#ifndef _MYI2C_h_
#define _MYI2C_h_

#define ARM32   //定义该行为ARM类型,注释为C51类型

#ifdef  ARM32   
#include "ch32f20x.h"

#define   IIC_SDA_PORT   GPIOB
#define   SDA_Pin    GPIO_Pin_7

#define   IIC_SCL_PORT   GPIOB
#define   SCL_Pin    GPIO_Pin_6

#else 
#include "STC12C5A60S2.h"

#define IIC_SDA_PIN		  P03
#define IIC_SCL_PIN		  P02

#endif
//用户修改区
#define MYI2C_delay_us_cnt   16//延迟1微秒，所需的计数，请根据MCU调整

#define MYI2C_Tick           10//定时调用时间，单位:毫秒，请根据定时调用时间设置，定时调用时间设置范围1-100ms
#define MYI2C_Buffer_Size    20//接收缓冲数组大小，最大读取字节数


//内部定义，请勿擅自修改
#define Wait_Ack_time        199//等待ACK应答时间，单位:微秒
#define MinReadTim           500//读取传感器最小间隔时间，单位:毫秒
#define PowerOnTim           10//上电延迟10毫秒
#define MeasureTim           150//等待测量结果延迟150毫秒

#define SDA_OUT  0  //SDA设置为输出
#define SDA_IN   1  //SDA设置为输入
#define SCL_OUT  2  //SCL设置为输出

#define SDA_R    0  //读取SDA数据
#define SCL_H    1
#define SCL_L    2
#define SDA_H    3
#define SDA_L    4

#define SENSOR_IDLE      0  //
#define SENSOR_MEASURE   1  //
#define SENSOR_COMPLETE  2  //

#define MYI2C_SCK_OD_Mode   MYI2C_GPIO_MODE(SCL_OUT)
#define MYI2C_SDA_OD_Mode   MYI2C_GPIO_MODE(SDA_OUT)
#define MYI2C_SDA_IN_Mode   MYI2C_GPIO_MODE(SDA_IN)

#define MYI2C_SCK_Clr()  MYI2C_GPIO_DATA(SCL_L);MYI2C_Delay_us(2)
#define MYI2C_SCK_Set()  MYI2C_GPIO_DATA(SCL_H);MYI2C_Delay_us(4)

#define MYI2C_SDA_Clr()  MYI2C_GPIO_DATA(SDA_L);MYI2C_Delay_us(2)
#define MYI2C_SDA_Set()  MYI2C_GPIO_DATA(SDA_H);MYI2C_Delay_us(2)

#define I2C_SDA_PIN		  P03
#define I2C_SCL_PIN		  P02

typedef struct
{

	unsigned char Adrr;
	unsigned int  timcnt;
	unsigned char ErrFlag;
	unsigned char Step;	
	unsigned int  SetRTim;

	unsigned char SendByte[MYI2C_Buffer_Size];
	unsigned char ReadByte[MYI2C_Buffer_Size];	
  float RH;//湿度
	float T;//温度
}MYI2C_Struct;

extern  MYI2C_Struct SENx;

/* Exported functions ------------------------------------------------------- */
void  MYI2C_Init(MYI2C_Struct *pst,unsigned int ReadTimMS,unsigned char xAddr);
void  MYI2C_Handle(MYI2C_Struct *pst);
/* Private functions ---------------------------------------------------------*/
void MYI2C_Delay_us(unsigned long nTim);
void MYI2C_IIC_Start(void);
void MYI2C_IIC_Stop(void);
void MYI2C_IIC_Ack(unsigned char ack);
unsigned char MYI2C_IIC_Wait_Ack(unsigned int wait_time);
void MYI2C_Write_IIC_Byte(unsigned char dat);
unsigned char MYI2C_Read_IIC_Byte(void);
//void  MYI2C_Reset(void);
unsigned char MYI2C_READ_FUNC (MYI2C_Struct *pst,unsigned char device_addr,unsigned char register_addr,unsigned char *pDat,unsigned char len);
unsigned char MYI2C_WRITE_FUNC(MYI2C_Struct *pst,unsigned char device_addr,unsigned char register_addr,unsigned char *pDat,unsigned char len);

void MYI2C_GPIO_MODE(unsigned char TYP);
unsigned char MYI2C_GPIO_DATA(unsigned char TYP);
unsigned char  CheckCrc8(unsigned char *pDat,unsigned char Lenth);

#endif //_MYI2C_h_