1 /**
2 ******************************************************************************
3 * File Name : USART.c
4 * Description : This file provides code for the configuration
5 * of the USART instances.
6 ******************************************************************************
7 * @attention
8 *
9 * <h2><center>© Copyright (c) 2019 STMicroelectronics.
10 * All rights reserved.</center></h2>
11 *
12 * This software component is licensed by ST under BSD 3-Clause license,
13 * the "License"; You may not use this file except in compliance with the
14 * License. You may obtain a copy of the License at:
15 * opensource.org/licenses/BSD-3-Clause
16 *
17 ******************************************************************************
18 */
19
20 /* Includes ------------------------------------------------------------------*/
21 #include "usart.h"
22
23 /* USER CODE BEGIN 0 */
24
25 /* USER CODE END 0 */
26
27 UART_HandleTypeDef huart2;
28 UART_HandleTypeDef huart3;
29 DMA_HandleTypeDef hdma_usart3_rx;
30 DMA_HandleTypeDef hdma_usart3_tx;
31
32 /* USART2 init function */
33
MX_USART2_UART_Init(void)34 void MX_USART2_UART_Init(void)
35 {
36
37 huart2.Instance = USART2;
38 huart2.Init.BaudRate = 115200;
39 huart2.Init.WordLength = UART_WORDLENGTH_8B;
40 huart2.Init.StopBits = UART_STOPBITS_1;
41 huart2.Init.Parity = UART_PARITY_NONE;
42 huart2.Init.Mode = UART_MODE_TX_RX;
43 huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
44 huart2.Init.OverSampling = UART_OVERSAMPLING_16;
45 if (HAL_UART_Init(&huart2) != HAL_OK)
46 {
47 Error_Handler();
48 }
49
50 }
51 /* USART3 init function */
52
MX_USART3_UART_Init(void)53 void MX_USART3_UART_Init(void)
54 {
55
56 huart3.Instance = USART3;
57 huart3.Init.BaudRate = 115200;
58 huart3.Init.WordLength = UART_WORDLENGTH_8B;
59 huart3.Init.StopBits = UART_STOPBITS_1;
60 huart3.Init.Parity = UART_PARITY_NONE;
61 huart3.Init.Mode = UART_MODE_TX_RX;
62 huart3.Init.HwFlowCtl = UART_HWCONTROL_RTS_CTS;
63 huart3.Init.OverSampling = UART_OVERSAMPLING_8;
64 if (HAL_UART_Init(&huart3) != HAL_OK)
65 {
66 Error_Handler();
67 }
68
69 }
70
HAL_UART_MspInit(UART_HandleTypeDef * uartHandle)71 void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
72 {
73
74 GPIO_InitTypeDef GPIO_InitStruct = {0};
75 if(uartHandle->Instance==USART2)
76 {
77 /* USER CODE BEGIN USART2_MspInit 0 */
78
79 /* USER CODE END USART2_MspInit 0 */
80 /* USART2 clock enable */
81 __HAL_RCC_USART2_CLK_ENABLE();
82
83 __HAL_RCC_GPIOA_CLK_ENABLE();
84 /**USART2 GPIO Configuration
85 PA2 ------> USART2_TX
86 PA3 ------> USART2_RX
87 */
88 GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
89 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
90 GPIO_InitStruct.Pull = GPIO_PULLUP;
91 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
92 GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
93 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
94
95 /* USART2 interrupt Init */
96 HAL_NVIC_SetPriority(USART2_IRQn, 15, 0);
97 HAL_NVIC_EnableIRQ(USART2_IRQn);
98 /* USER CODE BEGIN USART2_MspInit 1 */
99
100 /* USER CODE END USART2_MspInit 1 */
101 }
102 else if(uartHandle->Instance==USART3)
103 {
104 /* USER CODE BEGIN USART3_MspInit 0 */
105
106 /* USER CODE END USART3_MspInit 0 */
107 /* USART3 clock enable */
108 __HAL_RCC_USART3_CLK_ENABLE();
109
110 __HAL_RCC_GPIOD_CLK_ENABLE();
111 /**USART3 GPIO Configuration
112 PD8 ------> USART3_TX
113 PD9 ------> USART3_RX
114 PD11 ------> USART3_CTS
115 PD12 ------> USART3_RTS
116 */
117 GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9;
118 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
119 GPIO_InitStruct.Pull = GPIO_PULLUP;
120 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
121 GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
122 HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
123
124 GPIO_InitStruct.Pin = GPIO_PIN_11|GPIO_PIN_12;
125 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
126 GPIO_InitStruct.Pull = GPIO_NOPULL;
127 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
128 GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
129 HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
130
131 /* USART3 DMA Init */
132 /* USART3_RX Init */
133 hdma_usart3_rx.Instance = DMA1_Stream1;
134 hdma_usart3_rx.Init.Channel = DMA_CHANNEL_4;
135 hdma_usart3_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
136 hdma_usart3_rx.Init.PeriphInc = DMA_PINC_DISABLE;
137 hdma_usart3_rx.Init.MemInc = DMA_MINC_ENABLE;
138 hdma_usart3_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
139 hdma_usart3_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
140 hdma_usart3_rx.Init.Mode = DMA_NORMAL;
141 hdma_usart3_rx.Init.Priority = DMA_PRIORITY_VERY_HIGH;
142 hdma_usart3_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
143 if (HAL_DMA_Init(&hdma_usart3_rx) != HAL_OK)
144 {
145 Error_Handler();
146 }
147
148 __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart3_rx);
149
150 /* USART3_TX Init */
151 hdma_usart3_tx.Instance = DMA1_Stream4;
152 hdma_usart3_tx.Init.Channel = DMA_CHANNEL_7;
153 hdma_usart3_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
154 hdma_usart3_tx.Init.PeriphInc = DMA_PINC_DISABLE;
155 hdma_usart3_tx.Init.MemInc = DMA_MINC_ENABLE;
156 hdma_usart3_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
157 hdma_usart3_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
158 hdma_usart3_tx.Init.Mode = DMA_NORMAL;
159 hdma_usart3_tx.Init.Priority = DMA_PRIORITY_MEDIUM;
160 hdma_usart3_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
161 if (HAL_DMA_Init(&hdma_usart3_tx) != HAL_OK)
162 {
163 Error_Handler();
164 }
165
166 __HAL_LINKDMA(uartHandle,hdmatx,hdma_usart3_tx);
167
168 /* USART3 interrupt Init */
169 HAL_NVIC_SetPriority(USART3_IRQn, 1, 0);
170 HAL_NVIC_EnableIRQ(USART3_IRQn);
171 /* USER CODE BEGIN USART3_MspInit 1 */
172
173 /* USER CODE END USART3_MspInit 1 */
174 }
175 }
176
HAL_UART_MspDeInit(UART_HandleTypeDef * uartHandle)177 void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
178 {
179
180 if(uartHandle->Instance==USART2)
181 {
182 /* USER CODE BEGIN USART2_MspDeInit 0 */
183
184 /* USER CODE END USART2_MspDeInit 0 */
185 /* Peripheral clock disable */
186 __HAL_RCC_USART2_CLK_DISABLE();
187
188 /**USART2 GPIO Configuration
189 PA2 ------> USART2_TX
190 PA3 ------> USART2_RX
191 */
192 HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2|GPIO_PIN_3);
193
194 /* USART2 interrupt Deinit */
195 HAL_NVIC_DisableIRQ(USART2_IRQn);
196 /* USER CODE BEGIN USART2_MspDeInit 1 */
197
198 /* USER CODE END USART2_MspDeInit 1 */
199 }
200 else if(uartHandle->Instance==USART3)
201 {
202 /* USER CODE BEGIN USART3_MspDeInit 0 */
203
204 /* USER CODE END USART3_MspDeInit 0 */
205 /* Peripheral clock disable */
206 __HAL_RCC_USART3_CLK_DISABLE();
207
208 /**USART3 GPIO Configuration
209 PD8 ------> USART3_TX
210 PD9 ------> USART3_RX
211 PD11 ------> USART3_CTS
212 PD12 ------> USART3_RTS
213 */
214 HAL_GPIO_DeInit(GPIOD, GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_11|GPIO_PIN_12);
215
216 /* USART3 DMA DeInit */
217 HAL_DMA_DeInit(uartHandle->hdmarx);
218 HAL_DMA_DeInit(uartHandle->hdmatx);
219
220 /* USART3 interrupt Deinit */
221 HAL_NVIC_DisableIRQ(USART3_IRQn);
222 /* USER CODE BEGIN USART3_MspDeInit 1 */
223
224 /* USER CODE END USART3_MspDeInit 1 */
225 }
226 }
227
228 /* USER CODE BEGIN 1 */
229
230 /* USER CODE END 1 */
231
232 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
233