usart.c 3.9 KB

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  1. /**
  2. ******************************************************************************
  3. * File Name : USART.c
  4. * Description : This file provides code for the configuration
  5. * of the USART instances.
  6. ******************************************************************************
  7. *
  8. * COPYRIGHT(c) 2016 STMicroelectronics
  9. *
  10. * Redistribution and use in source and binary forms, with or without modification,
  11. * are permitted provided that the following conditions are met:
  12. * 1. Redistributions of source code must retain the above copyright notice,
  13. * this list of conditions and the following disclaimer.
  14. * 2. Redistributions in binary form must reproduce the above copyright notice,
  15. * this list of conditions and the following disclaimer in the documentation
  16. * and/or other materials provided with the distribution.
  17. * 3. Neither the name of STMicroelectronics nor the names of its contributors
  18. * may be used to endorse or promote products derived from this software
  19. * without specific prior written permission.
  20. *
  21. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  22. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  24. * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  25. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  27. * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  28. * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  29. * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31. *
  32. ******************************************************************************
  33. */
  34. /* Includes ------------------------------------------------------------------*/
  35. #include "usart.h"
  36. #include "gpio.h"
  37. /* USER CODE BEGIN 0 */
  38. /* USER CODE END 0 */
  39. UART_HandleTypeDef huart3;
  40. /* USART3 init function */
  41. void MX_USART3_UART_Init(void)
  42. {
  43. huart3.Instance = USART3;
  44. huart3.Init.BaudRate = 115200;
  45. huart3.Init.WordLength = UART_WORDLENGTH_8B;
  46. huart3.Init.StopBits = UART_STOPBITS_1;
  47. huart3.Init.Parity = UART_PARITY_NONE;
  48. huart3.Init.Mode = UART_MODE_TX_RX;
  49. huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  50. huart3.Init.OverSampling = UART_OVERSAMPLING_16;
  51. HAL_UART_Init(&huart3);
  52. }
  53. void HAL_UART_MspInit(UART_HandleTypeDef* huart)
  54. {
  55. GPIO_InitTypeDef GPIO_InitStruct;
  56. if(huart->Instance==USART3)
  57. {
  58. /* USER CODE BEGIN USART3_MspInit 0 */
  59. /* USER CODE END USART3_MspInit 0 */
  60. /* Peripheral clock enable */
  61. __USART3_CLK_ENABLE();
  62. /**USART3 GPIO Configuration
  63. PB10 ------> USART3_TX
  64. PB11 ------> USART3_RX
  65. */
  66. GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_11;
  67. GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  68. GPIO_InitStruct.Pull = GPIO_PULLUP;
  69. GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
  70. GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
  71. HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
  72. /* USER CODE BEGIN USART3_MspInit 1 */
  73. /* USER CODE END USART3_MspInit 1 */
  74. }
  75. }
  76. void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
  77. {
  78. if(huart->Instance==USART3)
  79. {
  80. /* USER CODE BEGIN USART3_MspDeInit 0 */
  81. /* USER CODE END USART3_MspDeInit 0 */
  82. /* Peripheral clock disable */
  83. __USART3_CLK_DISABLE();
  84. /**USART3 GPIO Configuration
  85. PB10 ------> USART3_TX
  86. PB11 ------> USART3_RX
  87. */
  88. HAL_GPIO_DeInit(GPIOB, GPIO_PIN_10|GPIO_PIN_11);
  89. }
  90. /* USER CODE BEGIN USART3_MspDeInit 1 */
  91. /* USER CODE END USART3_MspDeInit 1 */
  92. }
  93. /* USER CODE BEGIN 1 */
  94. /* USER CODE END 1 */
  95. /**
  96. * @}
  97. */
  98. /**
  99. * @}
  100. */
  101. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/