blob: 09e1ef4d1d8c7832e01b0360716dea4a227a282a (
plain)
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
|
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file I2C/I2C_WakeUpFromStop2/Src/stm32wbxx_hal_msp.c
* @author MCD Application Team
* @brief HAL MSP module.
******************************************************************************
* @attention
*
* Copyright (c) 2019-2021 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 */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN TD */
/* USER CODE END TD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN Define */
/* USER CODE END Define */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN Macro */
/* USER CODE END Macro */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* 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 */
/* System interrupt init*/
/* USER CODE BEGIN MspInit 1 */
/* USER CODE END MspInit 1 */
}
/**
* @brief I2C MSP Initialization
* This function configures the hardware resources used in this example
* @param hi2c: I2C handle pointer
* @retval None
*/
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
if(hi2c->Instance==I2C3)
{
/* USER CODE BEGIN I2C3_MspInit 0 */
RCC_PeriphCLKInitTypeDef RCC_PeriphCLKInitStruct;
/*##-1- Configure the I2C clock source. The clock is derived from the HSI #*/
RCC_PeriphCLKInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2C3;
RCC_PeriphCLKInitStruct.I2c3ClockSelection = RCC_I2C3CLKSOURCE_HSI;
HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphCLKInitStruct);
/*##-2- Configure the WakeUp clock system as HSI ########################*/
HAL_RCCEx_WakeUpStopCLKConfig(RCC_STOP_WAKEUPCLOCK_HSI);
/* USER CODE END I2C3_MspInit 0 */
/** Initializes the peripherals clock
*/
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2C3;
PeriphClkInitStruct.I2c3ClockSelection = RCC_I2C3CLKSOURCE_HSI;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
__HAL_RCC_GPIOC_CLK_ENABLE();
/**I2C3 GPIO Configuration
PC0 ------> I2C3_SCL
PC1 ------> I2C3_SDA
*/
GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF4_I2C3;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/* Peripheral clock enable */
__HAL_RCC_I2C3_CLK_ENABLE();
/* I2C3 interrupt Init */
HAL_NVIC_SetPriority(I2C3_EV_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(I2C3_EV_IRQn);
HAL_NVIC_SetPriority(I2C3_ER_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(I2C3_ER_IRQn);
/* USER CODE BEGIN I2C3_MspInit 1 */
/* USER CODE END I2C3_MspInit 1 */
}
}
/**
* @brief I2C MSP De-Initialization
* This function freeze the hardware resources used in this example
* @param hi2c: I2C handle pointer
* @retval None
*/
void HAL_I2C_MspDeInit(I2C_HandleTypeDef* hi2c)
{
if(hi2c->Instance==I2C3)
{
/* USER CODE BEGIN I2C3_MspDeInit 0 */
/* USER CODE END I2C3_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_I2C3_CLK_DISABLE();
/**I2C3 GPIO Configuration
PC0 ------> I2C3_SCL
PC1 ------> I2C3_SDA
*/
HAL_GPIO_DeInit(GPIOC, GPIO_PIN_0);
HAL_GPIO_DeInit(GPIOC, GPIO_PIN_1);
/* I2C3 interrupt DeInit */
HAL_NVIC_DisableIRQ(I2C3_EV_IRQn);
HAL_NVIC_DisableIRQ(I2C3_ER_IRQn);
/* USER CODE BEGIN I2C3_MspDeInit 1 */
/* USER CODE END I2C3_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
|
