usart.c 3.3 KB

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  1. /**
  2. ******************************************************************************
  3. * @file usart.c
  4. * @brief This file provides code for the configuration
  5. * of the USART instances.
  6. ******************************************************************************
  7. * @attention
  8. *
  9. * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
  10. * All rights reserved.</center></h2>
  11. *
  12. * This software component is licensed by ST under Ultimate Liberty license
  13. * SLA0044, the "License"; You may not use this file except in compliance with
  14. * the License. You may obtain a copy of the License at:
  15. * www.st.com/SLA0044
  16. *
  17. ******************************************************************************
  18. */
  19. /* Includes ------------------------------------------------------------------*/
  20. #include "usart.h"
  21. /* USER CODE BEGIN 0 */
  22. /* USER CODE END 0 */
  23. UART_HandleTypeDef huart1;
  24. /* USART1 init function */
  25. void MX_USART1_UART_Init(void)
  26. {
  27. huart1.Instance = USART1;
  28. huart1.Init.BaudRate = 115200;
  29. huart1.Init.WordLength = UART_WORDLENGTH_8B;
  30. huart1.Init.StopBits = UART_STOPBITS_1;
  31. huart1.Init.Parity = UART_PARITY_NONE;
  32. huart1.Init.Mode = UART_MODE_TX_RX;
  33. huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  34. huart1.Init.OverSampling = UART_OVERSAMPLING_16;
  35. huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  36. huart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
  37. huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  38. if (HAL_UART_Init(&huart1) != HAL_OK)
  39. {
  40. Error_Handler();
  41. }
  42. if (HAL_UARTEx_SetTxFifoThreshold(&huart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
  43. {
  44. Error_Handler();
  45. }
  46. if (HAL_UARTEx_SetRxFifoThreshold(&huart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
  47. {
  48. Error_Handler();
  49. }
  50. if (HAL_UARTEx_DisableFifoMode(&huart1) != HAL_OK)
  51. {
  52. Error_Handler();
  53. }
  54. }
  55. void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
  56. {
  57. GPIO_InitTypeDef GPIO_InitStruct = {0};
  58. if(uartHandle->Instance==USART1)
  59. {
  60. /* USER CODE BEGIN USART1_MspInit 0 */
  61. /* USER CODE END USART1_MspInit 0 */
  62. /* USART1 clock enable */
  63. __HAL_RCC_USART1_CLK_ENABLE();
  64. __HAL_RCC_GPIOB_CLK_ENABLE();
  65. /**USART1 GPIO Configuration
  66. PB6 ------> USART1_TX
  67. PB7 ------> USART1_RX
  68. */
  69. GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
  70. GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  71. GPIO_InitStruct.Pull = GPIO_NOPULL;
  72. GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  73. GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
  74. HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  75. /* USER CODE BEGIN USART1_MspInit 1 */
  76. /* USER CODE END USART1_MspInit 1 */
  77. }
  78. }
  79. void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
  80. {
  81. if(uartHandle->Instance==USART1)
  82. {
  83. /* USER CODE BEGIN USART1_MspDeInit 0 */
  84. /* USER CODE END USART1_MspDeInit 0 */
  85. /* Peripheral clock disable */
  86. __HAL_RCC_USART1_CLK_DISABLE();
  87. /**USART1 GPIO Configuration
  88. PB6 ------> USART1_TX
  89. PB7 ------> USART1_RX
  90. */
  91. HAL_GPIO_DeInit(GPIOB, GPIO_PIN_6|GPIO_PIN_7);
  92. /* USER CODE BEGIN USART1_MspDeInit 1 */
  93. /* USER CODE END USART1_MspDeInit 1 */
  94. }
  95. }
  96. /* USER CODE BEGIN 1 */
  97. /* USER CODE END 1 */
  98. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/