I2C_TwoBoards_RestartAdvComIT
Select one of the symbols to view example projects that use it.
 
Outline
Includes
#include "main.h"
HAL_I2C_MspInit(I2C_HandleTypeDef *)
HAL_I2C_MspDeInit(I2C_HandleTypeDef *)
Files
loading...
SourceVuSTM32 Libraries and SamplesI2C_TwoBoards_RestartAdvComITSrc/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
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
/** ****************************************************************************** * @file I2C/I2C_TwoBoards_RestartAdvComIT/Src/stm32f4xx_hal_msp.c * @author MCD Application Team * @brief HAL MSP module. ****************************************************************************** * @attention * * Copyright (c) 2017 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. * ****************************************************************************** *//* ... */ /* Includes ------------------------------------------------------------------*/ #include "main.h" /** @addtogroup STM32F4xx_HAL_Examples * @{ *//* ... */ /** @defgroup HAL_MSP * @brief HAL MSP module. * @{ *//* ... */ Includes /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /* Private functions ---------------------------------------------------------*/ /** @defgroup HAL_MSP_Private_Functions * @{ *//* ... */ /** * @brief I2C MSP Initialization * This function configures the hardware resources used in this example: * - Peripheral's clock enable * - Peripheral's GPIO Configuration * - DMA configuration for transmission request by peripheral * - NVIC configuration for DMA interrupt request enable * @param hi2c: I2C handle pointer * @retval None *//* ... */ void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c) { GPIO_InitTypeDef GPIO_InitStruct; /*##-1- Enable peripherals and GPIO Clocks #################################*/ /* Enable GPIO TX/RX clock */ I2Cx_SCL_GPIO_CLK_ENABLE(); I2Cx_SDA_GPIO_CLK_ENABLE(); /* Enable I2Cx clock */ I2Cx_CLK_ENABLE(); /*##-2- Configure peripheral GPIO ##########################################*/ /* I2C TX GPIO pin configuration */ GPIO_InitStruct.Pin = I2Cx_SCL_PIN; GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; GPIO_InitStruct.Pull = GPIO_PULLUP; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = I2Cx_SCL_SDA_AF; HAL_GPIO_Init(I2Cx_SCL_GPIO_PORT, &GPIO_InitStruct); /* I2C RX GPIO pin configuration */ GPIO_InitStruct.Pin = I2Cx_SDA_PIN; GPIO_InitStruct.Alternate = I2Cx_SCL_SDA_AF; HAL_GPIO_Init(I2Cx_SDA_GPIO_PORT, &GPIO_InitStruct); /*##-3- Configure the NVIC for I2C ########################################*/ /* NVIC for I2Cx */ HAL_NVIC_SetPriority(I2Cx_ER_IRQn, 0, 1); HAL_NVIC_EnableIRQ(I2Cx_ER_IRQn); HAL_NVIC_SetPriority(I2Cx_EV_IRQn, 0, 2); HAL_NVIC_EnableIRQ(I2Cx_EV_IRQn); }{ ... } /** * @brief I2C MSP De-Initialization * This function frees the hardware resources used in this example: * - Disable the Peripheral's clock * - Revert GPIO, DMA and NVIC configuration to their default state * @param hi2c: I2C handle pointer * @retval None *//* ... */ void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c) { /*##-1- Reset peripherals ##################################################*/ I2Cx_FORCE_RESET(); I2Cx_RELEASE_RESET(); /*##-2- Disable peripherals and GPIO Clocks #################################*/ /* Configure I2C Tx as alternate function */ HAL_GPIO_DeInit(I2Cx_SCL_GPIO_PORT, I2Cx_SCL_PIN); /* Configure I2C Rx as alternate function */ HAL_GPIO_DeInit(I2Cx_SDA_GPIO_PORT, I2Cx_SDA_PIN); /*##-3- Disable the NVIC for I2C ##########################################*/ HAL_NVIC_DisableIRQ(I2Cx_ER_IRQn); HAL_NVIC_DisableIRQ(I2Cx_EV_IRQn); }{ ... } /** * @} *//* ... */ /** * @} *//* ... */ /** * @} *//* ... */
Details
Show:
from
Types: Columns: