stm32f10x_i2c.rar_STM32 I2C_i2c stm32_stm32 i2c library

/** ****************************************************************************** * @file stm32f10x_i2c.h * @author MCD Application Team * @version V3.2.0 * @date 03/01/2010 * @brief This file contains all the functions prototypes for the I2C firmware * library. ****************************************************************************** * @copy * * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. * * <h2><center>&copy; COPYRIGHT 2010 STMicroelectronics</center></h2> */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __STM32F10x_I2C_H #define __STM32F10x_I2C_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include <stm32f10x.h> /** @addtogroup STM32F10x_StdPeriph_Driver * @{ */ /** @addtogroup I2C * @{ */ /** @defgroup I2C_Exported_Types * @{ */ /** * @brief I2C Init structure definition */ typedef struct { uint32_t I2C_ClockSpeed; /*!< Specifies the clock frequency. This parameter must be set to a value lower than 400kHz */ uint16_t I2C_Mode; /*!< Specifies the I2C mode. This parameter can be a value of @ref I2C_mode */ uint16_t I2C_DutyCycle; /*!< Specifies the I2C fast mode duty cycle. This parameter can be a value of @ref I2C_duty_cycle_in_fast_mode */ uint16_t I2C_OwnAddress1; /*!< Specifies the first device own address. This parameter can be a 7-bit or 10-bit address. */ uint16_t I2C_Ack; /*!< Enables or disables the acknowledgement. This parameter can be a value of @ref I2C_acknowledgement */ uint16_t I2C_AcknowledgedAddress; /*!< Specifies if 7-bit or 10-bit address is acknowledged. This parameter can be a value of @ref I2C_acknowledged_address */ }I2C_InitTypeDef; /** * @} */ /** @defgroup I2C_Exported_Constants * @{ */ #define IS_I2C_ALL_PERIPH(PERIPH) (((PERIPH) == I2C1) || \ ((PERIPH) == I2C2)) /** @defgroup I2C_mode * @{ */ #define I2C_Mode_I2C ((uint16_t)0x0000) #define I2C_Mode_SMBusDevice ((uint16_t)0x0002) #define I2C_Mode_SMBusHost ((uint16_t)0x000A) #define IS_I2C_MODE(MODE) (((MODE) == I2C_Mode_I2C) || \ ((MODE) == I2C_Mode_SMBusDevice) || \ ((MODE) == I2C_Mode_SMBusHost)) /** * @} */ /** @defgroup I2C_duty_cycle_in_fast_mode * @{ */ #define I2C_DutyCycle_16_9 ((uint16_t)0x4000) /*!< I2C fast mode Tlow/Thigh = 16/9 */ #define I2C_DutyCycle_2 ((uint16_t)0xBFFF) /*!< I2C fast mode Tlow/Thigh = 2 */ #define IS_I2C_DUTY_CYCLE(CYCLE) (((CYCLE) == I2C_DutyCycle_16_9) || \ ((CYCLE) == I2C_DutyCycle_2)) /** * @} */ /** @defgroup I2C_acknowledgement * @{ */ #define I2C_Ack_Enable ((uint16_t)0x0400) #define I2C_Ack_Disable ((uint16_t)0x0000) #define IS_I2C_ACK_STATE(STATE) (((STATE) == I2C_Ack_Enable) || \ ((STATE) == I2C_Ack_Disable)) /** * @} */ /** @defgroup I2C_transfer_direction * @{ */ #define I2C_Direction_Transmitter ((uint8_t)0x00) #define I2C_Direction_Receiver ((uint8_t)0x01) #define IS_I2C_DIRECTION(DIRECTION) (((DIRECTION) == I2C_Direction_Transmitter) || \ ((DIRECTION) == I2C_Direction_Receiver)) /** * @} */ /** @defgroup I2C_acknowledged_address * @{ */ #define I2C_AcknowledgedAddress_7bit ((uint16_t)0x4000) #define I2C_AcknowledgedAddress_10bit ((uint16_t)0xC000) #define IS_I2C_ACKNOWLEDGE_ADDRESS(ADDRESS) (((ADDRESS) == I2C_AcknowledgedAddress_7bit) || \ ((ADDRESS) == I2C_AcknowledgedAddress_10bit)) /** * @} */ /** @defgroup I2C_registers * @{ */ #define I2C_Register_CR1 ((uint8_t)0x00) #define I2C_Register_CR2 ((uint8_t)0x04) #define I2C_Register_OAR1 ((uint8_t)0x08) #define I2C_Register_OAR2 ((uint8_t)0x0C) #define I2C_Register_DR ((uint8_t)0x10) #define I2C_Register_SR1 ((uint8_t)0x14) #define I2C_Register_SR2 ((uint8_t)0x18) #define I2C_Register_CCR ((uint8_t)0x1C) #define I2C_Register_TRISE ((uint8_t)0x20) #define IS_I2C_REGISTER(REGISTER) (((REGISTER) == I2C_Register_CR1) || \ ((REGISTER) == I2C_Register_CR2) || \ ((REGISTER) == I2C_Register_OAR1) || \ ((REGISTER) == I2C_Register_OAR2) || \ ((REGISTER) == I2C_Register_DR) || \ ((REGISTER) == I2C_Register_SR1) || \ ((REGISTER) == I2C_Register_SR2) || \ ((REGISTER) == I2C_Register_CCR) || \ ((REGISTER) == I2C_Register_TRISE)) /** * @} */ /** @defgroup I2C_SMBus_alert_pin_level * @{ */ #define I2C_SMBusAlert_Low ((uint16_t)0x2000) #define I2C_SMBusAlert_High ((uint16_t)0xDFFF) #define IS_I2C_SMBUS_ALERT(ALERT) (((ALERT) == I2C_SMBusAlert_Low) || \ ((ALERT) == I2C_SMBusAlert_High)) /** * @} */ /** @defgroup I2C_PEC_position * @{ */ #define I2C_PECPosition_Next ((uint16_t)0x0800) #define I2C_PECPosition_Current ((uint16_t)0xF7FF) #define IS_I2C_PEC_POSITION(POSITION) (((POSITION) == I2C_PECPosition_Next) || \ ((POSITION) == I2C_PECPosition_Current)) /** * @} */ /** @defgroup I2C_interrupts_definition * @{ */ #define I2C_IT_BUF ((uint16_t)0x0400) #define I2C_IT_EVT ((uint16_t)0x0200) #define I2C_IT_ERR ((uint16_t)0x0100) #define IS_I2C_CONFIG_IT(IT) ((((IT) & (uint16_t)0xF8FF) == 0x00) && ((IT) != 0x00)) /** * @} */ /** @defgroup I2C_interrupts_definition * @{ */ #define I2C_IT_SMBALERT ((uint32_t)0x01008000) #define I2C_IT_TIMEOUT ((uint32_t)0x01004000) #define I2C_IT_PECERR ((uint32_t)0x01001000) #define I2C_IT_OVR ((uint32_t)0x01000800) #define I2C_IT_AF ((uint32_t)0x01000400) #define I2C_IT_ARLO ((uint32_t)0x01000200) #define I2C_IT_BERR ((uint32_t)0x01000100) #define I2C_IT_TXE ((uint32_t)0x06000080) #define I2C_IT_RXNE ((uint32_t)0x06000040) #define I2C_IT_STOPF ((uint32_t)0x02000010) #define I2C_IT_ADD10 ((uint32_t)0x02000008) #define I2C_IT_BTF ((uint32_t)0x02000004) #define I2C_IT_ADDR ((uint32_t)0x02000002) #define I2C_IT_SB ((uint32_t)0x02000001) #define IS_I2C_CLEAR_IT(IT) ((((IT) & (uint16_t)0x20FF)