#ifndef __IIC_H__
#define __IIC_H__
#include "common.h"
/** @addtogroup I2C_Registers_Bits_Definition
  * @{
  */
#define SLAVE_ADDRESS 0x51 /*!< Define Slave Address */

#define I2C_CR1_NOSTRETCH ((uchar)0x80) /*!< Clock Stretching Disable (Slave mode) */
#define I2C_CR1_ENGC      ((uchar)0x40) /*!< General Call Enable */
#define I2C_CR1_PE        ((uchar)0x01) /*!< Peripheral Enable */

#define I2C_CR2_SWRST ((uchar)0x80) /*!< Software Reset */
#define I2C_CR2_POS   ((uchar)0x08) /*!< Acknowledge */
#define I2C_CR2_ACK   ((uchar)0x04) /*!< Acknowledge Enable */
#define I2C_CR2_STOP  ((uchar)0x02) /*!< Stop Generation */
#define I2C_CR2_START ((uchar)0x01) /*!< Start Generation */

#define I2C_FREQR_FREQ ((uchar)0x3F) /*!< Peripheral Clock Frequency */

#define I2C_OARL_ADD  ((uchar)0xFE) /*!< Interface Address bits [7..1] */
#define I2C_OARL_ADD0 ((uchar)0x01) /*!< Interface Address bit0 */

#define I2C_OARH_ADDMODE ((uchar)0x80) /*!< Addressing Mode (Slave mode) */
#define I2C_OARH_ADDCONF ((uchar)0x40) /*!< Address Mode Configuration */
#define I2C_OARH_ADD     ((uchar)0x06) /*!< Interface Address bits [9..8] */

#define I2C_DR_DR ((uchar)0xFF) /*!< Data Register */

#define I2C_SR1_TXE   ((uchar)0x80) /*!< Data Register Empty (transmitters) */
#define I2C_SR1_RXNE  ((uchar)0x40) /*!< Data Register not Empty (receivers) */
#define I2C_SR1_STOPF ((uchar)0x10) /*!< Stop detection (Slave mode) */
#define I2C_SR1_ADD10 ((uchar)0x08) /*!< 10-bit header sent (Master mode) */
#define I2C_SR1_BTF   ((uchar)0x04) /*!< Byte Transfer Finished */
#define I2C_SR1_ADDR  ((uchar)0x02) /*!< Address sent (master mode)/matched (slave mode) */
#define I2C_SR1_SB    ((uchar)0x01) /*!< Start Bit (Master mode) */

#define I2C_SR2_WUFH    ((uchar)0x20) /*!< Wake-up from Halt */
#define I2C_SR2_OVR     ((uchar)0x08) /*!< Overrun/Underrun */
#define I2C_SR2_AF      ((uchar)0x04) /*!< Acknowledge Failure */
#define I2C_SR2_ARLO    ((uchar)0x02) /*!< Arbitration Lost (master mode) */
#define I2C_SR2_BERR    ((uchar)0x01) /*!< Bus Error */

#define I2C_SR3_GENCALL ((uchar)0x10) /*!< General Call Header (Slave mode) */
#define I2C_SR3_TRA     ((uchar)0x04) /*!< Transmitter/Receiver */
#define I2C_SR3_BUSY    ((uchar)0x02) /*!< Bus Busy */
#define I2C_SR3_MSL     ((uchar)0x01) /*!< Master/Slave */

#define I2C_ITR_ITBUFEN ((uchar)0x04) /*!< Buffer Interrupt Enable */
#define I2C_ITR_ITEVTEN ((uchar)0x02) /*!< Event Interrupt Enable */
#define I2C_ITR_ITERREN ((uchar)0x01) /*!< Error Interrupt Enable */

#define I2C_CCRL_CCR ((uchar)0xFF) /*!< Clock Control Register (Master mode) */

#define I2C_CCRH_FS   ((uchar)0x80) /*!< Master Mode Selection */
#define I2C_CCRH_DUTY ((uchar)0x40) /*!< Fast Mode Duty Cycle */
#define I2C_CCRH_CCR  ((uchar)0x0F) /*!< Clock Control Register in Fast/Standard mode (Master mode) bits [11..8] */

#define I2C_TRISER_TRISE ((uchar)0x3F) /*!< Maximum Rise Time in Fast/Standard mode (Master mode) */


//I2C的缓冲区最大值
#define I2C_MAX_SIZE 32

void IIC_Init(void);

#endif