I2C实现接收传感器信号

si7006.h

#ifndef __SI7006_H__
#define __SI7006_H__
#include "iic.h"

void si7006_init();
short si7006_read_tem();
unsigned short si7006_read_hum();
#endif

ap3216c.h

#ifndef __AP3216C_H__
#define __AP3216C_H__

#include "iic.h"

/* 通过程序模拟实现I2C总线的时序和协议
 * GPIOF ---> AHB4
 * I2C1_SCL ---> PF14
 * I2C1_SDA ---> PF15
 *
 * */
#define     AP3216C_ADDR    0x1E

unsigned char ap3216c_init(void);
unsigned char ap3216c_read_byte(unsigned char slave_addr,
					unsigned char reg_addr);
void  ap3216c_write_byte(unsigned char slave_addr,
					unsigned char reg_addr, 
					unsigned char dat);

void ap3216c_read_data(unsigned short* ir, 
					unsigned short* ps, 
					unsigned short* als);

#endif //__SI7006_H__

si7006.c

#include "si7006.h"
void si7006_init()
{
    i2c_start();//主机发起起始信号
    i2c_write_byte(0x40<