2280 lines
83 KiB
C
2280 lines
83 KiB
C
/**
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******************************************************************************
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* @file stm32l4xx_ll_i2c.h
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* @author MCD Application Team
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* @brief Header file of I2C LL module.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef STM32L4xx_LL_I2C_H
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#define STM32L4xx_LL_I2C_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Includes ------------------------------------------------------------------*/
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#include "stm32l4xx.h"
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/** @addtogroup STM32L4xx_LL_Driver
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* @{
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*/
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#if defined (I2C1) || defined (I2C2) || defined (I2C3) || defined (I2C4)
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/** @defgroup I2C_LL I2C
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* @{
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*/
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/* Private types -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private constants ---------------------------------------------------------*/
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/** @defgroup I2C_LL_Private_Constants I2C Private Constants
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* @{
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*/
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/**
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* @}
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*/
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/* Private macros ------------------------------------------------------------*/
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#if defined(USE_FULL_LL_DRIVER)
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/** @defgroup I2C_LL_Private_Macros I2C Private Macros
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* @{
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*/
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/**
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* @}
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*/
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#endif /*USE_FULL_LL_DRIVER*/
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/* Exported types ------------------------------------------------------------*/
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#if defined(USE_FULL_LL_DRIVER)
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/** @defgroup I2C_LL_ES_INIT I2C Exported Init structure
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* @{
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*/
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typedef struct
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{
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uint32_t PeripheralMode; /*!< Specifies the peripheral mode.
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This parameter can be a value of @ref I2C_LL_EC_PERIPHERAL_MODE.
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This feature can be modified afterwards using unitary function
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@ref LL_I2C_SetMode(). */
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uint32_t Timing; /*!< Specifies the SDA setup, hold time and the SCL high, low period values.
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This parameter must be set by referring to the STM32CubeMX Tool and
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the helper macro @ref __LL_I2C_CONVERT_TIMINGS().
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This feature can be modified afterwards using unitary function
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@ref LL_I2C_SetTiming(). */
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uint32_t AnalogFilter; /*!< Enables or disables analog noise filter.
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This parameter can be a value of @ref I2C_LL_EC_ANALOGFILTER_SELECTION.
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This feature can be modified afterwards using unitary functions
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@ref LL_I2C_EnableAnalogFilter() or LL_I2C_DisableAnalogFilter(). */
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uint32_t DigitalFilter; /*!< Configures the digital noise filter.
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This parameter can be a number between Min_Data = 0x00 and Max_Data = 0x0F.
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This feature can be modified afterwards using unitary function
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@ref LL_I2C_SetDigitalFilter(). */
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uint32_t OwnAddress1; /*!< Specifies the device own address 1.
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This parameter must be a value between Min_Data = 0x00 and Max_Data = 0x3FF.
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This feature can be modified afterwards using unitary function
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@ref LL_I2C_SetOwnAddress1(). */
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uint32_t TypeAcknowledge; /*!< Specifies the ACKnowledge or Non ACKnowledge condition after the address receive
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match code or next received byte.
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This parameter can be a value of @ref I2C_LL_EC_I2C_ACKNOWLEDGE.
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This feature can be modified afterwards using unitary function
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@ref LL_I2C_AcknowledgeNextData(). */
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uint32_t OwnAddrSize; /*!< Specifies the device own address 1 size (7-bit or 10-bit).
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This parameter can be a value of @ref I2C_LL_EC_OWNADDRESS1.
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This feature can be modified afterwards using unitary function
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@ref LL_I2C_SetOwnAddress1(). */
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} LL_I2C_InitTypeDef;
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/**
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* @}
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*/
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#endif /*USE_FULL_LL_DRIVER*/
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/* Exported constants --------------------------------------------------------*/
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/** @defgroup I2C_LL_Exported_Constants I2C Exported Constants
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* @{
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*/
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/** @defgroup I2C_LL_EC_CLEAR_FLAG Clear Flags Defines
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* @brief Flags defines which can be used with LL_I2C_WriteReg function
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* @{
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*/
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#define LL_I2C_ICR_ADDRCF I2C_ICR_ADDRCF /*!< Address Matched flag */
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#define LL_I2C_ICR_NACKCF I2C_ICR_NACKCF /*!< Not Acknowledge flag */
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#define LL_I2C_ICR_STOPCF I2C_ICR_STOPCF /*!< Stop detection flag */
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#define LL_I2C_ICR_BERRCF I2C_ICR_BERRCF /*!< Bus error flag */
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#define LL_I2C_ICR_ARLOCF I2C_ICR_ARLOCF /*!< Arbitration Lost flag */
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#define LL_I2C_ICR_OVRCF I2C_ICR_OVRCF /*!< Overrun/Underrun flag */
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#define LL_I2C_ICR_PECCF I2C_ICR_PECCF /*!< PEC error flag */
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#define LL_I2C_ICR_TIMOUTCF I2C_ICR_TIMOUTCF /*!< Timeout detection flag */
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#define LL_I2C_ICR_ALERTCF I2C_ICR_ALERTCF /*!< Alert flag */
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_GET_FLAG Get Flags Defines
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* @brief Flags defines which can be used with LL_I2C_ReadReg function
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* @{
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*/
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#define LL_I2C_ISR_TXE I2C_ISR_TXE /*!< Transmit data register empty */
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#define LL_I2C_ISR_TXIS I2C_ISR_TXIS /*!< Transmit interrupt status */
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#define LL_I2C_ISR_RXNE I2C_ISR_RXNE /*!< Receive data register not empty */
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#define LL_I2C_ISR_ADDR I2C_ISR_ADDR /*!< Address matched (slave mode) */
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#define LL_I2C_ISR_NACKF I2C_ISR_NACKF /*!< Not Acknowledge received flag */
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#define LL_I2C_ISR_STOPF I2C_ISR_STOPF /*!< Stop detection flag */
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#define LL_I2C_ISR_TC I2C_ISR_TC /*!< Transfer Complete (master mode) */
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#define LL_I2C_ISR_TCR I2C_ISR_TCR /*!< Transfer Complete Reload */
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#define LL_I2C_ISR_BERR I2C_ISR_BERR /*!< Bus error */
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#define LL_I2C_ISR_ARLO I2C_ISR_ARLO /*!< Arbitration lost */
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#define LL_I2C_ISR_OVR I2C_ISR_OVR /*!< Overrun/Underrun (slave mode) */
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#define LL_I2C_ISR_PECERR I2C_ISR_PECERR /*!< PEC Error in reception (SMBus mode) */
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#define LL_I2C_ISR_TIMEOUT I2C_ISR_TIMEOUT /*!< Timeout detection flag (SMBus mode) */
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#define LL_I2C_ISR_ALERT I2C_ISR_ALERT /*!< SMBus alert (SMBus mode) */
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#define LL_I2C_ISR_BUSY I2C_ISR_BUSY /*!< Bus busy */
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_IT IT Defines
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* @brief IT defines which can be used with LL_I2C_ReadReg and LL_I2C_WriteReg functions
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* @{
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*/
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#define LL_I2C_CR1_TXIE I2C_CR1_TXIE /*!< TX Interrupt enable */
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#define LL_I2C_CR1_RXIE I2C_CR1_RXIE /*!< RX Interrupt enable */
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#define LL_I2C_CR1_ADDRIE I2C_CR1_ADDRIE /*!< Address match Interrupt enable (slave only) */
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#define LL_I2C_CR1_NACKIE I2C_CR1_NACKIE /*!< Not acknowledge received Interrupt enable */
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#define LL_I2C_CR1_STOPIE I2C_CR1_STOPIE /*!< STOP detection Interrupt enable */
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#define LL_I2C_CR1_TCIE I2C_CR1_TCIE /*!< Transfer Complete interrupt enable */
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#define LL_I2C_CR1_ERRIE I2C_CR1_ERRIE /*!< Error interrupts enable */
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_PERIPHERAL_MODE Peripheral Mode
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* @{
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*/
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#define LL_I2C_MODE_I2C 0x00000000U /*!< I2C Master or Slave mode */
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#define LL_I2C_MODE_SMBUS_HOST I2C_CR1_SMBHEN /*!< SMBus Host address acknowledge */
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#define LL_I2C_MODE_SMBUS_DEVICE 0x00000000U /*!< SMBus Device default mode
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(Default address not acknowledge) */
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#define LL_I2C_MODE_SMBUS_DEVICE_ARP I2C_CR1_SMBDEN /*!< SMBus Device Default address acknowledge */
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_ANALOGFILTER_SELECTION Analog Filter Selection
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* @{
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*/
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#define LL_I2C_ANALOGFILTER_ENABLE 0x00000000U /*!< Analog filter is enabled. */
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#define LL_I2C_ANALOGFILTER_DISABLE I2C_CR1_ANFOFF /*!< Analog filter is disabled. */
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_ADDRESSING_MODE Master Addressing Mode
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* @{
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*/
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#define LL_I2C_ADDRESSING_MODE_7BIT 0x00000000U /*!< Master operates in 7-bit addressing mode. */
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#define LL_I2C_ADDRESSING_MODE_10BIT I2C_CR2_ADD10 /*!< Master operates in 10-bit addressing mode.*/
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_OWNADDRESS1 Own Address 1 Length
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* @{
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*/
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#define LL_I2C_OWNADDRESS1_7BIT 0x00000000U /*!< Own address 1 is a 7-bit address. */
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#define LL_I2C_OWNADDRESS1_10BIT I2C_OAR1_OA1MODE /*!< Own address 1 is a 10-bit address.*/
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_OWNADDRESS2 Own Address 2 Masks
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* @{
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*/
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#define LL_I2C_OWNADDRESS2_NOMASK I2C_OAR2_OA2NOMASK /*!< Own Address2 No mask. */
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#define LL_I2C_OWNADDRESS2_MASK01 I2C_OAR2_OA2MASK01 /*!< Only Address2 bits[7:2] are compared. */
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#define LL_I2C_OWNADDRESS2_MASK02 I2C_OAR2_OA2MASK02 /*!< Only Address2 bits[7:3] are compared. */
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#define LL_I2C_OWNADDRESS2_MASK03 I2C_OAR2_OA2MASK03 /*!< Only Address2 bits[7:4] are compared. */
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#define LL_I2C_OWNADDRESS2_MASK04 I2C_OAR2_OA2MASK04 /*!< Only Address2 bits[7:5] are compared. */
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#define LL_I2C_OWNADDRESS2_MASK05 I2C_OAR2_OA2MASK05 /*!< Only Address2 bits[7:6] are compared. */
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#define LL_I2C_OWNADDRESS2_MASK06 I2C_OAR2_OA2MASK06 /*!< Only Address2 bits[7] are compared. */
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#define LL_I2C_OWNADDRESS2_MASK07 I2C_OAR2_OA2MASK07 /*!< No comparison is done.
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All Address2 are acknowledged. */
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_I2C_ACKNOWLEDGE Acknowledge Generation
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* @{
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*/
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#define LL_I2C_ACK 0x00000000U /*!< ACK is sent after current received byte. */
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#define LL_I2C_NACK I2C_CR2_NACK /*!< NACK is sent after current received byte.*/
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_ADDRSLAVE Slave Address Length
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* @{
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*/
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#define LL_I2C_ADDRSLAVE_7BIT 0x00000000U /*!< Slave Address in 7-bit. */
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#define LL_I2C_ADDRSLAVE_10BIT I2C_CR2_ADD10 /*!< Slave Address in 10-bit.*/
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_REQUEST Transfer Request Direction
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* @{
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*/
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#define LL_I2C_REQUEST_WRITE 0x00000000U /*!< Master request a write transfer. */
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#define LL_I2C_REQUEST_READ I2C_CR2_RD_WRN /*!< Master request a read transfer. */
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_MODE Transfer End Mode
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* @{
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*/
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#define LL_I2C_MODE_RELOAD I2C_CR2_RELOAD /*!< Enable I2C Reload mode. */
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#define LL_I2C_MODE_AUTOEND I2C_CR2_AUTOEND /*!< Enable I2C Automatic end mode
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with no HW PEC comparison. */
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#define LL_I2C_MODE_SOFTEND 0x00000000U /*!< Enable I2C Software end mode
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with no HW PEC comparison. */
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#define LL_I2C_MODE_SMBUS_RELOAD LL_I2C_MODE_RELOAD /*!< Enable SMBUS Automatic end mode
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with HW PEC comparison. */
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#define LL_I2C_MODE_SMBUS_AUTOEND_NO_PEC LL_I2C_MODE_AUTOEND /*!< Enable SMBUS Automatic end mode
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with HW PEC comparison. */
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#define LL_I2C_MODE_SMBUS_SOFTEND_NO_PEC LL_I2C_MODE_SOFTEND /*!< Enable SMBUS Software end mode
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with HW PEC comparison. */
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#define LL_I2C_MODE_SMBUS_AUTOEND_WITH_PEC (uint32_t)(LL_I2C_MODE_AUTOEND | I2C_CR2_PECBYTE)
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/*!< Enable SMBUS Automatic end mode with HW PEC comparison. */
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#define LL_I2C_MODE_SMBUS_SOFTEND_WITH_PEC (uint32_t)(LL_I2C_MODE_SOFTEND | I2C_CR2_PECBYTE)
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/*!< Enable SMBUS Software end mode with HW PEC comparison. */
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_GENERATE Start And Stop Generation
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* @{
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*/
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#define LL_I2C_GENERATE_NOSTARTSTOP 0x00000000U
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/*!< Don't Generate Stop and Start condition. */
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#define LL_I2C_GENERATE_STOP (uint32_t)(0x80000000U | I2C_CR2_STOP)
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/*!< Generate Stop condition (Size should be set to 0). */
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#define LL_I2C_GENERATE_START_READ (uint32_t)(0x80000000U | I2C_CR2_START | I2C_CR2_RD_WRN)
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/*!< Generate Start for read request. */
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#define LL_I2C_GENERATE_START_WRITE (uint32_t)(0x80000000U | I2C_CR2_START)
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/*!< Generate Start for write request. */
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#define LL_I2C_GENERATE_RESTART_7BIT_READ (uint32_t)(0x80000000U | I2C_CR2_START | I2C_CR2_RD_WRN)
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/*!< Generate Restart for read request, slave 7Bit address. */
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#define LL_I2C_GENERATE_RESTART_7BIT_WRITE (uint32_t)(0x80000000U | I2C_CR2_START)
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/*!< Generate Restart for write request, slave 7Bit address. */
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#define LL_I2C_GENERATE_RESTART_10BIT_READ (uint32_t)(0x80000000U | I2C_CR2_START | \
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I2C_CR2_RD_WRN | I2C_CR2_HEAD10R)
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/*!< Generate Restart for read request, slave 10Bit address. */
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#define LL_I2C_GENERATE_RESTART_10BIT_WRITE (uint32_t)(0x80000000U | I2C_CR2_START)
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/*!< Generate Restart for write request, slave 10Bit address.*/
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_DIRECTION Read Write Direction
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* @{
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*/
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#define LL_I2C_DIRECTION_WRITE 0x00000000U /*!< Write transfer request by master,
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slave enters receiver mode. */
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#define LL_I2C_DIRECTION_READ I2C_ISR_DIR /*!< Read transfer request by master,
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slave enters transmitter mode.*/
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_DMA_REG_DATA DMA Register Data
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* @{
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*/
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#define LL_I2C_DMA_REG_DATA_TRANSMIT 0x00000000U /*!< Get address of data register used for
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transmission */
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#define LL_I2C_DMA_REG_DATA_RECEIVE 0x00000001U /*!< Get address of data register used for
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reception */
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_SMBUS_TIMEOUTA_MODE SMBus TimeoutA Mode SCL SDA Timeout
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* @{
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*/
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#define LL_I2C_SMBUS_TIMEOUTA_MODE_SCL_LOW 0x00000000U /*!< TimeoutA is used to detect
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SCL low level timeout. */
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#define LL_I2C_SMBUS_TIMEOUTA_MODE_SDA_SCL_HIGH I2C_TIMEOUTR_TIDLE /*!< TimeoutA is used to detect
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both SCL and SDA high level timeout.*/
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EC_SMBUS_TIMEOUT_SELECTION SMBus Timeout Selection
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* @{
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*/
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#define LL_I2C_SMBUS_TIMEOUTA I2C_TIMEOUTR_TIMOUTEN /*!< TimeoutA enable bit */
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#define LL_I2C_SMBUS_TIMEOUTB I2C_TIMEOUTR_TEXTEN /*!< TimeoutB (extended clock)
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enable bit */
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#define LL_I2C_SMBUS_ALL_TIMEOUT (uint32_t)(I2C_TIMEOUTR_TIMOUTEN | \
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I2C_TIMEOUTR_TEXTEN) /*!< TimeoutA and TimeoutB
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(extended clock) enable bits */
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/**
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* @}
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*/
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/**
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* @}
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*/
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/* Exported macro ------------------------------------------------------------*/
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/** @defgroup I2C_LL_Exported_Macros I2C Exported Macros
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* @{
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*/
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/** @defgroup I2C_LL_EM_WRITE_READ Common Write and read registers Macros
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* @{
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*/
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/**
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* @brief Write a value in I2C register
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* @param __INSTANCE__ I2C Instance
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* @param __REG__ Register to be written
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* @param __VALUE__ Value to be written in the register
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* @retval None
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*/
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#define LL_I2C_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
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/**
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* @brief Read a value in I2C register
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* @param __INSTANCE__ I2C Instance
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* @param __REG__ Register to be read
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* @retval Register value
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*/
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#define LL_I2C_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
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/**
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* @}
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*/
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/** @defgroup I2C_LL_EM_CONVERT_TIMINGS Convert SDA SCL timings
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* @{
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*/
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/**
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* @brief Configure the SDA setup, hold time and the SCL high, low period.
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* @param __PRESCALER__ This parameter must be a value between Min_Data=0 and Max_Data=0xF.
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* @param __SETUP_TIME__ This parameter must be a value between Min_Data=0 and Max_Data=0xF.
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(tscldel = (SCLDEL+1)xtpresc)
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* @param __HOLD_TIME__ This parameter must be a value between Min_Data=0 and Max_Data=0xF.
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(tsdadel = SDADELxtpresc)
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* @param __SCLH_PERIOD__ This parameter must be a value between Min_Data=0 and Max_Data=0xFF.
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(tsclh = (SCLH+1)xtpresc)
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* @param __SCLL_PERIOD__ This parameter must be a value between Min_Data=0 and Max_Data=0xFF.
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(tscll = (SCLL+1)xtpresc)
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* @retval Value between Min_Data=0 and Max_Data=0xFFFFFFFF
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*/
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#define __LL_I2C_CONVERT_TIMINGS(__PRESCALER__, __SETUP_TIME__, __HOLD_TIME__, __SCLH_PERIOD__, __SCLL_PERIOD__) \
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((((uint32_t)(__PRESCALER__) << I2C_TIMINGR_PRESC_Pos) & I2C_TIMINGR_PRESC) | \
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(((uint32_t)(__SETUP_TIME__) << I2C_TIMINGR_SCLDEL_Pos) & I2C_TIMINGR_SCLDEL) | \
|
|
(((uint32_t)(__HOLD_TIME__) << I2C_TIMINGR_SDADEL_Pos) & I2C_TIMINGR_SDADEL) | \
|
|
(((uint32_t)(__SCLH_PERIOD__) << I2C_TIMINGR_SCLH_Pos) & I2C_TIMINGR_SCLH) | \
|
|
(((uint32_t)(__SCLL_PERIOD__) << I2C_TIMINGR_SCLL_Pos) & I2C_TIMINGR_SCLL))
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/* Exported functions --------------------------------------------------------*/
|
|
/** @defgroup I2C_LL_Exported_Functions I2C Exported Functions
|
|
* @{
|
|
*/
|
|
|
|
/** @defgroup I2C_LL_EF_Configuration Configuration
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Enable I2C peripheral (PE = 1).
|
|
* @rmtoll CR1 PE LL_I2C_Enable
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_Enable(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_PE);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable I2C peripheral (PE = 0).
|
|
* @note When PE = 0, the I2C SCL and SDA lines are released.
|
|
* Internal state machines and status bits are put back to their reset value.
|
|
* When cleared, PE must be kept low for at least 3 APB clock cycles.
|
|
* @rmtoll CR1 PE LL_I2C_Disable
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_Disable(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_PE);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if the I2C peripheral is enabled or disabled.
|
|
* @rmtoll CR1 PE LL_I2C_IsEnabled
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabled(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_PE) == (I2C_CR1_PE)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Configure Noise Filters (Analog and Digital).
|
|
* @note If the analog filter is also enabled, the digital filter is added to analog filter.
|
|
* The filters can only be programmed when the I2C is disabled (PE = 0).
|
|
* @rmtoll CR1 ANFOFF LL_I2C_ConfigFilters\n
|
|
* CR1 DNF LL_I2C_ConfigFilters
|
|
* @param I2Cx I2C Instance.
|
|
* @param AnalogFilter This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_ANALOGFILTER_ENABLE
|
|
* @arg @ref LL_I2C_ANALOGFILTER_DISABLE
|
|
* @param DigitalFilter This parameter must be a value between Min_Data=0x00 (Digital filter disabled)
|
|
and Max_Data=0x0F (Digital filter enabled and filtering capability up to 15*ti2cclk).
|
|
* This parameter is used to configure the digital noise filter on SDA and SCL input.
|
|
* The digital filter will filter spikes with a length of up to DNF[3:0]*ti2cclk.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_ConfigFilters(I2C_TypeDef *I2Cx, uint32_t AnalogFilter, uint32_t DigitalFilter)
|
|
{
|
|
MODIFY_REG(I2Cx->CR1, I2C_CR1_ANFOFF | I2C_CR1_DNF, AnalogFilter | (DigitalFilter << I2C_CR1_DNF_Pos));
|
|
}
|
|
|
|
/**
|
|
* @brief Configure Digital Noise Filter.
|
|
* @note If the analog filter is also enabled, the digital filter is added to analog filter.
|
|
* This filter can only be programmed when the I2C is disabled (PE = 0).
|
|
* @rmtoll CR1 DNF LL_I2C_SetDigitalFilter
|
|
* @param I2Cx I2C Instance.
|
|
* @param DigitalFilter This parameter must be a value between Min_Data=0x00 (Digital filter disabled)
|
|
and Max_Data=0x0F (Digital filter enabled and filtering capability up to 15*ti2cclk).
|
|
* This parameter is used to configure the digital noise filter on SDA and SCL input.
|
|
* The digital filter will filter spikes with a length of up to DNF[3:0]*ti2cclk.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_SetDigitalFilter(I2C_TypeDef *I2Cx, uint32_t DigitalFilter)
|
|
{
|
|
MODIFY_REG(I2Cx->CR1, I2C_CR1_DNF, DigitalFilter << I2C_CR1_DNF_Pos);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the current Digital Noise Filter configuration.
|
|
* @rmtoll CR1 DNF LL_I2C_GetDigitalFilter
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Value between Min_Data=0x0 and Max_Data=0xF
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetDigitalFilter(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->CR1, I2C_CR1_DNF) >> I2C_CR1_DNF_Pos);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable Analog Noise Filter.
|
|
* @note This filter can only be programmed when the I2C is disabled (PE = 0).
|
|
* @rmtoll CR1 ANFOFF LL_I2C_EnableAnalogFilter
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableAnalogFilter(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_ANFOFF);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable Analog Noise Filter.
|
|
* @note This filter can only be programmed when the I2C is disabled (PE = 0).
|
|
* @rmtoll CR1 ANFOFF LL_I2C_DisableAnalogFilter
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableAnalogFilter(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_ANFOFF);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if Analog Noise Filter is enabled or disabled.
|
|
* @rmtoll CR1 ANFOFF LL_I2C_IsEnabledAnalogFilter
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledAnalogFilter(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_ANFOFF) != (I2C_CR1_ANFOFF)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable DMA transmission requests.
|
|
* @rmtoll CR1 TXDMAEN LL_I2C_EnableDMAReq_TX
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableDMAReq_TX(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_TXDMAEN);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable DMA transmission requests.
|
|
* @rmtoll CR1 TXDMAEN LL_I2C_DisableDMAReq_TX
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableDMAReq_TX(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_TXDMAEN);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if DMA transmission requests are enabled or disabled.
|
|
* @rmtoll CR1 TXDMAEN LL_I2C_IsEnabledDMAReq_TX
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledDMAReq_TX(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_TXDMAEN) == (I2C_CR1_TXDMAEN)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable DMA reception requests.
|
|
* @rmtoll CR1 RXDMAEN LL_I2C_EnableDMAReq_RX
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableDMAReq_RX(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_RXDMAEN);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable DMA reception requests.
|
|
* @rmtoll CR1 RXDMAEN LL_I2C_DisableDMAReq_RX
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableDMAReq_RX(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_RXDMAEN);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if DMA reception requests are enabled or disabled.
|
|
* @rmtoll CR1 RXDMAEN LL_I2C_IsEnabledDMAReq_RX
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledDMAReq_RX(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_RXDMAEN) == (I2C_CR1_RXDMAEN)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the data register address used for DMA transfer
|
|
* @rmtoll TXDR TXDATA LL_I2C_DMA_GetRegAddr\n
|
|
* RXDR RXDATA LL_I2C_DMA_GetRegAddr
|
|
* @param I2Cx I2C Instance
|
|
* @param Direction This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_DMA_REG_DATA_TRANSMIT
|
|
* @arg @ref LL_I2C_DMA_REG_DATA_RECEIVE
|
|
* @retval Address of data register
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_DMA_GetRegAddr(const I2C_TypeDef *I2Cx, uint32_t Direction)
|
|
{
|
|
uint32_t data_reg_addr;
|
|
|
|
if (Direction == LL_I2C_DMA_REG_DATA_TRANSMIT)
|
|
{
|
|
/* return address of TXDR register */
|
|
data_reg_addr = (uint32_t) &(I2Cx->TXDR);
|
|
}
|
|
else
|
|
{
|
|
/* return address of RXDR register */
|
|
data_reg_addr = (uint32_t) &(I2Cx->RXDR);
|
|
}
|
|
|
|
return data_reg_addr;
|
|
}
|
|
|
|
/**
|
|
* @brief Enable Clock stretching.
|
|
* @note This bit can only be programmed when the I2C is disabled (PE = 0).
|
|
* @rmtoll CR1 NOSTRETCH LL_I2C_EnableClockStretching
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableClockStretching(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_NOSTRETCH);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable Clock stretching.
|
|
* @note This bit can only be programmed when the I2C is disabled (PE = 0).
|
|
* @rmtoll CR1 NOSTRETCH LL_I2C_DisableClockStretching
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableClockStretching(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_NOSTRETCH);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if Clock stretching is enabled or disabled.
|
|
* @rmtoll CR1 NOSTRETCH LL_I2C_IsEnabledClockStretching
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledClockStretching(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_NOSTRETCH) != (I2C_CR1_NOSTRETCH)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable hardware byte control in slave mode.
|
|
* @rmtoll CR1 SBC LL_I2C_EnableSlaveByteControl
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableSlaveByteControl(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_SBC);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable hardware byte control in slave mode.
|
|
* @rmtoll CR1 SBC LL_I2C_DisableSlaveByteControl
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableSlaveByteControl(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_SBC);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if hardware byte control in slave mode is enabled or disabled.
|
|
* @rmtoll CR1 SBC LL_I2C_IsEnabledSlaveByteControl
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSlaveByteControl(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_SBC) == (I2C_CR1_SBC)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable Wakeup from STOP.
|
|
* @note The macro IS_I2C_WAKEUP_FROMSTOP_INSTANCE(I2Cx) can be used to check whether or not
|
|
* WakeUpFromStop feature is supported by the I2Cx Instance.
|
|
* @note This bit can only be programmed when Digital Filter is disabled.
|
|
* @rmtoll CR1 WUPEN LL_I2C_EnableWakeUpFromStop
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableWakeUpFromStop(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_WUPEN);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable Wakeup from STOP.
|
|
* @note The macro IS_I2C_WAKEUP_FROMSTOP_INSTANCE(I2Cx) can be used to check whether or not
|
|
* WakeUpFromStop feature is supported by the I2Cx Instance.
|
|
* @rmtoll CR1 WUPEN LL_I2C_DisableWakeUpFromStop
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableWakeUpFromStop(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_WUPEN);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if Wakeup from STOP is enabled or disabled.
|
|
* @note The macro IS_I2C_WAKEUP_FROMSTOP_INSTANCE(I2Cx) can be used to check whether or not
|
|
* WakeUpFromStop feature is supported by the I2Cx Instance.
|
|
* @rmtoll CR1 WUPEN LL_I2C_IsEnabledWakeUpFromStop
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledWakeUpFromStop(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_WUPEN) == (I2C_CR1_WUPEN)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable General Call.
|
|
* @note When enabled the Address 0x00 is ACKed.
|
|
* @rmtoll CR1 GCEN LL_I2C_EnableGeneralCall
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableGeneralCall(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_GCEN);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable General Call.
|
|
* @note When disabled the Address 0x00 is NACKed.
|
|
* @rmtoll CR1 GCEN LL_I2C_DisableGeneralCall
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableGeneralCall(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_GCEN);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if General Call is enabled or disabled.
|
|
* @rmtoll CR1 GCEN LL_I2C_IsEnabledGeneralCall
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledGeneralCall(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_GCEN) == (I2C_CR1_GCEN)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Configure the Master to operate in 7-bit or 10-bit addressing mode.
|
|
* @note Changing this bit is not allowed, when the START bit is set.
|
|
* @rmtoll CR2 ADD10 LL_I2C_SetMasterAddressingMode
|
|
* @param I2Cx I2C Instance.
|
|
* @param AddressingMode This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_ADDRESSING_MODE_7BIT
|
|
* @arg @ref LL_I2C_ADDRESSING_MODE_10BIT
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_SetMasterAddressingMode(I2C_TypeDef *I2Cx, uint32_t AddressingMode)
|
|
{
|
|
MODIFY_REG(I2Cx->CR2, I2C_CR2_ADD10, AddressingMode);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the Master addressing mode.
|
|
* @rmtoll CR2 ADD10 LL_I2C_GetMasterAddressingMode
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Returned value can be one of the following values:
|
|
* @arg @ref LL_I2C_ADDRESSING_MODE_7BIT
|
|
* @arg @ref LL_I2C_ADDRESSING_MODE_10BIT
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetMasterAddressingMode(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->CR2, I2C_CR2_ADD10));
|
|
}
|
|
|
|
/**
|
|
* @brief Set the Own Address1.
|
|
* @rmtoll OAR1 OA1 LL_I2C_SetOwnAddress1\n
|
|
* OAR1 OA1MODE LL_I2C_SetOwnAddress1
|
|
* @param I2Cx I2C Instance.
|
|
* @param OwnAddress1 This parameter must be a value between Min_Data=0 and Max_Data=0x3FF.
|
|
* @param OwnAddrSize This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_OWNADDRESS1_7BIT
|
|
* @arg @ref LL_I2C_OWNADDRESS1_10BIT
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_SetOwnAddress1(I2C_TypeDef *I2Cx, uint32_t OwnAddress1, uint32_t OwnAddrSize)
|
|
{
|
|
MODIFY_REG(I2Cx->OAR1, I2C_OAR1_OA1 | I2C_OAR1_OA1MODE, OwnAddress1 | OwnAddrSize);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable acknowledge on Own Address1 match address.
|
|
* @rmtoll OAR1 OA1EN LL_I2C_EnableOwnAddress1
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableOwnAddress1(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->OAR1, I2C_OAR1_OA1EN);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable acknowledge on Own Address1 match address.
|
|
* @rmtoll OAR1 OA1EN LL_I2C_DisableOwnAddress1
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableOwnAddress1(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->OAR1, I2C_OAR1_OA1EN);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if Own Address1 acknowledge is enabled or disabled.
|
|
* @rmtoll OAR1 OA1EN LL_I2C_IsEnabledOwnAddress1
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledOwnAddress1(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->OAR1, I2C_OAR1_OA1EN) == (I2C_OAR1_OA1EN)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Set the 7bits Own Address2.
|
|
* @note This action has no effect if own address2 is enabled.
|
|
* @rmtoll OAR2 OA2 LL_I2C_SetOwnAddress2\n
|
|
* OAR2 OA2MSK LL_I2C_SetOwnAddress2
|
|
* @param I2Cx I2C Instance.
|
|
* @param OwnAddress2 Value between Min_Data=0 and Max_Data=0x7F.
|
|
* @param OwnAddrMask This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_OWNADDRESS2_NOMASK
|
|
* @arg @ref LL_I2C_OWNADDRESS2_MASK01
|
|
* @arg @ref LL_I2C_OWNADDRESS2_MASK02
|
|
* @arg @ref LL_I2C_OWNADDRESS2_MASK03
|
|
* @arg @ref LL_I2C_OWNADDRESS2_MASK04
|
|
* @arg @ref LL_I2C_OWNADDRESS2_MASK05
|
|
* @arg @ref LL_I2C_OWNADDRESS2_MASK06
|
|
* @arg @ref LL_I2C_OWNADDRESS2_MASK07
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_SetOwnAddress2(I2C_TypeDef *I2Cx, uint32_t OwnAddress2, uint32_t OwnAddrMask)
|
|
{
|
|
MODIFY_REG(I2Cx->OAR2, I2C_OAR2_OA2 | I2C_OAR2_OA2MSK, OwnAddress2 | OwnAddrMask);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable acknowledge on Own Address2 match address.
|
|
* @rmtoll OAR2 OA2EN LL_I2C_EnableOwnAddress2
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableOwnAddress2(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->OAR2, I2C_OAR2_OA2EN);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable acknowledge on Own Address2 match address.
|
|
* @rmtoll OAR2 OA2EN LL_I2C_DisableOwnAddress2
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableOwnAddress2(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->OAR2, I2C_OAR2_OA2EN);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if Own Address1 acknowledge is enabled or disabled.
|
|
* @rmtoll OAR2 OA2EN LL_I2C_IsEnabledOwnAddress2
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledOwnAddress2(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->OAR2, I2C_OAR2_OA2EN) == (I2C_OAR2_OA2EN)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Configure the SDA setup, hold time and the SCL high, low period.
|
|
* @note This bit can only be programmed when the I2C is disabled (PE = 0).
|
|
* @rmtoll TIMINGR TIMINGR LL_I2C_SetTiming
|
|
* @param I2Cx I2C Instance.
|
|
* @param Timing This parameter must be a value between Min_Data=0 and Max_Data=0xFFFFFFFF.
|
|
* @note This parameter is computed with the STM32CubeMX Tool.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_SetTiming(I2C_TypeDef *I2Cx, uint32_t Timing)
|
|
{
|
|
WRITE_REG(I2Cx->TIMINGR, Timing);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the Timing Prescaler setting.
|
|
* @rmtoll TIMINGR PRESC LL_I2C_GetTimingPrescaler
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Value between Min_Data=0x0 and Max_Data=0xF
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetTimingPrescaler(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->TIMINGR, I2C_TIMINGR_PRESC) >> I2C_TIMINGR_PRESC_Pos);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the SCL low period setting.
|
|
* @rmtoll TIMINGR SCLL LL_I2C_GetClockLowPeriod
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Value between Min_Data=0x00 and Max_Data=0xFF
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetClockLowPeriod(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->TIMINGR, I2C_TIMINGR_SCLL) >> I2C_TIMINGR_SCLL_Pos);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the SCL high period setting.
|
|
* @rmtoll TIMINGR SCLH LL_I2C_GetClockHighPeriod
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Value between Min_Data=0x00 and Max_Data=0xFF
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetClockHighPeriod(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->TIMINGR, I2C_TIMINGR_SCLH) >> I2C_TIMINGR_SCLH_Pos);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the SDA hold time.
|
|
* @rmtoll TIMINGR SDADEL LL_I2C_GetDataHoldTime
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Value between Min_Data=0x0 and Max_Data=0xF
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetDataHoldTime(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->TIMINGR, I2C_TIMINGR_SDADEL) >> I2C_TIMINGR_SDADEL_Pos);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the SDA setup time.
|
|
* @rmtoll TIMINGR SCLDEL LL_I2C_GetDataSetupTime
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Value between Min_Data=0x0 and Max_Data=0xF
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetDataSetupTime(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->TIMINGR, I2C_TIMINGR_SCLDEL) >> I2C_TIMINGR_SCLDEL_Pos);
|
|
}
|
|
|
|
/**
|
|
* @brief Configure peripheral mode.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll CR1 SMBHEN LL_I2C_SetMode\n
|
|
* CR1 SMBDEN LL_I2C_SetMode
|
|
* @param I2Cx I2C Instance.
|
|
* @param PeripheralMode This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_MODE_I2C
|
|
* @arg @ref LL_I2C_MODE_SMBUS_HOST
|
|
* @arg @ref LL_I2C_MODE_SMBUS_DEVICE
|
|
* @arg @ref LL_I2C_MODE_SMBUS_DEVICE_ARP
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_SetMode(I2C_TypeDef *I2Cx, uint32_t PeripheralMode)
|
|
{
|
|
MODIFY_REG(I2Cx->CR1, I2C_CR1_SMBHEN | I2C_CR1_SMBDEN, PeripheralMode);
|
|
}
|
|
|
|
/**
|
|
* @brief Get peripheral mode.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll CR1 SMBHEN LL_I2C_GetMode\n
|
|
* CR1 SMBDEN LL_I2C_GetMode
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Returned value can be one of the following values:
|
|
* @arg @ref LL_I2C_MODE_I2C
|
|
* @arg @ref LL_I2C_MODE_SMBUS_HOST
|
|
* @arg @ref LL_I2C_MODE_SMBUS_DEVICE
|
|
* @arg @ref LL_I2C_MODE_SMBUS_DEVICE_ARP
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetMode(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->CR1, I2C_CR1_SMBHEN | I2C_CR1_SMBDEN));
|
|
}
|
|
|
|
/**
|
|
* @brief Enable SMBus alert (Host or Device mode)
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @note SMBus Device mode:
|
|
* - SMBus Alert pin is drived low and
|
|
* Alert Response Address Header acknowledge is enabled.
|
|
* SMBus Host mode:
|
|
* - SMBus Alert pin management is supported.
|
|
* @rmtoll CR1 ALERTEN LL_I2C_EnableSMBusAlert
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableSMBusAlert(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_ALERTEN);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable SMBus alert (Host or Device mode)
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @note SMBus Device mode:
|
|
* - SMBus Alert pin is not drived (can be used as a standard GPIO) and
|
|
* Alert Response Address Header acknowledge is disabled.
|
|
* SMBus Host mode:
|
|
* - SMBus Alert pin management is not supported.
|
|
* @rmtoll CR1 ALERTEN LL_I2C_DisableSMBusAlert
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableSMBusAlert(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_ALERTEN);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if SMBus alert (Host or Device mode) is enabled or disabled.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll CR1 ALERTEN LL_I2C_IsEnabledSMBusAlert
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusAlert(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_ALERTEN) == (I2C_CR1_ALERTEN)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable SMBus Packet Error Calculation (PEC).
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll CR1 PECEN LL_I2C_EnableSMBusPEC
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableSMBusPEC(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_PECEN);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable SMBus Packet Error Calculation (PEC).
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll CR1 PECEN LL_I2C_DisableSMBusPEC
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableSMBusPEC(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_PECEN);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if SMBus Packet Error Calculation (PEC) is enabled or disabled.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll CR1 PECEN LL_I2C_IsEnabledSMBusPEC
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusPEC(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_PECEN) == (I2C_CR1_PECEN)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Configure the SMBus Clock Timeout.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @note This configuration can only be programmed when associated Timeout is disabled (TimeoutA and/orTimeoutB).
|
|
* @rmtoll TIMEOUTR TIMEOUTA LL_I2C_ConfigSMBusTimeout\n
|
|
* TIMEOUTR TIDLE LL_I2C_ConfigSMBusTimeout\n
|
|
* TIMEOUTR TIMEOUTB LL_I2C_ConfigSMBusTimeout
|
|
* @param I2Cx I2C Instance.
|
|
* @param TimeoutA This parameter must be a value between Min_Data=0 and Max_Data=0xFFF.
|
|
* @param TimeoutAMode This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_SMBUS_TIMEOUTA_MODE_SCL_LOW
|
|
* @arg @ref LL_I2C_SMBUS_TIMEOUTA_MODE_SDA_SCL_HIGH
|
|
* @param TimeoutB
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_ConfigSMBusTimeout(I2C_TypeDef *I2Cx, uint32_t TimeoutA, uint32_t TimeoutAMode,
|
|
uint32_t TimeoutB)
|
|
{
|
|
MODIFY_REG(I2Cx->TIMEOUTR, I2C_TIMEOUTR_TIMEOUTA | I2C_TIMEOUTR_TIDLE | I2C_TIMEOUTR_TIMEOUTB,
|
|
TimeoutA | TimeoutAMode | (TimeoutB << I2C_TIMEOUTR_TIMEOUTB_Pos));
|
|
}
|
|
|
|
/**
|
|
* @brief Configure the SMBus Clock TimeoutA (SCL low timeout or SCL and SDA high timeout depends on TimeoutA mode).
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @note These bits can only be programmed when TimeoutA is disabled.
|
|
* @rmtoll TIMEOUTR TIMEOUTA LL_I2C_SetSMBusTimeoutA
|
|
* @param I2Cx I2C Instance.
|
|
* @param TimeoutA This parameter must be a value between Min_Data=0 and Max_Data=0xFFF.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_SetSMBusTimeoutA(I2C_TypeDef *I2Cx, uint32_t TimeoutA)
|
|
{
|
|
WRITE_REG(I2Cx->TIMEOUTR, TimeoutA);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the SMBus Clock TimeoutA setting.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll TIMEOUTR TIMEOUTA LL_I2C_GetSMBusTimeoutA
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Value between Min_Data=0 and Max_Data=0xFFF
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetSMBusTimeoutA(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->TIMEOUTR, I2C_TIMEOUTR_TIMEOUTA));
|
|
}
|
|
|
|
/**
|
|
* @brief Set the SMBus Clock TimeoutA mode.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @note This bit can only be programmed when TimeoutA is disabled.
|
|
* @rmtoll TIMEOUTR TIDLE LL_I2C_SetSMBusTimeoutAMode
|
|
* @param I2Cx I2C Instance.
|
|
* @param TimeoutAMode This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_SMBUS_TIMEOUTA_MODE_SCL_LOW
|
|
* @arg @ref LL_I2C_SMBUS_TIMEOUTA_MODE_SDA_SCL_HIGH
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_SetSMBusTimeoutAMode(I2C_TypeDef *I2Cx, uint32_t TimeoutAMode)
|
|
{
|
|
WRITE_REG(I2Cx->TIMEOUTR, TimeoutAMode);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the SMBus Clock TimeoutA mode.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll TIMEOUTR TIDLE LL_I2C_GetSMBusTimeoutAMode
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Returned value can be one of the following values:
|
|
* @arg @ref LL_I2C_SMBUS_TIMEOUTA_MODE_SCL_LOW
|
|
* @arg @ref LL_I2C_SMBUS_TIMEOUTA_MODE_SDA_SCL_HIGH
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetSMBusTimeoutAMode(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->TIMEOUTR, I2C_TIMEOUTR_TIDLE));
|
|
}
|
|
|
|
/**
|
|
* @brief Configure the SMBus Extended Cumulative Clock TimeoutB (Master or Slave mode).
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @note These bits can only be programmed when TimeoutB is disabled.
|
|
* @rmtoll TIMEOUTR TIMEOUTB LL_I2C_SetSMBusTimeoutB
|
|
* @param I2Cx I2C Instance.
|
|
* @param TimeoutB This parameter must be a value between Min_Data=0 and Max_Data=0xFFF.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_SetSMBusTimeoutB(I2C_TypeDef *I2Cx, uint32_t TimeoutB)
|
|
{
|
|
WRITE_REG(I2Cx->TIMEOUTR, TimeoutB << I2C_TIMEOUTR_TIMEOUTB_Pos);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the SMBus Extended Cumulative Clock TimeoutB setting.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll TIMEOUTR TIMEOUTB LL_I2C_GetSMBusTimeoutB
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Value between Min_Data=0 and Max_Data=0xFFF
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetSMBusTimeoutB(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->TIMEOUTR, I2C_TIMEOUTR_TIMEOUTB) >> I2C_TIMEOUTR_TIMEOUTB_Pos);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable the SMBus Clock Timeout.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll TIMEOUTR TIMOUTEN LL_I2C_EnableSMBusTimeout\n
|
|
* TIMEOUTR TEXTEN LL_I2C_EnableSMBusTimeout
|
|
* @param I2Cx I2C Instance.
|
|
* @param ClockTimeout This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_SMBUS_TIMEOUTA
|
|
* @arg @ref LL_I2C_SMBUS_TIMEOUTB
|
|
* @arg @ref LL_I2C_SMBUS_ALL_TIMEOUT
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableSMBusTimeout(I2C_TypeDef *I2Cx, uint32_t ClockTimeout)
|
|
{
|
|
SET_BIT(I2Cx->TIMEOUTR, ClockTimeout);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable the SMBus Clock Timeout.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll TIMEOUTR TIMOUTEN LL_I2C_DisableSMBusTimeout\n
|
|
* TIMEOUTR TEXTEN LL_I2C_DisableSMBusTimeout
|
|
* @param I2Cx I2C Instance.
|
|
* @param ClockTimeout This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_SMBUS_TIMEOUTA
|
|
* @arg @ref LL_I2C_SMBUS_TIMEOUTB
|
|
* @arg @ref LL_I2C_SMBUS_ALL_TIMEOUT
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableSMBusTimeout(I2C_TypeDef *I2Cx, uint32_t ClockTimeout)
|
|
{
|
|
CLEAR_BIT(I2Cx->TIMEOUTR, ClockTimeout);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if the SMBus Clock Timeout is enabled or disabled.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll TIMEOUTR TIMOUTEN LL_I2C_IsEnabledSMBusTimeout\n
|
|
* TIMEOUTR TEXTEN LL_I2C_IsEnabledSMBusTimeout
|
|
* @param I2Cx I2C Instance.
|
|
* @param ClockTimeout This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_SMBUS_TIMEOUTA
|
|
* @arg @ref LL_I2C_SMBUS_TIMEOUTB
|
|
* @arg @ref LL_I2C_SMBUS_ALL_TIMEOUT
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusTimeout(const I2C_TypeDef *I2Cx, uint32_t ClockTimeout)
|
|
{
|
|
return ((READ_BIT(I2Cx->TIMEOUTR, (I2C_TIMEOUTR_TIMOUTEN | I2C_TIMEOUTR_TEXTEN)) == \
|
|
(ClockTimeout)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @defgroup I2C_LL_EF_IT_Management IT_Management
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Enable TXIS interrupt.
|
|
* @rmtoll CR1 TXIE LL_I2C_EnableIT_TX
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableIT_TX(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_TXIE);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable TXIS interrupt.
|
|
* @rmtoll CR1 TXIE LL_I2C_DisableIT_TX
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableIT_TX(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_TXIE);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if the TXIS Interrupt is enabled or disabled.
|
|
* @rmtoll CR1 TXIE LL_I2C_IsEnabledIT_TX
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_TX(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_TXIE) == (I2C_CR1_TXIE)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable RXNE interrupt.
|
|
* @rmtoll CR1 RXIE LL_I2C_EnableIT_RX
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableIT_RX(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_RXIE);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable RXNE interrupt.
|
|
* @rmtoll CR1 RXIE LL_I2C_DisableIT_RX
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableIT_RX(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_RXIE);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if the RXNE Interrupt is enabled or disabled.
|
|
* @rmtoll CR1 RXIE LL_I2C_IsEnabledIT_RX
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_RX(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_RXIE) == (I2C_CR1_RXIE)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable Address match interrupt (slave mode only).
|
|
* @rmtoll CR1 ADDRIE LL_I2C_EnableIT_ADDR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableIT_ADDR(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_ADDRIE);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable Address match interrupt (slave mode only).
|
|
* @rmtoll CR1 ADDRIE LL_I2C_DisableIT_ADDR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableIT_ADDR(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_ADDRIE);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if Address match interrupt is enabled or disabled.
|
|
* @rmtoll CR1 ADDRIE LL_I2C_IsEnabledIT_ADDR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_ADDR(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_ADDRIE) == (I2C_CR1_ADDRIE)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable Not acknowledge received interrupt.
|
|
* @rmtoll CR1 NACKIE LL_I2C_EnableIT_NACK
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableIT_NACK(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_NACKIE);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable Not acknowledge received interrupt.
|
|
* @rmtoll CR1 NACKIE LL_I2C_DisableIT_NACK
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableIT_NACK(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_NACKIE);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if Not acknowledge received interrupt is enabled or disabled.
|
|
* @rmtoll CR1 NACKIE LL_I2C_IsEnabledIT_NACK
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_NACK(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_NACKIE) == (I2C_CR1_NACKIE)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable STOP detection interrupt.
|
|
* @rmtoll CR1 STOPIE LL_I2C_EnableIT_STOP
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableIT_STOP(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_STOPIE);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable STOP detection interrupt.
|
|
* @rmtoll CR1 STOPIE LL_I2C_DisableIT_STOP
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableIT_STOP(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_STOPIE);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if STOP detection interrupt is enabled or disabled.
|
|
* @rmtoll CR1 STOPIE LL_I2C_IsEnabledIT_STOP
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_STOP(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_STOPIE) == (I2C_CR1_STOPIE)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable Transfer Complete interrupt.
|
|
* @note Any of these events will generate interrupt :
|
|
* Transfer Complete (TC)
|
|
* Transfer Complete Reload (TCR)
|
|
* @rmtoll CR1 TCIE LL_I2C_EnableIT_TC
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableIT_TC(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_TCIE);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable Transfer Complete interrupt.
|
|
* @note Any of these events will generate interrupt :
|
|
* Transfer Complete (TC)
|
|
* Transfer Complete Reload (TCR)
|
|
* @rmtoll CR1 TCIE LL_I2C_DisableIT_TC
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableIT_TC(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_TCIE);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if Transfer Complete interrupt is enabled or disabled.
|
|
* @rmtoll CR1 TCIE LL_I2C_IsEnabledIT_TC
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_TC(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_TCIE) == (I2C_CR1_TCIE)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable Error interrupts.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @note Any of these errors will generate interrupt :
|
|
* Arbitration Loss (ARLO)
|
|
* Bus Error detection (BERR)
|
|
* Overrun/Underrun (OVR)
|
|
* SMBus Timeout detection (TIMEOUT)
|
|
* SMBus PEC error detection (PECERR)
|
|
* SMBus Alert pin event detection (ALERT)
|
|
* @rmtoll CR1 ERRIE LL_I2C_EnableIT_ERR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableIT_ERR(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR1, I2C_CR1_ERRIE);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable Error interrupts.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @note Any of these errors will generate interrupt :
|
|
* Arbitration Loss (ARLO)
|
|
* Bus Error detection (BERR)
|
|
* Overrun/Underrun (OVR)
|
|
* SMBus Timeout detection (TIMEOUT)
|
|
* SMBus PEC error detection (PECERR)
|
|
* SMBus Alert pin event detection (ALERT)
|
|
* @rmtoll CR1 ERRIE LL_I2C_DisableIT_ERR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableIT_ERR(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR1, I2C_CR1_ERRIE);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if Error interrupts are enabled or disabled.
|
|
* @rmtoll CR1 ERRIE LL_I2C_IsEnabledIT_ERR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledIT_ERR(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR1, I2C_CR1_ERRIE) == (I2C_CR1_ERRIE)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @defgroup I2C_LL_EF_FLAG_management FLAG_management
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Indicate the status of Transmit data register empty flag.
|
|
* @note RESET: When next data is written in Transmit data register.
|
|
* SET: When Transmit data register is empty.
|
|
* @rmtoll ISR TXE LL_I2C_IsActiveFlag_TXE
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_TXE(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_TXE) == (I2C_ISR_TXE)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the status of Transmit interrupt flag.
|
|
* @note RESET: When next data is written in Transmit data register.
|
|
* SET: When Transmit data register is empty.
|
|
* @rmtoll ISR TXIS LL_I2C_IsActiveFlag_TXIS
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_TXIS(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_TXIS) == (I2C_ISR_TXIS)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the status of Receive data register not empty flag.
|
|
* @note RESET: When Receive data register is read.
|
|
* SET: When the received data is copied in Receive data register.
|
|
* @rmtoll ISR RXNE LL_I2C_IsActiveFlag_RXNE
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_RXNE(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_RXNE) == (I2C_ISR_RXNE)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the status of Address matched flag (slave mode).
|
|
* @note RESET: Clear default value.
|
|
* SET: When the received slave address matched with one of the enabled slave address.
|
|
* @rmtoll ISR ADDR LL_I2C_IsActiveFlag_ADDR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_ADDR(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_ADDR) == (I2C_ISR_ADDR)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the status of Not Acknowledge received flag.
|
|
* @note RESET: Clear default value.
|
|
* SET: When a NACK is received after a byte transmission.
|
|
* @rmtoll ISR NACKF LL_I2C_IsActiveFlag_NACK
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_NACK(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_NACKF) == (I2C_ISR_NACKF)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the status of Stop detection flag.
|
|
* @note RESET: Clear default value.
|
|
* SET: When a Stop condition is detected.
|
|
* @rmtoll ISR STOPF LL_I2C_IsActiveFlag_STOP
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_STOP(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_STOPF) == (I2C_ISR_STOPF)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the status of Transfer complete flag (master mode).
|
|
* @note RESET: Clear default value.
|
|
* SET: When RELOAD=0, AUTOEND=0 and NBYTES date have been transferred.
|
|
* @rmtoll ISR TC LL_I2C_IsActiveFlag_TC
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_TC(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_TC) == (I2C_ISR_TC)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the status of Transfer complete flag (master mode).
|
|
* @note RESET: Clear default value.
|
|
* SET: When RELOAD=1 and NBYTES date have been transferred.
|
|
* @rmtoll ISR TCR LL_I2C_IsActiveFlag_TCR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_TCR(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_TCR) == (I2C_ISR_TCR)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the status of Bus error flag.
|
|
* @note RESET: Clear default value.
|
|
* SET: When a misplaced Start or Stop condition is detected.
|
|
* @rmtoll ISR BERR LL_I2C_IsActiveFlag_BERR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_BERR(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_BERR) == (I2C_ISR_BERR)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the status of Arbitration lost flag.
|
|
* @note RESET: Clear default value.
|
|
* SET: When arbitration lost.
|
|
* @rmtoll ISR ARLO LL_I2C_IsActiveFlag_ARLO
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_ARLO(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_ARLO) == (I2C_ISR_ARLO)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the status of Overrun/Underrun flag (slave mode).
|
|
* @note RESET: Clear default value.
|
|
* SET: When an overrun/underrun error occurs (Clock Stretching Disabled).
|
|
* @rmtoll ISR OVR LL_I2C_IsActiveFlag_OVR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_OVR(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_OVR) == (I2C_ISR_OVR)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the status of SMBus PEC error flag in reception.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @note RESET: Clear default value.
|
|
* SET: When the received PEC does not match with the PEC register content.
|
|
* @rmtoll ISR PECERR LL_I2C_IsActiveSMBusFlag_PECERR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveSMBusFlag_PECERR(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_PECERR) == (I2C_ISR_PECERR)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the status of SMBus Timeout detection flag.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @note RESET: Clear default value.
|
|
* SET: When a timeout or extended clock timeout occurs.
|
|
* @rmtoll ISR TIMEOUT LL_I2C_IsActiveSMBusFlag_TIMEOUT
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveSMBusFlag_TIMEOUT(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_TIMEOUT) == (I2C_ISR_TIMEOUT)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the status of SMBus alert flag.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @note RESET: Clear default value.
|
|
* SET: When SMBus host configuration, SMBus alert enabled and
|
|
* a falling edge event occurs on SMBA pin.
|
|
* @rmtoll ISR ALERT LL_I2C_IsActiveSMBusFlag_ALERT
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveSMBusFlag_ALERT(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_ALERT) == (I2C_ISR_ALERT)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the status of Bus Busy flag.
|
|
* @note RESET: Clear default value.
|
|
* SET: When a Start condition is detected.
|
|
* @rmtoll ISR BUSY LL_I2C_IsActiveFlag_BUSY
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsActiveFlag_BUSY(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->ISR, I2C_ISR_BUSY) == (I2C_ISR_BUSY)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Clear Address Matched flag.
|
|
* @rmtoll ICR ADDRCF LL_I2C_ClearFlag_ADDR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_ClearFlag_ADDR(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->ICR, I2C_ICR_ADDRCF);
|
|
}
|
|
|
|
/**
|
|
* @brief Clear Not Acknowledge flag.
|
|
* @rmtoll ICR NACKCF LL_I2C_ClearFlag_NACK
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_ClearFlag_NACK(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->ICR, I2C_ICR_NACKCF);
|
|
}
|
|
|
|
/**
|
|
* @brief Clear Stop detection flag.
|
|
* @rmtoll ICR STOPCF LL_I2C_ClearFlag_STOP
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_ClearFlag_STOP(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->ICR, I2C_ICR_STOPCF);
|
|
}
|
|
|
|
/**
|
|
* @brief Clear Transmit data register empty flag (TXE).
|
|
* @note This bit can be clear by software in order to flush the transmit data register (TXDR).
|
|
* @rmtoll ISR TXE LL_I2C_ClearFlag_TXE
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_ClearFlag_TXE(I2C_TypeDef *I2Cx)
|
|
{
|
|
WRITE_REG(I2Cx->ISR, I2C_ISR_TXE);
|
|
}
|
|
|
|
/**
|
|
* @brief Clear Bus error flag.
|
|
* @rmtoll ICR BERRCF LL_I2C_ClearFlag_BERR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_ClearFlag_BERR(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->ICR, I2C_ICR_BERRCF);
|
|
}
|
|
|
|
/**
|
|
* @brief Clear Arbitration lost flag.
|
|
* @rmtoll ICR ARLOCF LL_I2C_ClearFlag_ARLO
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_ClearFlag_ARLO(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->ICR, I2C_ICR_ARLOCF);
|
|
}
|
|
|
|
/**
|
|
* @brief Clear Overrun/Underrun flag.
|
|
* @rmtoll ICR OVRCF LL_I2C_ClearFlag_OVR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_ClearFlag_OVR(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->ICR, I2C_ICR_OVRCF);
|
|
}
|
|
|
|
/**
|
|
* @brief Clear SMBus PEC error flag.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll ICR PECCF LL_I2C_ClearSMBusFlag_PECERR
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_ClearSMBusFlag_PECERR(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->ICR, I2C_ICR_PECCF);
|
|
}
|
|
|
|
/**
|
|
* @brief Clear SMBus Timeout detection flag.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll ICR TIMOUTCF LL_I2C_ClearSMBusFlag_TIMEOUT
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_ClearSMBusFlag_TIMEOUT(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->ICR, I2C_ICR_TIMOUTCF);
|
|
}
|
|
|
|
/**
|
|
* @brief Clear SMBus Alert flag.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll ICR ALERTCF LL_I2C_ClearSMBusFlag_ALERT
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_ClearSMBusFlag_ALERT(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->ICR, I2C_ICR_ALERTCF);
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @defgroup I2C_LL_EF_Data_Management Data_Management
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Enable automatic STOP condition generation (master mode).
|
|
* @note Automatic end mode : a STOP condition is automatically sent when NBYTES data are transferred.
|
|
* This bit has no effect in slave mode or when RELOAD bit is set.
|
|
* @rmtoll CR2 AUTOEND LL_I2C_EnableAutoEndMode
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableAutoEndMode(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR2, I2C_CR2_AUTOEND);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable automatic STOP condition generation (master mode).
|
|
* @note Software end mode : TC flag is set when NBYTES data are transferre, stretching SCL low.
|
|
* @rmtoll CR2 AUTOEND LL_I2C_DisableAutoEndMode
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableAutoEndMode(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR2, I2C_CR2_AUTOEND);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if automatic STOP condition is enabled or disabled.
|
|
* @rmtoll CR2 AUTOEND LL_I2C_IsEnabledAutoEndMode
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledAutoEndMode(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR2, I2C_CR2_AUTOEND) == (I2C_CR2_AUTOEND)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable reload mode (master mode).
|
|
* @note The transfer is not completed after the NBYTES data transfer, NBYTES will be reloaded when TCR flag is set.
|
|
* @rmtoll CR2 RELOAD LL_I2C_EnableReloadMode
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableReloadMode(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR2, I2C_CR2_RELOAD);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable reload mode (master mode).
|
|
* @note The transfer is completed after the NBYTES data transfer(STOP or RESTART will follow).
|
|
* @rmtoll CR2 RELOAD LL_I2C_DisableReloadMode
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableReloadMode(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR2, I2C_CR2_RELOAD);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if reload mode is enabled or disabled.
|
|
* @rmtoll CR2 RELOAD LL_I2C_IsEnabledReloadMode
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledReloadMode(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR2, I2C_CR2_RELOAD) == (I2C_CR2_RELOAD)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Configure the number of bytes for transfer.
|
|
* @note Changing these bits when START bit is set is not allowed.
|
|
* @rmtoll CR2 NBYTES LL_I2C_SetTransferSize
|
|
* @param I2Cx I2C Instance.
|
|
* @param TransferSize This parameter must be a value between Min_Data=0x00 and Max_Data=0xFF.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_SetTransferSize(I2C_TypeDef *I2Cx, uint32_t TransferSize)
|
|
{
|
|
MODIFY_REG(I2Cx->CR2, I2C_CR2_NBYTES, TransferSize << I2C_CR2_NBYTES_Pos);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the number of bytes configured for transfer.
|
|
* @rmtoll CR2 NBYTES LL_I2C_GetTransferSize
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Value between Min_Data=0x0 and Max_Data=0xFF
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetTransferSize(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->CR2, I2C_CR2_NBYTES) >> I2C_CR2_NBYTES_Pos);
|
|
}
|
|
|
|
/**
|
|
* @brief Prepare the generation of a ACKnowledge or Non ACKnowledge condition after the address receive match code
|
|
or next received byte.
|
|
* @note Usage in Slave mode only.
|
|
* @rmtoll CR2 NACK LL_I2C_AcknowledgeNextData
|
|
* @param I2Cx I2C Instance.
|
|
* @param TypeAcknowledge This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_ACK
|
|
* @arg @ref LL_I2C_NACK
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_AcknowledgeNextData(I2C_TypeDef *I2Cx, uint32_t TypeAcknowledge)
|
|
{
|
|
MODIFY_REG(I2Cx->CR2, I2C_CR2_NACK, TypeAcknowledge);
|
|
}
|
|
|
|
/**
|
|
* @brief Generate a START or RESTART condition
|
|
* @note The START bit can be set even if bus is BUSY or I2C is in slave mode.
|
|
* This action has no effect when RELOAD is set.
|
|
* @rmtoll CR2 START LL_I2C_GenerateStartCondition
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_GenerateStartCondition(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR2, I2C_CR2_START);
|
|
}
|
|
|
|
/**
|
|
* @brief Generate a STOP condition after the current byte transfer (master mode).
|
|
* @rmtoll CR2 STOP LL_I2C_GenerateStopCondition
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_GenerateStopCondition(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR2, I2C_CR2_STOP);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable automatic RESTART Read request condition for 10bit address header (master mode).
|
|
* @note The master sends the complete 10bit slave address read sequence :
|
|
* Start + 2 bytes 10bit address in Write direction + Restart + first 7 bits of 10bit address
|
|
in Read direction.
|
|
* @rmtoll CR2 HEAD10R LL_I2C_EnableAuto10BitRead
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableAuto10BitRead(I2C_TypeDef *I2Cx)
|
|
{
|
|
CLEAR_BIT(I2Cx->CR2, I2C_CR2_HEAD10R);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable automatic RESTART Read request condition for 10bit address header (master mode).
|
|
* @note The master only sends the first 7 bits of 10bit address in Read direction.
|
|
* @rmtoll CR2 HEAD10R LL_I2C_DisableAuto10BitRead
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_DisableAuto10BitRead(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR2, I2C_CR2_HEAD10R);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if automatic RESTART Read request condition for 10bit address header is enabled or disabled.
|
|
* @rmtoll CR2 HEAD10R LL_I2C_IsEnabledAuto10BitRead
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledAuto10BitRead(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR2, I2C_CR2_HEAD10R) != (I2C_CR2_HEAD10R)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Configure the transfer direction (master mode).
|
|
* @note Changing these bits when START bit is set is not allowed.
|
|
* @rmtoll CR2 RD_WRN LL_I2C_SetTransferRequest
|
|
* @param I2Cx I2C Instance.
|
|
* @param TransferRequest This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_REQUEST_WRITE
|
|
* @arg @ref LL_I2C_REQUEST_READ
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_SetTransferRequest(I2C_TypeDef *I2Cx, uint32_t TransferRequest)
|
|
{
|
|
MODIFY_REG(I2Cx->CR2, I2C_CR2_RD_WRN, TransferRequest);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the transfer direction requested (master mode).
|
|
* @rmtoll CR2 RD_WRN LL_I2C_GetTransferRequest
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Returned value can be one of the following values:
|
|
* @arg @ref LL_I2C_REQUEST_WRITE
|
|
* @arg @ref LL_I2C_REQUEST_READ
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetTransferRequest(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->CR2, I2C_CR2_RD_WRN));
|
|
}
|
|
|
|
/**
|
|
* @brief Configure the slave address for transfer (master mode).
|
|
* @note Changing these bits when START bit is set is not allowed.
|
|
* @rmtoll CR2 SADD LL_I2C_SetSlaveAddr
|
|
* @param I2Cx I2C Instance.
|
|
* @param SlaveAddr This parameter must be a value between Min_Data=0x00 and Max_Data=0x3F.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_SetSlaveAddr(I2C_TypeDef *I2Cx, uint32_t SlaveAddr)
|
|
{
|
|
MODIFY_REG(I2Cx->CR2, I2C_CR2_SADD, SlaveAddr);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the slave address programmed for transfer.
|
|
* @rmtoll CR2 SADD LL_I2C_GetSlaveAddr
|
|
* @param I2Cx I2C Instance.
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|
* @retval Value between Min_Data=0x0 and Max_Data=0x3F
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetSlaveAddr(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->CR2, I2C_CR2_SADD));
|
|
}
|
|
|
|
/**
|
|
* @brief Handles I2Cx communication when starting transfer or during transfer (TC or TCR flag are set).
|
|
* @rmtoll CR2 SADD LL_I2C_HandleTransfer\n
|
|
* CR2 ADD10 LL_I2C_HandleTransfer\n
|
|
* CR2 RD_WRN LL_I2C_HandleTransfer\n
|
|
* CR2 START LL_I2C_HandleTransfer\n
|
|
* CR2 STOP LL_I2C_HandleTransfer\n
|
|
* CR2 RELOAD LL_I2C_HandleTransfer\n
|
|
* CR2 NBYTES LL_I2C_HandleTransfer\n
|
|
* CR2 AUTOEND LL_I2C_HandleTransfer\n
|
|
* CR2 HEAD10R LL_I2C_HandleTransfer
|
|
* @param I2Cx I2C Instance.
|
|
* @param SlaveAddr Specifies the slave address to be programmed.
|
|
* @param SlaveAddrSize This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_ADDRSLAVE_7BIT
|
|
* @arg @ref LL_I2C_ADDRSLAVE_10BIT
|
|
* @param TransferSize Specifies the number of bytes to be programmed.
|
|
* This parameter must be a value between Min_Data=0 and Max_Data=255.
|
|
* @param EndMode This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_MODE_RELOAD
|
|
* @arg @ref LL_I2C_MODE_AUTOEND
|
|
* @arg @ref LL_I2C_MODE_SOFTEND
|
|
* @arg @ref LL_I2C_MODE_SMBUS_RELOAD
|
|
* @arg @ref LL_I2C_MODE_SMBUS_AUTOEND_NO_PEC
|
|
* @arg @ref LL_I2C_MODE_SMBUS_SOFTEND_NO_PEC
|
|
* @arg @ref LL_I2C_MODE_SMBUS_AUTOEND_WITH_PEC
|
|
* @arg @ref LL_I2C_MODE_SMBUS_SOFTEND_WITH_PEC
|
|
* @param Request This parameter can be one of the following values:
|
|
* @arg @ref LL_I2C_GENERATE_NOSTARTSTOP
|
|
* @arg @ref LL_I2C_GENERATE_STOP
|
|
* @arg @ref LL_I2C_GENERATE_START_READ
|
|
* @arg @ref LL_I2C_GENERATE_START_WRITE
|
|
* @arg @ref LL_I2C_GENERATE_RESTART_7BIT_READ
|
|
* @arg @ref LL_I2C_GENERATE_RESTART_7BIT_WRITE
|
|
* @arg @ref LL_I2C_GENERATE_RESTART_10BIT_READ
|
|
* @arg @ref LL_I2C_GENERATE_RESTART_10BIT_WRITE
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_HandleTransfer(I2C_TypeDef *I2Cx, uint32_t SlaveAddr, uint32_t SlaveAddrSize,
|
|
uint32_t TransferSize, uint32_t EndMode, uint32_t Request)
|
|
{
|
|
/* Declaration of tmp to prevent undefined behavior of volatile usage */
|
|
uint32_t tmp = ((uint32_t)(((uint32_t)SlaveAddr & I2C_CR2_SADD) | \
|
|
((uint32_t)SlaveAddrSize & I2C_CR2_ADD10) | \
|
|
(((uint32_t)TransferSize << I2C_CR2_NBYTES_Pos) & I2C_CR2_NBYTES) | \
|
|
(uint32_t)EndMode | (uint32_t)Request) & (~0x80000000U));
|
|
|
|
/* update CR2 register */
|
|
MODIFY_REG(I2Cx->CR2, I2C_CR2_SADD | I2C_CR2_ADD10 |
|
|
(I2C_CR2_RD_WRN & (uint32_t)(Request >> (31U - I2C_CR2_RD_WRN_Pos))) |
|
|
I2C_CR2_START | I2C_CR2_STOP | I2C_CR2_RELOAD |
|
|
I2C_CR2_NBYTES | I2C_CR2_AUTOEND | I2C_CR2_HEAD10R,
|
|
tmp);
|
|
}
|
|
|
|
/**
|
|
* @brief Indicate the value of transfer direction (slave mode).
|
|
* @note RESET: Write transfer, Slave enters in receiver mode.
|
|
* SET: Read transfer, Slave enters in transmitter mode.
|
|
* @rmtoll ISR DIR LL_I2C_GetTransferDirection
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Returned value can be one of the following values:
|
|
* @arg @ref LL_I2C_DIRECTION_WRITE
|
|
* @arg @ref LL_I2C_DIRECTION_READ
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetTransferDirection(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->ISR, I2C_ISR_DIR));
|
|
}
|
|
|
|
/**
|
|
* @brief Return the slave matched address.
|
|
* @rmtoll ISR ADDCODE LL_I2C_GetAddressMatchCode
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Value between Min_Data=0x00 and Max_Data=0x3F
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetAddressMatchCode(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->ISR, I2C_ISR_ADDCODE) >> I2C_ISR_ADDCODE_Pos << 1);
|
|
}
|
|
|
|
/**
|
|
* @brief Enable internal comparison of the SMBus Packet Error byte (transmission or reception mode).
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @note This feature is cleared by hardware when the PEC byte is transferred, or when a STOP condition
|
|
or an Address Matched is received.
|
|
* This bit has no effect when RELOAD bit is set.
|
|
* This bit has no effect in device mode when SBC bit is not set.
|
|
* @rmtoll CR2 PECBYTE LL_I2C_EnableSMBusPECCompare
|
|
* @param I2Cx I2C Instance.
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_EnableSMBusPECCompare(I2C_TypeDef *I2Cx)
|
|
{
|
|
SET_BIT(I2Cx->CR2, I2C_CR2_PECBYTE);
|
|
}
|
|
|
|
/**
|
|
* @brief Check if the SMBus Packet Error byte internal comparison is requested or not.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll CR2 PECBYTE LL_I2C_IsEnabledSMBusPECCompare
|
|
* @param I2Cx I2C Instance.
|
|
* @retval State of bit (1 or 0).
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_IsEnabledSMBusPECCompare(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return ((READ_BIT(I2Cx->CR2, I2C_CR2_PECBYTE) == (I2C_CR2_PECBYTE)) ? 1UL : 0UL);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the SMBus Packet Error byte calculated.
|
|
* @note The macro IS_SMBUS_ALL_INSTANCE(I2Cx) can be used to check whether or not
|
|
* SMBus feature is supported by the I2Cx Instance.
|
|
* @rmtoll PECR PEC LL_I2C_GetSMBusPEC
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Value between Min_Data=0x00 and Max_Data=0xFF
|
|
*/
|
|
__STATIC_INLINE uint32_t LL_I2C_GetSMBusPEC(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint32_t)(READ_BIT(I2Cx->PECR, I2C_PECR_PEC));
|
|
}
|
|
|
|
/**
|
|
* @brief Read Receive Data register.
|
|
* @rmtoll RXDR RXDATA LL_I2C_ReceiveData8
|
|
* @param I2Cx I2C Instance.
|
|
* @retval Value between Min_Data=0x00 and Max_Data=0xFF
|
|
*/
|
|
__STATIC_INLINE uint8_t LL_I2C_ReceiveData8(const I2C_TypeDef *I2Cx)
|
|
{
|
|
return (uint8_t)(READ_BIT(I2Cx->RXDR, I2C_RXDR_RXDATA));
|
|
}
|
|
|
|
/**
|
|
* @brief Write in Transmit Data Register .
|
|
* @rmtoll TXDR TXDATA LL_I2C_TransmitData8
|
|
* @param I2Cx I2C Instance.
|
|
* @param Data Value between Min_Data=0x00 and Max_Data=0xFF
|
|
* @retval None
|
|
*/
|
|
__STATIC_INLINE void LL_I2C_TransmitData8(I2C_TypeDef *I2Cx, uint8_t Data)
|
|
{
|
|
WRITE_REG(I2Cx->TXDR, Data);
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#if defined(USE_FULL_LL_DRIVER)
|
|
/** @defgroup I2C_LL_EF_Init Initialization and de-initialization functions
|
|
* @{
|
|
*/
|
|
|
|
ErrorStatus LL_I2C_Init(I2C_TypeDef *I2Cx, const LL_I2C_InitTypeDef *I2C_InitStruct);
|
|
ErrorStatus LL_I2C_DeInit(const I2C_TypeDef *I2Cx);
|
|
void LL_I2C_StructInit(LL_I2C_InitTypeDef *I2C_InitStruct);
|
|
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
#endif /* USE_FULL_LL_DRIVER */
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif /* I2C1 || I2C2 || I2C3 || I2C4 */
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* STM32L4xx_LL_I2C_H */
|