i2c.h

IARSOURCECODE是基于LPC2478嵌入式软件IAR EWARM V4.42的应用实例代码

/*****************************************************************************
 *   I2C.h:  Header file for NXP LPC24xx Family Microprocessors
 *
 *   Copyright(C) 2006, NXP Semiconductor
 *   All rights reserved.
 *
 *   History
 *   2006.09.01  ver 1.00    Prelimnary version, first Release
 *
******************************************************************************/
#ifndef __I2C_H
#define __I2C_H

/* bit 0 in SCS register, port 0/1 are regular ports when bit 0
is 0,  fast ports when bit 0 is 1. */
#define GPIOM			0x00000001

/* see master definition file LPC2468.h for more details */
#define REGULAR_PORT_DIR_BASE		GPIO_BASE_ADDR + 0x08
#define REGULAR_PORT_DIR_INDEX		0x10	

#define HS_PORT_DIR_BASE	FIO_BASE_ADDR + 0x00
#define HS_PORT_DIR_INDEX	0x20

#define FAST_PORT		0x01
#define REGULAR_PORT	        0x02

#define DIR_OUT			0x01
#define DIR_IN			0x02

////////////////////////
//MACRO FOR SPI
///////////////////////
#define MSTR   (1<<5)
#define CPOL   (1<<4)
#define CPHA   (1<<3)
#define LSBF   (1<<6)

#define SPI_MODE     (MSTR|CPOL)

////////////////////////
//MACRO FOR I2C
///////////////////////
#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		0x00000080  /* I2C SCL Duty Cycle High Reg */
#define I2SCLL_SCLL		0x00000080  /* I2C SCL Duty Cycle Low Reg */






extern void GPIOInit( DWORD PortNum, DWORD PortType, DWORD PortDir );
extern void shuma(void);
extern void delay(void);
extern void I2CInit(void);
extern BOOL I2CWriteByte(BYTE data,BYTE address);
extern BYTE I2CReadByte(BYTE address);
#endif /* end __I2C_H */
/*****************************************************************************
**                            End Of File
******************************************************************************/