */
  
    /* USER CODE END LPUART1_MspInit 0 */
      /* LPUART1 clock enable */
      __HAL_RCC_LPUART1_CLK_ENABLE();
    
      __HAL_RCC_GPIOB_CLK_ENABLE();
      /**LPUART1 GPIO Configuration    
      PB10     ------> LPUART1_RX
      PB11     ------> LPUART1_TX 
      */
      GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_11;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF8_LPUART1;
      HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  
      /* LPUART1 interrupt Init */
      HAL_NVIC_SetPriority(LPUART1_IRQn, 0, 0);
      HAL_NVIC_EnableIRQ(LPUART1_IRQn);
    /* USER CODE BEGIN LPUART1_MspInit 1 */
  
    /* USER CODE END LPUART1_MspInit 1 */
    }
    else if(uartHandle->Instance==USART2)
    {
    /* USER CODE BEGIN USART2_MspInit 0 */
  
    /* USER CODE END USART2_MspInit 0 */
      /* USART2 clock enable */
      __HAL_RCC_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_FREQ_VERY_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
      HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  
      /* USART2 DMA Init */
      /* USART2_RX Init */
      hdma_usart2_rx.Instance = DMA1_Channel6;
      hdma_usart2_rx.Init.Request = DMA_REQUEST_2;
      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;
      if (HAL_DMA_Init(&hdma_usart2_rx) != HAL_OK)
      {
        _Error_Handler(__FILE__, __LINE__);
      }
  
      __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart2_rx);
  
      /* USART2_TX Init */
      hdma_usart2_tx.Instance = DMA1_Channel7;
      hdma_usart2_tx.Init.Request = DMA_REQUEST_2;
      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;
      if (HAL_DMA_Init(&hdma_usart2_tx) != HAL_OK)
      {
        _Error_Handler(__FILE__, __LINE__);
      }
  
      __HAL_LINKDMA(uartHandle,hdmatx,hdma_usart2_tx);
  
      /* USART2 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 */
    }
    else if(uartHandle->Instance==UART4)
    {
    /* USER CODE BEGIN UART4_MspInit 0 */
  
    /* USER CODE END UART4_MspInit 0 */
      /* UART4 clock enable */
      __HAL_RCC_UART4_CLK_ENABLE();
    
      __HAL_RCC_GPIOA_CLK_ENABLE();
      /**UART4 GPIO Configuration    
      PA0     ------> UART4_TX
      PA1     ------> UART4_RX 
      */
      GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF8_UART4;
      HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  
    /* USER CODE BEGIN UART4_MspInit 1 */
  
    /* USER CODE END UART4_MspInit 1 */
    }
    else if(uartHandle->Instance==USART3)
    {
    /* USER CODE BEGIN USART3_MspInit 0 */
  
    /* USER CODE END USART3_MspInit 0 */
      /* USART3 clock enable */
      __HAL_RCC_USART3_CLK_ENABLE();
    
      __HAL_RCC_GPIOC_CLK_ENABLE();
      /**USART3 GPIO Configuration    
      PC4     ------> USART3_TX
      PC5     ------> USART3_RX 
      */
      GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5;
      GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
      GPIO_InitStruct.Pull = GPIO_NOPULL;
      GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
      GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
      HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
  
      /* USART3 DMA Init */
      /* USART3_RX Init */
      hdma_usart3_rx.Instance = DMA1_Channel3;
      hdma_usart3_rx.Init.Request = DMA_REQUEST_2;
      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_NORMAL;
      hdma_usart3_rx.Init.Priority = DMA_PRIORITY_LOW;
      if (HAL_DMA_Init(&hdma_usart3_rx) != HAL_OK)
      {
        _Error_Handler(__FILE__, __LINE__);
      }
  
      __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart3_rx);
  
      /* USART3_TX Init */
      hdma_usart3_tx.Instance = DMA1_Channel2;
      hdma_usart3_tx.Init.Request = DMA_REQUEST_2;
      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_NORMAL;
      hdma_usart3_tx.Init.Priority = DMA_PRIORITY_LOW;
      if (HAL_DMA_Init(&hdma_usart3_tx) != HAL_OK)
      {
        _Error_Handler(__FILE__, __LINE__);
      }
  
      __HAL_LINKDMA(uartHandle,hdmatx,hdma_usart3_tx);
  
      /* USART3 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 */
    }
  }
  
  void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
  {
  
    if(uartHandle->Instance==LPUART1)
    {
    /* USER CODE BEGIN LPUART1_MspDeInit 0 */
  
    /* USER CODE END LPUART1_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_LPUART1_CLK_DISABLE();
    
      /**LPUART1 GPIO Configuration    
      PB10     ------> LPUART1_RX
      PB11     ------> LPUART1_TX 
      */
      HAL_GPIO_DeInit(GPIOB, GPIO_PIN_10|GPIO_PIN_11);
  
      /* LPUART1 interrupt Deinit */
      HAL_NVIC_DisableIRQ(LPUART1_IRQn);
    /* USER CODE BEGIN LPUART1_MspDeInit 1 */
  
    /* USER CODE END LPUART1_MspDeInit 1 */
    }
    else if(uartHandle->Instance==USART2)
    {
    /* USER CODE BEGIN USART2_MspDeInit 0 */
  
    /* USER CODE END USART2_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_USART2_CLK_DISABLE();
    
      __HAL_RCC_GPIOA_CLK_ENABLE();
      __HAL_RCC_GPIOD_CLK_ENABLE();
      /**USART2 GPIO Configuration    
      PA2     ------> USART2_TX
      PA3     ------> USART2_RX 
      */
      HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2|GPIO_PIN_3);
  
      /* USART2 DMA DeInit */
      HAL_DMA_DeInit(uartHandle->hdmarx);
      HAL_DMA_DeInit(uartHandle->hdmatx);
  
      /* USART2 interrupt Deinit */
      HAL_NVIC_DisableIRQ(USART2_IRQn);
    /* USER CODE BEGIN USART2_MspDeInit 1 */
  
    /* USER CODE END USART2_MspDeInit 1 */
    }
    else if(uartHandle->Instance==UART4)
    {
    /* USER CODE BEGIN UART4_MspDeInit 0 */
  
    /* USER CODE END UART4_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_UART4_CLK_DISABLE();
    
      /**UART4 GPIO Configuration    
      PA0     ------> UART4_TX
      PA1     ------> UART4_RX 
      */
      HAL_GPIO_DeInit(GPIOA, GPIO_PIN_0|GPIO_PIN_1);
  
    /* USER CODE BEGIN UART4_MspDeInit 1 */
  
    /* USER CODE END UART4_MspDeInit 1 */
    }
    else if(uartHandle->Instance==USART3)
    {
    /* USER CODE BEGIN USART3_MspDeInit 0 */
  
    /* USER CODE END USART3_MspDeInit 0 */
      /* Peripheral clock disable */
      __HAL_RCC_USART3_CLK_DISABLE();
    
      /**USART3 GPIO Configuration    
      PC4     ------> USART3_TX
      PC5     ------> USART3_RX 
      */
      HAL_GPIO_DeInit(GPIOC, GPIO_PIN_4|GPIO_PIN_5);
  
      /* USART3 DMA DeInit */
      HAL_DMA_DeInit(uartHandle->hdmarx);
      HAL_DMA_DeInit(uartHandle->hdmatx);
  
      /* USART3 interrupt Deinit */
      HAL_NVIC_DisableIRQ(USART3_IRQn);
    /* USER CODE BEGIN USART3_MspDeInit 1 */
  
    /* USER CODE END USART3_MspDeInit 1 */
    }
  } 
  
  /* USER CODE BEGIN 1 */
  
  /* USER CODE END 1 */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  