iic.h

采用华邦79E834+HT1380+24C04实现全自动抽水将置的源程式。如要疑问可发Email到[e-mail]。

/******************************************************************************
*
* Purpose:      IIC.c
*
* Creator:      Rob Lansbergen
*
* Version:		$Revision: 2 $
*
* File Name:	$Workfile: iic.h $
* Prototypes for functions in iic.c
 */
#ifndef iic_h
#define iic_h


void i2c_init(void);

unsigned char i2c_start(void);

void i2c_stop(void);
unsigned char i2c_send_ex(unsigned char addr, unsigned char count, unsigned char send_stop); /*uses fixed buffer*/
unsigned char i2c_sendbuf_ex(unsigned char addr, unsigned char *buf, unsigned char count, unsigned char send_stop);
unsigned char i2c_recv(unsigned char count);
unsigned char I2cSentByte(unsigned char dat);

unsigned char I2C_Write_Byte(unsigned char map,unsigned char dat);
unsigned char I2C_Read_Byte(unsigned char map);
unsigned char I2C_Read_Buf (unsigned char addr, unsigned char rx_count);
unsigned char I2C_Write_Buf (unsigned char addr, unsigned char *buf, unsigned char count, unsigned char flash_type);

extern unsigned char i2c_error;          /* Set to last error value, see below */
extern unsigned char I2C_Data_buf[6];
extern unsigned char i2cSlaveAddress;

#define I2CERR_OK       0       /* No error */
#define I2CERR_NAK      1       /* No ACK from slave */
#define I2CERR_LOST     2       /* Arbitration lost */
#define I2CERR_BUS      3       /* Bus is stuck (not used yet) */
#define I2CERR_TIMEOUT  4       /* Timeout on bus */

#endif