iic.h

基于S3C44b0的键盘LED接口设计

/**************************************************************************
NAME:IIC.H
copyright:wzz at Qingdao University  2008.12.27
functions:
			head file for s3c44b0 I2C
**************************************************************************/
#ifndef _IIC_H_ 
#define _IIC_H_ 

#define IICACK_EN   0x80
#define IICCLK      0x40
#define IICINT_EN   0x20
#define IICINT_PEND 0x10

#define IICSOUT_EN  0x10
#define IICSTART    0X20

#define IICMODE_SLRX  0x00
#define IICMODE_SLTX  0x01
#define IICMODE_MARX  0x02
#define IICMODE_MATX  0x03

//#define AT24C_IICADDR 0xa0
//#define AT24C02_C1  (0x02<<1)
//#define AT24C02_C2  (0x04<<1)

//The AT24C02 device address is AT24C_IICADDR|AT24C02_Cx
//x <=8,not more than 8 chips on the IIC BUS

void init44B0IIC(U8 mode,U16 clock,U8 sl_add);

void IIC_ReSetACK(U8 ack_yes);
void IIC_ReSetMode(U8 mode);
void IIC_Start(U8 slaveaddr);
void IIC_ReStart(U8 slaveaddr);
void IIC_SendData(U8 *data, U8 num);
void IIC_ReadByte(U8 *byte);
void IIC_ReadData(U8 *data, U8 num);
void IIC_SendByte(U8 byte);
void IIC_Stop(void);

//void WriteAt24cByte(U8 deviceaddr,U8 dataaddr,U8 byte);
//void WriteAt24cPage(U8 deviceaddr,U8 dataaddr,U8 *data);
void I2C_Puts(U8 deviceaddr,U8 dataaddr,U8 *data,U8 num);//IIC发送函数
void I2C_Gets(U8 deviceaddr,U8 dataaddr,U8 *data,U8 num);//IIC接受函数(包含转换模式过程)
//void ReadAt24cCur(U8 deviceaddr,U8 *data,U8 num);


#endif  //_IIC_H_