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/**
 1 
/**
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  ******************************************************************************
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  ******************************************************************************
3 
  * @file    stm32f1xx_ll_i2c.h
 3 
  * @file    stm32f1xx_ll_i2c.h
4 
  * @author  MCD Application Team
 4 
  * @author  MCD Application Team
5 
  * @brief   Header file of I2C LL module.
 5 
  * @brief   Header file of I2C LL module.
6 
  ******************************************************************************
 6 
  ******************************************************************************
7 
  * @attention
 7 
  * @attention
8 
  *
 8 
  *
9 
  * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
 9 
  * Copyright (c) 2016 STMicroelectronics.
10 
  * All rights reserved.</center></h2>
 10 
  * All rights reserved.
11 
  *
 11 
  *
12 
  * This software component is licensed by ST under BSD 3-Clause license,
 12 
  * This software is licensed under terms that can be found in the LICENSE file
13 
  * the "License"; You may not use this file except in compliance with the
 13 
  * in the root directory of this software component.
14 
  * License. You may obtain a copy of the License at:
 14 
  * If no LICENSE file comes with this software, it is provided AS-IS.
15 
  *                        opensource.org/licenses/BSD-3-Clause
 15 
  *
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  *
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  ******************************************************************************
17 
  ******************************************************************************
 17 
  */
18 
  */
 18 
 
19 
 
 19 
/* Define to prevent recursive inclusion -------------------------------------*/
20 
/* Define to prevent recursive inclusion -------------------------------------*/
 20 
#ifndef __STM32F1xx_LL_I2C_H
21 
#ifndef __STM32F1xx_LL_I2C_H
 21 
#define __STM32F1xx_LL_I2C_H
22 
#define __STM32F1xx_LL_I2C_H
 22 
 
23 
 
 23 
#ifdef __cplusplus
24 
#ifdef __cplusplus
 24 
extern "C" {
25 
extern "C" {
 25 
#endif
26 
#endif
 26 
 
27 
 
 27 
/* Includes ------------------------------------------------------------------*/
28 
/* Includes ------------------------------------------------------------------*/
 28 
#include "stm32f1xx.h"
29 
#include "stm32f1xx.h"
 29 
 
30 
 
 30 
/** @addtogroup STM32F1xx_LL_Driver
31 
/** @addtogroup STM32F1xx_LL_Driver
 31 
  * @{
32 
  * @{
 32 
  */
33 
  */
 33 
 
34 
 
 34 
#if defined (I2C1) || defined (I2C2)
35 
#if defined (I2C1) || defined (I2C2)
 35 
 
36 
 
 36 
/** @defgroup I2C_LL I2C
37 
/** @defgroup I2C_LL I2C
 37 
  * @{
38 
  * @{
 38 
  */
39 
  */
 39 
 
40 
 
 40 
/* Private types -------------------------------------------------------------*/
41 
/* Private types -------------------------------------------------------------*/
 41 
/* Private variables ---------------------------------------------------------*/
42 
/* Private variables ---------------------------------------------------------*/
 42 
 
43 
 
 43 
/* Private constants ---------------------------------------------------------*/
44 
/* Private constants ---------------------------------------------------------*/
 44 
/** @defgroup I2C_LL_Private_Constants I2C Private Constants
45 
/** @defgroup I2C_LL_Private_Constants I2C Private Constants
 45 
  * @{
46 
  * @{
 46 
  */
47 
  */
 47 
 
48 
 
 48 
/* Defines used to perform compute and check in the macros */
49 
/* Defines used to perform compute and check in the macros */
 49 
#define LL_I2C_MAX_SPEED_STANDARD           100000U
50 
#define LL_I2C_MAX_SPEED_STANDARD           100000U
 50 
#define LL_I2C_MAX_SPEED_FAST               400000U
51 
#define LL_I2C_MAX_SPEED_FAST               400000U
 51 
/**
52 
/**
 52 
  * @}
53 
  * @}
 53 
  */
54 
  */
 54 
 
55 
 
 55 
/* Private macros ------------------------------------------------------------*/
56 
/* Private macros ------------------------------------------------------------*/
 56 
#if defined(USE_FULL_LL_DRIVER)
57 
#if defined(USE_FULL_LL_DRIVER)
 57 
/** @defgroup I2C_LL_Private_Macros I2C Private Macros
58 
/** @defgroup I2C_LL_Private_Macros I2C Private Macros
 58 
  * @{
59 
  * @{
 59 
  */
60 
  */
 60 
/**
61 
/**
 61 
  * @}
62 
  * @}
 62 
  */
63 
  */
 63 
#endif /*USE_FULL_LL_DRIVER*/
64 
#endif /*USE_FULL_LL_DRIVER*/
 64 
 
65 
 
 65 
/* Exported types ------------------------------------------------------------*/
66 
/* Exported types ------------------------------------------------------------*/
 66 
#if defined(USE_FULL_LL_DRIVER)
67 
#if defined(USE_FULL_LL_DRIVER)
 67 
/** @defgroup I2C_LL_ES_INIT I2C Exported Init structure
68 
/** @defgroup I2C_LL_ES_INIT I2C Exported Init structure
 68 
  * @{
69 
  * @{
 69 
  */
70 
  */
 70 
typedef struct
71 
typedef struct
 71 
{
72 
{
 72 
  uint32_t PeripheralMode;      /*!< Specifies the peripheral mode.
73 
  uint32_t PeripheralMode;      /*!< Specifies the peripheral mode.
 73 
                                     This parameter can be a value of @ref I2C_LL_EC_PERIPHERAL_MODE
74 
                                     This parameter can be a value of @ref I2C_LL_EC_PERIPHERAL_MODE
 74 
 
75 
 
 75 
                                     This feature can be modified afterwards using unitary function @ref LL_I2C_SetMode(). */
76 
                                     This feature can be modified afterwards using unitary function @ref LL_I2C_SetMode(). */
 76 
 
77 
 
 77 
  uint32_t ClockSpeed;          /*!< Specifies the clock frequency.
78 
  uint32_t ClockSpeed;          /*!< Specifies the clock frequency.
 78 
                                     This parameter must be set to a value lower than 400kHz (in Hz)
79 
                                     This parameter must be set to a value lower than 400kHz (in Hz)
 79 
 
80 
 
 80 
                                     This feature can be modified afterwards using unitary function @ref LL_I2C_SetClockPeriod()
81 
                                     This feature can be modified afterwards using unitary function @ref LL_I2C_SetClockPeriod()
 81 
                                     or @ref LL_I2C_SetDutyCycle() or @ref LL_I2C_SetClockSpeedMode() or @ref LL_I2C_ConfigSpeed(). */
82 
                                     or @ref LL_I2C_SetDutyCycle() or @ref LL_I2C_SetClockSpeedMode() or @ref LL_I2C_ConfigSpeed(). */
 82 
 
83 
 
 83 
  uint32_t DutyCycle;           /*!< Specifies the I2C fast mode duty cycle.
84 
  uint32_t DutyCycle;           /*!< Specifies the I2C fast mode duty cycle.
 84 
                                     This parameter can be a value of @ref I2C_LL_EC_DUTYCYCLE
85 
                                     This parameter can be a value of @ref I2C_LL_EC_DUTYCYCLE
 85 
 
86 
 
 86 
                                     This feature can be modified afterwards using unitary function @ref LL_I2C_SetDutyCycle(). */
87 
                                     This feature can be modified afterwards using unitary function @ref LL_I2C_SetDutyCycle(). */
 87 
 
88 
 
 88 
  uint32_t OwnAddress1;         /*!< Specifies the device own address 1.
89 
  uint32_t OwnAddress1;         /*!< Specifies the device own address 1.
 89 
                                     This parameter must be a value between Min_Data = 0x00 and Max_Data = 0x3FF
90 
                                     This parameter must be a value between Min_Data = 0x00 and Max_Data = 0x3FF
 90 
 
91 
 
 91 
                                     This feature can be modified afterwards using unitary function @ref LL_I2C_SetOwnAddress1(). */
92 
                                     This feature can be modified afterwards using unitary function @ref LL_I2C_SetOwnAddress1(). */
 92 
 
93 
 
 93 
  uint32_t TypeAcknowledge;     /*!< Specifies the ACKnowledge or Non ACKnowledge condition after the address receive match code or next received byte.
94 
  uint32_t TypeAcknowledge;     /*!< Specifies the ACKnowledge or Non ACKnowledge condition after the address receive match code or next received byte.
 94 
                                     This parameter can be a value of @ref I2C_LL_EC_I2C_ACKNOWLEDGE
95 
                                     This parameter can be a value of @ref I2C_LL_EC_I2C_ACKNOWLEDGE
 95 
 
96 
 
 96 
                                     This feature can be modified afterwards using unitary function @ref LL_I2C_AcknowledgeNextData(). */
97 
                                     This feature can be modified afterwards using unitary function @ref LL_I2C_AcknowledgeNextData(). */
 97 
 
98 
 
 98 
  uint32_t OwnAddrSize;         /*!< Specifies the device own address 1 size (7-bit or 10-bit).
99 
  uint32_t OwnAddrSize;         /*!< Specifies the device own address 1 size (7-bit or 10-bit).
 99 
                                     This parameter can be a value of @ref I2C_LL_EC_OWNADDRESS1
100 
                                     This parameter can be a value of @ref I2C_LL_EC_OWNADDRESS1
 100 
 
101 
 
 101 
                                     This feature can be modified afterwards using unitary function @ref LL_I2C_SetOwnAddress1(). */
102 
                                     This feature can be modified afterwards using unitary function @ref LL_I2C_SetOwnAddress1(). */
 102 
} LL_I2C_InitTypeDef;
103 
} LL_I2C_InitTypeDef;
 103 
/**
104 
/**
 104 
  * @}
105 
  * @}
 105 
  */
106 
  */
 106 
#endif /*USE_FULL_LL_DRIVER*/
107 
#endif /*USE_FULL_LL_DRIVER*/
 107 
 
108 
 
 108 
/* Exported constants --------------------------------------------------------*/
109 
/* Exported constants --------------------------------------------------------*/
 109 
/** @defgroup I2C_LL_Exported_Constants I2C Exported Constants
110 
/** @defgroup I2C_LL_Exported_Constants I2C Exported Constants
 110 
  * @{
111 
  * @{
 111 
  */
112 
  */
 112 
 
113 
 
 113 
/** @defgroup I2C_LL_EC_GET_FLAG Get Flags Defines
114 
/** @defgroup I2C_LL_EC_GET_FLAG Get Flags Defines
 114 
  * @brief    Flags defines which can be used with LL_I2C_ReadReg function
115 
  * @brief    Flags defines which can be used with LL_I2C_ReadReg function
 115 
  * @{
116 
  * @{
 116 
  */
117 
  */
 117 
#define LL_I2C_SR1_SB                       I2C_SR1_SB              /*!< Start Bit (master mode)                   */
118 
#define LL_I2C_SR1_SB                       I2C_SR1_SB              /*!< Start Bit (master mode)                   */
 118 
#define LL_I2C_SR1_ADDR                     I2C_SR1_ADDR            /*!< Address sent (master mode) or
119 
#define LL_I2C_SR1_ADDR                     I2C_SR1_ADDR            /*!< Address sent (master mode) or
 119 
                                                                         Address matched flag (slave mode)         */
120 
                                                                         Address matched flag (slave mode)         */
 120 
#define LL_I2C_SR1_BTF                      I2C_SR1_BTF             /*!< Byte Transfer Finished flag               */
121 
#define LL_I2C_SR1_BTF                      I2C_SR1_BTF             /*!< Byte Transfer Finished flag               */
 121 
#define LL_I2C_SR1_ADD10                    I2C_SR1_ADD10           /*!< 10-bit header sent (master mode)          */
122 
#define LL_I2C_SR1_ADD10                    I2C_SR1_ADD10           /*!< 10-bit header sent (master mode)          */
 122 
#define LL_I2C_SR1_STOPF                    I2C_SR1_STOPF           /*!< Stop detection flag (slave mode)          */
123 
#define LL_I2C_SR1_STOPF                    I2C_SR1_STOPF           /*!< Stop detection flag (slave mode)          */
 123 
#define LL_I2C_SR1_RXNE                     I2C_SR1_RXNE            /*!< Data register not empty (receivers)       */
124 
#define LL_I2C_SR1_RXNE                     I2C_SR1_RXNE            /*!< Data register not empty (receivers)       */
 124 
#define LL_I2C_SR1_TXE                      I2C_SR1_TXE             /*!< Data register empty (transmitters)        */
125 
#define LL_I2C_SR1_TXE                      I2C_SR1_TXE             /*!< Data register empty (transmitters)        */
 125 
#define LL_I2C_SR1_BERR                     I2C_SR1_BERR            /*!< Bus error                                 */
126 
#define LL_I2C_SR1_BERR                     I2C_SR1_BERR            /*!< Bus error                                 */
 126 
#define LL_I2C_SR1_ARLO                     I2C_SR1_ARLO            /*!< Arbitration lost                          */
127 
#define LL_I2C_SR1_ARLO                     I2C_SR1_ARLO            /*!< Arbitration lost                          */
 127 
#define LL_I2C_SR1_AF                       I2C_SR1_AF              /*!< Acknowledge failure flag                  */
128 
#define LL_I2C_SR1_AF                       I2C_SR1_AF              /*!< Acknowledge failure flag                  */
 128 
#define LL_I2C_SR1_OVR                      I2C_SR1_OVR             /*!< Overrun/Underrun                          */
129 
#define LL_I2C_SR1_OVR                      I2C_SR1_OVR             /*!< Overrun/Underrun                          */
 129 
#define LL_I2C_SR1_PECERR                   I2C_ISR_PECERR          /*!< PEC Error in reception (SMBus mode)       */
130 
#define LL_I2C_SR1_PECERR                   I2C_ISR_PECERR          /*!< PEC Error in reception (SMBus mode)       */
 130 
#define LL_I2C_SR1_TIMEOUT                  I2C_ISR_TIMEOUT         /*!< Timeout detection flag (SMBus mode)       */
131 
#define LL_I2C_SR1_TIMEOUT                  I2C_ISR_TIMEOUT         /*!< Timeout detection flag (SMBus mode)       */
 131 
#define LL_I2C_SR1_SMALERT                  I2C_ISR_SMALERT         /*!< SMBus alert (SMBus mode)                  */
132 
#define LL_I2C_SR1_SMALERT                  I2C_ISR_SMALERT         /*!< SMBus alert (SMBus mode)                  */
 132 
#define LL_I2C_SR2_MSL                      I2C_SR2_MSL             /*!< Master/Slave flag                         */
133 
#define LL_I2C_SR2_MSL                      I2C_SR2_MSL             /*!< Master/Slave flag                         */
 133 
#define LL_I2C_SR2_BUSY                     I2C_SR2_BUSY            /*!< Bus busy flag                             */
134 
#define LL_I2C_SR2_BUSY                     I2C_SR2_BUSY            /*!< Bus busy flag                             */
 134 
#define LL_I2C_SR2_TRA                      I2C_SR2_TRA             /*!< Transmitter/receiver direction            */
135 
#define LL_I2C_SR2_TRA                      I2C_SR2_TRA             /*!< Transmitter/receiver direction            */
 135 
#define LL_I2C_SR2_GENCALL                  I2C_SR2_GENCALL         /*!< General call address (Slave mode)         */
136 
#define LL_I2C_SR2_GENCALL                  I2C_SR2_GENCALL         /*!< General call address (Slave mode)         */
 136 
#define LL_I2C_SR2_SMBDEFAULT               I2C_SR2_SMBDEFAULT      /*!< SMBus Device default address (Slave mode) */
137 
#define LL_I2C_SR2_SMBDEFAULT               I2C_SR2_SMBDEFAULT      /*!< SMBus Device default address (Slave mode) */
 137 
#define LL_I2C_SR2_SMBHOST                  I2C_SR2_SMBHOST         /*!< SMBus Host address (Slave mode)           */
138 
#define LL_I2C_SR2_SMBHOST                  I2C_SR2_SMBHOST         /*!< SMBus Host address (Slave mode)           */
 138 
#define LL_I2C_SR2_DUALF                    I2C_SR2_DUALF           /*!< Dual flag  (Slave mode)                   */
139 
#define LL_I2C_SR2_DUALF                    I2C_SR2_DUALF           /*!< Dual flag  (Slave mode)                   */
 139 
/**
140 
/**
 140 
  * @}
141 
  * @}
 141 
  */
142 
  */
 142 
 
143 
 
 143 
/** @defgroup I2C_LL_EC_IT IT Defines
144 
/** @defgroup I2C_LL_EC_IT IT Defines
 144 
  * @brief    IT defines which can be used with LL_I2C_ReadReg and  LL_I2C_WriteReg functions
145 
  * @brief    IT defines which can be used with LL_I2C_ReadReg and  LL_I2C_WriteReg functions
 145 
  * @{
146 
  * @{
 146 
  */
147 
  */
 147 
#define LL_I2C_CR2_ITEVTEN                  I2C_CR2_ITEVTEN         /*!< Events interrupts enable */
148 
#define LL_I2C_CR2_ITEVTEN                  I2C_CR2_ITEVTEN         /*!< Events interrupts enable */
 148 
#define LL_I2C_CR2_ITBUFEN                  I2C_CR2_ITBUFEN         /*!< Buffer interrupts enable */
149 
#define LL_I2C_CR2_ITBUFEN                  I2C_CR2_ITBUFEN         /*!< Buffer interrupts enable */
 149 
#define LL_I2C_CR2_ITERREN                  I2C_CR2_ITERREN         /*!< Error interrupts enable  */
150 
#define LL_I2C_CR2_ITERREN                  I2C_CR2_ITERREN         /*!< Error interrupts enable  */
 150 
/**
151 
/**
 151 
  * @}
152 
  * @}
 152 
  */
153 
  */
 153 
 
154 
 
 154 
/** @defgroup I2C_LL_EC_OWNADDRESS1 Own Address 1 Length
155 
/** @defgroup I2C_LL_EC_OWNADDRESS1 Own Address 1 Length
 155 
  * @{
156 
  * @{
 156 
  */
157 
  */
 157 
#define LL_I2C_OWNADDRESS1_7BIT             0x00004000U                                /*!< Own address 1 is a 7-bit address.   */
158 
#define LL_I2C_OWNADDRESS1_7BIT             0x00004000U                                /*!< Own address 1 is a 7-bit address.   */
 158 
#define LL_I2C_OWNADDRESS1_10BIT            (uint32_t)(I2C_OAR1_ADDMODE | 0x00004000U) /*!< Own address 1 is a 10-bit address.  */
159 
#define LL_I2C_OWNADDRESS1_10BIT            (uint32_t)(I2C_OAR1_ADDMODE | 0x00004000U) /*!< Own address 1 is a 10-bit address.  */
 159 
/**
160 
/**
 160 
  * @}
161 
  * @}
 161 
  */
162 
  */
 162 
 
163 
 
 163 
/** @defgroup I2C_LL_EC_DUTYCYCLE Fast Mode Duty Cycle
164 
/** @defgroup I2C_LL_EC_DUTYCYCLE Fast Mode Duty Cycle
 164 
  * @{
165 
  * @{
 165 
  */
166 
  */
 166 
#define LL_I2C_DUTYCYCLE_2                  0x00000000U             /*!< I2C fast mode Tlow/Thigh = 2        */
167 
#define LL_I2C_DUTYCYCLE_2                  0x00000000U             /*!< I2C fast mode Tlow/Thigh = 2        */
 167 
#define LL_I2C_DUTYCYCLE_16_9               I2C_CCR_DUTY            /*!< I2C fast mode Tlow/Thigh = 16/9     */
168 
#define LL_I2C_DUTYCYCLE_16_9               I2C_CCR_DUTY            /*!< I2C fast mode Tlow/Thigh = 16/9     */
 168 
/**
169 
/**
 169 
  * @}
170 
  * @}
 170 
  */
171 
  */
 171 
 
172 
 
 172 
/** @defgroup I2C_LL_EC_CLOCK_SPEED_MODE Master Clock Speed Mode
173 
/** @defgroup I2C_LL_EC_CLOCK_SPEED_MODE Master Clock Speed Mode
 173 
  * @{
174 
  * @{
 174 
  */
175 
  */
 175 
#define LL_I2C_CLOCK_SPEED_STANDARD_MODE    0x00000000U             /*!< Master clock speed range is standard mode */
176 
#define LL_I2C_CLOCK_SPEED_STANDARD_MODE    0x00000000U             /*!< Master clock speed range is standard mode */
 176 
#define LL_I2C_CLOCK_SPEED_FAST_MODE        I2C_CCR_FS              /*!< Master clock speed range is fast mode     */
177 
#define LL_I2C_CLOCK_SPEED_FAST_MODE        I2C_CCR_FS              /*!< Master clock speed range is fast mode     */
 177 
/**
178 
/**
 178 
  * @}
179 
  * @}
 179 
  */
180 
  */
 180 
 
181 
 
 181 
/** @defgroup I2C_LL_EC_PERIPHERAL_MODE Peripheral Mode
182 
/** @defgroup I2C_LL_EC_PERIPHERAL_MODE Peripheral Mode
 182 
  * @{
183 
  * @{
 183 
  */
184 
  */
 184 
#define LL_I2C_MODE_I2C                     0x00000000U                                                 /*!< I2C Master or Slave mode                                    */
185 
#define LL_I2C_MODE_I2C                     0x00000000U                                                 /*!< I2C Master or Slave mode                                    */
 185 
#define LL_I2C_MODE_SMBUS_HOST              (uint32_t)(I2C_CR1_SMBUS | I2C_CR1_SMBTYPE | I2C_CR1_ENARP) /*!< SMBus Host address acknowledge                              */
186 
#define LL_I2C_MODE_SMBUS_HOST              (uint32_t)(I2C_CR1_SMBUS | I2C_CR1_SMBTYPE | I2C_CR1_ENARP) /*!< SMBus Host address acknowledge                              */
 186 
#define LL_I2C_MODE_SMBUS_DEVICE            I2C_CR1_SMBUS                                               /*!< SMBus Device default mode (Default address not acknowledge) */
187 
#define LL_I2C_MODE_SMBUS_DEVICE            I2C_CR1_SMBUS                                               /*!< SMBus Device default mode (Default address not acknowledge) */
 187 
#define LL_I2C_MODE_SMBUS_DEVICE_ARP        (uint32_t)(I2C_CR1_SMBUS | I2C_CR1_ENARP)                   /*!< SMBus Device Default address acknowledge                    */
188 
#define LL_I2C_MODE_SMBUS_DEVICE_ARP        (uint32_t)(I2C_CR1_SMBUS | I2C_CR1_ENARP)                   /*!< SMBus Device Default address acknowledge                    */
 188 
/**
189 
/**
 189 
  * @}
190 
  * @}
 190 
  */
191 
  */
 191 
 
192 
 
 192 
/** @defgroup I2C_LL_EC_I2C_ACKNOWLEDGE Acknowledge Generation
193 
/** @defgroup I2C_LL_EC_I2C_ACKNOWLEDGE Acknowledge Generation
 193 
  * @{
194 
  * @{
 194 
  */
195 
  */
 195 
#define LL_I2C_ACK                          I2C_CR1_ACK             /*!< ACK is sent after current received byte. */
196 
#define LL_I2C_ACK                          I2C_CR1_ACK             /*!< ACK is sent after current received byte. */
 196 
#define LL_I2C_NACK                         0x00000000U             /*!< NACK is sent after current received byte.*/
197 
#define LL_I2C_NACK                         0x00000000U             /*!< NACK is sent after current received byte.*/
 197 
/**
198 
/**
 198 
  * @}
199 
  * @}
 199 
  */
200 
  */
 200 
 
201 
 
 201 
/** @defgroup I2C_LL_EC_DIRECTION Read Write Direction
202 
/** @defgroup I2C_LL_EC_DIRECTION Read Write Direction
 202 
  * @{
203 
  * @{
 203 
  */
204 
  */
 204 
#define LL_I2C_DIRECTION_WRITE              I2C_SR2_TRA             /*!< Bus is in write transfer */
205 
#define LL_I2C_DIRECTION_WRITE              I2C_SR2_TRA             /*!< Bus is in write transfer */
 205 
#define LL_I2C_DIRECTION_READ               0x00000000U             /*!< Bus is in read transfer  */
206 
#define LL_I2C_DIRECTION_READ               0x00000000U             /*!< Bus is in read transfer  */
 206 
/**
207 
/**
 207 
  * @}
208 
  * @}
 208 
  */
209 
  */
 209 
 
210 
 
 210 
/**
211 
/**
 211 
  * @}
212 
  * @}
 212 
  */
213 
  */
 213 
 
214 
 
 214 
/* Exported macro ------------------------------------------------------------*/
215 
/* Exported macro ------------------------------------------------------------*/
 215 
/** @defgroup I2C_LL_Exported_Macros I2C Exported Macros
216 
/** @defgroup I2C_LL_Exported_Macros I2C Exported Macros
 216 
  * @{
217 
  * @{
 217 
  */
218 
  */
 218 
 
219 
 
 219 
/** @defgroup I2C_LL_EM_WRITE_READ Common Write and read registers Macros
220 
/** @defgroup I2C_LL_EM_WRITE_READ Common Write and read registers Macros
 220 
  * @{
221 
  * @{
 221 
  */
222 
  */
 222 
 
223 
 
 223 
/**
224 
/**
 224 
  * @brief  Write a value in I2C register
225 
  * @brief  Write a value in I2C register
 225 
  * @param  __INSTANCE__ I2C Instance
226 
  * @param  __INSTANCE__ I2C Instance
 226 
  * @param  __REG__ Register to be written
227 
  * @param  __REG__ Register to be written
 227 
  * @param  __VALUE__ Value to be written in the register
228 
  * @param  __VALUE__ Value to be written in the register
 228 
  * @retval None
229 
  * @retval None
 229 
  */
230 
  */
 230 
#define LL_I2C_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
231 
#define LL_I2C_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
 231 
 
232 
 
 232 
/**
233 
/**
 233 
  * @brief  Read a value in I2C register
234 
  * @brief  Read a value in I2C register
 234 
  * @param  __INSTANCE__ I2C Instance
235 
  * @param  __INSTANCE__ I2C Instance
 235 
  * @param  __REG__ Register to be read
236 
  * @param  __REG__ Register to be read
 236 
  * @retval Register value
237 
  * @retval Register value
 237 
  */
238 
  */
 238 
#define LL_I2C_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
239 
#define LL_I2C_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
 239 
/**
240 
/**
 240 
  * @}
241 
  * @}
 241 
  */
242 
  */
 242 
 
243 
 
 243 
/** @defgroup I2C_LL_EM_Exported_Macros_Helper Exported Macros Helper
244 
/** @defgroup I2C_LL_EM_Exported_Macros_Helper Exported_Macros_Helper
 244 
  * @{
245 
  * @{
 245 
  */
246 
  */
 246 
 
247 
 
 247 
/**
248 
/**
 248 
  * @brief  Convert Peripheral Clock Frequency in Mhz.
249 
  * @brief  Convert Peripheral Clock Frequency in Mhz.
 249 
  * @param  __PCLK__ This parameter must be a value of peripheral clock (in Hz).
250 
  * @param  __PCLK__ This parameter must be a value of peripheral clock (in Hz).
 250 
  * @retval Value of peripheral clock (in Mhz)
251 
  * @retval Value of peripheral clock (in Mhz)
 251 
  */
252 
  */
 252 
#define __LL_I2C_FREQ_HZ_TO_MHZ(__PCLK__)                               (uint32_t)((__PCLK__)/1000000U)
253 
#define __LL_I2C_FREQ_HZ_TO_MHZ(__PCLK__)                               (uint32_t)((__PCLK__)/1000000U)
 253 
 
254 
 
 254 
/**
255 
/**
 255 
  * @brief  Convert Peripheral Clock Frequency in Hz.
256 
  * @brief  Convert Peripheral Clock Frequency in Hz.
 256 
  * @param  __PCLK__ This parameter must be a value of peripheral clock (in Mhz).
257 
  * @param  __PCLK__ This parameter must be a value of peripheral clock (in Mhz).
 257 
  * @retval Value of peripheral clock (in Hz)
258 
  * @retval Value of peripheral clock (in Hz)
 258 
  */
259 
  */
 259 
#define __LL_I2C_FREQ_MHZ_TO_HZ(__PCLK__)                               (uint32_t)((__PCLK__)*1000000U)
260 
#define __LL_I2C_FREQ_MHZ_TO_HZ(__PCLK__)                               (uint32_t)((__PCLK__)*1000000U)
 260 
 
261 
 
 261 
/**
262 
/**
 262 
  * @brief  Compute I2C Clock rising time.
263 
  * @brief  Compute I2C Clock rising time.
 263 
  * @param  __FREQRANGE__ This parameter must be a value of peripheral clock (in Mhz).
264 
  * @param  __FREQRANGE__ This parameter must be a value of peripheral clock (in Mhz).
 264 
  * @param  __SPEED__ This parameter must be a value lower than 400kHz (in Hz).
265 
  * @param  __SPEED__ This parameter must be a value lower than 400kHz (in Hz).
 265 
  * @retval Value between Min_Data=0x02 and Max_Data=0x3F
266 
  * @retval Value between Min_Data=0x02 and Max_Data=0x3F
 266 
  */
267 
  */
 267 
#define __LL_I2C_RISE_TIME(__FREQRANGE__, __SPEED__)                    (uint32_t)(((__SPEED__) <= LL_I2C_MAX_SPEED_STANDARD) ? ((__FREQRANGE__) + 1U) : ((((__FREQRANGE__) * 300U) / 1000U) + 1U))
268 
#define __LL_I2C_RISE_TIME(__FREQRANGE__, __SPEED__)                    (uint32_t)(((__SPEED__) <= LL_I2C_MAX_SPEED_STANDARD) ? ((__FREQRANGE__) + 1U) : ((((__FREQRANGE__) * 300U) / 1000U) + 1U))
 268 
 
269 
 
 269 
/**
270 
/**
 270 
  * @brief  Compute Speed clock range to a Clock Control Register (I2C_CCR_CCR) value.
271 
  * @brief  Compute Speed clock range to a Clock Control Register (I2C_CCR_CCR) value.
 271 
  * @param  __PCLK__ This parameter must be a value of peripheral clock (in Hz).
272 
  * @param  __PCLK__ This parameter must be a value of peripheral clock (in Hz).
 272 
  * @param  __SPEED__ This parameter must be a value lower than 400kHz (in Hz).
273 
  * @param  __SPEED__ This parameter must be a value lower than 400kHz (in Hz).
 273 
  * @param  __DUTYCYCLE__ This parameter can be one of the following values:
274 
  * @param  __DUTYCYCLE__ This parameter can be one of the following values:
 274 
  *         @arg @ref LL_I2C_DUTYCYCLE_2
275 
  *         @arg @ref LL_I2C_DUTYCYCLE_2
 275 
  *         @arg @ref LL_I2C_DUTYCYCLE_16_9
276 
  *         @arg @ref LL_I2C_DUTYCYCLE_16_9
 276 
  * @retval Value between Min_Data=0x004 and Max_Data=0xFFF, except in FAST DUTY mode where Min_Data=0x001.
277 
  * @retval Value between Min_Data=0x004 and Max_Data=0xFFF, except in FAST DUTY mode where Min_Data=0x001.
 277 
  */
278 
  */
 278 
#define __LL_I2C_SPEED_TO_CCR(__PCLK__, __SPEED__, __DUTYCYCLE__)       (uint32_t)(((__SPEED__) <= LL_I2C_MAX_SPEED_STANDARD)? \
279 
#define __LL_I2C_SPEED_TO_CCR(__PCLK__, __SPEED__, __DUTYCYCLE__)       (uint32_t)(((__SPEED__) <= LL_I2C_MAX_SPEED_STANDARD)? \
 279 
                                                                                  (__LL_I2C_SPEED_STANDARD_TO_CCR((__PCLK__), (__SPEED__))) : \
280 
                                                                                  (__LL_I2C_SPEED_STANDARD_TO_CCR((__PCLK__), (__SPEED__))) : \
 280 
                                                                                  (__LL_I2C_SPEED_FAST_TO_CCR((__PCLK__), (__SPEED__), (__DUTYCYCLE__))))
281 
                                                                                  (__LL_I2C_SPEED_FAST_TO_CCR((__PCLK__), (__SPEED__), (__DUTYCYCLE__))))
 281 
 
282 
 
 282 
/**
283 
/**
 283 
  * @brief  Compute Speed Standard clock range to a Clock Control Register (I2C_CCR_CCR) value.
284 
  * @brief  Compute Speed Standard clock range to a Clock Control Register (I2C_CCR_CCR) value.
 284 
  * @param  __PCLK__ This parameter must be a value of peripheral clock (in Hz).
285 
  * @param  __PCLK__ This parameter must be a value of peripheral clock (in Hz).
 285 
  * @param  __SPEED__ This parameter must be a value lower than 100kHz (in Hz).
286 
  * @param  __SPEED__ This parameter must be a value lower than 100kHz (in Hz).
 286 
  * @retval Value between Min_Data=0x004 and Max_Data=0xFFF.
287 
  * @retval Value between Min_Data=0x004 and Max_Data=0xFFF.
 287 
  */
288 
  */
 288 
#define __LL_I2C_SPEED_STANDARD_TO_CCR(__PCLK__, __SPEED__)             (uint32_t)(((((__PCLK__)/((__SPEED__) << 1U)) & I2C_CCR_CCR) < 4U)? 4U:((__PCLK__) / ((__SPEED__) << 1U)))
289 
#define __LL_I2C_SPEED_STANDARD_TO_CCR(__PCLK__, __SPEED__)             (uint32_t)(((((__PCLK__)/((__SPEED__) << 1U)) & I2C_CCR_CCR) < 4U)? 4U:((__PCLK__) / ((__SPEED__) << 1U)))
 289 
 
290 
 
 290 
/**
291 
/**
 291 
  * @brief  Compute Speed Fast clock range to a Clock Control Register (I2C_CCR_CCR) value.
292 
  * @brief  Compute Speed Fast clock range to a Clock Control Register (I2C_CCR_CCR) value.
 292 
  * @param  __PCLK__ This parameter must be a value of peripheral clock (in Hz).
293 
  * @param  __PCLK__ This parameter must be a value of peripheral clock (in Hz).
 293 
  * @param  __SPEED__ This parameter must be a value between Min_Data=100Khz and Max_Data=400Khz (in Hz).
294 
  * @param  __SPEED__ This parameter must be a value between Min_Data=100Khz and Max_Data=400Khz (in Hz).
 294 
  * @param  __DUTYCYCLE__ This parameter can be one of the following values:
295 
  * @param  __DUTYCYCLE__ This parameter can be one of the following values:
 295 
  *         @arg @ref LL_I2C_DUTYCYCLE_2
296 
  *         @arg @ref LL_I2C_DUTYCYCLE_2
 296 
  *         @arg @ref LL_I2C_DUTYCYCLE_16_9
297 
  *         @arg @ref LL_I2C_DUTYCYCLE_16_9
 297 
  * @retval Value between Min_Data=0x001 and Max_Data=0xFFF
298 
  * @retval Value between Min_Data=0x001 and Max_Data=0xFFF
 298 
  */
299 
  */
 299 
#define __LL_I2C_SPEED_FAST_TO_CCR(__PCLK__, __SPEED__, __DUTYCYCLE__)  (uint32_t)(((__DUTYCYCLE__) == LL_I2C_DUTYCYCLE_2)? \
300 
#define __LL_I2C_SPEED_FAST_TO_CCR(__PCLK__, __SPEED__, __DUTYCYCLE__)  (uint32_t)(((__DUTYCYCLE__) == LL_I2C_DUTYCYCLE_2)? \
 300 
                                                                            (((((__PCLK__) / ((__SPEED__) * 3U)) & I2C_CCR_CCR) == 0U)? 1U:((__PCLK__) / ((__SPEED__) * 3U))) : \
301 
                                                                            (((((__PCLK__) / ((__SPEED__) * 3U)) & I2C_CCR_CCR) == 0U)? 1U:((__PCLK__) / ((__SPEED__) * 3U))) : \
 301 
                                                                            (((((__PCLK__) / ((__SPEED__) * 25U)) & I2C_CCR_CCR) == 0U)? 1U:((__PCLK__) / ((__SPEED__) * 25U))))
302 
                                                                            (((((__PCLK__) / ((__SPEED__) * 25U)) & I2C_CCR_CCR) == 0U)? 1U:((__PCLK__) / ((__SPEED__) * 25U))))
 302 
 
303 
 
 303 
/**
304 
/**
 304 
  * @brief  Get the Least significant bits of a 10-Bits address.
305 
  * @brief  Get the Least significant bits of a 10-Bits address.
 305 
  * @param  __ADDRESS__ This parameter must be a value of a 10-Bits slave address.
306 
  * @param  __ADDRESS__ This parameter must be a value of a 10-Bits slave address.
 306 
  * @retval Value between Min_Data=0x00 and Max_Data=0xFF
307 
  * @retval Value between Min_Data=0x00 and Max_Data=0xFF
 307 
  */
308 
  */
 308 
#define __LL_I2C_10BIT_ADDRESS(__ADDRESS__)                             ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)(0x00FF))))
309 
#define __LL_I2C_10BIT_ADDRESS(__ADDRESS__)                             ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)(0x00FF))))
 309 
 
310 
 
 310 
/**
311 
/**
 311 
  * @brief  Convert a 10-Bits address to a 10-Bits header with Write direction.
312 
  * @brief  Convert a 10-Bits address to a 10-Bits header with Write direction.
 312 
  * @param  __ADDRESS__ This parameter must be a value of a 10-Bits slave address.
313 
  * @param  __ADDRESS__ This parameter must be a value of a 10-Bits slave address.
 313 
  * @retval Value between Min_Data=0xF0 and Max_Data=0xF6
314 
  * @retval Value between Min_Data=0xF0 and Max_Data=0xF6
 314 
  */
315 
  */
 315 
#define __LL_I2C_10BIT_HEADER_WRITE(__ADDRESS__)                        ((uint8_t)((uint16_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)(0x0300))) >> 7) | (uint16_t)(0xF0))))
316 
#define __LL_I2C_10BIT_HEADER_WRITE(__ADDRESS__)                        ((uint8_t)((uint16_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)(0x0300))) >> 7) | (uint16_t)(0xF0))))
 316 
 
317 
 
 317 
/**
318 
/**
 318 
  * @brief  Convert a 10-Bits address to a 10-Bits header with Read direction.
319 
  * @brief  Convert a 10-Bits address to a 10-Bits header with Read direction.
 319 
  * @param  __ADDRESS__ This parameter must be a value of a 10-Bits slave address.
320 
  * @param  __ADDRESS__ This parameter must be a value of a 10-Bits slave address.
 320 
  * @retval Value between Min_Data=0xF1 and Max_Data=0xF7
321 
  * @retval Value between Min_Data=0xF1 and Max_Data=0xF7
 321 
  */
322 
  */
 322 
#define __LL_I2C_10BIT_HEADER_READ(__ADDRESS__)                         ((uint8_t)((uint16_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)(0x0300))) >> 7) | (uint16_t)(0xF1))))
323 
#define __LL_I2C_10BIT_HEADER_READ(__ADDRESS__)                         ((uint8_t)((uint16_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)(0x0300))) >> 7) | (uint16_t)(0xF1))))
 323 
 
324 
 
 324 
/**
325 
/**
 325 
  * @}
326 
  * @}
 326 
  */
327 
  */
 327 
 
328 
 
 328 
/**
329 
/**
 329 
  * @}
330 
  * @}
 330 
  */
331 
  */
 331 
 
332 
 
 332 
/* Exported functions --------------------------------------------------------*/
333 
/* Exported functions --------------------------------------------------------*/
 333 
 
334 
 
 334 
/** @defgroup I2C_LL_Exported_Functions I2C Exported Functions
335 
/** @defgroup I2C_LL_Exported_Functions I2C Exported Functions
 335 
  * @{
336 
  * @{
 336 
  */
337 
  */
 337 
 
338 
 
 338 
/** @defgroup I2C_LL_EF_Configuration Configuration
339 
/** @defgroup I2C_LL_EF_Configuration Configuration
 339 
  * @{
340 
  * @{
 340 
  */
341 
  */
 341 
 
342 
 
 342 
/**
343 
/**
 343 
  * @brief  Enable I2C peripheral (PE = 1).
344 
  * @brief  Enable I2C peripheral (PE = 1).
 344 
  * @rmtoll CR1          PE            LL_I2C_Enable
345 
  * @rmtoll CR1          PE            LL_I2C_Enable
 345 
  * @param  I2Cx I2C Instance.
346 
  * @param  I2Cx I2C Instance.
 346 
  * @retval None
347 
  * @retval None
 347 
  */
348 
  */
 348 
__STATIC_INLINE void LL_I2C_Enable(I2C_TypeDef *I2Cx)
349 
__STATIC_INLINE void LL_I2C_Enable(I2C_TypeDef *I2Cx)
 349 
{
350 
{
 350 
  SET_BIT(I2Cx->CR1, I2C_CR1_PE);
351 
  SET_BIT(I2Cx->CR1, I2C_CR1_PE);
 351 
}
352 
}
 352 
 
353 
 
 353 
/**
354 
/**
 354 
  * @brief  Disable I2C peripheral (PE = 0).
355 
  * @brief  Disable I2C peripheral (PE = 0).
 355 
  * @rmtoll CR1          PE            LL_I2C_Disable
356 
  * @rmtoll CR1          PE            LL_I2C_Disable
 356 
  * @param  I2Cx I2C Instance.
357 
  * @param  I2Cx I2C Instance.
 357 
  * @retval None
358 
  * @retval None
 358 
  */
359 
  */
 359 
__STATIC_INLINE void LL_I2C_Disable(I2C_TypeDef *I2Cx)
360 
__STATIC_INLINE void LL_I2C_Disable(I2C_TypeDef *I2Cx)
 360 
{
361 
{
 361 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_PE);
362 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_PE);
 362 
}
363 
}
 363 
 
364 
 
 364 
/**
365 
/**
 365 
  * @brief  Check if the I2C peripheral is enabled or disabled.
366 
  * @brief  Check if the I2C peripheral is enabled or disabled.
 366 
  * @rmtoll CR1          PE            LL_I2C_IsEnabled
367 
  * @rmtoll CR1          PE            LL_I2C_IsEnabled
 367 
  * @param  I2Cx I2C Instance.
368 
  * @param  I2Cx I2C Instance.
 368 
  * @retval State of bit (1 or 0).
369 
  * @retval State of bit (1 or 0).
 369 
  */
370 
  */
 370 
__STATIC_INLINE uint32_t LL_I2C_IsEnabled(I2C_TypeDef *I2Cx)
371 
__STATIC_INLINE uint32_t LL_I2C_IsEnabled(I2C_TypeDef *I2Cx)
 371 
{
372 
{
 372 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_PE) == (I2C_CR1_PE));
373 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_PE) == (I2C_CR1_PE));
 373 
}
374 
}
 374 
 
375 
 
 375 
 
376 
 
 376 
/**
377 
/**
 377 
  * @brief  Enable DMA transmission requests.
378 
  * @brief  Enable DMA transmission requests.
 378 
  * @rmtoll CR2          DMAEN         LL_I2C_EnableDMAReq_TX
379 
  * @rmtoll CR2          DMAEN         LL_I2C_EnableDMAReq_TX
 379 
  * @param  I2Cx I2C Instance.
380 
  * @param  I2Cx I2C Instance.
 380 
  * @retval None
381 
  * @retval None
 381 
  */
382 
  */
 382 
__STATIC_INLINE void LL_I2C_EnableDMAReq_TX(I2C_TypeDef *I2Cx)
383 
__STATIC_INLINE void LL_I2C_EnableDMAReq_TX(I2C_TypeDef *I2Cx)
 383 
{
384 
{
 384 
  SET_BIT(I2Cx->CR2, I2C_CR2_DMAEN);
385 
  SET_BIT(I2Cx->CR2, I2C_CR2_DMAEN);
 385 
}
386 
}
 386 
 
387 
 
 387 
/**
388 
/**
 388 
  * @brief  Disable DMA transmission requests.
389 
  * @brief  Disable DMA transmission requests.
 389 
  * @rmtoll CR2          DMAEN         LL_I2C_DisableDMAReq_TX
390 
  * @rmtoll CR2          DMAEN         LL_I2C_DisableDMAReq_TX
 390 
  * @param  I2Cx I2C Instance.
391 
  * @param  I2Cx I2C Instance.
 391 
  * @retval None
392 
  * @retval None
 392 
  */
393 
  */
 393 
__STATIC_INLINE void LL_I2C_DisableDMAReq_TX(I2C_TypeDef *I2Cx)
394 
__STATIC_INLINE void LL_I2C_DisableDMAReq_TX(I2C_TypeDef *I2Cx)
 394 
{
395 
{
 395 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_DMAEN);
396 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_DMAEN);
 396 
}
397 
}
 397 
 
398 
 
 398 
/**
399 
/**
 399 
  * @brief  Check if DMA transmission requests are enabled or disabled.
400 
  * @brief  Check if DMA transmission requests are enabled or disabled.
 400 
  * @rmtoll CR2          DMAEN         LL_I2C_IsEnabledDMAReq_TX
401 
  * @rmtoll CR2          DMAEN         LL_I2C_IsEnabledDMAReq_TX
 401 
  * @param  I2Cx I2C Instance.
402 
  * @param  I2Cx I2C Instance.
 402 
  * @retval State of bit (1 or 0).
403 
  * @retval State of bit (1 or 0).
 403 
  */
404 
  */
 404 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledDMAReq_TX(I2C_TypeDef *I2Cx)
405 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledDMAReq_TX(I2C_TypeDef *I2Cx)
 405 
{
406 
{
 406 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_DMAEN) == (I2C_CR2_DMAEN));
407 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_DMAEN) == (I2C_CR2_DMAEN));
 407 
}
408 
}
 408 
 
409 
 
 409 
/**
410 
/**
 410 
  * @brief  Enable DMA reception requests.
411 
  * @brief  Enable DMA reception requests.
 411 
  * @rmtoll CR2          DMAEN         LL_I2C_EnableDMAReq_RX
412 
  * @rmtoll CR2          DMAEN         LL_I2C_EnableDMAReq_RX
 412 
  * @param  I2Cx I2C Instance.
413 
  * @param  I2Cx I2C Instance.
 413 
  * @retval None
414 
  * @retval None
 414 
  */
415 
  */
 415 
__STATIC_INLINE void LL_I2C_EnableDMAReq_RX(I2C_TypeDef *I2Cx)
416 
__STATIC_INLINE void LL_I2C_EnableDMAReq_RX(I2C_TypeDef *I2Cx)
 416 
{
417 
{
 417 
  SET_BIT(I2Cx->CR2, I2C_CR2_DMAEN);
418 
  SET_BIT(I2Cx->CR2, I2C_CR2_DMAEN);
 418 
}
419 
}
 419 
 
420 
 
 420 
/**
421 
/**
 421 
  * @brief  Disable DMA reception requests.
422 
  * @brief  Disable DMA reception requests.
 422 
  * @rmtoll CR2          DMAEN         LL_I2C_DisableDMAReq_RX
423 
  * @rmtoll CR2          DMAEN         LL_I2C_DisableDMAReq_RX
 423 
  * @param  I2Cx I2C Instance.
424 
  * @param  I2Cx I2C Instance.
 424 
  * @retval None
425 
  * @retval None
 425 
  */
426 
  */
 426 
__STATIC_INLINE void LL_I2C_DisableDMAReq_RX(I2C_TypeDef *I2Cx)
427 
__STATIC_INLINE void LL_I2C_DisableDMAReq_RX(I2C_TypeDef *I2Cx)
 427 
{
428 
{
 428 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_DMAEN);
429 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_DMAEN);
 429 
}
430 
}
 430 
 
431 
 
 431 
/**
432 
/**
 432 
  * @brief  Check if DMA reception requests are enabled or disabled.
433 
  * @brief  Check if DMA reception requests are enabled or disabled.
 433 
  * @rmtoll CR2          DMAEN         LL_I2C_IsEnabledDMAReq_RX
434 
  * @rmtoll CR2          DMAEN         LL_I2C_IsEnabledDMAReq_RX
 434 
  * @param  I2Cx I2C Instance.
435 
  * @param  I2Cx I2C Instance.
 435 
  * @retval State of bit (1 or 0).
436 
  * @retval State of bit (1 or 0).
 436 
  */
437 
  */
 437 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledDMAReq_RX(I2C_TypeDef *I2Cx)
438 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledDMAReq_RX(I2C_TypeDef *I2Cx)
 438 
{
439 
{
 439 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_DMAEN) == (I2C_CR2_DMAEN));
440 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_DMAEN) == (I2C_CR2_DMAEN));
 440 
}
441 
}
 441 
 
442 
 
 442 
/**
443 
/**
 443 
  * @brief  Get the data register address used for DMA transfer.
444 
  * @brief  Get the data register address used for DMA transfer.
 444 
  * @rmtoll DR           DR            LL_I2C_DMA_GetRegAddr
445 
  * @rmtoll DR           DR            LL_I2C_DMA_GetRegAddr
 445 
  * @param  I2Cx I2C Instance.
446 
  * @param  I2Cx I2C Instance.
 446 
  * @retval Address of data register
447 
  * @retval Address of data register
 447 
  */
448 
  */
 448 
__STATIC_INLINE uint32_t LL_I2C_DMA_GetRegAddr(I2C_TypeDef *I2Cx)
449 
__STATIC_INLINE uint32_t LL_I2C_DMA_GetRegAddr(I2C_TypeDef *I2Cx)
 449 
{
450 
{
 450 
  return (uint32_t) & (I2Cx->DR);
451 
  return (uint32_t) & (I2Cx->DR);
 451 
}
452 
}
 452 
 
453 
 
 453 
/**
454 
/**
 454 
  * @brief  Enable Clock stretching.
455 
  * @brief  Enable Clock stretching.
 455 
  * @note   This bit can only be programmed when the I2C is disabled (PE = 0).
456 
  * @note   This bit can only be programmed when the I2C is disabled (PE = 0).
 456 
  * @rmtoll CR1          NOSTRETCH     LL_I2C_EnableClockStretching
457 
  * @rmtoll CR1          NOSTRETCH     LL_I2C_EnableClockStretching
 457 
  * @param  I2Cx I2C Instance.
458 
  * @param  I2Cx I2C Instance.
 458 
  * @retval None
459 
  * @retval None
 459 
  */
460 
  */
 460 
__STATIC_INLINE void LL_I2C_EnableClockStretching(I2C_TypeDef *I2Cx)
461 
__STATIC_INLINE void LL_I2C_EnableClockStretching(I2C_TypeDef *I2Cx)
 461 
{
462 
{
 462 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_NOSTRETCH);
463 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_NOSTRETCH);
 463 
}
464 
}
 464 
 
465 
 
 465 
/**
466 
/**
 466 
  * @brief  Disable Clock stretching.
467 
  * @brief  Disable Clock stretching.
 467 
  * @note   This bit can only be programmed when the I2C is disabled (PE = 0).
468 
  * @note   This bit can only be programmed when the I2C is disabled (PE = 0).
 468 
  * @rmtoll CR1          NOSTRETCH     LL_I2C_DisableClockStretching
469 
  * @rmtoll CR1          NOSTRETCH     LL_I2C_DisableClockStretching
 469 
  * @param  I2Cx I2C Instance.
470 
  * @param  I2Cx I2C Instance.
 470 
  * @retval None
471 
  * @retval None
 471 
  */
472 
  */
 472 
__STATIC_INLINE void LL_I2C_DisableClockStretching(I2C_TypeDef *I2Cx)
473 
__STATIC_INLINE void LL_I2C_DisableClockStretching(I2C_TypeDef *I2Cx)
 473 
{
474 
{
 474 
  SET_BIT(I2Cx->CR1, I2C_CR1_NOSTRETCH);
475 
  SET_BIT(I2Cx->CR1, I2C_CR1_NOSTRETCH);
 475 
}
476 
}
 476 
 
477 
 
 477 
/**
478 
/**
 478 
  * @brief  Check if Clock stretching is enabled or disabled.
479 
  * @brief  Check if Clock stretching is enabled or disabled.
 479 
  * @rmtoll CR1          NOSTRETCH     LL_I2C_IsEnabledClockStretching
480 
  * @rmtoll CR1          NOSTRETCH     LL_I2C_IsEnabledClockStretching
 480 
  * @param  I2Cx I2C Instance.
481 
  * @param  I2Cx I2C Instance.
 481 
  * @retval State of bit (1 or 0).
482 
  * @retval State of bit (1 or 0).
 482 
  */
483 
  */
 483 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledClockStretching(I2C_TypeDef *I2Cx)
484 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledClockStretching(I2C_TypeDef *I2Cx)
 484 
{
485 
{
 485 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_NOSTRETCH) != (I2C_CR1_NOSTRETCH));
486 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_NOSTRETCH) != (I2C_CR1_NOSTRETCH));
 486 
}
487 
}
 487 
 
488 
 
 488 
/**
489 
/**
 489 
  * @brief  Enable General Call.
490 
  * @brief  Enable General Call.
 490 
  * @note   When enabled the Address 0x00 is ACKed.
491 
  * @note   When enabled the Address 0x00 is ACKed.
 491 
  * @rmtoll CR1          ENGC          LL_I2C_EnableGeneralCall
492 
  * @rmtoll CR1          ENGC          LL_I2C_EnableGeneralCall
 492 
  * @param  I2Cx I2C Instance.
493 
  * @param  I2Cx I2C Instance.
 493 
  * @retval None
494 
  * @retval None
 494 
  */
495 
  */
 495 
__STATIC_INLINE void LL_I2C_EnableGeneralCall(I2C_TypeDef *I2Cx)
496 
__STATIC_INLINE void LL_I2C_EnableGeneralCall(I2C_TypeDef *I2Cx)
 496 
{
497 
{
 497 
  SET_BIT(I2Cx->CR1, I2C_CR1_ENGC);
498 
  SET_BIT(I2Cx->CR1, I2C_CR1_ENGC);
 498 
}
499 
}
 499 
 
500 
 
 500 
/**
501 
/**
 501 
  * @brief  Disable General Call.
502 
  * @brief  Disable General Call.
 502 
  * @note   When disabled the Address 0x00 is NACKed.
503 
  * @note   When disabled the Address 0x00 is NACKed.
 503 
  * @rmtoll CR1          ENGC          LL_I2C_DisableGeneralCall
504 
  * @rmtoll CR1          ENGC          LL_I2C_DisableGeneralCall
 504 
  * @param  I2Cx I2C Instance.
505 
  * @param  I2Cx I2C Instance.
 505 
  * @retval None
506 
  * @retval None
 506 
  */
507 
  */
 507 
__STATIC_INLINE void LL_I2C_DisableGeneralCall(I2C_TypeDef *I2Cx)
508 
__STATIC_INLINE void LL_I2C_DisableGeneralCall(I2C_TypeDef *I2Cx)
 508 
{
509 
{
 509 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_ENGC);
510 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_ENGC);
 510 
}
511 
}
 511 
 
512 
 
 512 
/**
513 
/**
 513 
  * @brief  Check if General Call is enabled or disabled.
514 
  * @brief  Check if General Call is enabled or disabled.
 514 
  * @rmtoll CR1          ENGC          LL_I2C_IsEnabledGeneralCall
515 
  * @rmtoll CR1          ENGC          LL_I2C_IsEnabledGeneralCall
 515 
  * @param  I2Cx I2C Instance.
516 
  * @param  I2Cx I2C Instance.
 516 
  * @retval State of bit (1 or 0).
517 
  * @retval State of bit (1 or 0).
 517 
  */
518 
  */
 518 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledGeneralCall(I2C_TypeDef *I2Cx)
519 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledGeneralCall(I2C_TypeDef *I2Cx)
 519 
{
520 
{
 520 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_ENGC) == (I2C_CR1_ENGC));
521 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_ENGC) == (I2C_CR1_ENGC));
 521 
}
522 
}
 522 
 
523 
 
 523 
/**
524 
/**
 524 
  * @brief  Set the Own Address1.
525 
  * @brief  Set the Own Address1.
 525 
  * @rmtoll OAR1         ADD0          LL_I2C_SetOwnAddress1\n
526 
  * @rmtoll OAR1         ADD0          LL_I2C_SetOwnAddress1\n
 526 
  *         OAR1         ADD1_7        LL_I2C_SetOwnAddress1\n
527 
  *         OAR1         ADD1_7        LL_I2C_SetOwnAddress1\n
 527 
  *         OAR1         ADD8_9        LL_I2C_SetOwnAddress1\n
528 
  *         OAR1         ADD8_9        LL_I2C_SetOwnAddress1\n
 528 
  *         OAR1         ADDMODE       LL_I2C_SetOwnAddress1
529 
  *         OAR1         ADDMODE       LL_I2C_SetOwnAddress1
 529 
  * @param  I2Cx I2C Instance.
530 
  * @param  I2Cx I2C Instance.
 530 
  * @param  OwnAddress1 This parameter must be a value between Min_Data=0 and Max_Data=0x3FF.
531 
  * @param  OwnAddress1 This parameter must be a value between Min_Data=0 and Max_Data=0x3FF.
 531 
  * @param  OwnAddrSize This parameter can be one of the following values:
532 
  * @param  OwnAddrSize This parameter can be one of the following values:
 532 
  *         @arg @ref LL_I2C_OWNADDRESS1_7BIT
533 
  *         @arg @ref LL_I2C_OWNADDRESS1_7BIT
 533 
  *         @arg @ref LL_I2C_OWNADDRESS1_10BIT
534 
  *         @arg @ref LL_I2C_OWNADDRESS1_10BIT
 534 
  * @retval None
535 
  * @retval None
 535 
  */
536 
  */
 536 
__STATIC_INLINE void LL_I2C_SetOwnAddress1(I2C_TypeDef *I2Cx, uint32_t OwnAddress1, uint32_t OwnAddrSize)
537 
__STATIC_INLINE void LL_I2C_SetOwnAddress1(I2C_TypeDef *I2Cx, uint32_t OwnAddress1, uint32_t OwnAddrSize)
 537 
{
538 
{
 538 
  MODIFY_REG(I2Cx->OAR1, I2C_OAR1_ADD0 | I2C_OAR1_ADD1_7 | I2C_OAR1_ADD8_9 | I2C_OAR1_ADDMODE, OwnAddress1 | OwnAddrSize);
539 
  MODIFY_REG(I2Cx->OAR1, I2C_OAR1_ADD0 | I2C_OAR1_ADD1_7 | I2C_OAR1_ADD8_9 | I2C_OAR1_ADDMODE, OwnAddress1 | OwnAddrSize);
 539 
}
540 
}
 540 
 
541 
 
 541 
/**
542 
/**
 542 
  * @brief  Set the 7bits Own Address2.
543 
  * @brief  Set the 7bits Own Address2.
 543 
  * @note   This action has no effect if own address2 is enabled.
544 
  * @note   This action has no effect if own address2 is enabled.
 544 
  * @rmtoll OAR2         ADD2          LL_I2C_SetOwnAddress2
545 
  * @rmtoll OAR2         ADD2          LL_I2C_SetOwnAddress2
 545 
  * @param  I2Cx I2C Instance.
546 
  * @param  I2Cx I2C Instance.
 546 
  * @param  OwnAddress2 This parameter must be a value between Min_Data=0 and Max_Data=0x7F.
547 
  * @param  OwnAddress2 This parameter must be a value between Min_Data=0 and Max_Data=0x7F.
 547 
  * @retval None
548 
  * @retval None
 548 
  */
549 
  */
 549 
__STATIC_INLINE void LL_I2C_SetOwnAddress2(I2C_TypeDef *I2Cx, uint32_t OwnAddress2)
550 
__STATIC_INLINE void LL_I2C_SetOwnAddress2(I2C_TypeDef *I2Cx, uint32_t OwnAddress2)
 550 
{
551 
{
 551 
  MODIFY_REG(I2Cx->OAR2, I2C_OAR2_ADD2, OwnAddress2);
552 
  MODIFY_REG(I2Cx->OAR2, I2C_OAR2_ADD2, OwnAddress2);
 552 
}
553 
}
 553 
 
554 
 
 554 
/**
555 
/**
 555 
  * @brief  Enable acknowledge on Own Address2 match address.
556 
  * @brief  Enable acknowledge on Own Address2 match address.
 556 
  * @rmtoll OAR2         ENDUAL        LL_I2C_EnableOwnAddress2
557 
  * @rmtoll OAR2         ENDUAL        LL_I2C_EnableOwnAddress2
 557 
  * @param  I2Cx I2C Instance.
558 
  * @param  I2Cx I2C Instance.
 558 
  * @retval None
559 
  * @retval None
 559 
  */
560 
  */
 560 
__STATIC_INLINE void LL_I2C_EnableOwnAddress2(I2C_TypeDef *I2Cx)
561 
__STATIC_INLINE void LL_I2C_EnableOwnAddress2(I2C_TypeDef *I2Cx)
 561 
{
562 
{
 562 
  SET_BIT(I2Cx->OAR2, I2C_OAR2_ENDUAL);
563 
  SET_BIT(I2Cx->OAR2, I2C_OAR2_ENDUAL);
 563 
}
564 
}
 564 
 
565 
 
 565 
/**
566 
/**
 566 
  * @brief  Disable  acknowledge on Own Address2 match address.
567 
  * @brief  Disable  acknowledge on Own Address2 match address.
 567 
  * @rmtoll OAR2         ENDUAL        LL_I2C_DisableOwnAddress2
568 
  * @rmtoll OAR2         ENDUAL        LL_I2C_DisableOwnAddress2
 568 
  * @param  I2Cx I2C Instance.
569 
  * @param  I2Cx I2C Instance.
 569 
  * @retval None
570 
  * @retval None
 570 
  */
571 
  */
 571 
__STATIC_INLINE void LL_I2C_DisableOwnAddress2(I2C_TypeDef *I2Cx)
572 
__STATIC_INLINE void LL_I2C_DisableOwnAddress2(I2C_TypeDef *I2Cx)
 572 
{
573 
{
 573 
  CLEAR_BIT(I2Cx->OAR2, I2C_OAR2_ENDUAL);
574 
  CLEAR_BIT(I2Cx->OAR2, I2C_OAR2_ENDUAL);
 574 
}
575 
}
 575 
 
576 
 
 576 
/**
577 
/**
 577 
  * @brief  Check if Own Address1 acknowledge is enabled or disabled.
578 
  * @brief  Check if Own Address1 acknowledge is enabled or disabled.
 578 
  * @rmtoll OAR2         ENDUAL        LL_I2C_IsEnabledOwnAddress2
579 
  * @rmtoll OAR2         ENDUAL        LL_I2C_IsEnabledOwnAddress2
 579 
  * @param  I2Cx I2C Instance.
580 
  * @param  I2Cx I2C Instance.
 580 
  * @retval State of bit (1 or 0).
581 
  * @retval State of bit (1 or 0).
 581 
  */
582 
  */
 582 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledOwnAddress2(I2C_TypeDef *I2Cx)
583 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledOwnAddress2(I2C_TypeDef *I2Cx)
 583 
{
584 
{
 584 
  return (READ_BIT(I2Cx->OAR2, I2C_OAR2_ENDUAL) == (I2C_OAR2_ENDUAL));
585 
  return (READ_BIT(I2Cx->OAR2, I2C_OAR2_ENDUAL) == (I2C_OAR2_ENDUAL));
 585 
}
586 
}
 586 
 
587 
 
 587 
/**
588 
/**
 588 
  * @brief  Configure the Peripheral clock frequency.
589 
  * @brief  Configure the Peripheral clock frequency.
 589 
  * @rmtoll CR2          FREQ          LL_I2C_SetPeriphClock
590 
  * @rmtoll CR2          FREQ          LL_I2C_SetPeriphClock
 590 
  * @param  I2Cx I2C Instance.
591 
  * @param  I2Cx I2C Instance.
 591 
  * @param  PeriphClock Peripheral Clock (in Hz)
592 
  * @param  PeriphClock Peripheral Clock (in Hz)
 592 
  * @retval None
593 
  * @retval None
 593 
  */
594 
  */
 594 
__STATIC_INLINE void LL_I2C_SetPeriphClock(I2C_TypeDef *I2Cx, uint32_t PeriphClock)
595 
__STATIC_INLINE void LL_I2C_SetPeriphClock(I2C_TypeDef *I2Cx, uint32_t PeriphClock)
 595 
{
596 
{
 596 
  MODIFY_REG(I2Cx->CR2, I2C_CR2_FREQ, __LL_I2C_FREQ_HZ_TO_MHZ(PeriphClock));
597 
  MODIFY_REG(I2Cx->CR2, I2C_CR2_FREQ, __LL_I2C_FREQ_HZ_TO_MHZ(PeriphClock));
 597 
}
598 
}
 598 
 
599 
 
 599 
/**
600 
/**
 600 
  * @brief  Get the Peripheral clock frequency.
601 
  * @brief  Get the Peripheral clock frequency.
 601 
  * @rmtoll CR2          FREQ          LL_I2C_GetPeriphClock
602 
  * @rmtoll CR2          FREQ          LL_I2C_GetPeriphClock
 602 
  * @param  I2Cx I2C Instance.
603 
  * @param  I2Cx I2C Instance.
 603 
  * @retval Value of Peripheral Clock (in Hz)
604 
  * @retval Value of Peripheral Clock (in Hz)
 604 
  */
605 
  */
 605 
__STATIC_INLINE uint32_t LL_I2C_GetPeriphClock(I2C_TypeDef *I2Cx)
606 
__STATIC_INLINE uint32_t LL_I2C_GetPeriphClock(I2C_TypeDef *I2Cx)
 606 
{
607 
{
 607 
  return (uint32_t)(__LL_I2C_FREQ_MHZ_TO_HZ(READ_BIT(I2Cx->CR2, I2C_CR2_FREQ)));
608 
  return (uint32_t)(__LL_I2C_FREQ_MHZ_TO_HZ(READ_BIT(I2Cx->CR2, I2C_CR2_FREQ)));
 608 
}
609 
}
 609 
 
610 
 
 610 
/**
611 
/**
 611 
  * @brief  Configure the Duty cycle (Fast mode only).
612 
  * @brief  Configure the Duty cycle (Fast mode only).
 612 
  * @rmtoll CCR          DUTY          LL_I2C_SetDutyCycle
613 
  * @rmtoll CCR          DUTY          LL_I2C_SetDutyCycle
 613 
  * @param  I2Cx I2C Instance.
614 
  * @param  I2Cx I2C Instance.
 614 
  * @param  DutyCycle This parameter can be one of the following values:
615 
  * @param  DutyCycle This parameter can be one of the following values:
 615 
  *         @arg @ref LL_I2C_DUTYCYCLE_2
616 
  *         @arg @ref LL_I2C_DUTYCYCLE_2
 616 
  *         @arg @ref LL_I2C_DUTYCYCLE_16_9
617 
  *         @arg @ref LL_I2C_DUTYCYCLE_16_9
 617 
  * @retval None
618 
  * @retval None
 618 
  */
619 
  */
 619 
__STATIC_INLINE void LL_I2C_SetDutyCycle(I2C_TypeDef *I2Cx, uint32_t DutyCycle)
620 
__STATIC_INLINE void LL_I2C_SetDutyCycle(I2C_TypeDef *I2Cx, uint32_t DutyCycle)
 620 
{
621 
{
 621 
  MODIFY_REG(I2Cx->CCR, I2C_CCR_DUTY, DutyCycle);
622 
  MODIFY_REG(I2Cx->CCR, I2C_CCR_DUTY, DutyCycle);
 622 
}
623 
}
 623 
 
624 
 
 624 
/**
625 
/**
 625 
  * @brief  Get the Duty cycle (Fast mode only).
626 
  * @brief  Get the Duty cycle (Fast mode only).
 626 
  * @rmtoll CCR          DUTY          LL_I2C_GetDutyCycle
627 
  * @rmtoll CCR          DUTY          LL_I2C_GetDutyCycle
 627 
  * @param  I2Cx I2C Instance.
628 
  * @param  I2Cx I2C Instance.
 628 
  * @retval Returned value can be one of the following values:
629 
  * @retval Returned value can be one of the following values:
 629 
  *         @arg @ref LL_I2C_DUTYCYCLE_2
630 
  *         @arg @ref LL_I2C_DUTYCYCLE_2
 630 
  *         @arg @ref LL_I2C_DUTYCYCLE_16_9
631 
  *         @arg @ref LL_I2C_DUTYCYCLE_16_9
 631 
  */
632 
  */
 632 
__STATIC_INLINE uint32_t LL_I2C_GetDutyCycle(I2C_TypeDef *I2Cx)
633 
__STATIC_INLINE uint32_t LL_I2C_GetDutyCycle(I2C_TypeDef *I2Cx)
 633 
{
634 
{
 634 
  return (uint32_t)(READ_BIT(I2Cx->CCR, I2C_CCR_DUTY));
635 
  return (uint32_t)(READ_BIT(I2Cx->CCR, I2C_CCR_DUTY));
 635 
}
636 
}
 636 
 
637 
 
 637 
/**
638 
/**
 638 
  * @brief  Configure the I2C master clock speed mode.
639 
  * @brief  Configure the I2C master clock speed mode.
 639 
  * @rmtoll CCR          FS            LL_I2C_SetClockSpeedMode
640 
  * @rmtoll CCR          FS            LL_I2C_SetClockSpeedMode
 640 
  * @param  I2Cx I2C Instance.
641 
  * @param  I2Cx I2C Instance.
 641 
  * @param  ClockSpeedMode This parameter can be one of the following values:
642 
  * @param  ClockSpeedMode This parameter can be one of the following values:
 642 
  *         @arg @ref LL_I2C_CLOCK_SPEED_STANDARD_MODE
643 
  *         @arg @ref LL_I2C_CLOCK_SPEED_STANDARD_MODE
 643 
  *         @arg @ref LL_I2C_CLOCK_SPEED_FAST_MODE
644 
  *         @arg @ref LL_I2C_CLOCK_SPEED_FAST_MODE
 644 
  * @retval None
645 
  * @retval None
 645 
  */
646 
  */
 646 
__STATIC_INLINE void LL_I2C_SetClockSpeedMode(I2C_TypeDef *I2Cx, uint32_t ClockSpeedMode)
647 
__STATIC_INLINE void LL_I2C_SetClockSpeedMode(I2C_TypeDef *I2Cx, uint32_t ClockSpeedMode)
 647 
{
648 
{
 648 
  MODIFY_REG(I2Cx->CCR, I2C_CCR_FS, ClockSpeedMode);
649 
  MODIFY_REG(I2Cx->CCR, I2C_CCR_FS, ClockSpeedMode);
 649 
}
650 
}
 650 
 
651 
 
 651 
/**
652 
/**
 652 
  * @brief  Get the the I2C master speed mode.
653 
  * @brief  Get the the I2C master speed mode.
 653 
  * @rmtoll CCR          FS            LL_I2C_GetClockSpeedMode
654 
  * @rmtoll CCR          FS            LL_I2C_GetClockSpeedMode
 654 
  * @param  I2Cx I2C Instance.
655 
  * @param  I2Cx I2C Instance.
 655 
  * @retval Returned value can be one of the following values:
656 
  * @retval Returned value can be one of the following values:
 656 
  *         @arg @ref LL_I2C_CLOCK_SPEED_STANDARD_MODE
657 
  *         @arg @ref LL_I2C_CLOCK_SPEED_STANDARD_MODE
 657 
  *         @arg @ref LL_I2C_CLOCK_SPEED_FAST_MODE
658 
  *         @arg @ref LL_I2C_CLOCK_SPEED_FAST_MODE
 658 
  */
659 
  */
 659 
__STATIC_INLINE uint32_t LL_I2C_GetClockSpeedMode(I2C_TypeDef *I2Cx)
660 
__STATIC_INLINE uint32_t LL_I2C_GetClockSpeedMode(I2C_TypeDef *I2Cx)
 660 
{
661 
{
 661 
  return (uint32_t)(READ_BIT(I2Cx->CCR, I2C_CCR_FS));
662 
  return (uint32_t)(READ_BIT(I2Cx->CCR, I2C_CCR_FS));
 662 
}
663 
}
 663 
 
664 
 
 664 
/**
665 
/**
 665 
  * @brief  Configure the SCL, SDA rising time.
666 
  * @brief  Configure the SCL, SDA rising time.
 666 
  * @note   This bit can only be programmed when the I2C is disabled (PE = 0).
667 
  * @note   This bit can only be programmed when the I2C is disabled (PE = 0).
 667 
  * @rmtoll TRISE        TRISE         LL_I2C_SetRiseTime
668 
  * @rmtoll TRISE        TRISE         LL_I2C_SetRiseTime
 668 
  * @param  I2Cx I2C Instance.
669 
  * @param  I2Cx I2C Instance.
 669 
  * @param  RiseTime This parameter must be a value between Min_Data=0x02 and Max_Data=0x3F.
670 
  * @param  RiseTime This parameter must be a value between Min_Data=0x02 and Max_Data=0x3F.
 670 
  * @retval None
671 
  * @retval None
 671 
  */
672 
  */
 672 
__STATIC_INLINE void LL_I2C_SetRiseTime(I2C_TypeDef *I2Cx, uint32_t RiseTime)
673 
__STATIC_INLINE void LL_I2C_SetRiseTime(I2C_TypeDef *I2Cx, uint32_t RiseTime)
 673 
{
674 
{
 674 
  MODIFY_REG(I2Cx->TRISE, I2C_TRISE_TRISE, RiseTime);
675 
  MODIFY_REG(I2Cx->TRISE, I2C_TRISE_TRISE, RiseTime);
 675 
}
676 
}
 676 
 
677 
 
 677 
/**
678 
/**
 678 
  * @brief  Get the SCL, SDA rising time.
679 
  * @brief  Get the SCL, SDA rising time.
 679 
  * @rmtoll TRISE        TRISE         LL_I2C_GetRiseTime
680 
  * @rmtoll TRISE        TRISE         LL_I2C_GetRiseTime
 680 
  * @param  I2Cx I2C Instance.
681 
  * @param  I2Cx I2C Instance.
 681 
  * @retval Value between Min_Data=0x02 and Max_Data=0x3F
682 
  * @retval Value between Min_Data=0x02 and Max_Data=0x3F
 682 
  */
683 
  */
 683 
__STATIC_INLINE uint32_t LL_I2C_GetRiseTime(I2C_TypeDef *I2Cx)
684 
__STATIC_INLINE uint32_t LL_I2C_GetRiseTime(I2C_TypeDef *I2Cx)
 684 
{
685 
{
 685 
  return (uint32_t)(READ_BIT(I2Cx->TRISE, I2C_TRISE_TRISE));
686 
  return (uint32_t)(READ_BIT(I2Cx->TRISE, I2C_TRISE_TRISE));
 686 
}
687 
}
 687 
 
688 
 
 688 
/**
689 
/**
 689 
  * @brief  Configure the SCL high and low period.
690 
  * @brief  Configure the SCL high and low period.
 690 
  * @note   This bit can only be programmed when the I2C is disabled (PE = 0).
691 
  * @note   This bit can only be programmed when the I2C is disabled (PE = 0).
 691 
  * @rmtoll CCR          CCR           LL_I2C_SetClockPeriod
692 
  * @rmtoll CCR          CCR           LL_I2C_SetClockPeriod
 692 
  * @param  I2Cx I2C Instance.
693 
  * @param  I2Cx I2C Instance.
 693 
  * @param  ClockPeriod This parameter must be a value between Min_Data=0x004 and Max_Data=0xFFF, except in FAST DUTY mode where Min_Data=0x001.
694 
  * @param  ClockPeriod This parameter must be a value between Min_Data=0x004 and Max_Data=0xFFF, except in FAST DUTY mode where Min_Data=0x001.
 694 
  * @retval None
695 
  * @retval None
 695 
  */
696 
  */
 696 
__STATIC_INLINE void LL_I2C_SetClockPeriod(I2C_TypeDef *I2Cx, uint32_t ClockPeriod)
697 
__STATIC_INLINE void LL_I2C_SetClockPeriod(I2C_TypeDef *I2Cx, uint32_t ClockPeriod)
 697 
{
698 
{
 698 
  MODIFY_REG(I2Cx->CCR, I2C_CCR_CCR, ClockPeriod);
699 
  MODIFY_REG(I2Cx->CCR, I2C_CCR_CCR, ClockPeriod);
 699 
}
700 
}
 700 
 
701 
 
 701 
/**
702 
/**
 702 
  * @brief  Get the SCL high and low period.
703 
  * @brief  Get the SCL high and low period.
 703 
  * @rmtoll CCR          CCR           LL_I2C_GetClockPeriod
704 
  * @rmtoll CCR          CCR           LL_I2C_GetClockPeriod
 704 
  * @param  I2Cx I2C Instance.
705 
  * @param  I2Cx I2C Instance.
 705 
  * @retval Value between Min_Data=0x004 and Max_Data=0xFFF, except in FAST DUTY mode where Min_Data=0x001.
706 
  * @retval Value between Min_Data=0x004 and Max_Data=0xFFF, except in FAST DUTY mode where Min_Data=0x001.
 706 
  */
707 
  */
 707 
__STATIC_INLINE uint32_t LL_I2C_GetClockPeriod(I2C_TypeDef *I2Cx)
708 
__STATIC_INLINE uint32_t LL_I2C_GetClockPeriod(I2C_TypeDef *I2Cx)
 708 
{
709 
{
 709 
  return (uint32_t)(READ_BIT(I2Cx->CCR, I2C_CCR_CCR));
710 
  return (uint32_t)(READ_BIT(I2Cx->CCR, I2C_CCR_CCR));
 710 
}
711 
}
 711 
 
712 
 
 712 
/**
713 
/**
 713 
  * @brief  Configure the SCL speed.
714 
  * @brief  Configure the SCL speed.
 714 
  * @note   This bit can only be programmed when the I2C is disabled (PE = 0).
715 
  * @note   This bit can only be programmed when the I2C is disabled (PE = 0).
 715 
  * @rmtoll CR2          FREQ          LL_I2C_ConfigSpeed\n
716 
  * @rmtoll CR2          FREQ          LL_I2C_ConfigSpeed\n
 716 
  *         TRISE        TRISE         LL_I2C_ConfigSpeed\n
717 
  *         TRISE        TRISE         LL_I2C_ConfigSpeed\n
 717 
  *         CCR          FS            LL_I2C_ConfigSpeed\n
718 
  *         CCR          FS            LL_I2C_ConfigSpeed\n
 718 
  *         CCR          DUTY          LL_I2C_ConfigSpeed\n
719 
  *         CCR          DUTY          LL_I2C_ConfigSpeed\n
 719 
  *         CCR          CCR           LL_I2C_ConfigSpeed
720 
  *         CCR          CCR           LL_I2C_ConfigSpeed
 720 
  * @param  I2Cx I2C Instance.
721 
  * @param  I2Cx I2C Instance.
 721 
  * @param  PeriphClock Peripheral Clock (in Hz)
722 
  * @param  PeriphClock Peripheral Clock (in Hz)
 722 
  * @param  ClockSpeed This parameter must be a value lower than 400kHz (in Hz).
723 
  * @param  ClockSpeed This parameter must be a value lower than 400kHz (in Hz).
 723 
  * @param  DutyCycle This parameter can be one of the following values:
724 
  * @param  DutyCycle This parameter can be one of the following values:
 724 
  *         @arg @ref LL_I2C_DUTYCYCLE_2
725 
  *         @arg @ref LL_I2C_DUTYCYCLE_2
 725 
  *         @arg @ref LL_I2C_DUTYCYCLE_16_9
726 
  *         @arg @ref LL_I2C_DUTYCYCLE_16_9
 726 
  * @retval None
727 
  * @retval None
 727 
  */
728 
  */
 728 
__STATIC_INLINE void LL_I2C_ConfigSpeed(I2C_TypeDef *I2Cx, uint32_t PeriphClock, uint32_t ClockSpeed,
729 
__STATIC_INLINE void LL_I2C_ConfigSpeed(I2C_TypeDef *I2Cx, uint32_t PeriphClock, uint32_t ClockSpeed,
 729 
                                        uint32_t DutyCycle)
730 
                                        uint32_t DutyCycle)
 730 
{
731 
{
 731 
  uint32_t freqrange = 0x0U;
732 
  uint32_t freqrange = 0x0U;
 732 
  uint32_t clockconfig = 0x0U;
733 
  uint32_t clockconfig = 0x0U;
 733 
 
734 
 
 734 
  /* Compute frequency range */
735 
  /* Compute frequency range */
 735 
  freqrange = __LL_I2C_FREQ_HZ_TO_MHZ(PeriphClock);
736 
  freqrange = __LL_I2C_FREQ_HZ_TO_MHZ(PeriphClock);
 736 
 
737 
 
 737 
  /* Configure I2Cx: Frequency range register */
738 
  /* Configure I2Cx: Frequency range register */
 738 
  MODIFY_REG(I2Cx->CR2, I2C_CR2_FREQ, freqrange);
739 
  MODIFY_REG(I2Cx->CR2, I2C_CR2_FREQ, freqrange);
 739 
 
740 
 
 740 
  /* Configure I2Cx: Rise Time register */
741 
  /* Configure I2Cx: Rise Time register */
 741 
  MODIFY_REG(I2Cx->TRISE, I2C_TRISE_TRISE, __LL_I2C_RISE_TIME(freqrange, ClockSpeed));
742 
  MODIFY_REG(I2Cx->TRISE, I2C_TRISE_TRISE, __LL_I2C_RISE_TIME(freqrange, ClockSpeed));
 742 
 
743 
 
 743 
  /* Configure Speed mode, Duty Cycle and Clock control register value */
744 
  /* Configure Speed mode, Duty Cycle and Clock control register value */
 744 
  if (ClockSpeed > LL_I2C_MAX_SPEED_STANDARD)
745 
  if (ClockSpeed > LL_I2C_MAX_SPEED_STANDARD)
 745 
  {
746 
  {
 746 
    /* Set Speed mode at fast and duty cycle for Clock Speed request in fast clock range */
747 
    /* Set Speed mode at fast and duty cycle for Clock Speed request in fast clock range */
 747 
    clockconfig = LL_I2C_CLOCK_SPEED_FAST_MODE                                          | \
748 
    clockconfig = LL_I2C_CLOCK_SPEED_FAST_MODE                                          | \
 748 
                  __LL_I2C_SPEED_FAST_TO_CCR(PeriphClock, ClockSpeed, DutyCycle)        | \
749 
                  __LL_I2C_SPEED_FAST_TO_CCR(PeriphClock, ClockSpeed, DutyCycle)        | \
 749 
                  DutyCycle;
750 
                  DutyCycle;
 750 
  }
751 
  }
 751 
  else
752 
  else
 752 
  {
753 
  {
 753 
    /* Set Speed mode at standard for Clock Speed request in standard clock range */
754 
    /* Set Speed mode at standard for Clock Speed request in standard clock range */
 754 
    clockconfig = LL_I2C_CLOCK_SPEED_STANDARD_MODE                                      | \
755 
    clockconfig = LL_I2C_CLOCK_SPEED_STANDARD_MODE                                      | \
 755 
                  __LL_I2C_SPEED_STANDARD_TO_CCR(PeriphClock, ClockSpeed);
756 
                  __LL_I2C_SPEED_STANDARD_TO_CCR(PeriphClock, ClockSpeed);
 756 
  }
757 
  }
 757 
 
758 
 
 758 
  /* Configure I2Cx: Clock control register */
759 
  /* Configure I2Cx: Clock control register */
 759 
  MODIFY_REG(I2Cx->CCR, (I2C_CCR_FS | I2C_CCR_DUTY | I2C_CCR_CCR), clockconfig);
760 
  MODIFY_REG(I2Cx->CCR, (I2C_CCR_FS | I2C_CCR_DUTY | I2C_CCR_CCR), clockconfig);
 760 
}
761 
}
 761 
 
762 
 
 762 
/**
763 
/**
 763 
  * @brief  Configure peripheral mode.
764 
  * @brief  Configure peripheral mode.
 764 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
765 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 765 
  *         SMBus feature is supported by the I2Cx Instance.
766 
  *         SMBus feature is supported by the I2Cx Instance.
 766 
  * @rmtoll CR1          SMBUS         LL_I2C_SetMode\n
767 
  * @rmtoll CR1          SMBUS         LL_I2C_SetMode\n
 767 
  *         CR1          SMBTYPE       LL_I2C_SetMode\n
768 
  *         CR1          SMBTYPE       LL_I2C_SetMode\n
 768 
  *         CR1          ENARP         LL_I2C_SetMode
769 
  *         CR1          ENARP         LL_I2C_SetMode
 769 
  * @param  I2Cx I2C Instance.
770 
  * @param  I2Cx I2C Instance.
 770 
  * @param  PeripheralMode This parameter can be one of the following values:
771 
  * @param  PeripheralMode This parameter can be one of the following values:
 771 
  *         @arg @ref LL_I2C_MODE_I2C
772 
  *         @arg @ref LL_I2C_MODE_I2C
 772 
  *         @arg @ref LL_I2C_MODE_SMBUS_HOST
773 
  *         @arg @ref LL_I2C_MODE_SMBUS_HOST
 773 
  *         @arg @ref LL_I2C_MODE_SMBUS_DEVICE
774 
  *         @arg @ref LL_I2C_MODE_SMBUS_DEVICE
 774 
  *         @arg @ref LL_I2C_MODE_SMBUS_DEVICE_ARP
775 
  *         @arg @ref LL_I2C_MODE_SMBUS_DEVICE_ARP
 775 
  * @retval None
776 
  * @retval None
 776 
  */
777 
  */
 777 
__STATIC_INLINE void LL_I2C_SetMode(I2C_TypeDef *I2Cx, uint32_t PeripheralMode)
778 
__STATIC_INLINE void LL_I2C_SetMode(I2C_TypeDef *I2Cx, uint32_t PeripheralMode)
 778 
{
779 
{
 779 
  MODIFY_REG(I2Cx->CR1, I2C_CR1_SMBUS | I2C_CR1_SMBTYPE | I2C_CR1_ENARP, PeripheralMode);
780 
  MODIFY_REG(I2Cx->CR1, I2C_CR1_SMBUS | I2C_CR1_SMBTYPE | I2C_CR1_ENARP, PeripheralMode);
 780 
}
781 
}
 781 
 
782 
 
 782 
/**
783 
/**
 783 
  * @brief  Get peripheral mode.
784 
  * @brief  Get peripheral mode.
 784 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
785 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 785 
  *         SMBus feature is supported by the I2Cx Instance.
786 
  *         SMBus feature is supported by the I2Cx Instance.
 786 
  * @rmtoll CR1          SMBUS         LL_I2C_GetMode\n
787 
  * @rmtoll CR1          SMBUS         LL_I2C_GetMode\n
 787 
  *         CR1          SMBTYPE       LL_I2C_GetMode\n
788 
  *         CR1          SMBTYPE       LL_I2C_GetMode\n
 788 
  *         CR1          ENARP         LL_I2C_GetMode
789 
  *         CR1          ENARP         LL_I2C_GetMode
 789 
  * @param  I2Cx I2C Instance.
790 
  * @param  I2Cx I2C Instance.
 790 
  * @retval Returned value can be one of the following values:
791 
  * @retval Returned value can be one of the following values:
 791 
  *         @arg @ref LL_I2C_MODE_I2C
792 
  *         @arg @ref LL_I2C_MODE_I2C
 792 
  *         @arg @ref LL_I2C_MODE_SMBUS_HOST
793 
  *         @arg @ref LL_I2C_MODE_SMBUS_HOST
 793 
  *         @arg @ref LL_I2C_MODE_SMBUS_DEVICE
794 
  *         @arg @ref LL_I2C_MODE_SMBUS_DEVICE
 794 
  *         @arg @ref LL_I2C_MODE_SMBUS_DEVICE_ARP
795 
  *         @arg @ref LL_I2C_MODE_SMBUS_DEVICE_ARP
 795 
  */
796 
  */
 796 
__STATIC_INLINE uint32_t LL_I2C_GetMode(I2C_TypeDef *I2Cx)
797 
__STATIC_INLINE uint32_t LL_I2C_GetMode(I2C_TypeDef *I2Cx)
 797 
{
798 
{
 798 
  return (uint32_t)(READ_BIT(I2Cx->CR1, I2C_CR1_SMBUS | I2C_CR1_SMBTYPE | I2C_CR1_ENARP));
799 
  return (uint32_t)(READ_BIT(I2Cx->CR1, I2C_CR1_SMBUS | I2C_CR1_SMBTYPE | I2C_CR1_ENARP));
 799 
}
800 
}
 800 
 
801 
 
 801 
/**
802 
/**
 802 
  * @brief  Enable SMBus alert (Host or Device mode)
803 
  * @brief  Enable SMBus alert (Host or Device mode)
 803 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
804 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 804 
  *         SMBus feature is supported by the I2Cx Instance.
805 
  *         SMBus feature is supported by the I2Cx Instance.
 805 
  * @note   SMBus Device mode:
806 
  * @note   SMBus Device mode:
 806 
  *         - SMBus Alert pin is drived low and
807 
  *         - SMBus Alert pin is drived low and
 807 
  *           Alert Response Address Header acknowledge is enabled.
808 
  *           Alert Response Address Header acknowledge is enabled.
 808 
  *         SMBus Host mode:
809 
  *         SMBus Host mode:
 809 
  *         - SMBus Alert pin management is supported.
810 
  *         - SMBus Alert pin management is supported.
 810 
  * @rmtoll CR1          ALERT         LL_I2C_EnableSMBusAlert
811 
  * @rmtoll CR1          ALERT         LL_I2C_EnableSMBusAlert
 811 
  * @param  I2Cx I2C Instance.
812 
  * @param  I2Cx I2C Instance.
 812 
  * @retval None
813 
  * @retval None
 813 
  */
814 
  */
 814 
__STATIC_INLINE void LL_I2C_EnableSMBusAlert(I2C_TypeDef *I2Cx)
815 
__STATIC_INLINE void LL_I2C_EnableSMBusAlert(I2C_TypeDef *I2Cx)
 815 
{
816 
{
 816 
  SET_BIT(I2Cx->CR1, I2C_CR1_ALERT);
817 
  SET_BIT(I2Cx->CR1, I2C_CR1_ALERT);
 817 
}
818 
}
 818 
 
819 
 
 819 
/**
820 
/**
 820 
  * @brief  Disable SMBus alert (Host or Device mode)
821 
  * @brief  Disable SMBus alert (Host or Device mode)
 821 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
822 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 822 
  *         SMBus feature is supported by the I2Cx Instance.
823 
  *         SMBus feature is supported by the I2Cx Instance.
 823 
  * @note   SMBus Device mode:
824 
  * @note   SMBus Device mode:
 824 
  *         - SMBus Alert pin is not drived (can be used as a standard GPIO) and
825 
  *         - SMBus Alert pin is not drived (can be used as a standard GPIO) and
 825 
  *           Alert Response Address Header acknowledge is disabled.
826 
  *           Alert Response Address Header acknowledge is disabled.
 826 
  *         SMBus Host mode:
827 
  *         SMBus Host mode:
 827 
  *         - SMBus Alert pin management is not supported.
828 
  *         - SMBus Alert pin management is not supported.
 828 
  * @rmtoll CR1          ALERT         LL_I2C_DisableSMBusAlert
829 
  * @rmtoll CR1          ALERT         LL_I2C_DisableSMBusAlert
 829 
  * @param  I2Cx I2C Instance.
830 
  * @param  I2Cx I2C Instance.
 830 
  * @retval None
831 
  * @retval None
 831 
  */
832 
  */
 832 
__STATIC_INLINE void LL_I2C_DisableSMBusAlert(I2C_TypeDef *I2Cx)
833 
__STATIC_INLINE void LL_I2C_DisableSMBusAlert(I2C_TypeDef *I2Cx)
 833 
{
834 
{
 834 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_ALERT);
835 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_ALERT);
 835 
}
836 
}
 836 
 
837 
 
 837 
/**
838 
/**
 838 
  * @brief  Check if SMBus alert (Host or Device mode) is enabled or disabled.
839 
  * @brief  Check if SMBus alert (Host or Device mode) is enabled or disabled.
 839 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
840 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 840 
  *         SMBus feature is supported by the I2Cx Instance.
841 
  *         SMBus feature is supported by the I2Cx Instance.
 841 
  * @rmtoll CR1          ALERT         LL_I2C_IsEnabledSMBusAlert
842 
  * @rmtoll CR1          ALERT         LL_I2C_IsEnabledSMBusAlert
 842 
  * @param  I2Cx I2C Instance.
843 
  * @param  I2Cx I2C Instance.
 843 
  * @retval State of bit (1 or 0).
844 
  * @retval State of bit (1 or 0).
 844 
  */
845 
  */
 845 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusAlert(I2C_TypeDef *I2Cx)
846 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusAlert(I2C_TypeDef *I2Cx)
 846 
{
847 
{
 847 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_ALERT) == (I2C_CR1_ALERT));
848 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_ALERT) == (I2C_CR1_ALERT));
 848 
}
849 
}
 849 
 
850 
 
 850 
/**
851 
/**
 851 
  * @brief  Enable SMBus Packet Error Calculation (PEC).
852 
  * @brief  Enable SMBus Packet Error Calculation (PEC).
 852 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
853 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 853 
  *         SMBus feature is supported by the I2Cx Instance.
854 
  *         SMBus feature is supported by the I2Cx Instance.
 854 
  * @rmtoll CR1          ENPEC         LL_I2C_EnableSMBusPEC
855 
  * @rmtoll CR1          ENPEC         LL_I2C_EnableSMBusPEC
 855 
  * @param  I2Cx I2C Instance.
856 
  * @param  I2Cx I2C Instance.
 856 
  * @retval None
857 
  * @retval None
 857 
  */
858 
  */
 858 
__STATIC_INLINE void LL_I2C_EnableSMBusPEC(I2C_TypeDef *I2Cx)
859 
__STATIC_INLINE void LL_I2C_EnableSMBusPEC(I2C_TypeDef *I2Cx)
 859 
{
860 
{
 860 
  SET_BIT(I2Cx->CR1, I2C_CR1_ENPEC);
861 
  SET_BIT(I2Cx->CR1, I2C_CR1_ENPEC);
 861 
}
862 
}
 862 
 
863 
 
 863 
/**
864 
/**
 864 
  * @brief  Disable SMBus Packet Error Calculation (PEC).
865 
  * @brief  Disable SMBus Packet Error Calculation (PEC).
 865 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
866 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 866 
  *         SMBus feature is supported by the I2Cx Instance.
867 
  *         SMBus feature is supported by the I2Cx Instance.
 867 
  * @rmtoll CR1          ENPEC         LL_I2C_DisableSMBusPEC
868 
  * @rmtoll CR1          ENPEC         LL_I2C_DisableSMBusPEC
 868 
  * @param  I2Cx I2C Instance.
869 
  * @param  I2Cx I2C Instance.
 869 
  * @retval None
870 
  * @retval None
 870 
  */
871 
  */
 871 
__STATIC_INLINE void LL_I2C_DisableSMBusPEC(I2C_TypeDef *I2Cx)
872 
__STATIC_INLINE void LL_I2C_DisableSMBusPEC(I2C_TypeDef *I2Cx)
 872 
{
873 
{
 873 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_ENPEC);
874 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_ENPEC);
 874 
}
875 
}
 875 
 
876 
 
 876 
/**
877 
/**
 877 
  * @brief  Check if SMBus Packet Error Calculation (PEC) is enabled or disabled.
878 
  * @brief  Check if SMBus Packet Error Calculation (PEC) is enabled or disabled.
 878 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
879 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 879 
  *         SMBus feature is supported by the I2Cx Instance.
880 
  *         SMBus feature is supported by the I2Cx Instance.
 880 
  * @rmtoll CR1          ENPEC         LL_I2C_IsEnabledSMBusPEC
881 
  * @rmtoll CR1          ENPEC         LL_I2C_IsEnabledSMBusPEC
 881 
  * @param  I2Cx I2C Instance.
882 
  * @param  I2Cx I2C Instance.
 882 
  * @retval State of bit (1 or 0).
883 
  * @retval State of bit (1 or 0).
 883 
  */
884 
  */
 884 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusPEC(I2C_TypeDef *I2Cx)
885 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusPEC(I2C_TypeDef *I2Cx)
 885 
{
886 
{
 886 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_ENPEC) == (I2C_CR1_ENPEC));
887 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_ENPEC) == (I2C_CR1_ENPEC));
 887 
}
888 
}
 888 
 
889 
 
 889 
/**
890 
/**
 890 
  * @}
891 
  * @}
 891 
  */
892 
  */
 892 
 
893 
 
 893 
/** @defgroup I2C_LL_EF_IT_Management IT_Management
894 
/** @defgroup I2C_LL_EF_IT_Management IT_Management
 894 
  * @{
895 
  * @{
 895 
  */
896 
  */
 896 
 
897 
 
 897 
/**
898 
/**
 898 
  * @brief  Enable TXE interrupt.
899 
  * @brief  Enable TXE interrupt.
 899 
  * @rmtoll CR2          ITEVTEN       LL_I2C_EnableIT_TX\n
900 
  * @rmtoll CR2          ITEVTEN       LL_I2C_EnableIT_TX\n
 900 
  *         CR2          ITBUFEN       LL_I2C_EnableIT_TX
901 
  *         CR2          ITBUFEN       LL_I2C_EnableIT_TX
 901 
  * @param  I2Cx I2C Instance.
902 
  * @param  I2Cx I2C Instance.
 902 
  * @retval None
903 
  * @retval None
 903 
  */
904 
  */
 904 
__STATIC_INLINE void LL_I2C_EnableIT_TX(I2C_TypeDef *I2Cx)
905 
__STATIC_INLINE void LL_I2C_EnableIT_TX(I2C_TypeDef *I2Cx)
 905 
{
906 
{
 906 
  SET_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN);
907 
  SET_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN);
 907 
}
908 
}
 908 
 
909 
 
 909 
/**
910 
/**
 910 
  * @brief  Disable TXE interrupt.
911 
  * @brief  Disable TXE interrupt.
 911 
  * @rmtoll CR2          ITEVTEN       LL_I2C_DisableIT_TX\n
912 
  * @rmtoll CR2          ITEVTEN       LL_I2C_DisableIT_TX\n
 912 
  *         CR2          ITBUFEN       LL_I2C_DisableIT_TX
913 
  *         CR2          ITBUFEN       LL_I2C_DisableIT_TX
 913 
  * @param  I2Cx I2C Instance.
914 
  * @param  I2Cx I2C Instance.
 914 
  * @retval None
915 
  * @retval None
 915 
  */
916 
  */
 916 
__STATIC_INLINE void LL_I2C_DisableIT_TX(I2C_TypeDef *I2Cx)
917 
__STATIC_INLINE void LL_I2C_DisableIT_TX(I2C_TypeDef *I2Cx)
 917 
{
918 
{
 918 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN);
919 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN);
 919 
}
920 
}
 920 
 
921 
 
 921 
/**
922 
/**
 922 
  * @brief  Check if the TXE Interrupt is enabled or disabled.
923 
  * @brief  Check if the TXE Interrupt is enabled or disabled.
 923 
  * @rmtoll CR2          ITEVTEN       LL_I2C_IsEnabledIT_TX\n
924 
  * @rmtoll CR2          ITEVTEN       LL_I2C_IsEnabledIT_TX\n
 924 
  *         CR2          ITBUFEN       LL_I2C_IsEnabledIT_TX
925 
  *         CR2          ITBUFEN       LL_I2C_IsEnabledIT_TX
 925 
  * @param  I2Cx I2C Instance.
926 
  * @param  I2Cx I2C Instance.
 926 
  * @retval State of bit (1 or 0).
927 
  * @retval State of bit (1 or 0).
 927 
  */
928 
  */
 928 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_TX(I2C_TypeDef *I2Cx)
929 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_TX(I2C_TypeDef *I2Cx)
 929 
{
930 
{
 930 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN) == (I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN));
931 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN) == (I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN));
 931 
}
932 
}
 932 
 
933 
 
 933 
/**
934 
/**
 934 
  * @brief  Enable RXNE interrupt.
935 
  * @brief  Enable RXNE interrupt.
 935 
  * @rmtoll CR2          ITEVTEN       LL_I2C_EnableIT_RX\n
936 
  * @rmtoll CR2          ITEVTEN       LL_I2C_EnableIT_RX\n
 936 
  *         CR2          ITBUFEN       LL_I2C_EnableIT_RX
937 
  *         CR2          ITBUFEN       LL_I2C_EnableIT_RX
 937 
  * @param  I2Cx I2C Instance.
938 
  * @param  I2Cx I2C Instance.
 938 
  * @retval None
939 
  * @retval None
 939 
  */
940 
  */
 940 
__STATIC_INLINE void LL_I2C_EnableIT_RX(I2C_TypeDef *I2Cx)
941 
__STATIC_INLINE void LL_I2C_EnableIT_RX(I2C_TypeDef *I2Cx)
 941 
{
942 
{
 942 
  SET_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN);
943 
  SET_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN);
 943 
}
944 
}
 944 
 
945 
 
 945 
/**
946 
/**
 946 
  * @brief  Disable RXNE interrupt.
947 
  * @brief  Disable RXNE interrupt.
 947 
  * @rmtoll CR2          ITEVTEN       LL_I2C_DisableIT_RX\n
948 
  * @rmtoll CR2          ITEVTEN       LL_I2C_DisableIT_RX\n
 948 
  *         CR2          ITBUFEN       LL_I2C_DisableIT_RX
949 
  *         CR2          ITBUFEN       LL_I2C_DisableIT_RX
 949 
  * @param  I2Cx I2C Instance.
950 
  * @param  I2Cx I2C Instance.
 950 
  * @retval None
951 
  * @retval None
 951 
  */
952 
  */
 952 
__STATIC_INLINE void LL_I2C_DisableIT_RX(I2C_TypeDef *I2Cx)
953 
__STATIC_INLINE void LL_I2C_DisableIT_RX(I2C_TypeDef *I2Cx)
 953 
{
954 
{
 954 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN);
955 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN);
 955 
}
956 
}
 956 
 
957 
 
 957 
/**
958 
/**
 958 
  * @brief  Check if the RXNE Interrupt is enabled or disabled.
959 
  * @brief  Check if the RXNE Interrupt is enabled or disabled.
 959 
  * @rmtoll CR2          ITEVTEN       LL_I2C_IsEnabledIT_RX\n
960 
  * @rmtoll CR2          ITEVTEN       LL_I2C_IsEnabledIT_RX\n
 960 
  *         CR2          ITBUFEN       LL_I2C_IsEnabledIT_RX
961 
  *         CR2          ITBUFEN       LL_I2C_IsEnabledIT_RX
 961 
  * @param  I2Cx I2C Instance.
962 
  * @param  I2Cx I2C Instance.
 962 
  * @retval State of bit (1 or 0).
963 
  * @retval State of bit (1 or 0).
 963 
  */
964 
  */
 964 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_RX(I2C_TypeDef *I2Cx)
965 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_RX(I2C_TypeDef *I2Cx)
 965 
{
966 
{
 966 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN) == (I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN));
967 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN) == (I2C_CR2_ITEVTEN | I2C_CR2_ITBUFEN));
 967 
}
968 
}
 968 
 
969 
 
 969 
/**
970 
/**
 970 
  * @brief  Enable Events interrupts.
971 
  * @brief  Enable Events interrupts.
 971 
  * @note   Any of these events will generate interrupt :
972 
  * @note   Any of these events will generate interrupt :
 972 
  *         Start Bit (SB)
973 
  *         Start Bit (SB)
 973 
  *         Address sent, Address matched (ADDR)
974 
  *         Address sent, Address matched (ADDR)
 974 
  *         10-bit header sent (ADD10)
975 
  *         10-bit header sent (ADD10)
 975 
  *         Stop detection  (STOPF)
976 
  *         Stop detection  (STOPF)
 976 
  *         Byte transfer finished (BTF)
977 
  *         Byte transfer finished (BTF)
 977 
  *
978 
  *
 978 
  * @note   Any of these events will generate interrupt if Buffer interrupts are enabled too(using unitary function @ref LL_I2C_EnableIT_BUF()) :
979 
  * @note   Any of these events will generate interrupt if Buffer interrupts are enabled too(using unitary function @ref LL_I2C_EnableIT_BUF()) :
 979 
  *         Receive buffer not empty (RXNE)
980 
  *         Receive buffer not empty (RXNE)
 980 
  *         Transmit buffer empty (TXE)
981 
  *         Transmit buffer empty (TXE)
 981 
  * @rmtoll CR2          ITEVTEN       LL_I2C_EnableIT_EVT
982 
  * @rmtoll CR2          ITEVTEN       LL_I2C_EnableIT_EVT
 982 
  * @param  I2Cx I2C Instance.
983 
  * @param  I2Cx I2C Instance.
 983 
  * @retval None
984 
  * @retval None
 984 
  */
985 
  */
 985 
__STATIC_INLINE void LL_I2C_EnableIT_EVT(I2C_TypeDef *I2Cx)
986 
__STATIC_INLINE void LL_I2C_EnableIT_EVT(I2C_TypeDef *I2Cx)
 986 
{
987 
{
 987 
  SET_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN);
988 
  SET_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN);
 988 
}
989 
}
 989 
 
990 
 
 990 
/**
991 
/**
 991 
  * @brief  Disable Events interrupts.
992 
  * @brief  Disable Events interrupts.
 992 
  * @note   Any of these events will generate interrupt :
993 
  * @note   Any of these events will generate interrupt :
 993 
  *         Start Bit (SB)
994 
  *         Start Bit (SB)
 994 
  *         Address sent, Address matched (ADDR)
995 
  *         Address sent, Address matched (ADDR)
 995 
  *         10-bit header sent (ADD10)
996 
  *         10-bit header sent (ADD10)
 996 
  *         Stop detection  (STOPF)
997 
  *         Stop detection  (STOPF)
 997 
  *         Byte transfer finished (BTF)
998 
  *         Byte transfer finished (BTF)
 998 
  *         Receive buffer not empty (RXNE)
999 
  *         Receive buffer not empty (RXNE)
 999 
  *         Transmit buffer empty (TXE)
1000 
  *         Transmit buffer empty (TXE)
 1000 
  * @rmtoll CR2          ITEVTEN       LL_I2C_DisableIT_EVT
1001 
  * @rmtoll CR2          ITEVTEN       LL_I2C_DisableIT_EVT
 1001 
  * @param  I2Cx I2C Instance.
1002 
  * @param  I2Cx I2C Instance.
 1002 
  * @retval None
1003 
  * @retval None
 1003 
  */
1004 
  */
 1004 
__STATIC_INLINE void LL_I2C_DisableIT_EVT(I2C_TypeDef *I2Cx)
1005 
__STATIC_INLINE void LL_I2C_DisableIT_EVT(I2C_TypeDef *I2Cx)
 1005 
{
1006 
{
 1006 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN);
1007 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN);
 1007 
}
1008 
}
 1008 
 
1009 
 
 1009 
/**
1010 
/**
 1010 
  * @brief  Check if Events interrupts are enabled or disabled.
1011 
  * @brief  Check if Events interrupts are enabled or disabled.
 1011 
  * @rmtoll CR2          ITEVTEN       LL_I2C_IsEnabledIT_EVT
1012 
  * @rmtoll CR2          ITEVTEN       LL_I2C_IsEnabledIT_EVT
 1012 
  * @param  I2Cx I2C Instance.
1013 
  * @param  I2Cx I2C Instance.
 1013 
  * @retval State of bit (1 or 0).
1014 
  * @retval State of bit (1 or 0).
 1014 
  */
1015 
  */
 1015 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_EVT(I2C_TypeDef *I2Cx)
1016 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_EVT(I2C_TypeDef *I2Cx)
 1016 
{
1017 
{
 1017 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN) == (I2C_CR2_ITEVTEN));
1018 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_ITEVTEN) == (I2C_CR2_ITEVTEN));
 1018 
}
1019 
}
 1019 
 
1020 
 
 1020 
/**
1021 
/**
 1021 
  * @brief  Enable Buffer interrupts.
1022 
  * @brief  Enable Buffer interrupts.
 1022 
  * @note   Any of these Buffer events will generate interrupt if Events interrupts are enabled too(using unitary function @ref LL_I2C_EnableIT_EVT()) :
1023 
  * @note   Any of these Buffer events will generate interrupt if Events interrupts are enabled too(using unitary function @ref LL_I2C_EnableIT_EVT()) :
 1023 
  *         Receive buffer not empty (RXNE)
1024 
  *         Receive buffer not empty (RXNE)
 1024 
  *         Transmit buffer empty (TXE)
1025 
  *         Transmit buffer empty (TXE)
 1025 
  * @rmtoll CR2          ITBUFEN       LL_I2C_EnableIT_BUF
1026 
  * @rmtoll CR2          ITBUFEN       LL_I2C_EnableIT_BUF
 1026 
  * @param  I2Cx I2C Instance.
1027 
  * @param  I2Cx I2C Instance.
 1027 
  * @retval None
1028 
  * @retval None
 1028 
  */
1029 
  */
 1029 
__STATIC_INLINE void LL_I2C_EnableIT_BUF(I2C_TypeDef *I2Cx)
1030 
__STATIC_INLINE void LL_I2C_EnableIT_BUF(I2C_TypeDef *I2Cx)
 1030 
{
1031 
{
 1031 
  SET_BIT(I2Cx->CR2, I2C_CR2_ITBUFEN);
1032 
  SET_BIT(I2Cx->CR2, I2C_CR2_ITBUFEN);
 1032 
}
1033 
}
 1033 
 
1034 
 
 1034 
/**
1035 
/**
 1035 
  * @brief  Disable Buffer interrupts.
1036 
  * @brief  Disable Buffer interrupts.
 1036 
  * @note   Any of these Buffer events will generate interrupt :
1037 
  * @note   Any of these Buffer events will generate interrupt :
 1037 
  *         Receive buffer not empty (RXNE)
1038 
  *         Receive buffer not empty (RXNE)
 1038 
  *         Transmit buffer empty (TXE)
1039 
  *         Transmit buffer empty (TXE)
 1039 
  * @rmtoll CR2          ITBUFEN       LL_I2C_DisableIT_BUF
1040 
  * @rmtoll CR2          ITBUFEN       LL_I2C_DisableIT_BUF
 1040 
  * @param  I2Cx I2C Instance.
1041 
  * @param  I2Cx I2C Instance.
 1041 
  * @retval None
1042 
  * @retval None
 1042 
  */
1043 
  */
 1043 
__STATIC_INLINE void LL_I2C_DisableIT_BUF(I2C_TypeDef *I2Cx)
1044 
__STATIC_INLINE void LL_I2C_DisableIT_BUF(I2C_TypeDef *I2Cx)
 1044 
{
1045 
{
 1045 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_ITBUFEN);
1046 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_ITBUFEN);
 1046 
}
1047 
}
 1047 
 
1048 
 
 1048 
/**
1049 
/**
 1049 
  * @brief  Check if Buffer interrupts are enabled or disabled.
1050 
  * @brief  Check if Buffer interrupts are enabled or disabled.
 1050 
  * @rmtoll CR2          ITBUFEN       LL_I2C_IsEnabledIT_BUF
1051 
  * @rmtoll CR2          ITBUFEN       LL_I2C_IsEnabledIT_BUF
 1051 
  * @param  I2Cx I2C Instance.
1052 
  * @param  I2Cx I2C Instance.
 1052 
  * @retval State of bit (1 or 0).
1053 
  * @retval State of bit (1 or 0).
 1053 
  */
1054 
  */
 1054 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_BUF(I2C_TypeDef *I2Cx)
1055 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_BUF(I2C_TypeDef *I2Cx)
 1055 
{
1056 
{
 1056 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_ITBUFEN) == (I2C_CR2_ITBUFEN));
1057 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_ITBUFEN) == (I2C_CR2_ITBUFEN));
 1057 
}
1058 
}
 1058 
 
1059 
 
 1059 
/**
1060 
/**
 1060 
  * @brief  Enable Error interrupts.
1061 
  * @brief  Enable Error interrupts.
 1061 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
1062 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 1062 
  *         SMBus feature is supported by the I2Cx Instance.
1063 
  *         SMBus feature is supported by the I2Cx Instance.
 1063 
  * @note   Any of these errors will generate interrupt :
1064 
  * @note   Any of these errors will generate interrupt :
 1064 
  *         Bus Error detection (BERR)
1065 
  *         Bus Error detection (BERR)
 1065 
  *         Arbitration Loss (ARLO)
1066 
  *         Arbitration Loss (ARLO)
 1066 
  *         Acknowledge Failure(AF)
1067 
  *         Acknowledge Failure(AF)
 1067 
  *         Overrun/Underrun (OVR)
1068 
  *         Overrun/Underrun (OVR)
 1068 
  *         SMBus Timeout detection (TIMEOUT)
1069 
  *         SMBus Timeout detection (TIMEOUT)
 1069 
  *         SMBus PEC error detection (PECERR)
1070 
  *         SMBus PEC error detection (PECERR)
 1070 
  *         SMBus Alert pin event detection (SMBALERT)
1071 
  *         SMBus Alert pin event detection (SMBALERT)
 1071 
  * @rmtoll CR2          ITERREN       LL_I2C_EnableIT_ERR
1072 
  * @rmtoll CR2          ITERREN       LL_I2C_EnableIT_ERR
 1072 
  * @param  I2Cx I2C Instance.
1073 
  * @param  I2Cx I2C Instance.
 1073 
  * @retval None
1074 
  * @retval None
 1074 
  */
1075 
  */
 1075 
__STATIC_INLINE void LL_I2C_EnableIT_ERR(I2C_TypeDef *I2Cx)
1076 
__STATIC_INLINE void LL_I2C_EnableIT_ERR(I2C_TypeDef *I2Cx)
 1076 
{
1077 
{
 1077 
  SET_BIT(I2Cx->CR2, I2C_CR2_ITERREN);
1078 
  SET_BIT(I2Cx->CR2, I2C_CR2_ITERREN);
 1078 
}
1079 
}
 1079 
 
1080 
 
 1080 
/**
1081 
/**
 1081 
  * @brief  Disable Error interrupts.
1082 
  * @brief  Disable Error interrupts.
 1082 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
1083 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 1083 
  *         SMBus feature is supported by the I2Cx Instance.
1084 
  *         SMBus feature is supported by the I2Cx Instance.
 1084 
  * @note   Any of these errors will generate interrupt :
1085 
  * @note   Any of these errors will generate interrupt :
 1085 
  *         Bus Error detection (BERR)
1086 
  *         Bus Error detection (BERR)
 1086 
  *         Arbitration Loss (ARLO)
1087 
  *         Arbitration Loss (ARLO)
 1087 
  *         Acknowledge Failure(AF)
1088 
  *         Acknowledge Failure(AF)
 1088 
  *         Overrun/Underrun (OVR)
1089 
  *         Overrun/Underrun (OVR)
 1089 
  *         SMBus Timeout detection (TIMEOUT)
1090 
  *         SMBus Timeout detection (TIMEOUT)
 1090 
  *         SMBus PEC error detection (PECERR)
1091 
  *         SMBus PEC error detection (PECERR)
 1091 
  *         SMBus Alert pin event detection (SMBALERT)
1092 
  *         SMBus Alert pin event detection (SMBALERT)
 1092 
  * @rmtoll CR2          ITERREN       LL_I2C_DisableIT_ERR
1093 
  * @rmtoll CR2          ITERREN       LL_I2C_DisableIT_ERR
 1093 
  * @param  I2Cx I2C Instance.
1094 
  * @param  I2Cx I2C Instance.
 1094 
  * @retval None
1095 
  * @retval None
 1095 
  */
1096 
  */
 1096 
__STATIC_INLINE void LL_I2C_DisableIT_ERR(I2C_TypeDef *I2Cx)
1097 
__STATIC_INLINE void LL_I2C_DisableIT_ERR(I2C_TypeDef *I2Cx)
 1097 
{
1098 
{
 1098 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_ITERREN);
1099 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_ITERREN);
 1099 
}
1100 
}
 1100 
 
1101 
 
 1101 
/**
1102 
/**
 1102 
  * @brief  Check if Error interrupts are enabled or disabled.
1103 
  * @brief  Check if Error interrupts are enabled or disabled.
 1103 
  * @rmtoll CR2          ITERREN       LL_I2C_IsEnabledIT_ERR
1104 
  * @rmtoll CR2          ITERREN       LL_I2C_IsEnabledIT_ERR
 1104 
  * @param  I2Cx I2C Instance.
1105 
  * @param  I2Cx I2C Instance.
 1105 
  * @retval State of bit (1 or 0).
1106 
  * @retval State of bit (1 or 0).
 1106 
  */
1107 
  */
 1107 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_ERR(I2C_TypeDef *I2Cx)
1108 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_ERR(I2C_TypeDef *I2Cx)
 1108 
{
1109 
{
 1109 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_ITERREN) == (I2C_CR2_ITERREN));
1110 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_ITERREN) == (I2C_CR2_ITERREN));
 1110 
}
1111 
}
 1111 
 
1112 
 
 1112 
/**
1113 
/**
 1113 
  * @}
1114 
  * @}
 1114 
  */
1115 
  */
 1115 
 
1116 
 
 1116 
/** @defgroup I2C_LL_EF_FLAG_management FLAG_management
1117 
/** @defgroup I2C_LL_EF_FLAG_management FLAG_management
 1117 
  * @{
1118 
  * @{
 1118 
  */
1119 
  */
 1119 
 
1120 
 
 1120 
/**
1121 
/**
 1121 
  * @brief  Indicate the status of Transmit data register empty flag.
1122 
  * @brief  Indicate the status of Transmit data register empty flag.
 1122 
  * @note   RESET: When next data is written in Transmit data register.
1123 
  * @note   RESET: When next data is written in Transmit data register.
 1123 
  *         SET: When Transmit data register is empty.
1124 
  *         SET: When Transmit data register is empty.
 1124 
  * @rmtoll SR1          TXE           LL_I2C_IsActiveFlag_TXE
1125 
  * @rmtoll SR1          TXE           LL_I2C_IsActiveFlag_TXE
 1125 
  * @param  I2Cx I2C Instance.
1126 
  * @param  I2Cx I2C Instance.
 1126 
  * @retval State of bit (1 or 0).
1127 
  * @retval State of bit (1 or 0).
 1127 
  */
1128 
  */
 1128 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_TXE(I2C_TypeDef *I2Cx)
1129 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_TXE(I2C_TypeDef *I2Cx)
 1129 
{
1130 
{
 1130 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_TXE) == (I2C_SR1_TXE));
1131 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_TXE) == (I2C_SR1_TXE));
 1131 
}
1132 
}
 1132 
 
1133 
 
 1133 
/**
1134 
/**
 1134 
  * @brief  Indicate the status of Byte Transfer Finished flag.
1135 
  * @brief  Indicate the status of Byte Transfer Finished flag.
 1135 
  *         RESET: When Data byte transfer not done.
1136 
  *         RESET: When Data byte transfer not done.
 1136 
  *         SET: When Data byte transfer succeeded.
1137 
  *         SET: When Data byte transfer succeeded.
 1137 
  * @rmtoll SR1          BTF           LL_I2C_IsActiveFlag_BTF
1138 
  * @rmtoll SR1          BTF           LL_I2C_IsActiveFlag_BTF
 1138 
  * @param  I2Cx I2C Instance.
1139 
  * @param  I2Cx I2C Instance.
 1139 
  * @retval State of bit (1 or 0).
1140 
  * @retval State of bit (1 or 0).
 1140 
  */
1141 
  */
 1141 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_BTF(I2C_TypeDef *I2Cx)
1142 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_BTF(I2C_TypeDef *I2Cx)
 1142 
{
1143 
{
 1143 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_BTF) == (I2C_SR1_BTF));
1144 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_BTF) == (I2C_SR1_BTF));
 1144 
}
1145 
}
 1145 
 
1146 
 
 1146 
/**
1147 
/**
 1147 
  * @brief  Indicate the status of Receive data register not empty flag.
1148 
  * @brief  Indicate the status of Receive data register not empty flag.
 1148 
  * @note   RESET: When Receive data register is read.
1149 
  * @note   RESET: When Receive data register is read.
 1149 
  *         SET: When the received data is copied in Receive data register.
1150 
  *         SET: When the received data is copied in Receive data register.
 1150 
  * @rmtoll SR1          RXNE          LL_I2C_IsActiveFlag_RXNE
1151 
  * @rmtoll SR1          RXNE          LL_I2C_IsActiveFlag_RXNE
 1151 
  * @param  I2Cx I2C Instance.
1152 
  * @param  I2Cx I2C Instance.
 1152 
  * @retval State of bit (1 or 0).
1153 
  * @retval State of bit (1 or 0).
 1153 
  */
1154 
  */
 1154 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_RXNE(I2C_TypeDef *I2Cx)
1155 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_RXNE(I2C_TypeDef *I2Cx)
 1155 
{
1156 
{
 1156 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_RXNE) == (I2C_SR1_RXNE));
1157 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_RXNE) == (I2C_SR1_RXNE));
 1157 
}
1158 
}
 1158 
 
1159 
 
 1159 
/**
1160 
/**
 1160 
  * @brief  Indicate the status of Start Bit (master mode).
1161 
  * @brief  Indicate the status of Start Bit (master mode).
 1161 
  * @note   RESET: When No Start condition.
1162 
  * @note   RESET: When No Start condition.
 1162 
  *         SET: When Start condition is generated.
1163 
  *         SET: When Start condition is generated.
 1163 
  * @rmtoll SR1          SB            LL_I2C_IsActiveFlag_SB
1164 
  * @rmtoll SR1          SB            LL_I2C_IsActiveFlag_SB
 1164 
  * @param  I2Cx I2C Instance.
1165 
  * @param  I2Cx I2C Instance.
 1165 
  * @retval State of bit (1 or 0).
1166 
  * @retval State of bit (1 or 0).
 1166 
  */
1167 
  */
 1167 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_SB(I2C_TypeDef *I2Cx)
1168 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_SB(I2C_TypeDef *I2Cx)
 1168 
{
1169 
{
 1169 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_SB) == (I2C_SR1_SB));
1170 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_SB) == (I2C_SR1_SB));
 1170 
}
1171 
}
 1171 
 
1172 
 
 1172 
/**
1173 
/**
 1173 
  * @brief  Indicate the status of Address sent (master mode) or Address matched flag (slave mode).
1174 
  * @brief  Indicate the status of Address sent (master mode) or Address matched flag (slave mode).
 1174 
  * @note   RESET: Clear default value.
1175 
  * @note   RESET: Clear default value.
 1175 
  *         SET: When the address is fully sent (master mode) or when the received slave address matched with one of the enabled slave address (slave mode).
1176 
  *         SET: When the address is fully sent (master mode) or when the received slave address matched with one of the enabled slave address (slave mode).
 1176 
  * @rmtoll SR1          ADDR          LL_I2C_IsActiveFlag_ADDR
1177 
  * @rmtoll SR1          ADDR          LL_I2C_IsActiveFlag_ADDR
 1177 
  * @param  I2Cx I2C Instance.
1178 
  * @param  I2Cx I2C Instance.
 1178 
  * @retval State of bit (1 or 0).
1179 
  * @retval State of bit (1 or 0).
 1179 
  */
1180 
  */
 1180 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_ADDR(I2C_TypeDef *I2Cx)
1181 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_ADDR(I2C_TypeDef *I2Cx)
 1181 
{
1182 
{
 1182 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_ADDR) == (I2C_SR1_ADDR));
1183 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_ADDR) == (I2C_SR1_ADDR));
 1183 
}
1184 
}
 1184 
 
1185 
 
 1185 
/**
1186 
/**
 1186 
  * @brief  Indicate the status of 10-bit header sent (master mode).
1187 
  * @brief  Indicate the status of 10-bit header sent (master mode).
 1187 
  * @note   RESET: When no ADD10 event occurred.
1188 
  * @note   RESET: When no ADD10 event occurred.
 1188 
  *         SET: When the master has sent the first address byte (header).
1189 
  *         SET: When the master has sent the first address byte (header).
 1189 
  * @rmtoll SR1          ADD10         LL_I2C_IsActiveFlag_ADD10
1190 
  * @rmtoll SR1          ADD10         LL_I2C_IsActiveFlag_ADD10
 1190 
  * @param  I2Cx I2C Instance.
1191 
  * @param  I2Cx I2C Instance.
 1191 
  * @retval State of bit (1 or 0).
1192 
  * @retval State of bit (1 or 0).
 1192 
  */
1193 
  */
 1193 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_ADD10(I2C_TypeDef *I2Cx)
1194 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_ADD10(I2C_TypeDef *I2Cx)
 1194 
{
1195 
{
 1195 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_ADD10) == (I2C_SR1_ADD10));
1196 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_ADD10) == (I2C_SR1_ADD10));
 1196 
}
1197 
}
 1197 
 
1198 
 
 1198 
/**
1199 
/**
 1199 
  * @brief  Indicate the status of Acknowledge failure flag.
1200 
  * @brief  Indicate the status of Acknowledge failure flag.
 1200 
  * @note   RESET: No acknowledge failure.
1201 
  * @note   RESET: No acknowledge failure.
 1201 
  *         SET: When an acknowledge failure is received after a byte transmission.
1202 
  *         SET: When an acknowledge failure is received after a byte transmission.
 1202 
  * @rmtoll SR1          AF            LL_I2C_IsActiveFlag_AF
1203 
  * @rmtoll SR1          AF            LL_I2C_IsActiveFlag_AF
 1203 
  * @param  I2Cx I2C Instance.
1204 
  * @param  I2Cx I2C Instance.
 1204 
  * @retval State of bit (1 or 0).
1205 
  * @retval State of bit (1 or 0).
 1205 
  */
1206 
  */
 1206 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_AF(I2C_TypeDef *I2Cx)
1207 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_AF(I2C_TypeDef *I2Cx)
 1207 
{
1208 
{
 1208 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_AF) == (I2C_SR1_AF));
1209 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_AF) == (I2C_SR1_AF));
 1209 
}
1210 
}
 1210 
 
1211 
 
 1211 
/**
1212 
/**
 1212 
  * @brief  Indicate the status of Stop detection flag (slave mode).
1213 
  * @brief  Indicate the status of Stop detection flag (slave mode).
 1213 
  * @note   RESET: Clear default value.
1214 
  * @note   RESET: Clear default value.
 1214 
  *         SET: When a Stop condition is detected.
1215 
  *         SET: When a Stop condition is detected.
 1215 
  * @rmtoll SR1          STOPF         LL_I2C_IsActiveFlag_STOP
1216 
  * @rmtoll SR1          STOPF         LL_I2C_IsActiveFlag_STOP
 1216 
  * @param  I2Cx I2C Instance.
1217 
  * @param  I2Cx I2C Instance.
 1217 
  * @retval State of bit (1 or 0).
1218 
  * @retval State of bit (1 or 0).
 1218 
  */
1219 
  */
 1219 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_STOP(I2C_TypeDef *I2Cx)
1220 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_STOP(I2C_TypeDef *I2Cx)
 1220 
{
1221 
{
 1221 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_STOPF) == (I2C_SR1_STOPF));
1222 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_STOPF) == (I2C_SR1_STOPF));
 1222 
}
1223 
}
 1223 
 
1224 
 
 1224 
/**
1225 
/**
 1225 
  * @brief  Indicate the status of Bus error flag.
1226 
  * @brief  Indicate the status of Bus error flag.
 1226 
  * @note   RESET: Clear default value.
1227 
  * @note   RESET: Clear default value.
 1227 
  *         SET: When a misplaced Start or Stop condition is detected.
1228 
  *         SET: When a misplaced Start or Stop condition is detected.
 1228 
  * @rmtoll SR1          BERR          LL_I2C_IsActiveFlag_BERR
1229 
  * @rmtoll SR1          BERR          LL_I2C_IsActiveFlag_BERR
 1229 
  * @param  I2Cx I2C Instance.
1230 
  * @param  I2Cx I2C Instance.
 1230 
  * @retval State of bit (1 or 0).
1231 
  * @retval State of bit (1 or 0).
 1231 
  */
1232 
  */
 1232 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_BERR(I2C_TypeDef *I2Cx)
1233 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_BERR(I2C_TypeDef *I2Cx)
 1233 
{
1234 
{
 1234 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_BERR) == (I2C_SR1_BERR));
1235 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_BERR) == (I2C_SR1_BERR));
 1235 
}
1236 
}
 1236 
 
1237 
 
 1237 
/**
1238 
/**
 1238 
  * @brief  Indicate the status of Arbitration lost flag.
1239 
  * @brief  Indicate the status of Arbitration lost flag.
 1239 
  * @note   RESET: Clear default value.
1240 
  * @note   RESET: Clear default value.
 1240 
  *         SET: When arbitration lost.
1241 
  *         SET: When arbitration lost.
 1241 
  * @rmtoll SR1          ARLO          LL_I2C_IsActiveFlag_ARLO
1242 
  * @rmtoll SR1          ARLO          LL_I2C_IsActiveFlag_ARLO
 1242 
  * @param  I2Cx I2C Instance.
1243 
  * @param  I2Cx I2C Instance.
 1243 
  * @retval State of bit (1 or 0).
1244 
  * @retval State of bit (1 or 0).
 1244 
  */
1245 
  */
 1245 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_ARLO(I2C_TypeDef *I2Cx)
1246 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_ARLO(I2C_TypeDef *I2Cx)
 1246 
{
1247 
{
 1247 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_ARLO) == (I2C_SR1_ARLO));
1248 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_ARLO) == (I2C_SR1_ARLO));
 1248 
}
1249 
}
 1249 
 
1250 
 
 1250 
/**
1251 
/**
 1251 
  * @brief  Indicate the status of Overrun/Underrun flag.
1252 
  * @brief  Indicate the status of Overrun/Underrun flag.
 1252 
  * @note   RESET: Clear default value.
1253 
  * @note   RESET: Clear default value.
 1253 
  *         SET: When an overrun/underrun error occurs (Clock Stretching Disabled).
1254 
  *         SET: When an overrun/underrun error occurs (Clock Stretching Disabled).
 1254 
  * @rmtoll SR1          OVR           LL_I2C_IsActiveFlag_OVR
1255 
  * @rmtoll SR1          OVR           LL_I2C_IsActiveFlag_OVR
 1255 
  * @param  I2Cx I2C Instance.
1256 
  * @param  I2Cx I2C Instance.
 1256 
  * @retval State of bit (1 or 0).
1257 
  * @retval State of bit (1 or 0).
 1257 
  */
1258 
  */
 1258 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_OVR(I2C_TypeDef *I2Cx)
1259 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_OVR(I2C_TypeDef *I2Cx)
 1259 
{
1260 
{
 1260 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_OVR) == (I2C_SR1_OVR));
1261 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_OVR) == (I2C_SR1_OVR));
 1261 
}
1262 
}
 1262 
 
1263 
 
 1263 
/**
1264 
/**
 1264 
  * @brief  Indicate the status of SMBus PEC error flag in reception.
1265 
  * @brief  Indicate the status of SMBus PEC error flag in reception.
 1265 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
1266 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 1266 
  *         SMBus feature is supported by the I2Cx Instance.
1267 
  *         SMBus feature is supported by the I2Cx Instance.
 1267 
  * @rmtoll SR1          PECERR        LL_I2C_IsActiveSMBusFlag_PECERR
1268 
  * @rmtoll SR1          PECERR        LL_I2C_IsActiveSMBusFlag_PECERR
 1268 
  * @param  I2Cx I2C Instance.
1269 
  * @param  I2Cx I2C Instance.
 1269 
  * @retval State of bit (1 or 0).
1270 
  * @retval State of bit (1 or 0).
 1270 
  */
1271 
  */
 1271 
__STATIC_INLINE uint32_t LL_I2C_IsActiveSMBusFlag_PECERR(I2C_TypeDef *I2Cx)
1272 
__STATIC_INLINE uint32_t LL_I2C_IsActiveSMBusFlag_PECERR(I2C_TypeDef *I2Cx)
 1272 
{
1273 
{
 1273 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_PECERR) == (I2C_SR1_PECERR));
1274 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_PECERR) == (I2C_SR1_PECERR));
 1274 
}
1275 
}
 1275 
 
1276 
 
 1276 
/**
1277 
/**
 1277 
  * @brief  Indicate the status of SMBus Timeout detection flag.
1278 
  * @brief  Indicate the status of SMBus Timeout detection flag.
 1278 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
1279 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 1279 
  *         SMBus feature is supported by the I2Cx Instance.
1280 
  *         SMBus feature is supported by the I2Cx Instance.
 1280 
  * @rmtoll SR1          TIMEOUT       LL_I2C_IsActiveSMBusFlag_TIMEOUT
1281 
  * @rmtoll SR1          TIMEOUT       LL_I2C_IsActiveSMBusFlag_TIMEOUT
 1281 
  * @param  I2Cx I2C Instance.
1282 
  * @param  I2Cx I2C Instance.
 1282 
  * @retval State of bit (1 or 0).
1283 
  * @retval State of bit (1 or 0).
 1283 
  */
1284 
  */
 1284 
__STATIC_INLINE uint32_t LL_I2C_IsActiveSMBusFlag_TIMEOUT(I2C_TypeDef *I2Cx)
1285 
__STATIC_INLINE uint32_t LL_I2C_IsActiveSMBusFlag_TIMEOUT(I2C_TypeDef *I2Cx)
 1285 
{
1286 
{
 1286 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_TIMEOUT) == (I2C_SR1_TIMEOUT));
1287 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_TIMEOUT) == (I2C_SR1_TIMEOUT));
 1287 
}
1288 
}
 1288 
 
1289 
 
 1289 
/**
1290 
/**
 1290 
  * @brief  Indicate the status of SMBus alert flag.
1291 
  * @brief  Indicate the status of SMBus alert flag.
 1291 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
1292 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 1292 
  *         SMBus feature is supported by the I2Cx Instance.
1293 
  *         SMBus feature is supported by the I2Cx Instance.
 1293 
  * @rmtoll SR1          SMBALERT      LL_I2C_IsActiveSMBusFlag_ALERT
1294 
  * @rmtoll SR1          SMBALERT      LL_I2C_IsActiveSMBusFlag_ALERT
 1294 
  * @param  I2Cx I2C Instance.
1295 
  * @param  I2Cx I2C Instance.
 1295 
  * @retval State of bit (1 or 0).
1296 
  * @retval State of bit (1 or 0).
 1296 
  */
1297 
  */
 1297 
__STATIC_INLINE uint32_t LL_I2C_IsActiveSMBusFlag_ALERT(I2C_TypeDef *I2Cx)
1298 
__STATIC_INLINE uint32_t LL_I2C_IsActiveSMBusFlag_ALERT(I2C_TypeDef *I2Cx)
 1298 
{
1299 
{
 1299 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_SMBALERT) == (I2C_SR1_SMBALERT));
1300 
  return (READ_BIT(I2Cx->SR1, I2C_SR1_SMBALERT) == (I2C_SR1_SMBALERT));
 1300 
}
1301 
}
 1301 
 
1302 
 
 1302 
/**
1303 
/**
 1303 
  * @brief  Indicate the status of Bus Busy flag.
1304 
  * @brief  Indicate the status of Bus Busy flag.
 1304 
  * @note   RESET: Clear default value.
1305 
  * @note   RESET: Clear default value.
 1305 
  *         SET: When a Start condition is detected.
1306 
  *         SET: When a Start condition is detected.
 1306 
  * @rmtoll SR2          BUSY          LL_I2C_IsActiveFlag_BUSY
1307 
  * @rmtoll SR2          BUSY          LL_I2C_IsActiveFlag_BUSY
 1307 
  * @param  I2Cx I2C Instance.
1308 
  * @param  I2Cx I2C Instance.
 1308 
  * @retval State of bit (1 or 0).
1309 
  * @retval State of bit (1 or 0).
 1309 
  */
1310 
  */
 1310 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_BUSY(I2C_TypeDef *I2Cx)
1311 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_BUSY(I2C_TypeDef *I2Cx)
 1311 
{
1312 
{
 1312 
  return (READ_BIT(I2Cx->SR2, I2C_SR2_BUSY) == (I2C_SR2_BUSY));
1313 
  return (READ_BIT(I2Cx->SR2, I2C_SR2_BUSY) == (I2C_SR2_BUSY));
 1313 
}
1314 
}
 1314 
 
1315 
 
 1315 
/**
1316 
/**
 1316 
  * @brief  Indicate the status of Dual flag.
1317 
  * @brief  Indicate the status of Dual flag.
 1317 
  * @note   RESET: Received address matched with OAR1.
1318 
  * @note   RESET: Received address matched with OAR1.
 1318 
  *         SET: Received address matched with OAR2.
1319 
  *         SET: Received address matched with OAR2.
 1319 
  * @rmtoll SR2          DUALF         LL_I2C_IsActiveFlag_DUAL
1320 
  * @rmtoll SR2          DUALF         LL_I2C_IsActiveFlag_DUAL
 1320 
  * @param  I2Cx I2C Instance.
1321 
  * @param  I2Cx I2C Instance.
 1321 
  * @retval State of bit (1 or 0).
1322 
  * @retval State of bit (1 or 0).
 1322 
  */
1323 
  */
 1323 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_DUAL(I2C_TypeDef *I2Cx)
1324 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_DUAL(I2C_TypeDef *I2Cx)
 1324 
{
1325 
{
 1325 
  return (READ_BIT(I2Cx->SR2, I2C_SR2_DUALF) == (I2C_SR2_DUALF));
1326 
  return (READ_BIT(I2Cx->SR2, I2C_SR2_DUALF) == (I2C_SR2_DUALF));
 1326 
}
1327 
}
 1327 
 
1328 
 
 1328 
/**
1329 
/**
 1329 
  * @brief  Indicate the status of SMBus Host address reception (Slave mode).
1330 
  * @brief  Indicate the status of SMBus Host address reception (Slave mode).
 1330 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
1331 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 1331 
  *         SMBus feature is supported by the I2Cx Instance.
1332 
  *         SMBus feature is supported by the I2Cx Instance.
 1332 
  * @note   RESET: No SMBus Host address
1333 
  * @note   RESET: No SMBus Host address
 1333 
  *         SET: SMBus Host address received.
1334 
  *         SET: SMBus Host address received.
 1334 
  * @note   This status is cleared by hardware after a STOP condition or repeated START condition.
1335 
  * @note   This status is cleared by hardware after a STOP condition or repeated START condition.
 1335 
  * @rmtoll SR2          SMBHOST       LL_I2C_IsActiveSMBusFlag_SMBHOST
1336 
  * @rmtoll SR2          SMBHOST       LL_I2C_IsActiveSMBusFlag_SMBHOST
 1336 
  * @param  I2Cx I2C Instance.
1337 
  * @param  I2Cx I2C Instance.
 1337 
  * @retval State of bit (1 or 0).
1338 
  * @retval State of bit (1 or 0).
 1338 
  */
1339 
  */
 1339 
__STATIC_INLINE uint32_t LL_I2C_IsActiveSMBusFlag_SMBHOST(I2C_TypeDef *I2Cx)
1340 
__STATIC_INLINE uint32_t LL_I2C_IsActiveSMBusFlag_SMBHOST(I2C_TypeDef *I2Cx)
 1340 
{
1341 
{
 1341 
  return (READ_BIT(I2Cx->SR2, I2C_SR2_SMBHOST) == (I2C_SR2_SMBHOST));
1342 
  return (READ_BIT(I2Cx->SR2, I2C_SR2_SMBHOST) == (I2C_SR2_SMBHOST));
 1342 
}
1343 
}
 1343 
 
1344 
 
 1344 
/**
1345 
/**
 1345 
  * @brief  Indicate the status of SMBus Device default address reception (Slave mode).
1346 
  * @brief  Indicate the status of SMBus Device default address reception (Slave mode).
 1346 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
1347 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 1347 
  *         SMBus feature is supported by the I2Cx Instance.
1348 
  *         SMBus feature is supported by the I2Cx Instance.
 1348 
  * @note   RESET: No SMBus Device default address
1349 
  * @note   RESET: No SMBus Device default address
 1349 
  *         SET: SMBus Device default address received.
1350 
  *         SET: SMBus Device default address received.
 1350 
  * @note   This status is cleared by hardware after a STOP condition or repeated START condition.
1351 
  * @note   This status is cleared by hardware after a STOP condition or repeated START condition.
 1351 
  * @rmtoll SR2          SMBDEFAULT    LL_I2C_IsActiveSMBusFlag_SMBDEFAULT
1352 
  * @rmtoll SR2          SMBDEFAULT    LL_I2C_IsActiveSMBusFlag_SMBDEFAULT
 1352 
  * @param  I2Cx I2C Instance.
1353 
  * @param  I2Cx I2C Instance.
 1353 
  * @retval State of bit (1 or 0).
1354 
  * @retval State of bit (1 or 0).
 1354 
  */
1355 
  */
 1355 
__STATIC_INLINE uint32_t LL_I2C_IsActiveSMBusFlag_SMBDEFAULT(I2C_TypeDef *I2Cx)
1356 
__STATIC_INLINE uint32_t LL_I2C_IsActiveSMBusFlag_SMBDEFAULT(I2C_TypeDef *I2Cx)
 1356 
{
1357 
{
 1357 
  return (READ_BIT(I2Cx->SR2, I2C_SR2_SMBDEFAULT) == (I2C_SR2_SMBDEFAULT));
1358 
  return (READ_BIT(I2Cx->SR2, I2C_SR2_SMBDEFAULT) == (I2C_SR2_SMBDEFAULT));
 1358 
}
1359 
}
 1359 
 
1360 
 
 1360 
/**
1361 
/**
 1361 
  * @brief  Indicate the status of General call address reception (Slave mode).
1362 
  * @brief  Indicate the status of General call address reception (Slave mode).
 1362 
  * @note   RESET: No General call address
1363 
  * @note   RESET: No General call address
 1363 
  *         SET: General call address received.
1364 
  *         SET: General call address received.
 1364 
  * @note   This status is cleared by hardware after a STOP condition or repeated START condition.
1365 
  * @note   This status is cleared by hardware after a STOP condition or repeated START condition.
 1365 
  * @rmtoll SR2          GENCALL       LL_I2C_IsActiveFlag_GENCALL
1366 
  * @rmtoll SR2          GENCALL       LL_I2C_IsActiveFlag_GENCALL
 1366 
  * @param  I2Cx I2C Instance.
1367 
  * @param  I2Cx I2C Instance.
 1367 
  * @retval State of bit (1 or 0).
1368 
  * @retval State of bit (1 or 0).
 1368 
  */
1369 
  */
 1369 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_GENCALL(I2C_TypeDef *I2Cx)
1370 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_GENCALL(I2C_TypeDef *I2Cx)
 1370 
{
1371 
{
 1371 
  return (READ_BIT(I2Cx->SR2, I2C_SR2_GENCALL) == (I2C_SR2_GENCALL));
1372 
  return (READ_BIT(I2Cx->SR2, I2C_SR2_GENCALL) == (I2C_SR2_GENCALL));
 1372 
}
1373 
}
 1373 
 
1374 
 
 1374 
/**
1375 
/**
 1375 
  * @brief  Indicate the status of Master/Slave flag.
1376 
  * @brief  Indicate the status of Master/Slave flag.
 1376 
  * @note   RESET: Slave Mode.
1377 
  * @note   RESET: Slave Mode.
 1377 
  *         SET: Master Mode.
1378 
  *         SET: Master Mode.
 1378 
  * @rmtoll SR2          MSL           LL_I2C_IsActiveFlag_MSL
1379 
  * @rmtoll SR2          MSL           LL_I2C_IsActiveFlag_MSL
 1379 
  * @param  I2Cx I2C Instance.
1380 
  * @param  I2Cx I2C Instance.
 1380 
  * @retval State of bit (1 or 0).
1381 
  * @retval State of bit (1 or 0).
 1381 
  */
1382 
  */
 1382 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_MSL(I2C_TypeDef *I2Cx)
1383 
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_MSL(I2C_TypeDef *I2Cx)
 1383 
{
1384 
{
 1384 
  return (READ_BIT(I2Cx->SR2, I2C_SR2_MSL) == (I2C_SR2_MSL));
1385 
  return (READ_BIT(I2Cx->SR2, I2C_SR2_MSL) == (I2C_SR2_MSL));
 1385 
}
1386 
}
 1386 
 
1387 
 
 1387 
/**
1388 
/**
 1388 
  * @brief  Clear Address Matched flag.
1389 
  * @brief  Clear Address Matched flag.
 1389 
  * @note   Clearing this flag is done by a read access to the I2Cx_SR1
1390 
  * @note   Clearing this flag is done by a read access to the I2Cx_SR1
 1390 
  *         register followed by a read access to the I2Cx_SR2 register.
1391 
  *         register followed by a read access to the I2Cx_SR2 register.
 1391 
  * @rmtoll SR1          ADDR          LL_I2C_ClearFlag_ADDR
1392 
  * @rmtoll SR1          ADDR          LL_I2C_ClearFlag_ADDR
 1392 
  * @param  I2Cx I2C Instance.
1393 
  * @param  I2Cx I2C Instance.
 1393 
  * @retval None
1394 
  * @retval None
 1394 
  */
1395 
  */
 1395 
__STATIC_INLINE void LL_I2C_ClearFlag_ADDR(I2C_TypeDef *I2Cx)
1396 
__STATIC_INLINE void LL_I2C_ClearFlag_ADDR(I2C_TypeDef *I2Cx)
 1396 
{
1397 
{
 1397 
  __IO uint32_t tmpreg;
1398 
  __IO uint32_t tmpreg;
 1398 
  tmpreg = I2Cx->SR1;
1399 
  tmpreg = I2Cx->SR1;
 1399 
  (void) tmpreg;
1400 
  (void) tmpreg;
 1400 
  tmpreg = I2Cx->SR2;
1401 
  tmpreg = I2Cx->SR2;
 1401 
  (void) tmpreg;
1402 
  (void) tmpreg;
 1402 
}
1403 
}
 1403 
 
1404 
 
 1404 
/**
1405 
/**
 1405 
  * @brief  Clear Acknowledge failure flag.
1406 
  * @brief  Clear Acknowledge failure flag.
 1406 
  * @rmtoll SR1          AF            LL_I2C_ClearFlag_AF
1407 
  * @rmtoll SR1          AF            LL_I2C_ClearFlag_AF
 1407 
  * @param  I2Cx I2C Instance.
1408 
  * @param  I2Cx I2C Instance.
 1408 
  * @retval None
1409 
  * @retval None
 1409 
  */
1410 
  */
 1410 
__STATIC_INLINE void LL_I2C_ClearFlag_AF(I2C_TypeDef *I2Cx)
1411 
__STATIC_INLINE void LL_I2C_ClearFlag_AF(I2C_TypeDef *I2Cx)
 1411 
{
1412 
{
 1412 
  CLEAR_BIT(I2Cx->SR1, I2C_SR1_AF);
1413 
  CLEAR_BIT(I2Cx->SR1, I2C_SR1_AF);
 1413 
}
1414 
}
 1414 
 
1415 
 
 1415 
/**
1416 
/**
 1416 
  * @brief  Clear Stop detection flag.
1417 
  * @brief  Clear Stop detection flag.
 1417 
  * @note   Clearing this flag is done by a read access to the I2Cx_SR1
1418 
  * @note   Clearing this flag is done by a read access to the I2Cx_SR1
 1418 
  *         register followed by a write access to I2Cx_CR1 register.
1419 
  *         register followed by a write access to I2Cx_CR1 register.
 1419 
  * @rmtoll SR1          STOPF         LL_I2C_ClearFlag_STOP\n
1420 
  * @rmtoll SR1          STOPF         LL_I2C_ClearFlag_STOP\n
 1420 
  *         CR1          PE            LL_I2C_ClearFlag_STOP
1421 
  *         CR1          PE            LL_I2C_ClearFlag_STOP
 1421 
  * @param  I2Cx I2C Instance.
1422 
  * @param  I2Cx I2C Instance.
 1422 
  * @retval None
1423 
  * @retval None
 1423 
  */
1424 
  */
 1424 
__STATIC_INLINE void LL_I2C_ClearFlag_STOP(I2C_TypeDef *I2Cx)
1425 
__STATIC_INLINE void LL_I2C_ClearFlag_STOP(I2C_TypeDef *I2Cx)
 1425 
{
1426 
{
 1426 
  __IO uint32_t tmpreg;
1427 
  __IO uint32_t tmpreg;
 1427 
  tmpreg = I2Cx->SR1;
1428 
  tmpreg = I2Cx->SR1;
 1428 
  (void) tmpreg;
1429 
  (void) tmpreg;
 1429 
  SET_BIT(I2Cx->CR1, I2C_CR1_PE);
1430 
  SET_BIT(I2Cx->CR1, I2C_CR1_PE);
 1430 
}
1431 
}
 1431 
 
1432 
 
 1432 
/**
1433 
/**
 1433 
  * @brief  Clear Bus error flag.
1434 
  * @brief  Clear Bus error flag.
 1434 
  * @rmtoll SR1          BERR          LL_I2C_ClearFlag_BERR
1435 
  * @rmtoll SR1          BERR          LL_I2C_ClearFlag_BERR
 1435 
  * @param  I2Cx I2C Instance.
1436 
  * @param  I2Cx I2C Instance.
 1436 
  * @retval None
1437 
  * @retval None
 1437 
  */
1438 
  */
 1438 
__STATIC_INLINE void LL_I2C_ClearFlag_BERR(I2C_TypeDef *I2Cx)
1439 
__STATIC_INLINE void LL_I2C_ClearFlag_BERR(I2C_TypeDef *I2Cx)
 1439 
{
1440 
{
 1440 
  CLEAR_BIT(I2Cx->SR1, I2C_SR1_BERR);
1441 
  CLEAR_BIT(I2Cx->SR1, I2C_SR1_BERR);
 1441 
}
1442 
}
 1442 
 
1443 
 
 1443 
/**
1444 
/**
 1444 
  * @brief  Clear Arbitration lost flag.
1445 
  * @brief  Clear Arbitration lost flag.
 1445 
  * @rmtoll SR1          ARLO          LL_I2C_ClearFlag_ARLO
1446 
  * @rmtoll SR1          ARLO          LL_I2C_ClearFlag_ARLO
 1446 
  * @param  I2Cx I2C Instance.
1447 
  * @param  I2Cx I2C Instance.
 1447 
  * @retval None
1448 
  * @retval None
 1448 
  */
1449 
  */
 1449 
__STATIC_INLINE void LL_I2C_ClearFlag_ARLO(I2C_TypeDef *I2Cx)
1450 
__STATIC_INLINE void LL_I2C_ClearFlag_ARLO(I2C_TypeDef *I2Cx)
 1450 
{
1451 
{
 1451 
  CLEAR_BIT(I2Cx->SR1, I2C_SR1_ARLO);
1452 
  CLEAR_BIT(I2Cx->SR1, I2C_SR1_ARLO);
 1452 
}
1453 
}
 1453 
 
1454 
 
 1454 
/**
1455 
/**
 1455 
  * @brief  Clear Overrun/Underrun flag.
1456 
  * @brief  Clear Overrun/Underrun flag.
 1456 
  * @rmtoll SR1          OVR           LL_I2C_ClearFlag_OVR
1457 
  * @rmtoll SR1          OVR           LL_I2C_ClearFlag_OVR
 1457 
  * @param  I2Cx I2C Instance.
1458 
  * @param  I2Cx I2C Instance.
 1458 
  * @retval None
1459 
  * @retval None
 1459 
  */
1460 
  */
 1460 
__STATIC_INLINE void LL_I2C_ClearFlag_OVR(I2C_TypeDef *I2Cx)
1461 
__STATIC_INLINE void LL_I2C_ClearFlag_OVR(I2C_TypeDef *I2Cx)
 1461 
{
1462 
{
 1462 
  CLEAR_BIT(I2Cx->SR1, I2C_SR1_OVR);
1463 
  CLEAR_BIT(I2Cx->SR1, I2C_SR1_OVR);
 1463 
}
1464 
}
 1464 
 
1465 
 
 1465 
/**
1466 
/**
 1466 
  * @brief  Clear SMBus PEC error flag.
1467 
  * @brief  Clear SMBus PEC error flag.
 1467 
  * @rmtoll SR1          PECERR        LL_I2C_ClearSMBusFlag_PECERR
1468 
  * @rmtoll SR1          PECERR        LL_I2C_ClearSMBusFlag_PECERR
 1468 
  * @param  I2Cx I2C Instance.
1469 
  * @param  I2Cx I2C Instance.
 1469 
  * @retval None
1470 
  * @retval None
 1470 
  */
1471 
  */
 1471 
__STATIC_INLINE void LL_I2C_ClearSMBusFlag_PECERR(I2C_TypeDef *I2Cx)
1472 
__STATIC_INLINE void LL_I2C_ClearSMBusFlag_PECERR(I2C_TypeDef *I2Cx)
 1472 
{
1473 
{
 1473 
  CLEAR_BIT(I2Cx->SR1, I2C_SR1_PECERR);
1474 
  CLEAR_BIT(I2Cx->SR1, I2C_SR1_PECERR);
 1474 
}
1475 
}
 1475 
 
1476 
 
 1476 
/**
1477 
/**
 1477 
  * @brief  Clear SMBus Timeout detection flag.
1478 
  * @brief  Clear SMBus Timeout detection flag.
 1478 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
1479 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 1479 
  *         SMBus feature is supported by the I2Cx Instance.
1480 
  *         SMBus feature is supported by the I2Cx Instance.
 1480 
  * @rmtoll SR1          TIMEOUT       LL_I2C_ClearSMBusFlag_TIMEOUT
1481 
  * @rmtoll SR1          TIMEOUT       LL_I2C_ClearSMBusFlag_TIMEOUT
 1481 
  * @param  I2Cx I2C Instance.
1482 
  * @param  I2Cx I2C Instance.
 1482 
  * @retval None
1483 
  * @retval None
 1483 
  */
1484 
  */
 1484 
__STATIC_INLINE void LL_I2C_ClearSMBusFlag_TIMEOUT(I2C_TypeDef *I2Cx)
1485 
__STATIC_INLINE void LL_I2C_ClearSMBusFlag_TIMEOUT(I2C_TypeDef *I2Cx)
 1485 
{
1486 
{
 1486 
  CLEAR_BIT(I2Cx->SR1, I2C_SR1_TIMEOUT);
1487 
  CLEAR_BIT(I2Cx->SR1, I2C_SR1_TIMEOUT);
 1487 
}
1488 
}
 1488 
 
1489 
 
 1489 
/**
1490 
/**
 1490 
  * @brief  Clear SMBus Alert flag.
1491 
  * @brief  Clear SMBus Alert flag.
 1491 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
1492 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 1492 
  *         SMBus feature is supported by the I2Cx Instance.
1493 
  *         SMBus feature is supported by the I2Cx Instance.
 1493 
  * @rmtoll SR1          SMBALERT      LL_I2C_ClearSMBusFlag_ALERT
1494 
  * @rmtoll SR1          SMBALERT      LL_I2C_ClearSMBusFlag_ALERT
 1494 
  * @param  I2Cx I2C Instance.
1495 
  * @param  I2Cx I2C Instance.
 1495 
  * @retval None
1496 
  * @retval None
 1496 
  */
1497 
  */
 1497 
__STATIC_INLINE void LL_I2C_ClearSMBusFlag_ALERT(I2C_TypeDef *I2Cx)
1498 
__STATIC_INLINE void LL_I2C_ClearSMBusFlag_ALERT(I2C_TypeDef *I2Cx)
 1498 
{
1499 
{
 1499 
  CLEAR_BIT(I2Cx->SR1, I2C_SR1_SMBALERT);
1500 
  CLEAR_BIT(I2Cx->SR1, I2C_SR1_SMBALERT);
 1500 
}
1501 
}
 1501 
 
1502 
 
 1502 
/**
1503 
/**
 1503 
  * @}
1504 
  * @}
 1504 
  */
1505 
  */
 1505 
 
1506 
 
 1506 
/** @defgroup I2C_LL_EF_Data_Management Data_Management
1507 
/** @defgroup I2C_LL_EF_Data_Management Data_Management
 1507 
  * @{
1508 
  * @{
 1508 
  */
1509 
  */
 1509 
 
1510 
 
 1510 
/**
1511 
/**
 1511 
  * @brief  Enable Reset of I2C peripheral.
1512 
  * @brief  Enable Reset of I2C peripheral.
 1512 
  * @rmtoll CR1          SWRST         LL_I2C_EnableReset
1513 
  * @rmtoll CR1          SWRST         LL_I2C_EnableReset
 1513 
  * @param  I2Cx I2C Instance.
1514 
  * @param  I2Cx I2C Instance.
 1514 
  * @retval None
1515 
  * @retval None
 1515 
  */
1516 
  */
 1516 
__STATIC_INLINE void LL_I2C_EnableReset(I2C_TypeDef *I2Cx)
1517 
__STATIC_INLINE void LL_I2C_EnableReset(I2C_TypeDef *I2Cx)
 1517 
{
1518 
{
 1518 
  SET_BIT(I2Cx->CR1, I2C_CR1_SWRST);
1519 
  SET_BIT(I2Cx->CR1, I2C_CR1_SWRST);
 1519 
}
1520 
}
 1520 
 
1521 
 
 1521 
/**
1522 
/**
 1522 
  * @brief  Disable Reset of I2C peripheral.
1523 
  * @brief  Disable Reset of I2C peripheral.
 1523 
  * @rmtoll CR1          SWRST         LL_I2C_DisableReset
1524 
  * @rmtoll CR1          SWRST         LL_I2C_DisableReset
 1524 
  * @param  I2Cx I2C Instance.
1525 
  * @param  I2Cx I2C Instance.
 1525 
  * @retval None
1526 
  * @retval None
 1526 
  */
1527 
  */
 1527 
__STATIC_INLINE void LL_I2C_DisableReset(I2C_TypeDef *I2Cx)
1528 
__STATIC_INLINE void LL_I2C_DisableReset(I2C_TypeDef *I2Cx)
 1528 
{
1529 
{
 1529 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_SWRST);
1530 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_SWRST);
 1530 
}
1531 
}
 1531 
 
1532 
 
 1532 
/**
1533 
/**
 1533 
  * @brief  Check if the I2C peripheral is under reset state or not.
1534 
  * @brief  Check if the I2C peripheral is under reset state or not.
 1534 
  * @rmtoll CR1          SWRST         LL_I2C_IsResetEnabled
1535 
  * @rmtoll CR1          SWRST         LL_I2C_IsResetEnabled
 1535 
  * @param  I2Cx I2C Instance.
1536 
  * @param  I2Cx I2C Instance.
 1536 
  * @retval State of bit (1 or 0).
1537 
  * @retval State of bit (1 or 0).
 1537 
  */
1538 
  */
 1538 
__STATIC_INLINE uint32_t LL_I2C_IsResetEnabled(I2C_TypeDef *I2Cx)
1539 
__STATIC_INLINE uint32_t LL_I2C_IsResetEnabled(I2C_TypeDef *I2Cx)
 1539 
{
1540 
{
 1540 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_SWRST) == (I2C_CR1_SWRST));
1541 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_SWRST) == (I2C_CR1_SWRST));
 1541 
}
1542 
}
 1542 
 
1543 
 
 1543 
/**
1544 
/**
 1544 
  * @brief  Prepare the generation of a ACKnowledge or Non ACKnowledge condition after the address receive match code or next received byte.
1545 
  * @brief  Prepare the generation of a ACKnowledge or Non ACKnowledge condition after the address receive match code or next received byte.
 1545 
  * @note   Usage in Slave or Master mode.
1546 
  * @note   Usage in Slave or Master mode.
 1546 
  * @rmtoll CR1          ACK           LL_I2C_AcknowledgeNextData
1547 
  * @rmtoll CR1          ACK           LL_I2C_AcknowledgeNextData
 1547 
  * @param  I2Cx I2C Instance.
1548 
  * @param  I2Cx I2C Instance.
 1548 
  * @param  TypeAcknowledge This parameter can be one of the following values:
1549 
  * @param  TypeAcknowledge This parameter can be one of the following values:
 1549 
  *         @arg @ref LL_I2C_ACK
1550 
  *         @arg @ref LL_I2C_ACK
 1550 
  *         @arg @ref LL_I2C_NACK
1551 
  *         @arg @ref LL_I2C_NACK
 1551 
  * @retval None
1552 
  * @retval None
 1552 
  */
1553 
  */
 1553 
__STATIC_INLINE void LL_I2C_AcknowledgeNextData(I2C_TypeDef *I2Cx, uint32_t TypeAcknowledge)
1554 
__STATIC_INLINE void LL_I2C_AcknowledgeNextData(I2C_TypeDef *I2Cx, uint32_t TypeAcknowledge)
 1554 
{
1555 
{
 1555 
  MODIFY_REG(I2Cx->CR1, I2C_CR1_ACK, TypeAcknowledge);
1556 
  MODIFY_REG(I2Cx->CR1, I2C_CR1_ACK, TypeAcknowledge);
 1556 
}
1557 
}
 1557 
 
1558 
 
 1558 
/**
1559 
/**
 1559 
  * @brief  Generate a START or RESTART condition
1560 
  * @brief  Generate a START or RESTART condition
 1560 
  * @note   The START bit can be set even if bus is BUSY or I2C is in slave mode.
1561 
  * @note   The START bit can be set even if bus is BUSY or I2C is in slave mode.
 1561 
  *         This action has no effect when RELOAD is set.
1562 
  *         This action has no effect when RELOAD is set.
 1562 
  * @rmtoll CR1          START         LL_I2C_GenerateStartCondition
1563 
  * @rmtoll CR1          START         LL_I2C_GenerateStartCondition
 1563 
  * @param  I2Cx I2C Instance.
1564 
  * @param  I2Cx I2C Instance.
 1564 
  * @retval None
1565 
  * @retval None
 1565 
  */
1566 
  */
 1566 
__STATIC_INLINE void LL_I2C_GenerateStartCondition(I2C_TypeDef *I2Cx)
1567 
__STATIC_INLINE void LL_I2C_GenerateStartCondition(I2C_TypeDef *I2Cx)
 1567 
{
1568 
{
 1568 
  SET_BIT(I2Cx->CR1, I2C_CR1_START);
1569 
  SET_BIT(I2Cx->CR1, I2C_CR1_START);
 1569 
}
1570 
}
 1570 
 
1571 
 
 1571 
/**
1572 
/**
 1572 
  * @brief  Generate a STOP condition after the current byte transfer (master mode).
1573 
  * @brief  Generate a STOP condition after the current byte transfer (master mode).
 1573 
  * @rmtoll CR1          STOP          LL_I2C_GenerateStopCondition
1574 
  * @rmtoll CR1          STOP          LL_I2C_GenerateStopCondition
 1574 
  * @param  I2Cx I2C Instance.
1575 
  * @param  I2Cx I2C Instance.
 1575 
  * @retval None
1576 
  * @retval None
 1576 
  */
1577 
  */
 1577 
__STATIC_INLINE void LL_I2C_GenerateStopCondition(I2C_TypeDef *I2Cx)
1578 
__STATIC_INLINE void LL_I2C_GenerateStopCondition(I2C_TypeDef *I2Cx)
 1578 
{
1579 
{
 1579 
  SET_BIT(I2Cx->CR1, I2C_CR1_STOP);
1580 
  SET_BIT(I2Cx->CR1, I2C_CR1_STOP);
 1580 
}
1581 
}
 1581 
 
1582 
 
 1582 
/**
1583 
/**
 1583 
  * @brief  Enable bit POS (master/host mode).
1584 
  * @brief  Enable bit POS (master/host mode).
 1584 
  * @note   In that case, the ACK bit controls the (N)ACK of the next byte received or the PEC bit indicates that the next byte in shift register is a PEC.
1585 
  * @note   In that case, the ACK bit controls the (N)ACK of the next byte received or the PEC bit indicates that the next byte in shift register is a PEC.
 1585 
  * @rmtoll CR1          POS           LL_I2C_EnableBitPOS
1586 
  * @rmtoll CR1          POS           LL_I2C_EnableBitPOS
 1586 
  * @param  I2Cx I2C Instance.
1587 
  * @param  I2Cx I2C Instance.
 1587 
  * @retval None
1588 
  * @retval None
 1588 
  */
1589 
  */
 1589 
__STATIC_INLINE void LL_I2C_EnableBitPOS(I2C_TypeDef *I2Cx)
1590 
__STATIC_INLINE void LL_I2C_EnableBitPOS(I2C_TypeDef *I2Cx)
 1590 
{
1591 
{
 1591 
  SET_BIT(I2Cx->CR1, I2C_CR1_POS);
1592 
  SET_BIT(I2Cx->CR1, I2C_CR1_POS);
 1592 
}
1593 
}
 1593 
 
1594 
 
 1594 
/**
1595 
/**
 1595 
  * @brief  Disable bit POS (master/host mode).
1596 
  * @brief  Disable bit POS (master/host mode).
 1596 
  * @note   In that case, the ACK bit controls the (N)ACK of the current byte received or the PEC bit indicates that the current byte in shift register is a PEC.
1597 
  * @note   In that case, the ACK bit controls the (N)ACK of the current byte received or the PEC bit indicates that the current byte in shift register is a PEC.
 1597 
  * @rmtoll CR1          POS           LL_I2C_DisableBitPOS
1598 
  * @rmtoll CR1          POS           LL_I2C_DisableBitPOS
 1598 
  * @param  I2Cx I2C Instance.
1599 
  * @param  I2Cx I2C Instance.
 1599 
  * @retval None
1600 
  * @retval None
 1600 
  */
1601 
  */
 1601 
__STATIC_INLINE void LL_I2C_DisableBitPOS(I2C_TypeDef *I2Cx)
1602 
__STATIC_INLINE void LL_I2C_DisableBitPOS(I2C_TypeDef *I2Cx)
 1602 
{
1603 
{
 1603 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_POS);
1604 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_POS);
 1604 
}
1605 
}
 1605 
 
1606 
 
 1606 
/**
1607 
/**
 1607 
  * @brief  Check if bit POS  is enabled or disabled.
1608 
  * @brief  Check if bit POS  is enabled or disabled.
 1608 
  * @rmtoll CR1          POS           LL_I2C_IsEnabledBitPOS
1609 
  * @rmtoll CR1          POS           LL_I2C_IsEnabledBitPOS
 1609 
  * @param  I2Cx I2C Instance.
1610 
  * @param  I2Cx I2C Instance.
 1610 
  * @retval State of bit (1 or 0).
1611 
  * @retval State of bit (1 or 0).
 1611 
  */
1612 
  */
 1612 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledBitPOS(I2C_TypeDef *I2Cx)
1613 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledBitPOS(I2C_TypeDef *I2Cx)
 1613 
{
1614 
{
 1614 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_POS) == (I2C_CR1_POS));
1615 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_POS) == (I2C_CR1_POS));
 1615 
}
1616 
}
 1616 
 
1617 
 
 1617 
/**
1618 
/**
 1618 
  * @brief  Indicate the value of transfer direction.
1619 
  * @brief  Indicate the value of transfer direction.
 1619 
  * @note   RESET: Bus is in read transfer (peripheral point of view).
1620 
  * @note   RESET: Bus is in read transfer (peripheral point of view).
 1620 
  *         SET: Bus is in write transfer (peripheral point of view).
1621 
  *         SET: Bus is in write transfer (peripheral point of view).
 1621 
  * @rmtoll SR2          TRA           LL_I2C_GetTransferDirection
1622 
  * @rmtoll SR2          TRA           LL_I2C_GetTransferDirection
 1622 
  * @param  I2Cx I2C Instance.
1623 
  * @param  I2Cx I2C Instance.
 1623 
  * @retval Returned value can be one of the following values:
1624 
  * @retval Returned value can be one of the following values:
 1624 
  *         @arg @ref LL_I2C_DIRECTION_WRITE
1625 
  *         @arg @ref LL_I2C_DIRECTION_WRITE
 1625 
  *         @arg @ref LL_I2C_DIRECTION_READ
1626 
  *         @arg @ref LL_I2C_DIRECTION_READ
 1626 
  */
1627 
  */
 1627 
__STATIC_INLINE uint32_t LL_I2C_GetTransferDirection(I2C_TypeDef *I2Cx)
1628 
__STATIC_INLINE uint32_t LL_I2C_GetTransferDirection(I2C_TypeDef *I2Cx)
 1628 
{
1629 
{
 1629 
  return (uint32_t)(READ_BIT(I2Cx->SR2, I2C_SR2_TRA));
1630 
  return (uint32_t)(READ_BIT(I2Cx->SR2, I2C_SR2_TRA));
 1630 
}
1631 
}
 1631 
 
1632 
 
 1632 
/**
1633 
/**
 1633 
  * @brief  Enable DMA last transfer.
1634 
  * @brief  Enable DMA last transfer.
 1634 
  * @note   This action mean that next DMA EOT is the last transfer.
1635 
  * @note   This action mean that next DMA EOT is the last transfer.
 1635 
  * @rmtoll CR2          LAST          LL_I2C_EnableLastDMA
1636 
  * @rmtoll CR2          LAST          LL_I2C_EnableLastDMA
 1636 
  * @param  I2Cx I2C Instance.
1637 
  * @param  I2Cx I2C Instance.
 1637 
  * @retval None
1638 
  * @retval None
 1638 
  */
1639 
  */
 1639 
__STATIC_INLINE void LL_I2C_EnableLastDMA(I2C_TypeDef *I2Cx)
1640 
__STATIC_INLINE void LL_I2C_EnableLastDMA(I2C_TypeDef *I2Cx)
 1640 
{
1641 
{
 1641 
  SET_BIT(I2Cx->CR2, I2C_CR2_LAST);
1642 
  SET_BIT(I2Cx->CR2, I2C_CR2_LAST);
 1642 
}
1643 
}
 1643 
 
1644 
 
 1644 
/**
1645 
/**
 1645 
  * @brief  Disable DMA last transfer.
1646 
  * @brief  Disable DMA last transfer.
 1646 
  * @note   This action mean that next DMA EOT is not the last transfer.
1647 
  * @note   This action mean that next DMA EOT is not the last transfer.
 1647 
  * @rmtoll CR2          LAST          LL_I2C_DisableLastDMA
1648 
  * @rmtoll CR2          LAST          LL_I2C_DisableLastDMA
 1648 
  * @param  I2Cx I2C Instance.
1649 
  * @param  I2Cx I2C Instance.
 1649 
  * @retval None
1650 
  * @retval None
 1650 
  */
1651 
  */
 1651 
__STATIC_INLINE void LL_I2C_DisableLastDMA(I2C_TypeDef *I2Cx)
1652 
__STATIC_INLINE void LL_I2C_DisableLastDMA(I2C_TypeDef *I2Cx)
 1652 
{
1653 
{
 1653 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_LAST);
1654 
  CLEAR_BIT(I2Cx->CR2, I2C_CR2_LAST);
 1654 
}
1655 
}
 1655 
 
1656 
 
 1656 
/**
1657 
/**
 1657 
  * @brief  Check if DMA last transfer is enabled or disabled.
1658 
  * @brief  Check if DMA last transfer is enabled or disabled.
 1658 
  * @rmtoll CR2          LAST          LL_I2C_IsEnabledLastDMA
1659 
  * @rmtoll CR2          LAST          LL_I2C_IsEnabledLastDMA
 1659 
  * @param  I2Cx I2C Instance.
1660 
  * @param  I2Cx I2C Instance.
 1660 
  * @retval State of bit (1 or 0).
1661 
  * @retval State of bit (1 or 0).
 1661 
  */
1662 
  */
 1662 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledLastDMA(I2C_TypeDef *I2Cx)
1663 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledLastDMA(I2C_TypeDef *I2Cx)
 1663 
{
1664 
{
 1664 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_LAST) == (I2C_CR2_LAST));
1665 
  return (READ_BIT(I2Cx->CR2, I2C_CR2_LAST) == (I2C_CR2_LAST));
 1665 
}
1666 
}
 1666 
 
1667 
 
 1667 
/**
1668 
/**
 1668 
  * @brief  Enable transfer or internal comparison of the SMBus Packet Error byte (transmission or reception mode).
1669 
  * @brief  Enable transfer or internal comparison of the SMBus Packet Error byte (transmission or reception mode).
 1669 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
1670 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 1670 
  *         SMBus feature is supported by the I2Cx Instance.
1671 
  *         SMBus feature is supported by the I2Cx Instance.
 1671 
  * @note   This feature is cleared by hardware when the PEC byte is transferred or compared,
1672 
  * @note   This feature is cleared by hardware when the PEC byte is transferred or compared,
 1672 
  *         or by a START or STOP condition, it is also cleared by software.
1673 
  *         or by a START or STOP condition, it is also cleared by software.
 1673 
  * @rmtoll CR1          PEC           LL_I2C_EnableSMBusPECCompare
1674 
  * @rmtoll CR1          PEC           LL_I2C_EnableSMBusPECCompare
 1674 
  * @param  I2Cx I2C Instance.
1675 
  * @param  I2Cx I2C Instance.
 1675 
  * @retval None
1676 
  * @retval None
 1676 
  */
1677 
  */
 1677 
__STATIC_INLINE void LL_I2C_EnableSMBusPECCompare(I2C_TypeDef *I2Cx)
1678 
__STATIC_INLINE void LL_I2C_EnableSMBusPECCompare(I2C_TypeDef *I2Cx)
 1678 
{
1679 
{
 1679 
  SET_BIT(I2Cx->CR1, I2C_CR1_PEC);
1680 
  SET_BIT(I2Cx->CR1, I2C_CR1_PEC);
 1680 
}
1681 
}
 1681 
 
1682 
 
 1682 
/**
1683 
/**
 1683 
  * @brief  Disable transfer or internal comparison of the SMBus Packet Error byte (transmission or reception mode).
1684 
  * @brief  Disable transfer or internal comparison of the SMBus Packet Error byte (transmission or reception mode).
 1684 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
1685 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 1685 
  *         SMBus feature is supported by the I2Cx Instance.
1686 
  *         SMBus feature is supported by the I2Cx Instance.
 1686 
  * @rmtoll CR1          PEC           LL_I2C_DisableSMBusPECCompare
1687 
  * @rmtoll CR1          PEC           LL_I2C_DisableSMBusPECCompare
 1687 
  * @param  I2Cx I2C Instance.
1688 
  * @param  I2Cx I2C Instance.
 1688 
  * @retval None
1689 
  * @retval None
 1689 
  */
1690 
  */
 1690 
__STATIC_INLINE void LL_I2C_DisableSMBusPECCompare(I2C_TypeDef *I2Cx)
1691 
__STATIC_INLINE void LL_I2C_DisableSMBusPECCompare(I2C_TypeDef *I2Cx)
 1691 
{
1692 
{
 1692 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_PEC);
1693 
  CLEAR_BIT(I2Cx->CR1, I2C_CR1_PEC);
 1693 
}
1694 
}
 1694 
 
1695 
 
 1695 
/**
1696 
/**
 1696 
  * @brief  Check if the SMBus Packet Error byte transfer or internal comparison is requested or not.
1697 
  * @brief  Check if the SMBus Packet Error byte transfer or internal comparison is requested or not.
 1697 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
1698 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 1698 
  *         SMBus feature is supported by the I2Cx Instance.
1699 
  *         SMBus feature is supported by the I2Cx Instance.
 1699 
  * @rmtoll CR1          PEC           LL_I2C_IsEnabledSMBusPECCompare
1700 
  * @rmtoll CR1          PEC           LL_I2C_IsEnabledSMBusPECCompare
 1700 
  * @param  I2Cx I2C Instance.
1701 
  * @param  I2Cx I2C Instance.
 1701 
  * @retval State of bit (1 or 0).
1702 
  * @retval State of bit (1 or 0).
 1702 
  */
1703 
  */
 1703 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusPECCompare(I2C_TypeDef *I2Cx)
1704 
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusPECCompare(I2C_TypeDef *I2Cx)
 1704 
{
1705 
{
 1705 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_PEC) == (I2C_CR1_PEC));
1706 
  return (READ_BIT(I2Cx->CR1, I2C_CR1_PEC) == (I2C_CR1_PEC));
 1706 
}
1707 
}
 1707 
 
1708 
 
 1708 
/**
1709 
/**
 1709 
  * @brief  Get the SMBus Packet Error byte calculated.
1710 
  * @brief  Get the SMBus Packet Error byte calculated.
 1710 
  * @note   Macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
1711 
  * @note   Macro @ref IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
 1711 
  *         SMBus feature is supported by the I2Cx Instance.
1712 
  *         SMBus feature is supported by the I2Cx Instance.
 1712 
  * @rmtoll SR2          PEC           LL_I2C_GetSMBusPEC
1713 
  * @rmtoll SR2          PEC           LL_I2C_GetSMBusPEC
 1713 
  * @param  I2Cx I2C Instance.
1714 
  * @param  I2Cx I2C Instance.
 1714 
  * @retval Value between Min_Data=0x00 and Max_Data=0xFF
1715 
  * @retval Value between Min_Data=0x00 and Max_Data=0xFF
 1715 
  */
1716 
  */
 1716 
__STATIC_INLINE uint32_t LL_I2C_GetSMBusPEC(I2C_TypeDef *I2Cx)
1717 
__STATIC_INLINE uint32_t LL_I2C_GetSMBusPEC(I2C_TypeDef *I2Cx)
 1717 
{
1718 
{
 1718 
  return (uint32_t)(READ_BIT(I2Cx->SR2, I2C_SR2_PEC) >> I2C_SR2_PEC_Pos);
1719 
  return (uint32_t)(READ_BIT(I2Cx->SR2, I2C_SR2_PEC) >> I2C_SR2_PEC_Pos);
 1719 
}
1720 
}
 1720 
 
1721 
 
 1721 
/**
1722 
/**
 1722 
  * @brief  Read Receive Data register.
1723 
  * @brief  Read Receive Data register.
 1723 
  * @rmtoll DR           DR            LL_I2C_ReceiveData8
1724 
  * @rmtoll DR           DR            LL_I2C_ReceiveData8
 1724 
  * @param  I2Cx I2C Instance.
1725 
  * @param  I2Cx I2C Instance.
 1725 
  * @retval Value between Min_Data=0x0 and Max_Data=0xFF
1726 
  * @retval Value between Min_Data=0x0 and Max_Data=0xFF
 1726 
  */
1727 
  */
 1727 
__STATIC_INLINE uint8_t LL_I2C_ReceiveData8(I2C_TypeDef *I2Cx)
1728 
__STATIC_INLINE uint8_t LL_I2C_ReceiveData8(I2C_TypeDef *I2Cx)
 1728 
{
1729 
{
 1729 
  return (uint8_t)(READ_BIT(I2Cx->DR, I2C_DR_DR));
1730 
  return (uint8_t)(READ_BIT(I2Cx->DR, I2C_DR_DR));
 1730 
}
1731 
}
 1731 
 
1732 
 
 1732 
/**
1733 
/**
 1733 
  * @brief  Write in Transmit Data Register .
1734 
  * @brief  Write in Transmit Data Register .
 1734 
  * @rmtoll DR           DR            LL_I2C_TransmitData8
1735 
  * @rmtoll DR           DR            LL_I2C_TransmitData8
 1735 
  * @param  I2Cx I2C Instance.
1736 
  * @param  I2Cx I2C Instance.
 1736 
  * @param  Data Value between Min_Data=0x0 and Max_Data=0xFF
1737 
  * @param  Data Value between Min_Data=0x0 and Max_Data=0xFF
 1737 
  * @retval None
1738 
  * @retval None
 1738 
  */
1739 
  */
 1739 
__STATIC_INLINE void LL_I2C_TransmitData8(I2C_TypeDef *I2Cx, uint8_t Data)
1740 
__STATIC_INLINE void LL_I2C_TransmitData8(I2C_TypeDef *I2Cx, uint8_t Data)
 1740 
{
1741 
{
 1741 
  MODIFY_REG(I2Cx->DR, I2C_DR_DR, Data);
1742 
  MODIFY_REG(I2Cx->DR, I2C_DR_DR, Data);
 1742 
}
1743 
}
 1743 
 
1744 
 
 1744 
/**
1745 
/**
 1745 
  * @}
1746 
  * @}
 1746 
  */
1747 
  */
 1747 
 
1748 
 
 1748 
#if defined(USE_FULL_LL_DRIVER)
1749 
#if defined(USE_FULL_LL_DRIVER)
 1749 
/** @defgroup I2C_LL_EF_Init Initialization and de-initialization functions
1750 
/** @defgroup I2C_LL_EF_Init Initialization and de-initialization functions
 1750 
  * @{
1751 
  * @{
 1751 
  */
1752 
  */
 1752 
 
1753 
 
 1753 
uint32_t LL_I2C_Init(I2C_TypeDef *I2Cx, LL_I2C_InitTypeDef *I2C_InitStruct);
1754 
uint32_t LL_I2C_Init(I2C_TypeDef *I2Cx, LL_I2C_InitTypeDef *I2C_InitStruct);
 1754 
uint32_t LL_I2C_DeInit(I2C_TypeDef *I2Cx);
1755 
uint32_t LL_I2C_DeInit(I2C_TypeDef *I2Cx);
 1755 
void LL_I2C_StructInit(LL_I2C_InitTypeDef *I2C_InitStruct);
1756 
void LL_I2C_StructInit(LL_I2C_InitTypeDef *I2C_InitStruct);
 1756 
 
1757 
 
 1757 
 
1758 
 
 1758 
/**
1759 
/**
 1759 
  * @}
1760 
  * @}
 1760 
  */
1761 
  */
 1761 
#endif /* USE_FULL_LL_DRIVER */
1762 
#endif /* USE_FULL_LL_DRIVER */
 1762 
 
1763 
 
 1763 
/**
1764 
/**
 1764 
  * @}
1765 
  * @}
 1765 
  */
1766 
  */
 1766 
 
1767 
 
 1767 
/**
1768 
/**
 1768 
  * @}
1769 
  * @}
 1769 
  */
1770 
  */
 1770 
 
1771 
 
 1771 
#endif /* I2C1 || I2C2 */
1772 
#endif /* I2C1 || I2C2 */
 1772 
 
1773 
 
 1773 
/**
1774 
/**
 1774 
  * @}
1775 
  * @}
 1775 
  */
1776 
  */
 1776 
 
1777 
 
 1777 
#ifdef __cplusplus
1778 
#ifdef __cplusplus
 1778 
}
1779 
}
 1779 
#endif
1780 
#endif
 1780 
 
1781 
 
 1781 
#endif /* __STM32F1xx_LL_I2C_H */
1782 
#endif /* __STM32F1xx_LL_I2C_H */
 1782 
 
1783 
 
 - 
 
1784 
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
 -