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1 /**
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2 ******************************************************************************
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3 * File Name : USART.c
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4 * Description : This file provides code for the configuration
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5 * of the USART instances.
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6 ******************************************************************************
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7 *
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8 * COPYRIGHT(c) 2017 STMicroelectronics
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9 *
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10 * Redistribution and use in source and binary forms, with or without modification,
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11 * are permitted provided that the following conditions are met:
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12 * 1. Redistributions of source code must retain the above copyright notice,
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13 * this list of conditions and the following disclaimer.
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14 * 2. Redistributions in binary form must reproduce the above copyright notice,
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15 * this list of conditions and the following disclaimer in the documentation
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16 * and/or other materials provided with the distribution.
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17 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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18 * may be used to endorse or promote products derived from this software
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19 * without specific prior written permission.
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20 *
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21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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24 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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28 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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31 *
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32 ******************************************************************************
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33 */
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34
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35 /* Includes ------------------------------------------------------------------*/
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36 #include "usart.h"
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37
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38 #include "gpio.h"
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39
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40 /* USER CODE BEGIN 0 */
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41
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42 /* USER CODE END 0 */
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43
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44 UART_HandleTypeDef huart2;
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45
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46 /* USART2 init function */
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47
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48 void MX_USART2_UART_Init(void)
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49 {
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50
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51 huart2.Instance = USART2;
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52 huart2.Init.BaudRate = 115200;
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53 huart2.Init.WordLength = UART_WORDLENGTH_8B;
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54 huart2.Init.StopBits = UART_STOPBITS_1;
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55 huart2.Init.Parity = UART_PARITY_NONE;
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56 huart2.Init.Mode = UART_MODE_TX_RX;
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57 huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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58 huart2.Init.OverSampling = UART_OVERSAMPLING_16;
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59 huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
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60 huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
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61 if (HAL_UART_Init(&huart2) != HAL_OK)
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62 {
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63 Error_Handler();
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64 }
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65
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66 }
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67
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68 void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
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69 {
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70
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71 GPIO_InitTypeDef GPIO_InitStruct;
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72 if(uartHandle->Instance==USART2)
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73 {
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74 /* USER CODE BEGIN USART2_MspInit 0 */
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75
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76 /* USER CODE END USART2_MspInit 0 */
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77 /* Peripheral clock enable */
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78 __HAL_RCC_USART2_CLK_ENABLE();
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79
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80 /**USART2 GPIO Configuration
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81 PA2 ------> USART2_TX
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82 PA3 ------> USART2_RX
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83 */
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84 GPIO_InitStruct.Pin = USART_TX_Pin|USART_RX_Pin;
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85 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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86 GPIO_InitStruct.Pull = GPIO_NOPULL;
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87 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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88 GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
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89 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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90
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91 /* USER CODE BEGIN USART2_MspInit 1 */
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92
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93 /* USER CODE END USART2_MspInit 1 */
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94 }
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95 }
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96
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97 void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
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98 {
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99
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100 if(uartHandle->Instance==USART2)
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101 {
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102 /* USER CODE BEGIN USART2_MspDeInit 0 */
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103
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104 /* USER CODE END USART2_MspDeInit 0 */
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105 /* Peripheral clock disable */
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106 __HAL_RCC_USART2_CLK_DISABLE();
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107
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108 /**USART2 GPIO Configuration
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109 PA2 ------> USART2_TX
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110 PA3 ------> USART2_RX
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111 */
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112 HAL_GPIO_DeInit(GPIOA, USART_TX_Pin|USART_RX_Pin);
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113
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114 }
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115 /* USER CODE BEGIN USART2_MspDeInit 1 */
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116
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117 /* USER CODE END USART2_MspDeInit 1 */
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118 }
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119
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120 /* USER CODE BEGIN 1 */
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121
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122 /* USER CODE END 1 */
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123
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124 /**
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125 * @}
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126 */
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127
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128 /**
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129 * @}
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130 */
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131
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132 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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