430i2c.h

一个MSP430的IIC程序

#define uchar           unsigned char
#define uint            unsigned int
#define ulong           unsigned long

#define		SDA             BIT2
#define		SCL             BIT1
#define 	SDA_OUT		P1DIR |=SDA
#define		SDA_IN		P1DIR &=~SDA
#define 	I2C_READ	0x91
#define 	I2C_WRITE	0x90
#define		READ_DATA	0x01
#define		READ_CFG	0x00
void InitI2cPort(void);
void I2C_delay(void);
void i2c_clock(void);
void ack(void);
void nack(void);
void wait_ack(void);
void start_i2c(void);
void stop_i2c(void);
void outbyt(uchar i2c_data);
unsigned char inbyt(void);
void WriteCfgReg(uchar CfgData);
uint ReadDataCfgReg(uchar ReadType );