flipperzero-firmware/firmware/targets/f7/cube/Src/usart.c

/**
  ******************************************************************************
  * @file    usart.c
  * @brief   This file provides code for the configuration
  *          of the USART instances.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under Ultimate Liberty license
  * SLA0044, the "License"; You may not use this file except in compliance with
  * the License. You may obtain a copy of the License at:
  *                             www.st.com/SLA0044
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "usart.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/* 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_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOB);
    /**USART1 GPIO Configuration
  PB6   ------> USART1_TX
  PB7   ------> USART1_RX
  */
    GPIO_InitStruct.Pin = LL_GPIO_PIN_6 | LL_GPIO_PIN_7;
    GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
    GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
    GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
    GPIO_InitStruct.Alternate = LL_GPIO_AF_7;
    LL_GPIO_Init(GPIOB, &GPIO_InitStruct);

    /* USER CODE BEGIN USART1_Init 1 */

    /* USER CODE END USART1_Init 1 */
    USART_InitStruct.PrescalerValue = LL_USART_PRESCALER_DIV1;
    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;
    USART_InitStruct.HardwareFlowControl = LL_USART_HWCONTROL_NONE;
    USART_InitStruct.OverSampling = LL_USART_OVERSAMPLING_16;
    LL_USART_Init(USART1, &USART_InitStruct);
    LL_USART_SetTXFIFOThreshold(USART1, LL_USART_FIFOTHRESHOLD_1_8);
    LL_USART_SetRXFIFOThreshold(USART1, LL_USART_FIFOTHRESHOLD_1_8);
    LL_USART_DisableFIFO(USART1);
    LL_USART_EnableAutoBaudRate(USART1);
    LL_USART_SetAutoBaudRateMode(USART1, LL_USART_AUTOBAUD_DETECT_ON_STARTBIT);
    LL_USART_ConfigAsyncMode(USART1);

    /* USER CODE BEGIN WKUPType USART1 */

    /* USER CODE END WKUPType USART1 */

    LL_USART_Enable(USART1);

    /* Polling USART1 initialisation */
    while(!(LL_USART_IsActiveFlag_TEACK(USART1))) {
    }
    /* USER CODE BEGIN USART1_Init 2 */

    /* USER CODE END USART1_Init 2 */
}

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/