i2c.h

[詳解]

/*****************************************************************************
 *   i2c.h:  Header file for NXP LPC13xx Family Microprocessors
 *
 *   Copyright(C) 2006, NXP Semiconductor
 *   All rights reserved.
 *
 *   History
 *   2006.07.19  ver 1.00    Preliminary version, first Release
 *
******************************************************************************/
#ifndef __I2C_H 
#define __I2C_H

#define FAST_MODE_PLUS  0

#define BUFSIZE         0x80
#define MAX_TIMEOUT     0x00FFFFFF

#define I2CMASTER       0x01
#define I2CSLAVE        0x02

#define MPU6050_W       0xd0
#define MPU6050_R       0xd1
#define AK8975_W        0x18
#define AK8975_R        0x19
#define PCF8594_ADDR    0xA0

#define READ_WRITE      0x01

#define RD_BIT          0x01

#define I2C_IDLE            0
#define I2C_STARTED         1
#define I2C_RESTARTED       2
#define I2C_REPEATED_START  3
#define DATA_ACK            4
#define DATA_NACK           5

#define I2CONSET_I2EN       0x00000040  /* I2C Control Set Register */
#define I2CONSET_AA         0x00000004
#define I2CONSET_SI         0x00000008
#define I2CONSET_STO        0x00000010
#define I2CONSET_STA        0x00000020

#define I2CONCLR_AAC        0x00000004  /* I2C Control clear Register */
#define I2CONCLR_SIC        0x00000008
#define I2CONCLR_STAC       0x00000020
#define I2CONCLR_I2ENC      0x00000040

#define I2DAT_I2C           0x00000000  /* I2C Data Reg */
#define I2ADR_I2C           0x00000000  /* I2C Slave Address Reg */
#define I2SCLH_SCLH         0x00000180  /* I2C SCL Duty Cycle High Reg */
#define I2SCLL_SCLL         0x00000180  /* I2C SCL Duty Cycle Low Reg */
#define I2SCLH_HS_SCLH      0x00000020  /* Fast Plus I2C SCL Duty Cycle High Reg */
#define I2SCLL_HS_SCLL      0x00000020  /* Fast Plus I2C SCL Duty Cycle Low Reg */


extern void I2C_IRQHandler( void );
extern uint32_t I2CInit( uint32_t I2cMode );
extern uint32_t I2CStart( void );
extern uint32_t I2CStop( void );
extern uint32_t I2CEngine( void );

#endif /* end __I2C_H */
/****************************************************************************
**                            End Of File
*****************************************************************************/