599 lines
25 KiB
C
599 lines
25 KiB
C
/**
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******************************************************************************
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* @file stm32f7xx_hal_i2c.h
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* @author MCD Application Team
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* @version V1.0.1
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* @date 25-June-2015
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* @brief Header file of I2C HAL module.
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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 __STM32F7xx_HAL_I2C_H
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#define __STM32F7xx_HAL_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 "stm32f7xx_hal_def.h"
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/** @addtogroup STM32F7xx_HAL_Driver
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* @{
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*/
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/** @addtogroup I2C
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* @{
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*/
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/* Exported types ------------------------------------------------------------*/
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/** @defgroup I2C_Exported_Types I2C Exported Types
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* @{
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*/
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/** @defgroup I2C_Configuration_Structure_definition I2C Configuration Structure definition
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* @brief I2C Configuration Structure definition
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* @{
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*/
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typedef struct
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{
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uint32_t Timing; /*!< Specifies the I2C_TIMINGR_register value.
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This parameter calculated by referring to I2C initialization
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section in Reference manual */
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uint32_t OwnAddress1; /*!< Specifies the first device own address.
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This parameter can be a 7-bit or 10-bit address. */
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uint32_t AddressingMode; /*!< Specifies if 7-bit or 10-bit addressing mode is selected.
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This parameter can be a value of @ref I2C_addressing_mode */
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uint32_t DualAddressMode; /*!< Specifies if dual addressing mode is selected.
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This parameter can be a value of @ref I2C_dual_addressing_mode */
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uint32_t OwnAddress2; /*!< Specifies the second device own address if dual addressing mode is selected
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This parameter can be a 7-bit address. */
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uint32_t OwnAddress2Masks; /*!< Specifies the acknoledge mask address second device own address if dual addressing mode is selected
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This parameter can be a value of @ref I2C_own_address2_masks */
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uint32_t GeneralCallMode; /*!< Specifies if general call mode is selected.
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This parameter can be a value of @ref I2C_general_call_addressing_mode */
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uint32_t NoStretchMode; /*!< Specifies if nostretch mode is selected.
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This parameter can be a value of @ref I2C_nostretch_mode */
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}I2C_InitTypeDef;
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/**
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* @}
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*/
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/** @defgroup HAL_state_structure_definition HAL state structure definition
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* @brief HAL State structure definition
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* @{
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*/
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typedef enum
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{
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HAL_I2C_STATE_RESET = 0x00, /*!< I2C not yet initialized or disabled */
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HAL_I2C_STATE_READY = 0x01, /*!< I2C initialized and ready for use */
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HAL_I2C_STATE_BUSY = 0x02, /*!< I2C internal process is ongoing */
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HAL_I2C_STATE_MASTER_BUSY_TX = 0x12, /*!< Master Data Transmission process is ongoing */
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HAL_I2C_STATE_MASTER_BUSY_RX = 0x22, /*!< Master Data Reception process is ongoing */
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HAL_I2C_STATE_SLAVE_BUSY_TX = 0x32, /*!< Slave Data Transmission process is ongoing */
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HAL_I2C_STATE_SLAVE_BUSY_RX = 0x42, /*!< Slave Data Reception process is ongoing */
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HAL_I2C_STATE_MEM_BUSY_TX = 0x52, /*!< Memory Data Transmission process is ongoing */
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HAL_I2C_STATE_MEM_BUSY_RX = 0x62, /*!< Memory Data Reception process is ongoing */
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HAL_I2C_STATE_TIMEOUT = 0x03, /*!< Timeout state */
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HAL_I2C_STATE_ERROR = 0x04 /*!< Reception process is ongoing */
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}HAL_I2C_StateTypeDef;
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/**
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* @}
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*/
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/** @defgroup I2C_Error_Code_definition I2C Error Code definition
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* @brief I2C Error Code definition
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* @{
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*/
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#define HAL_I2C_ERROR_NONE ((uint32_t)0x00000000) /*!< No error */
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#define HAL_I2C_ERROR_BERR ((uint32_t)0x00000001) /*!< BERR error */
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#define HAL_I2C_ERROR_ARLO ((uint32_t)0x00000002) /*!< ARLO error */
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#define HAL_I2C_ERROR_AF ((uint32_t)0x00000004) /*!< ACKF error */
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#define HAL_I2C_ERROR_OVR ((uint32_t)0x00000008) /*!< OVR error */
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#define HAL_I2C_ERROR_DMA ((uint32_t)0x00000010) /*!< DMA transfer error */
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#define HAL_I2C_ERROR_TIMEOUT ((uint32_t)0x00000020) /*!< Timeout error */
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#define HAL_I2C_ERROR_SIZE ((uint32_t)0x00000040) /*!< Size Management error */
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/**
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* @}
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*/
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/** @defgroup I2C_handle_Structure_definition I2C handle Structure definition
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* @brief I2C handle Structure definition
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* @{
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*/
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typedef struct
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{
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I2C_TypeDef *Instance; /*!< I2C registers base address */
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I2C_InitTypeDef Init; /*!< I2C communication parameters */
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uint8_t *pBuffPtr; /*!< Pointer to I2C transfer buffer */
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uint16_t XferSize; /*!< I2C transfer size */
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__IO uint16_t XferCount; /*!< I2C transfer counter */
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DMA_HandleTypeDef *hdmatx; /*!< I2C Tx DMA handle parameters */
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DMA_HandleTypeDef *hdmarx; /*!< I2C Rx DMA handle parameters */
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HAL_LockTypeDef Lock; /*!< I2C locking object */
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__IO HAL_I2C_StateTypeDef State; /*!< I2C communication state */
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__IO uint32_t ErrorCode; /*!< I2C Error code */
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}I2C_HandleTypeDef;
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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 constants --------------------------------------------------------*/
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/** @defgroup I2C_Exported_Constants I2C Exported Constants
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* @{
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*/
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/** @defgroup I2C_addressing_mode I2C addressing mode
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* @{
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*/
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#define I2C_ADDRESSINGMODE_7BIT ((uint32_t)0x00000001)
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#define I2C_ADDRESSINGMODE_10BIT ((uint32_t)0x00000002)
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/**
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* @}
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*/
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/** @defgroup I2C_dual_addressing_mode I2C dual addressing mode
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* @{
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*/
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#define I2C_DUALADDRESS_DISABLE ((uint32_t)0x00000000)
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#define I2C_DUALADDRESS_ENABLE I2C_OAR2_OA2EN
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/**
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* @}
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*/
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/** @defgroup I2C_own_address2_masks I2C own address2 masks
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* @{
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*/
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#define I2C_OA2_NOMASK ((uint8_t)0x00)
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#define I2C_OA2_MASK01 ((uint8_t)0x01)
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#define I2C_OA2_MASK02 ((uint8_t)0x02)
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#define I2C_OA2_MASK03 ((uint8_t)0x03)
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#define I2C_OA2_MASK04 ((uint8_t)0x04)
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#define I2C_OA2_MASK05 ((uint8_t)0x05)
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#define I2C_OA2_MASK06 ((uint8_t)0x06)
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#define I2C_OA2_MASK07 ((uint8_t)0x07)
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/**
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* @}
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*/
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/** @defgroup I2C_general_call_addressing_mode I2C general call addressing mode
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* @{
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*/
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#define I2C_GENERALCALL_DISABLE ((uint32_t)0x00000000)
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#define I2C_GENERALCALL_ENABLE I2C_CR1_GCEN
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/**
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* @}
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*/
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/** @defgroup I2C_nostretch_mode I2C nostretch mode
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* @{
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*/
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#define I2C_NOSTRETCH_DISABLE ((uint32_t)0x00000000)
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#define I2C_NOSTRETCH_ENABLE I2C_CR1_NOSTRETCH
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/**
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* @}
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*/
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/** @defgroup I2C_Memory_Address_Size I2C Memory Address Size
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* @{
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*/
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#define I2C_MEMADD_SIZE_8BIT ((uint32_t)0x00000001)
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#define I2C_MEMADD_SIZE_16BIT ((uint32_t)0x00000002)
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/**
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* @}
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*/
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/** @defgroup I2C_ReloadEndMode_definition I2C ReloadEndMode definition
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* @{
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*/
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#define I2C_RELOAD_MODE I2C_CR2_RELOAD
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#define I2C_AUTOEND_MODE I2C_CR2_AUTOEND
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#define I2C_SOFTEND_MODE ((uint32_t)0x00000000)
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/**
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* @}
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*/
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/** @defgroup I2C_StartStopMode_definition I2C StartStopMode definition
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* @{
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*/
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#define I2C_NO_STARTSTOP ((uint32_t)0x00000000)
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#define I2C_GENERATE_STOP I2C_CR2_STOP
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#define I2C_GENERATE_START_READ (uint32_t)(I2C_CR2_START | I2C_CR2_RD_WRN)
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#define I2C_GENERATE_START_WRITE I2C_CR2_START
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/**
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* @}
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*/
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/** @defgroup I2C_Interrupt_configuration_definition I2C Interrupt configuration definition
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* @brief I2C Interrupt definition
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* Elements values convention: 0xXXXXXXXX
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* - XXXXXXXX : Interrupt control mask
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* @{
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*/
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#define I2C_IT_ERRI I2C_CR1_ERRIE
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#define I2C_IT_TCI I2C_CR1_TCIE
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#define I2C_IT_STOPI I2C_CR1_STOPIE
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#define I2C_IT_NACKI I2C_CR1_NACKIE
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#define I2C_IT_ADDRI I2C_CR1_ADDRIE
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#define I2C_IT_RXI I2C_CR1_RXIE
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#define I2C_IT_TXI I2C_CR1_TXIE
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/**
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* @}
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*/
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/** @defgroup I2C_Flag_definition I2C Flag definition
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* @{
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*/
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#define I2C_FLAG_TXE I2C_ISR_TXE
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#define I2C_FLAG_TXIS I2C_ISR_TXIS
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#define I2C_FLAG_RXNE I2C_ISR_RXNE
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#define I2C_FLAG_ADDR I2C_ISR_ADDR
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#define I2C_FLAG_AF I2C_ISR_NACKF
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#define I2C_FLAG_STOPF I2C_ISR_STOPF
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#define I2C_FLAG_TC I2C_ISR_TC
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#define I2C_FLAG_TCR I2C_ISR_TCR
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#define I2C_FLAG_BERR I2C_ISR_BERR
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#define I2C_FLAG_ARLO I2C_ISR_ARLO
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#define I2C_FLAG_OVR I2C_ISR_OVR
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#define I2C_FLAG_PECERR I2C_ISR_PECERR
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#define I2C_FLAG_TIMEOUT I2C_ISR_TIMEOUT
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#define I2C_FLAG_ALERT I2C_ISR_ALERT
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#define I2C_FLAG_BUSY I2C_ISR_BUSY
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#define I2C_FLAG_DIR I2C_ISR_DIR
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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 macros -----------------------------------------------------------*/
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/** @defgroup I2C_Exported_Macros I2C Exported Macros
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* @{
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*/
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/** @brief Reset I2C handle state
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* @param __HANDLE__: specifies the I2C Handle.
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* @retval None
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*/
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#define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_I2C_STATE_RESET)
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/** @brief Enable the specified I2C interrupts.
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* @param __HANDLE__: specifies the I2C Handle.
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* @param __INTERRUPT__: specifies the interrupt source to enable.
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* This parameter can be one of the following values:
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* @arg I2C_IT_ERRI: Errors interrupt enable
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* @arg I2C_IT_TCI: Transfer complete interrupt enable
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* @arg I2C_IT_STOPI: STOP detection interrupt enable
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* @arg I2C_IT_NACKI: NACK received interrupt enable
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* @arg I2C_IT_ADDRI: Address match interrupt enable
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* @arg I2C_IT_RXI: RX interrupt enable
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* @arg I2C_IT_TXI: TX interrupt enable
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*
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* @retval None
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*/
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#define __HAL_I2C_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR1 |= (__INTERRUPT__))
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/** @brief Disable the specified I2C interrupts.
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* @param __HANDLE__: specifies the I2C Handle.
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* @param __INTERRUPT__: specifies the interrupt source to disable.
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* This parameter can be one of the following values:
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* @arg I2C_IT_ERRI: Errors interrupt enable
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* @arg I2C_IT_TCI: Transfer complete interrupt enable
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* @arg I2C_IT_STOPI: STOP detection interrupt enable
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* @arg I2C_IT_NACKI: NACK received interrupt enable
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* @arg I2C_IT_ADDRI: Address match interrupt enable
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* @arg I2C_IT_RXI: RX interrupt enable
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* @arg I2C_IT_TXI: TX interrupt enable
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*
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* @retval None
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*/
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#define __HAL_I2C_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR1 &= (~(__INTERRUPT__)))
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/** @brief Checks if the specified I2C interrupt source is enabled or disabled.
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* @param __HANDLE__: specifies the I2C Handle.
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* @param __INTERRUPT__: specifies the I2C interrupt source to check.
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* This parameter can be one of the following values:
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* @arg I2C_IT_ERRI: Errors interrupt enable
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* @arg I2C_IT_TCI: Transfer complete interrupt enable
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* @arg I2C_IT_STOPI: STOP detection interrupt enable
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* @arg I2C_IT_NACKI: NACK received interrupt enable
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* @arg I2C_IT_ADDRI: Address match interrupt enable
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* @arg I2C_IT_RXI: RX interrupt enable
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* @arg I2C_IT_TXI: TX interrupt enable
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*
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* @retval The new state of __INTERRUPT__ (TRUE or FALSE).
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*/
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#define __HAL_I2C_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->CR1 & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET)
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/** @brief Checks whether the specified I2C flag is set or not.
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* @param __HANDLE__: specifies the I2C Handle.
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* @param __FLAG__: specifies the flag to check.
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* This parameter can be one of the following values:
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* @arg I2C_FLAG_TXE: Transmit data register empty
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* @arg I2C_FLAG_TXIS: Transmit interrupt status
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* @arg I2C_FLAG_RXNE: Receive data register not empty
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* @arg I2C_FLAG_ADDR: Address matched (slave mode)
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* @arg I2C_FLAG_AF: Acknowledge failure received flag
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* @arg I2C_FLAG_STOPF: STOP detection flag
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* @arg I2C_FLAG_TC: Transfer complete (master mode)
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* @arg I2C_FLAG_TCR: Transfer complete reload
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* @arg I2C_FLAG_BERR: Bus error
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* @arg I2C_FLAG_ARLO: Arbitration lost
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* @arg I2C_FLAG_OVR: Overrun/Underrun
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* @arg I2C_FLAG_PECERR: PEC error in reception
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* @arg I2C_FLAG_TIMEOUT: Timeout or Tlow detection flag
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* @arg I2C_FLAG_ALERT: SMBus alert
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* @arg I2C_FLAG_BUSY: Bus busy
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* @arg I2C_FLAG_DIR: Transfer direction (slave mode)
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*
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* @retval The new state of __FLAG__ (TRUE or FALSE).
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*/
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#define I2C_FLAG_MASK ((uint32_t)0x0001FFFF)
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#define __HAL_I2C_GET_FLAG(__HANDLE__, __FLAG__) (((((__HANDLE__)->Instance->ISR) & ((__FLAG__) & I2C_FLAG_MASK)) == ((__FLAG__) & I2C_FLAG_MASK)))
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/** @brief Clears the I2C pending flags which are cleared by writing 1 in a specific bit.
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* @param __HANDLE__: specifies the I2C Handle.
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* @param __FLAG__: specifies the flag to clear.
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* This parameter can be any combination of the following values:
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* @arg I2C_FLAG_ADDR: Address matched (slave mode)
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* @arg I2C_FLAG_AF: Acknowledge failure received flag
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* @arg I2C_FLAG_STOPF: STOP detection flag
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* @arg I2C_FLAG_BERR: Bus error
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* @arg I2C_FLAG_ARLO: Arbitration lost
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* @arg I2C_FLAG_OVR: Overrun/Underrun
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* @arg I2C_FLAG_PECERR: PEC error in reception
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* @arg I2C_FLAG_TIMEOUT: Timeout or Tlow detection flag
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* @arg I2C_FLAG_ALERT: SMBus alert
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*
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* @retval None
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*/
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#define __HAL_I2C_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->ICR = ((__FLAG__) & I2C_FLAG_MASK))
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/** @brief Enable the specified I2C peripheral.
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* @param __HANDLE__: specifies the I2C Handle.
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* @retval None
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*/
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#define __HAL_I2C_ENABLE(__HANDLE__) (SET_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE))
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/** @brief Disable the specified I2C peripheral.
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* @param __HANDLE__: specifies the I2C Handle.
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* @retval None
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*/
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#define __HAL_I2C_DISABLE(__HANDLE__) (CLEAR_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE))
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/**
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* @}
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*/
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/* Include I2C HAL Extension module */
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#include "stm32f7xx_hal_i2c_ex.h"
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/* Exported functions --------------------------------------------------------*/
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/** @addtogroup I2C_Exported_Functions
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* @{
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*/
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/** @addtogroup I2C_Exported_Functions_Group1 Initialization and de-initialization functions
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* @{
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*/
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/* Initialization and de-initialization functions******************************/
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HAL_StatusTypeDef HAL_I2C_Init(I2C_HandleTypeDef *hi2c);
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HAL_StatusTypeDef HAL_I2C_DeInit (I2C_HandleTypeDef *hi2c);
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void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c);
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void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c);
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/**
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* @}
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*/
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/** @addtogroup I2C_Exported_Functions_Group2 Input and Output operation functions
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* @{
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*/
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/* IO operation functions ****************************************************/
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/******* Blocking mode: Polling */
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HAL_StatusTypeDef HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout);
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HAL_StatusTypeDef HAL_I2C_Master_Receive(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout);
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HAL_StatusTypeDef HAL_I2C_Slave_Transmit(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout);
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HAL_StatusTypeDef HAL_I2C_Slave_Receive(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout);
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HAL_StatusTypeDef HAL_I2C_Mem_Write(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout);
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HAL_StatusTypeDef HAL_I2C_Mem_Read(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout);
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HAL_StatusTypeDef HAL_I2C_IsDeviceReady(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout);
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/******* Non-Blocking mode: Interrupt */
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HAL_StatusTypeDef HAL_I2C_Master_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
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HAL_StatusTypeDef HAL_I2C_Master_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
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HAL_StatusTypeDef HAL_I2C_Slave_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
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HAL_StatusTypeDef HAL_I2C_Slave_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
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HAL_StatusTypeDef HAL_I2C_Mem_Write_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size);
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HAL_StatusTypeDef HAL_I2C_Mem_Read_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size);
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/******* Non-Blocking mode: DMA */
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HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
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HAL_StatusTypeDef HAL_I2C_Master_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
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HAL_StatusTypeDef HAL_I2C_Slave_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
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HAL_StatusTypeDef HAL_I2C_Slave_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
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HAL_StatusTypeDef HAL_I2C_Mem_Write_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size);
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HAL_StatusTypeDef HAL_I2C_Mem_Read_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size);
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/**
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* @}
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*/
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/** @addtogroup IRQ_Handler_and_Callbacks IRQ Handler and Callbacks
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* @{
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*/
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/******* I2C IRQHandler and Callbacks used in non blocking modes (Interrupt and DMA) */
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void HAL_I2C_EV_IRQHandler(I2C_HandleTypeDef *hi2c);
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void HAL_I2C_ER_IRQHandler(I2C_HandleTypeDef *hi2c);
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void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c);
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void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c);
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void HAL_I2C_SlaveTxCpltCallback(I2C_HandleTypeDef *hi2c);
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void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c);
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void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c);
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void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c);
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void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c);
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/**
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* @}
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*/
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/** @addtogroup I2C_Exported_Functions_Group3 Peripheral State and Errors functions
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* @{
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*/
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/* Peripheral State and Errors functions *************************************/
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HAL_I2C_StateTypeDef HAL_I2C_GetState(I2C_HandleTypeDef *hi2c);
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uint32_t HAL_I2C_GetError(I2C_HandleTypeDef *hi2c);
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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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/* Private constants ---------------------------------------------------------*/
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/** @defgroup I2C_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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/** @defgroup I2C_Private_Macro I2C Private Macros
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* @{
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*/
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#define IS_I2C_ADDRESSING_MODE(MODE) (((MODE) == I2C_ADDRESSINGMODE_7BIT) || \
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((MODE) == I2C_ADDRESSINGMODE_10BIT))
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#define IS_I2C_DUAL_ADDRESS(ADDRESS) (((ADDRESS) == I2C_DUALADDRESS_DISABLE) || \
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((ADDRESS) == I2C_DUALADDRESS_ENABLE))
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#define IS_I2C_OWN_ADDRESS2_MASK(MASK) (((MASK) == I2C_OA2_NOMASK) || \
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((MASK) == I2C_OA2_MASK01) || \
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((MASK) == I2C_OA2_MASK02) || \
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((MASK) == I2C_OA2_MASK03) || \
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((MASK) == I2C_OA2_MASK04) || \
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((MASK) == I2C_OA2_MASK05) || \
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((MASK) == I2C_OA2_MASK06) || \
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((MASK) == I2C_OA2_MASK07))
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#define IS_I2C_GENERAL_CALL(CALL) (((CALL) == I2C_GENERALCALL_DISABLE) || \
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((CALL) == I2C_GENERALCALL_ENABLE))
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#define IS_I2C_NO_STRETCH(STRETCH) (((STRETCH) == I2C_NOSTRETCH_DISABLE) || \
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((STRETCH) == I2C_NOSTRETCH_ENABLE))
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#define IS_I2C_MEMADD_SIZE(SIZE) (((SIZE) == I2C_MEMADD_SIZE_8BIT) || \
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((SIZE) == I2C_MEMADD_SIZE_16BIT))
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|
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#define IS_TRANSFER_MODE(MODE) (((MODE) == I2C_RELOAD_MODE) || \
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((MODE) == I2C_AUTOEND_MODE) || \
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((MODE) == I2C_SOFTEND_MODE))
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#define IS_TRANSFER_REQUEST(REQUEST) (((REQUEST) == I2C_GENERATE_STOP) || \
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((REQUEST) == I2C_GENERATE_START_READ) || \
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((REQUEST) == I2C_GENERATE_START_WRITE) || \
|
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((REQUEST) == I2C_NO_STARTSTOP))
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|
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#define I2C_RESET_CR2(__HANDLE__) ((__HANDLE__)->Instance->CR2 &= (uint32_t)~((uint32_t)(I2C_CR2_SADD | I2C_CR2_HEAD10R | I2C_CR2_NBYTES | I2C_CR2_RELOAD | I2C_CR2_RD_WRN)))
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|
|
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#define IS_I2C_OWN_ADDRESS1(ADDRESS1) ((ADDRESS1) <= (uint32_t)0x000003FF)
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|
#define IS_I2C_OWN_ADDRESS2(ADDRESS2) ((ADDRESS2) <= (uint16_t)0x00FF)
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#define I2C_MEM_ADD_MSB(__ADDRESS__) ((uint8_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)(0xFF00))) >> 8)))
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|
#define I2C_MEM_ADD_LSB(__ADDRESS__) ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)(0x00FF))))
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|
|
|
#define I2C_GENERATE_START(__ADDMODE__,__ADDRESS__) (((__ADDMODE__) == I2C_ADDRESSINGMODE_7BIT) ? (uint32_t)((((uint32_t)(__ADDRESS__) & (I2C_CR2_SADD)) | (I2C_CR2_START) | (I2C_CR2_AUTOEND)) & (~I2C_CR2_RD_WRN)) : \
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|
(uint32_t)((((uint32_t)(__ADDRESS__) & (I2C_CR2_SADD)) | (I2C_CR2_ADD10) | (I2C_CR2_START)) & (~I2C_CR2_RD_WRN)))
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/* Private Functions ---------------------------------------------------------*/
|
|
/** @defgroup I2C_Private_Functions I2C Private Functions
|
|
* @{
|
|
*/
|
|
/* Private functions are defined in stm32f7xx_hal_i2c.c file */
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
#endif /* __STM32F7xx_HAL_I2C_H */
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|
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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