msts/Core/Src/usart.c

/* USER CODE BEGIN Header */
/**
 ******************************************************************************
 * @file    usart.c
 * @brief   This file provides code for the configuration
 *          of the USART instances.
 ******************************************************************************
 * @attention
 *
 * Copyright (c) 2024 STMicroelectronics.
 * All rights reserved.
 *
 * This software is licensed under terms that can be found in the LICENSE file
 * in the root directory of this software component.
 * If no LICENSE file comes with this software, it is provided AS-IS.
 *
 ******************************************************************************
 */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "usart.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

UART_HandleTypeDef huart3;

/* USART1 init function */

void MX_USART1_UART_Init(void)
{

    /* USER CODE BEGIN USART1_Init 0 */

    /* USER CODE END USART1_Init 0 */

    LL_USART_InitTypeDef USART_InitStruct = {0};

    LL_GPIO_InitTypeDef GPIO_InitStruct = {0};

    /* Peripheral clock enable */
    LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_USART1);

    LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
    /**USART1 GPIO Configuration
    PA9   ------> USART1_TX
    PA10   ------> USART1_RX
    */
    GPIO_InitStruct.Pin        = LL_GPIO_PIN_9;
    GPIO_InitStruct.Mode       = LL_GPIO_MODE_ALTERNATE;
    GPIO_InitStruct.Speed      = LL_GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
    LL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    GPIO_InitStruct.Pin  = LL_GPIO_PIN_10;
    GPIO_InitStruct.Mode = LL_GPIO_MODE_FLOATING;
    LL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* USART1 interrupt Init */
    NVIC_SetPriority(USART1_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(), 0, 0));
    NVIC_EnableIRQ(USART1_IRQn);

    /* USER CODE BEGIN USART1_Init 1 */

    /* USER CODE END USART1_Init 1 */
    USART_InitStruct.BaudRate            = 115200;
    USART_InitStruct.DataWidth           = LL_USART_DATAWIDTH_8B;
    USART_InitStruct.StopBits            = LL_USART_STOPBITS_1;
    USART_InitStruct.Parity              = LL_USART_PARITY_NONE;
    USART_InitStruct.TransferDirection   = LL_USART_DIRECTION_TX_RX;
    USART_InitStruct.HardwareFlowControl = LL_USART_HWCONTROL_NONE;
    USART_InitStruct.OverSampling        = LL_USART_OVERSAMPLING_16;
    LL_USART_Init(USART1, &USART_InitStruct);
    LL_USART_ConfigAsyncMode(USART1);
    LL_USART_Enable(USART1);
    /* USER CODE BEGIN USART1_Init 2 */

    /* USER CODE END USART1_Init 2 */
}
/* USART2 init function */

void MX_USART2_UART_Init(void)
{

    /* USER CODE BEGIN USART2_Init 0 */

    /* USER CODE END USART2_Init 0 */

    LL_USART_InitTypeDef USART_InitStruct = {0};

    LL_GPIO_InitTypeDef GPIO_InitStruct = {0};

    /* Peripheral clock enable */
    LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_USART2);

    LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
    /**USART2 GPIO Configuration
    PA1   ------> USART2_RTS
    PA2   ------> USART2_TX
    PA3   ------> USART2_RX
    */
    GPIO_InitStruct.Pin        = LL_GPIO_PIN_1 | LL_GPIO_PIN_2;
    GPIO_InitStruct.Mode       = LL_GPIO_MODE_ALTERNATE;
    GPIO_InitStruct.Speed      = LL_GPIO_SPEED_FREQ_HIGH;
    GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
    LL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    GPIO_InitStruct.Pin  = LL_GPIO_PIN_3;
    GPIO_InitStruct.Mode = LL_GPIO_MODE_FLOATING;
    LL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* USART2 interrupt Init */
    NVIC_SetPriority(USART2_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(), 0, 0));
    NVIC_EnableIRQ(USART2_IRQn);

    /* USER CODE BEGIN USART2_Init 1 */

    /* USER CODE END USART2_Init 1 */
    USART_InitStruct.BaudRate            = 115200;
    USART_InitStruct.DataWidth           = LL_USART_DATAWIDTH_8B;
    USART_InitStruct.StopBits            = LL_USART_STOPBITS_1;
    USART_InitStruct.Parity              = LL_USART_PARITY_NONE;
    USART_InitStruct.TransferDirection   = LL_USART_DIRECTION_TX_RX;
    USART_InitStruct.HardwareFlowControl = LL_USART_HWCONTROL_RTS;
    USART_InitStruct.OverSampling        = LL_USART_OVERSAMPLING_16;
    LL_USART_Init(USART2, &USART_InitStruct);
    LL_USART_ConfigAsyncMode(USART2);
    LL_USART_Enable(USART2);
    /* USER CODE BEGIN USART2_Init 2 */

    /* USER CODE END USART2_Init 2 */
}
/* USART3 init function */

void MX_USART3_UART_Init(void)
{

    /* USER CODE BEGIN USART3_Init 0 */

    /* USER CODE END USART3_Init 0 */

    /* USER CODE BEGIN USART3_Init 1 */

    /* USER CODE END USART3_Init 1 */
    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;
    if (HAL_UART_Init(&huart3) != HAL_OK)
    {
        Error_Handler();
    }
    /* USER CODE BEGIN USART3_Init 2 */

    /* USER CODE END USART3_Init 2 */
}

void HAL_UART_MspInit(UART_HandleTypeDef *uartHandle)
{

    GPIO_InitTypeDef GPIO_InitStruct = {0};
    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_GPIOB_CLK_ENABLE();
        /**USART3 GPIO Configuration
        PB10     ------> USART3_TX
        PB11     ------> USART3_RX
        */
        GPIO_InitStruct.Pin   = GPIO_PIN_10;
        GPIO_InitStruct.Mode  = GPIO_MODE_AF_PP;
        GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
        HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

        GPIO_InitStruct.Pin  = GPIO_PIN_11;
        GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
        GPIO_InitStruct.Pull = GPIO_NOPULL;
        HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

        /* 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 == USART3)
    {
        /* USER CODE BEGIN USART3_MspDeInit 0 */

        /* USER CODE END USART3_MspDeInit 0 */
        /* Peripheral clock disable */
        __HAL_RCC_USART3_CLK_DISABLE();

        /**USART3 GPIO Configuration
        PB10     ------> USART3_TX
        PB11     ------> USART3_RX
        */
        HAL_GPIO_DeInit(GPIOB, GPIO_PIN_10 | GPIO_PIN_11);

        /* 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 */