UART_ReceptionToIdle_CircularDMA
Select one of the symbols to view example projects that use it.
 
Outline
Includes
#include "main.h"
Private typedef
Private define
Private macro
Private variables
Private function prototypes
External functions
HAL_MspInit()
HAL_UART_MspInit(UART_HandleTypeDef *)
HAL_UART_MspDeInit(UART_HandleTypeDef *)
Files
loading...
SourceVuSTM32 Libraries and SamplesUART_ReceptionToIdle_CircularDMASrc/stm32f4xx_hal_msp.c
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
/* USER CODE BEGIN Header */ /** ****************************************************************************** * File Name : stm32f4xx_hal_msp.c * Description : This file provides code for the MSP Initialization * and de-Initialization codes. ****************************************************************************** * @attention * * Copyright (c) 2020 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** *//* ... */ /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "main.h" /* USER CODE BEGIN Includes */ /* USER CODE END Includes */ extern DMA_HandleTypeDef hdma_usart2_rx; Includes /* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN TD */ /* USER CODE END TD */ Private typedef /* Private define ------------------------------------------------------------*/ /* USER CODE BEGIN Define */ /* USER CODE END Define */ Private define /* Private macro -------------------------------------------------------------*/ /* USER CODE BEGIN Macro */ /* USER CODE END Macro */ Private macro /* Private variables ---------------------------------------------------------*/ /* USER CODE BEGIN PV */ /* USER CODE END PV */ Private variables /* Private function prototypes -----------------------------------------------*/ /* USER CODE BEGIN PFP */ /* USER CODE END PFP */ Private function prototypes /* External functions --------------------------------------------------------*/ /* USER CODE BEGIN ExternalFunctions */ /* USER CODE END ExternalFunctions */ /* USER CODE BEGIN 0 */ /* USER CODE END 0 */ /** * Initializes the Global MSP. *//* ... */ void HAL_MspInit(void) { /* USER CODE BEGIN MspInit 0 */ /* USER CODE END MspInit 0 */ __HAL_RCC_SYSCFG_CLK_ENABLE(); __HAL_RCC_PWR_CLK_ENABLE(); /* System interrupt init*/ /* USER CODE BEGIN MspInit 1 */ /* USER CODE END MspInit 1 */ }{ ... } /** * @brief UART MSP Initialization * This function configures the hardware resources used in this example * @param huart: UART handle pointer * @retval None *//* ... */ void HAL_UART_MspInit(UART_HandleTypeDef* huart) { GPIO_InitTypeDef GPIO_InitStruct = {0}; if(huart->Instance==USART2) { /* USER CODE BEGIN USART2_MspInit 0 */ /* USER CODE END USART2_MspInit 0 */ /* Peripheral clock enable */ __HAL_RCC_USART2_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); /**USART2 GPIO Configuration PA2 ------> USART2_TX PA3 ------> USART2_RX *//* ... */ GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_PULLUP; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH; GPIO_InitStruct.Alternate = GPIO_AF7_USART2; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); /* USART2 DMA Init */ /* USART2_RX Init */ hdma_usart2_rx.Instance = DMA1_Stream5; hdma_usart2_rx.Init.Channel = DMA_CHANNEL_4; hdma_usart2_rx.Init.Direction = DMA_PERIPH_TO_MEMORY; hdma_usart2_rx.Init.PeriphInc = DMA_PINC_DISABLE; hdma_usart2_rx.Init.MemInc = DMA_MINC_ENABLE; hdma_usart2_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE; hdma_usart2_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; hdma_usart2_rx.Init.Mode = DMA_CIRCULAR; hdma_usart2_rx.Init.Priority = DMA_PRIORITY_LOW; hdma_usart2_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; if (HAL_DMA_Init(&hdma_usart2_rx) != HAL_OK) { Error_Handler(); }if (HAL_DMA_Init(&hdma_usart2_rx) != HAL_OK) { ... } __HAL_LINKDMA(huart,hdmarx,hdma_usart2_rx); /* USART2 interrupt Init */ HAL_NVIC_SetPriority(USART2_IRQn, 0, 0); HAL_NVIC_EnableIRQ(USART2_IRQn); /* USER CODE BEGIN USART2_MspInit 1 */ /* USER CODE END USART2_MspInit 1 */ }if (huart->Instance==USART2) { ... } }{ ... } /** * @brief UART MSP De-Initialization * This function freeze the hardware resources used in this example * @param huart: UART handle pointer * @retval None *//* ... */ void HAL_UART_MspDeInit(UART_HandleTypeDef* huart) { if(huart->Instance==USART2) { /* USER CODE BEGIN USART2_MspDeInit 0 */ /* USER CODE END USART2_MspDeInit 0 */ /* Peripheral clock disable */ __HAL_RCC_USART2_CLK_DISABLE(); /**USART2 GPIO Configuration PA2 ------> USART2_TX PA3 ------> USART2_RX *//* ... */ HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2|GPIO_PIN_3); /* USART2 DMA DeInit */ HAL_DMA_DeInit(huart->hdmarx); /* USART2 interrupt DeInit */ HAL_NVIC_DisableIRQ(USART2_IRQn); /* USER CODE BEGIN USART2_MspDeInit 1 */ /* USER CODE END USART2_MspDeInit 1 */ }if (huart->Instance==USART2) { ... } }{ ... } /* USER CODE BEGIN 1 */ External functions /* USER CODE END 1 */
Details
Show:
from
Types: Columns: