www.pudn.com > 2minilib.rar > iic.h

/***************************************************************************\ 
	Copyright (c) 2004-2007 threewater@up-tech.com, All rights reserved. 
	by threewter	2005.2.26 
\***************************************************************************/ 
/***************************************************************************\ 
    #说明: iic接口驱动程序头文件 
	----------------------------------  Bug  -------------------------------------- 
 
	----------------------------------  TODO list  -------------------------------------- 
 
	----------------------------------修正-------------------------------------- 
 
	2005-2-26	创建 
 
\***************************************************************************/ 
 
#ifndef __ASM_ARCH_IIC_H__ 
#define __ASM_ARCH_IIC_H__ 
 
#define IICCON_ACKEN			(1<<7)	//IIC-bus acknowledge enable bit. 
#define IICCON_CLK512			(1<<6)	// 1 = IICCLK = fPCLK /512 
#define IICCON_INTR				(1<<5)	// IIC-Bus Tx/Rx interrupt enable/disable bit. 
#define IICCON_INTPEND			(1<<4)	// IIC-bus Tx/Rx interrupt pending flag. 
#define IICCON_CLKPRE(x)			FInsrt((x), Fld(4, 0)) 
#define IICSTAT_MODE_SR		(0<<6)	//Slave receive mode 
#define IICSTAT_MODE_ST		(1<<6)	//Slave transmit mode 
#define IICSTAT_MODE_MR		(2<<6)	//Master receive mode 
#define IICSTAT_MODE_MT		(3<<6)	//Master transmit mode 
#define IICSTAT_MODE_MSK		(3<<6) 
#define IICSTAT_BUSY			(1<<5)	//IIC-Bus busy signal status bit.(read) 
#define IICSTAT_START			(1<<5)	//START signal generation.(write) 
#define IICSTAT_OUTEN			(1<<4)	//IIC-bus data output enable 
#define IICSTAT_ARBFAILED		(1<<3)	//Bus arbitration failed during serial I/O 
#define IICSTAT_SLAVEADDR		(1<<2)	//IIC slave address match 
#define IICSTAT_ACK				(1) 
 
 
void Set_IIC_mode(int nIICCON, int *poldIICCON); 
void IIC_init(void); 
void IIC_MasterTxStart(char data); 
void IIC_MasterTx(char data); 
char IIC_MasterRx(int isACK); 
void IIC_MasterRxStart(char address); 
void IIC_MasterTxStop(void); 
void IIC_MasterRxStop(void); 
unsigned char IIC_Read(char devaddr, char address); 
void IIC_Write(char devaddr, char address, unsigned char data); 
void IIC_ReadSerial(char devaddr, char address, unsigned char* pdata, int n); 
void IIC_WriteSerial(char devaddr, char address, unsigned char* pdata, int n); 
void IIC_Send(char devaddr, const char* pdata, int n); 
 
#endif